HP 654A User manual

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1

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31

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Operating

Manual

Analog

Programmable

DC

Power

Supplies

Series

654xA,655xA,657xA

HP

Part

No.

5959-3374

SERIAL

NUMBERS

HP

Model

6541A:3215A~00108

and

Above*

HP

Model

6542A:3221A-00113

and

Above*

HP

Model

6543A:3218A-00113

and

Above*

HP

Mode!

6544A:3219A-00113

and

Above*

HP

Model

6545A:3215A

™

00108

and

Above*

HP

Model

6551A;3207A-00103

and

Above*

HP

Model

6552A;3203A-00103

and

Above*

HP

Model

6553A:3202A-00103

and

Above*

HP

Model

6554A:3205A"00103

and

Above*

HP

Model

6555A:3209A-^0108

and

Above*

HP

Mode!

6571A:3206A-00103

and

Above*

HP

Mode!

6572A;3216A-00108

and

Above*

HP

Model

6573A:3223A-00108

and

Above*

HP

Model

6574A:3230A-00113

and

Above*

HP

Model

6575A:3242A-00113

and

Above*

*

For

instruments

with

higher

serial

numbers,

a

change

page

may

be

Included.

HEWLETT

WlrJB

PACKARD

Microfiche

Part

No.

5959-3375

Printed

in

USA

January,

1993

CERTIFICATION

Hewlett-Packard

Company

certifies

that

this

product

met

its

published

specifications

at

time

of

shipment

from

ike

factory.

Hewlett-Packard

further

certifies

that

Us

calibration

measurements

are

traceable

to

the

United

States

National

Bureau

of

Standards,

to

the

extend

allowed

by

the

Bureau’s

calibration

facility,

and

to

the

calibration

facilities

of

other

International

Standards

Organization

members.

WARRANTY

This

Hewlett-Packard

hardware

product

is

warranted

against

defects

in

material

and

workmanship

for

a

period

of

three

years

from

date

of

delivery.

TIP

software

and

firmware

products,

which

are

designated

by

HP

for

use

with

a

hardware

product

and

when

properly

installed

on

that

hardware

product,

are

warranted

not

to

fail

to

execute

their

programming

instructions

due

to

defects

in

material

and

workmanship

for

a

period

of

90

days

from

date

of

delivery.

During

the

warranty

period,

HP

Company

will,

at

its

option,

either

repair

or

replace

products

which

prove

to

be

defective.

HP

does

not

warrant

that

the

operation

of

the

software,

firmware,

or

hardware

shall

be

uninterrupted

or

error

free.

For

warranty

service,

with

the

exception

of

warranty

options,

this

product

must

be

returned

to

a

service

facility

designated

by

HP.

Customer

shall

prepay

shipping

charges

(and

shall

pay

all

duty

and

taxes)

for

products

returned

to

HP

for

warranty

service.

Except

for

products

returned

to

Customer

from

another

country,

HP

shall

pay

for

return

of

products

to

Customer.

Warranty

services

outside

the

country

of

initial

purchase

are

included

in

HP’s

product

price

only

if

Customer

pays

HP

international

prices

(defined

as

destination

local

currency

price,

or

U.S.

or

Geneva

Export

price).

If

HP

is

unable,

within

a

reasonable

time,

to

repair

or

replace

any

product

to

condition

as

warranted,

the

Customer

shall

be

entitled

to

a

refund

of

the

purchase

price

upon

return

of

the

product

to

HP.

LIMITATION

OF

WARRANTY

The

foregoing

warranty

shall

not

apply

to

defects

resulting

from

improper

or

inadequate

maintenance

by

the

Customer,

Customer-supplied

software

or

interfacing,

unauthorized

modification

or

misuse,

operation

outside

of

the

environmental

specifications

for

the

product,

or

improper

site

preparation

and

maintenance.

NO

OTHER

WARRANTY

IS

EXPRESSED

OR

IMPLIED.

HP

SPECIFICALLY

DISCLAIMS

THE

IMPLIED

WARRANTIES

OF

MERCHANTABILITY

AND

FITNESS

FOR

A

PARTICULAR

PURPOSE.

EXCLUSIVE

REMEDIES

THE

REMEDIES

PROVIDED

HEREIN

ARE

THE

CUSTOMER’S

SOLE

AND

EXCLUSIVE

REMEDIES.

