Datasheet UA748I, UA748CN, UA748CD, UA748C Datasheet (SGS Thomson Microelectronics)

PRECISION SINGLE OPERATIONALAMPLIFIER

.

INPUTOFFSET VOLTAGE : 3mV max. OVER
TEMPERATURE

.

FREQUENCYCOMPENSATIONWITH A
SINGLE 30pF CAPACITOR(C1)

.

OPERATIONFROM±5V to ±15V

.

LOW POWERCONSUMPTION :
50mW AT±15V

.

CONTINUOUS SHORT-CIRCUIT PROTEC­TION

.

OPERATIONASACOMPARATORWITH
DIFFERENTIAL INPUTSASHIGHAS±30V

.

NO LATCH-UP WHENCOMMON-MODE
RANGE IS EXCEEDED

.

SAME PIN CONFIGURATION AS THE
LM101A

N

DIP8

(Plastic Package)

UA748

D

SO8

(Plastic Micropackage)

DESCRIPTION

The UA748 is a general purpose operational am­plifier built on a single silicon chip. The resulting
close match and tight thermal coupling gives low
offsetsand temperaturedrift aswell as fast recov­ery fromthermaltransients.

.

Short-circuit protection

.

Offsetvoltagenull capability

.

Large common-mode and differential voltage
ranges

.

Low power consumption

.

No latch-up
The unity-gain compensation specified makes the
circuit stablefor all feedbackconfigurations,even
with capacitive loads. However, it is possible to

optimize compensation for best high frequency
performanceatanygain.Thelowpowerdissipation
permits highvoltage operationand simplifiespack­aging in full-temperaturerange systems.

ORDER CODES

Part

Number

UA748C 0
UA748I -40
UA748M -55

Example : UA748CN

PIN CONNECTIONS (top view)

1
2
3
4

1 - Offset null 1/ frequency
compensation
2 - Inverting input
3 - Non-inverting input

-

4-V

CC

Temperature

Range

o

C, +70oC ••

o

C, +105oC ••

o

C, +125oC ••

5 - Offset null 2
6 - Output
7-V
8 - Frequency compensation

Package

ND

+

CC

8
7
6
5

December 1997

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UA748

SCHEMATICDIAGRAM

ABSOLUTEMAXIMUMRATINGS

Symbol Parameter UA748M UA748I UA748C Unit

Supply Voltage ±22 V

cc

Differential Input Voltage ±30 V

id

Input Voltage ±15 V

i

Power Dissipation 500 mW

tot

Output Short-circuitDuration Infinite
Operating Free Air Temperature Range -55 to +125 -40 to +105 0 to +70
Storage Temperature Range -65 to +150 -65 to +150 -65 to +150

2/8

V

V

V

P

T

oper

T

stg

o

C

o

C

ELECTRICALCHARACTERISTICS

≤ VCC

±5V

Symbol Parameter

V

io

I

io

I

ib

A

vd

SVR Supply Voltage Rejection Ratio (R

I

CC

V

icm

CMR Common-mode Rejection Ratio(R

≤±20V,C1 = 30pF, T

amb

Input OffsetVoltage (RS≤ 10kΩ)

= +25oC

T

amb

≤ T

T

min.

amb

≤ T

max.

Input OffsetCurrent

= +25oC

T

amb

≤ T

T

min.

amb

≤ T

max.

Input Bias Current

= +25oC

T

amb

≤ T

T

min.

amb

≤ T

max.

Large Signal VoltageGain *

= ±15V, VO±10V, RL=2kΩ)

(V

CC

= +25oC

T

amb

≤ T

T

min.

T

amb

T

min.

amb

= +25oC

≤ T

amb

≤ T

≤ T

max.

max.

Supply Current, no load

= +25oC

T

amb

≤ T

T

min.

amb

≤ T

max.

Input Common Mode Voltage Range (VCC=
±20V)

= +25oC

T

amb

≤ T

T

min.

T

amb

T

min.

amb

= +25oC

≤ T

amb

≤ T

≤ T

max.

max.

= +25oC (unlessotherwise specified)

UA748I/M UA748C

Min. Typ. Max. Min. Typ. Max.

