SGS Thomson Microelectronics UA748I, UA748CN, UA748CD, UA748C Datasheet
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
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