HP

SHALL

NOT

BE

LIABLE

FOR

ANY

DIRECT,

INDIRECT,

SPECIAL,

INCIDENTAL,

OR

CONSEQUENTIAL

DAMAGES,

WHETHER

BASED

ON

CONTRACT

TORT,

OR

ANY

OTHER

LEGAL

THEORY.

ASSISTANCE

The

above

siaiemenis

apply

only

to

the

standard

product

warranty.

Warranty

options,

extended

support

contracts,

product

maintenance

agreements

and

customer

assistance

agreements

are

also

available.

Contact

your

nearest

Hewlett-Packard

Sales

and

Service

office

for

further

information

on

HP

*s

full

line

of

Support

Programs.

MANUAL

CHANGES

Models

65UIA,

65U2A,

65U3A,

65UUA,

65U5A

Models

655IA,

6552A,

6553A,

655

^A,

6555A

Models

657IA,

6572A,

6573A,

657UA,

6575A

Manual

HP

P/N

5959

^

337

^

Manual

Printing

Date

01/93

Change

Date

06/l6/93

Make

all

corrections

in

the

manual

listed

under

"Errata."

Then,

check

the

following

table

for

your

power

supply

serial

number

and

enter

any

change,(s)

listed

for

that

serial

number.

MODEL

65UIA

MODEL

655IA

SERIAL

Prefix

Number

MAKE

CHANGES

ERRATA

MODEL

6542

A

SERIAL

Prefix

Number

MAKE

CHANGES

ERRATA

MODEL

6552A

SERIAL

Prefix

Number

MAKE

CHANGES

ERRATA

MODEL

65U3A

MAKE

CHANGES

ERRATA

MODEL

6553A

MAKE

CHANGES

ERRATA

MODEL

65UUA

SERIAL

Number

MAKE

CHANGES

ERRATA

MODEL

655

hA

SERIAL

Prefix

Number

MAKE

CHANGES

ERRATA

MODEL

65U5A

MAKE

CHANGES

ERRATA

MODEL

6555A

Number

I

MAKE

CHANGES

continued

Page

2

-

HP

P/N

5959-3374

changes

MODEL

657

IA

SERIAL

Prefix

I

Number

j

MAKE

CHANGES

all

I

!

ERRATA

MODEL

6572A

1

SERIAL

1

1

1

Prefix

1

Number

1

MAKE

CHANGES

i

1

ALL

1

1

!

1

i

ERRATA

j

MODEL

6

573A

SERIAL

^

-I

Prefix

I

Number

j

MAKE

CHANGES

ALL

I

j

ERRATA

MODEL

6574a

-

SERIAL

I

Prefix

I

Number

j

MAKE

CHANGES

all

I

I

ERRATA

MODEL

6575

A

'""serial

^

~

Prefix

i

Number

|

MAKE

CHANGES

.

!

.

.

all

i

I

ERRATA

ERRATA:

On

page

4-12,

make

the

following

correction

to

part

B

of

Figure

4-9:

On

voltage

programming

source

"A",

move

the

VP

wiring

connection

from

the

top

pin

of

the

connector

to

the

second

pin

from

the

top

(see

correct

position

in

part

A).

SAFETY

SUMMARY

The

following

general

safety

precautions

must

be

observed

during

all

phases

of

operation

of

this

instrument.

Failure

to

comply

with

these

precautions

or

with

specific

warnings

elsewhere

in

this

manual

violates

safety

standards

of

design,

manufacture,

and

intended

use

of

the

instrument.

Hewlett-Packard

Company

assumes

no

liability

for

the

user’s

failure

to

comply

with

these

requirements.

BEFORE

APPOTNG

POWER

Verify

that

the

instrument

is

set

to

match

the

available

line

voltage.

GROUND

THE

INSTRUMENT

This

product

is

a

Safety

Class

1

instrument

(provided

with

a

protective

earth

terminal).

To

minimize

shock

hazard,

the

instrument

chassis

and

cover

must

be

connected

to

an

electrical

ground.

The

instrument

must

be

connected

to

the

ac

power

mains

through

a

three-conductor

power

cable,

with

the

third

wire

firmly

connected

to

an

electrical

ground

(safety

ground)

at

the

power

outlet.

Any

interruption

of

the

protective

(grounding)

conductor

or

disconnection

of

the

protective

earth

terminal

will

cause

a

potential

shock

hazard

that

could

result

in

personal

injury.