≤ 10kΩ)

S

≤ 10kΩ)

S

0.2 2

25 75

1.5 10

5025100 251510

808096 707096

1.8 3

±15
±15

808096 707096

3

10

20

3

UA748

Unit

mV

2 7.5

10

nA

70 250

300

nA

250

70

V/mV

dB

mA

1.8 3
3

V

±15
±15

dB

I

±V

Output Short-circuit Current (VCC= ±15V) 10 30 50 10 30 50 mA

OS

Output Voltage Swing (VCC= ±15V)

OPP

= +25oCR

T

amb

=2kΩ

R

L

≤ T

T

min.

R

L

amb

=2kΩ

≤ T

max.

SR Slew Rate

= ±10V,RL=2kΩ,CL= 100pF, unity gain) 0.25 0.5 0.25 0.5

(V

i

t

Rise Time

r

K

OV

Z

I

R

o

= ±20mV, RL=2kΩ,CL= 100pF,unity gain) 0.3 0.3

(V

i

Overshoot

= 20mV, RL=2kΩ, CL =100pF, unity gain) 5 5

(V

i

Input Impedance (VCC= ±15V) 1.5 4 1.5 4 MΩ
Output Resistance (VCC= ±15V) 75 75 Ω

GBP Gain Bandwidth Product

= 10mV, RL=2kΩ,CL= 100pF,f = 100kHz) 0.5 1 0.5 1

(V

i

THD Total Harmonic Distortion

DV

DI

(f = 1kHz, A
100pF)

Input OffsetCurrent Drift

io

io

o

C ≤ T

25
T

min.

Input OffsetVoltage Drift

T

min.

= 20dB, RL=2kΩ,VO=2VPP,CL=

V

≤ T

amb

amb

amb

≤ T

≤ T

max.

max.

max.

≤ T

≤ T

= 10kΩ

L

RL= 10kΩ

12

14

10

13
12
10

0.015 0.015

1020100

200

315 630

12
10
12
10

14
13

1020300

600

V/µs

µs

%

MHz

%

pA/

µV/

V

o

C

o

C

3/8

UA748

4/8

UA748

5/8

UA748

6/8

PACKAGE MECHANICAL DATA

8 PINS- PLASTIC DIP

UA748

Dim.

A 3.32 0.131

a1 0.51 0.020

B 1.15 1.65 0.045 0.065

b 0.356 0.55 0.014 0.022

b1 0.204 0.304 0.008 0.012

D 10.92 0.430
E 7.95 9.75 0.313 0.384

e 2.54 0.100
e3 7.62 0.300
e4 7.62 0.300

F 6.6 0260

i 5.08 0.200

L 3.18 3.81 0.125 0.150

Z 1.52 0.060

Min. Typ. Max. Min. Typ. Max.

Millimeters Inches

7/8

UA748

PACKAGE MECHANICAL DATA

8 PINS- PLASTIC MICROPACKAGE (SO)

Dim.

Min. Typ. Max. Min. Typ. Max.

Millimeters Inches

A 1.75 0.069
a1 0.1 0.25 0.004 0.010
a2 1.65 0.065
a3 0.65 0.85 0.026 0.033

b 0.35 0.48 0.014 0.019

b1 0.19 0.25 0.007 0.010

C 0.25 0.5 0.010 0.020
c1 45

o

(typ.)
D 4.8 5.0 0.189 0.197
E 5.8 6.2 0.228 0.244

e 1.27 0.050

e3 3.81 0.150

F 3.8 4.0 0.150 0.157

L 0.4 1.27 0.016 0.050

M 0.6 0.024

S8

Informationfurnished is believedto be accurate andreliable. However,SGS-THOMSON Microelectronics assumes no responsibility
for the consequences ofuse of such information nor forany infringement of patents or otherrights of third partieswhich may result
from its use. No license isgranted byimplication or otherwise under anypatent or patent rights ofSGS-THOMSON Microelectronics.
Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
informationpreviously supplied. SGS-THOMSON Microelectronics products are not authorized foruse as criticalcomponents in life
support devices or systems without express written approvalof SGS-THOMSON Microelectronics.

o

(max.)

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 1997 SGS-THOMSON Microelectronics – Printed in Italy– All Rights Reserved

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