1/7
■ INPUT OFFSET VOLTAGE : 3mV max. OVER
TEMPERATURE
■ FREQUENCY COMPENSATION WITH A
SINGLE 30pF CAPACITOR (C1)
■ OPERATION FROM ±5V to ±15V
■ LOW POWER CONSUMPTION :
50mW AT ±15V
■ CONTINUOUS SHORT-CIRCUIT PROTEC-
TION
■ OPERATION AS A COMPARATOR WITH
DIFFERENTIAL INPUTS AS HIGH AS ±30V
■ NO LATCH-UP WHEN COMMON-MODE
RANGE IS EXCEEDED
■ SAME PIN CONFIGURATION AS THE
LM101A
DESCRIPTION
The UA748 is a general purpose operational am-
plifier built on a single silicon chip. The resulting
close match and tight thermal coupling gives low
offsets and temperature drift as well as fast recov-
ery from thermal transients.
■ Short-circuit protection
■ Offset voltage null capability
■ Large common-mode and differential voltage
ranges
■ Low power consumption
■ No latch-up
The unity-gain compensation specified makes the
circuit stable for all feedback configurations, even
with capacitive loads. However, it is possible to
optimize compensation for best high frequency
performance at any gain. The low power dissipa-
tion permits high voltage operation and simplifies
packaging in full-temperature range systems.
ORDER CODE
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
PIN CONNECTIONS (top view)
Part Number Temperature Range
Package
ND
UA748C 0°C, +70°C
••
UA748I -40°C, +105°C
••
UA748M -55°C, +125°C
••
Example : UA748CN
N
DIP8
(Plastic Package)
D
SO8
(Plastic Micropackage)
1
2
3
4
8
6
5
7
1 - Offset null 1/frequency compensation
2 - Inverting input
3 - Non-inverting input
4 - V
CC
-
5 - Offset null 2
6 - Output
7 - V
CC
+
8 - Frequency compensation
UA748
PRECISION SINGLE OPERATIONAL AMPLIFIER
December 2001