If

the

instrument

is

to

be

energized

via

an

external

autotransformer

for

voltage

reduction,

be

certain

that

the

autotransformer

common

terminal

is

connected

to

the

neutral

(earth

pole)

of

the

ac

power

lines

(supply

mains).

FUSES

Only

fuses

with

the

required

rated

current,

voltage,

and

specified

type

(normal

blow,

time

delay,

etc.)

should

be

used.

Do

not

use

repaired

fuses

or

short-circuited

fuseholders.

To

do

so

could

cause

a

shock

or

fire

hazard.

DO

NOT

OPERATE

IN

AN

EXPIOSIVE

ATMOSPHERE

Do

not

operate

the

instrument

in

the

presence

of

flammable

gases

or

fumes.

DO

NOT

REMOVE

THE

INSTUMENT

COVER

Operating

personnel

must

not

remove

instrument

covers.

Component

replacement

and

internal

adjustments

must

be

made

only

by

qualified

service

personnel.

DO

NOT

EXCEED

INPUT

RATINGS

This

instrument

may

be

equipped

with

a

line

filter

to

reduce

electromagnetic

interference

and

must

be

connected

to

a

properly

grounded

receptacle

to

minimize

electric

shock

hazard.

Operation

at

line

voltages

or

frequencies

in

excess

of

those

stated

on

the

line

rating

label

may

cause

leakage

currents

in

excess

of

5.0

mA

peak.

SAFETY

SYMBOLS

A

-I-

I

'

\

Refer

to

the

operating

manual.

Indicates

earth

ground

terminal.

WARNING

This

sign

denotes

a

hazard.

It

calls

attention

to

a

procedure,

practice,

or

the

like

which,

if

not

correctly

performed

or

adhered

to,

could

result

in

personal

injury.

Do

not

proceed

beyond

a

WARNING

sign

until

the

indicated

conditions

are

fully

understood

and

met.

CAUTION

This

sign

denotes

a

hazard.

It

calls

attention

to

a

procedure,

practice,

or

the

like

which,

if

not

correctly

performed

or

adhered

to,

could

result

in

damage

to

or

destruction

of

part

or

all

of

the

instrument.

Do

not

proceed

beyond

a

CAUTION

sign

until

the

indicated

conditions

are

fully

understood

and

met.

Instruments

that

appear

damaged

or

defective

should

be

made

inoperative

and

secured

against

unintended

operation

until

they

can

be

repaired

by

qualified

service

personnel.

il

Maniiiacturer’s

Name:

Manufacturer’s

Address:

DECLARATION

OF

CONFORMITY

according

to

ISO/IEC

Guide

22

and

EN

45014

Hewlett-Packard

Company

150

Green

Pond

Road

Rockaway,

New

Jersey

07866

U.S.A.

declares

tiiat

this

equipment

conforms

to

the

following

product

speciftcations:

Safety:

EMC:

HD

401S1/IEC

348

EN

55011

(1991)/CISPRrll

Group

I

Class

B

EN

50082-1

(1991)/IEC

801-2

4

kV

CD,

8

kV

AD

EN

50082-1

(1991)/IEC

801-3

3

V/m

EN

50082-1

(1991)/IEC

801-4

1

kV

New

Jersey

Location

21

September

1992

Date

Mord

Shamir/Quality

Manager

Herstellerbescheinigung

Diese

Information

steht

im

Zusammenhang

mit

den

Anforderungen

der

Maschinenlarminformationsverordnung

vom

18

Januar

1991.

*

Schalldruckpegel

Lp

<

70

dB{A)

*

Am

Arbeitsplatz

*

Normaler

Betrieb

*

Nach

EN

27779

(Typpriifung)

Manufacturer’s

Declaration

This

statement

is

provided

to

comply

with

the

requirements

of

the

German

Sound

Emission

Directive,

from

18

January

1991.

This

product

has

a

sound

pressure

emission

(at

the

operator

position)

<

70

dB.

*

Sound

Pressure

Lp

<

70

dB(A)

*

At

Operator

Position

*

Normal

Operation

*

According

to

EN

27779

(Type

Test).

Printing

History

The

edition

and

current

revision

of

this

manual

are

indicated

below.

Reprints

of

this

manual

containing

minor

corrections

and

updates

may

have

the

same

printing

date.

Revised

editions

are

identified

by

a

new

printing

date.

A

revised

edition

incorporates

all

new

or

corrected

material

since

the

previous

printing

date.

Changes

to

the

manual

occurring

between

revisions

are

covered

by

change

sheets

shipped

with

the

manual.

Also,

if

the

serial

number

prefix

of

your

power

supply

is

higher

than

those

listed

on

the

title

page

of

this

manual,

then

it

may

or

may

not

include

a

change

sheet.

That

is

because

even

though

the

higher

serial

prefix

indicates

a

design

change,

the

change

may

not

affect

the

content

of

the

manual.

Edition

1

...

February

1992

(HP

Models

6541A

-

6545A,

6551A

-

6555A,

6571

-

6575A)

.April

1992

(HP

Models

6541A

-

6545A,

6551A

-

6555A,

6571

-

6575A)

.January

1993

(HP

Models

6541A

-

6545A,

6551A

-

6555A,

6571

-

6575A)

©

Copyright

1992,

1993

Hewlett-Packard

Company

This

document

contains

propretary

information

protected

by

copyright.

All

rights

are

reserved.

No

part

of

this

document

may

be

photocopied,

reproduced,

or

translated

into

another

language

without

the

prior

consent

of

Hewlett-Packard

Company.

The

information

contained

in

this

document

is

subject

to

change

without

notice.

Hi

GENERAL

INFORMATION

INTRODUCTION

This

is

the

operating

manual

for

your

HP

Series

654xA,

655xA,

and

657xA

power

supplies.

Unless

otherwise

stated,

the

information

in

this

manual

applies

to

all

models

in

the

series.

These

supplies

are

the

analog-programmable

counterparts

of

the

HP

Series

664xA,

665xA,

and

667xA

HP-IB

System

power

supplies.

SAFETY

CONSIDERATIONS

This

power

supply

is

a

Safety

Class

1

instrument,

which

means

it

has

a

protective

earth

terminal.

That

terminal

must

be

connected

to

earth

ground

through

a

power

source

equipped

with

a

3-wire

ground

receptacle.

Refer

to

the

Safety

Summary

page

at

the

beginning

of

this

manual

for

general

safety

information.

Before

installation

or

operation,

check

the

power

supply

and

review

this

manual

for

safety

warnings

and

instructions.

Safety

warnings

for

specific

procedures

are

located

at

appropriate

places

in

the

manual.

INSTRUMENT

IDENTIFICATION

The

power

supply

is

identified

by

a

unique

two-part

serial

number,

such

as

3143A

00177.

The

first

part,

or

prefix,

is

a

number-letter

combination

that

provides

the

following

information:

3143

The

year

and

week

of

manufacture

or

last

significant

design

change.

Add

1960

to

the

hrst

two

digits

to

determine

the

year.

For

example,

31=1991,

32=1992,

etc.

The

last

two

digits

specify

the

week

of

the

year

(43

=

the

43rd

week).

A

The

letter

indicates

the

coimtry

of

manufacture,

where

A

=

USA.

OPTIONS

Option

Description

Used

with

HP

Series

e64xA

eSBxA

657xA

lOO

Input

power

100

Vac,

nominal

X

X

200

input

power

200

Vac,

nominal

X

220

Input

power

220

Vac,

nominal

X

X

230

Input

power

230

Vac,

nominal

X

X

240

Input

power

240

Vac,

nominal

X

X

831

Power

cord,

12

AWQ,

UL

listed,

CSA

certified,

without

pluR

X

832

Power

cord.

4

harmonized,

without

pIuR

X

8S4

Power

cord.

10

AWQ,

UL

listed,

CSA

certifled,

without

pluR

X

841

Power

cord,

13

AWG,

UL

listed,

CSA

certified,

with

NEMA

e.30P

3OA/aB0V

plur

X

842

Power

cord,

4

mm^,

harmonised,

with

lEC

809

S3A/230V

pluR

X

843

Power

cord,

13

AWQ,

UL

listed,

CSA

certified,

with

JIS

C8S0S

3BA/3S0V

ptuR

X

644

Power

cord,

10

AWG,

UL

listed,

CSA

certified,

with

NEMA

LO-SOP

S0A/250V

locking

plug

X

806

Rack

mount

kit

(HP

6062-8974)

X

Rack

mount

kit

(HP

5O62-S07T)

X

X

006

Rack

mount

kit

with

handles

(HP

5062-8876)

X

Rack

mount

kit

with

handles

(HP

6062-8983)

X

X

910

Service

manual

with

extra

Operating

manual

X

X

X

Introduction

General

Information

1-1

ACCESSORIES

HP

No.

Description

1494-0058

Heavy

duty

slide

mount

kit

for

Series

657xA

1494-0059

Standard

slide

mount

kit

for

Series

654xA/655xA

DESCRIPTION

These

units

form

a

family

of

unipolar,

analog

programmable

power

supplies

organized

as

follows:

Family

Series

654xA

Series

655xA

Series

657xA

Power

Models

200

W

HP

6541A,

6542A,

6543A,

6544A,

6545A

500

W

HP

6551A,

6552A,

6553A,

6554A,

6555A

2000

W

HP

6571A,

6572A,

6573A,

6574A,

6575A

This

family

is

similar

in

performance

to

the

corresponding

HP-IB

system

power

supplies.

Analog

Family

Corresponding

HP-IB

Family

HP

654xA

HP

664xA

HP

655xA

HP

665xA

HP

657xA

HP

667xA

Each

power

supply

is

programmable

locally

from

the

front

panel

or

remotely

via

a

rear-panel

analog

control

port.

Operational

features

include:

■

Constant

voltage

(CV)

or

constant

current

(CC)

output

over

the

rated

output

range.

■

Built-in

overvoltage

(OV),

overcurrent

(OC),

and

overtemperature

(OT)

protection.

■

Automatic

turn-on

selftest

■

Pushbutton

nonvolatile

storage

and

recall

of

up

to

5

operating

states

■

Local

or

remote

sensing

of

output

voltage

■

Auto-parallel

operation

for

increased

total

current

m

Series

operation

for

increased

total

voltage

■

Analog

input

for

remote

programming

of

voltage

and

current

■

Voltage

output

for

external

monitoring

of

output

current

■

User

calibration

from

the

front

panel

Front

Panel

Programming

The

front

panel

has

both

rotary

(RPG)

and

keypad

controls

for

setting

the

output

voltage

and

current.

The

panel

display

provides

digital

readouts

of

the

output

voltage

and

current.

Other

front

patnel

controls

permit:

■

Enabling

or

disabling

the

output

■

Setting

the

overvoltage

protection

(OVP)

trip

voltage

m

Enabling

or

disabling

the

overcurrent

protection

(OCP)

feature

■

Saving

and

recalling

operating

states

■

Calibrating

thepower

supply

Analog

Programming

The

power

supply

has

an

analog

port

for

remote

programming.

The

output

voltage

and/or

current

of

the

power

supply

may

be

controlled

by

d-c

programming

voltages

applied

to

this

port.

The

port

also

provides

a

monitor

output

that

supplies

a

d-c

voltage

proportional

to

the

output

current.

1-2

General

Information

Accessories

Output

Characteristic

General

The

power

supply

can

operate

in

either

CV

(constant

voltage)

or

CC

(constant

current)

over

its

voltage

and

current

ratings

(see

“Performance

Specifications”).

The

operating

locus

is

shown

by

the

Output

Characteristic

Curve

in

“Supplemental

Characteristics”.

The

operating

point

is

determined

by

the

voltage

setting

(Vg),

the

current

setting

(Is),

and

the

load

impedance.

Two

operating

points

are

shown.

Point

1

is

defined

by

the

load

line

cutting

the

operating

locus

in

the

constant-voltage

region.

This

region

defines

the

CV

mode.

Point

2

is

defined

by

the

load

line

cutting

the

operating

locus

in

the

constant-current

region.

This

region

defines

the

CC

mode.

Downprogramming

The

power

supply

can

sink

current

for

more

rapid

down

programming

in

the

CV

mode.

For

Series

654xA

and

655xA

supplies,

this

capability

is

defined

by

the

second

quadrant

area

(-!«)

of

the

Output

Characteristic

Curve.

These

supplies

can

sink

about

20%

of

their

maximum

rated

positive

output

current.

For

Series

657xA

,

this

is

an

uncharacterized

current-sinking

area

that

provides

a

limited

downprogramming

capability.

SPECIFICATIONS

AND

SUPPLEMENTAL

CHARACTERISTICS

Table

1-1

lists

the

specifications

and

supplemental

characteristics

of

the

Series

654xA

and

655xA

power

supplies.

Table

1-2

lists

the

specifications

and

supplemental

characteristics

for

the

Series

657xA

power

supplies.

Specifications

are

warranted

over

the

specified

temperature

range.

Supplemental

characteristics

are

not

warranted

but

are

descriptions

of

performance

determined

either

by

design

or

type

testing.

Output

Characteristic

General

Information

1-3

Table

1-1a.

Performance

Specifications

for

Series

654xA

and

655xA

(Note

1)

Parameter

HP

Model

N

umber

and

Parameter

Value

Speafications

are

warranted

over

the

temperature

range

0

to

55°

C

with

a

resistive

load

and

the

output

connected

for

local

sensing.

Output

Ratings

Voltage:

6541A/6551A

6542A/6552A

6543A/6553A

6544A/6554A

6545A/6555A

0.8V

0-

20

V

0-

35

V

0

■

60

V

0-

120

V

Current:*

6541A

6542A

6543A

6S44A

6545A

0

-

20

A

0-

10

A

0

-

6

A

0-

3.5

A

0-

1.5

A

6551A

65S2A

6553A

0S54A

65S5A

0-50

A

0-

25

A

0-

15

A

0.9

A

0

-

4

A

*

Derate

the

output

current

1

%

per

®C

from

40°

C

to

55°

C.

Front

Panel

Programming

Acc

uracy

(®

26°

C

±

5“

C)

6541A/6551A

6542A/6552A

6543A/6553A

C544A/6554A

6545A/6555A

Voltage:

0.06%+5

mV

0.06%-|-10

mV

0.06%-i-15

mV

0.06%-f-26

mV

0.06%+51

mV

Current:

6541A

6542A

6543A

6544A

6545A

0.14%-f26inA

0.14%-f-13

mA

0.14%-(-7mA

0.14%-f4

mA

0.14%+2

mA

6551A

6552A

6553A

6554A

6555A

0.15%-f-60mA

0.15%-)-25

mA

0.15%-(-13

mA

0.15%4-8

mA

Ripple

Noise

(from

20

Hz

to

20

MHz

with

outputs

ungrounded,

or

with

either

outout

t

grounded)

Constant

Voltage

(rms):

6541A/6551A

6542A/6552A

6543A/6553A

6544A/6554A

6545A/6555A

300

mV

300

mV

400

mV

500

mV

700

mV

Constant

Voltage

(p-p):

6541A/6551A

6542A/6552A

6543A/6553A

6544A/6554A

6545A/6555A

3

mV

3

mV

4

mV

5

mV

7

mV

Constant

Current

(rms):

6541A

6542A

6543A

6544A

6545A

10

mA

5

mA

3

mA

1.5

mA

1

mA

6551A

6552A

6553A

6554A

6555A

25

mA

10

mA

5

mA

2

mA

Readback

Accuracy

(with

respe

ct

to

actual

output

®

25°

C

±

5°

C)

Voltage:

6541A/6551A

6542A/6552A

6543A/6553A

6544A/6554A

6545A/6555A

0.07%-i-6

mV

0.07%-|-15

mV

0.07%-f25

mV

0.07%+40

mV

0.07%-|-80

mV

+Current:

6541A

6542A

6543A

6544A

6545A

0.15%-}-26mA

0.15%-}-13mA

0.i5%-|-6.7

mA

0.15%-|-4.1

mA

0.15%-|-1.7

mA

6551A

6552A

6553A

6554A

6555A

0.15%+67mA

0.15%4-26

mA

0.15%+15

mA

0.15%+7

mA

0.15%+3mA

-Current:

6641A

6542A

6S43A

6S44A

6545A

0.35%+40

mA

0.35%+20

mA

0.35%-|-12

mA

0.35%+6.8

mA

0.35%+2.9

mA

6551A

6S52A

6553A

6554A

C555A

0.35%-l-100

mA

0.35%+44

mA

0.35%+24

mA

0.35%-l-15

mA

Load

Regulation

(change

in

out

put

voltage

or

current

for

any

load

change

within

ratings)

Voltage:

6541A/6551A

6542A/6552A

6543A/6553A

6544A/6554A

C545A/6555A

1

mV

2

mV

3

mV

4

mV

5

mV

Current:

6541A

6542A

6543A

6544A

6545A

1

mA

0.5

mA

0.25

mA

0.25

mA

0.25

mA

6551A

6552A

6553A

6554A

6555A

2

mA

1

mA

0.5

mA

0.5

mA

0.5

mA

Note

1:

For

Supplemental

Characteristics,

see

Table

1-lb

1-4

General

Information

Series

654xA/655xA

Specifications