AD8538 Datasheet, PDF (1/12 Pages) Analog Devices – Low Power, Precision Auto-Zero Op Amp

FEATURES
Low offset voltage: 13 μV maximum
Input offset drift: 0.03 μV/°C
Single-supply operation: 2.7 V to 5.5 V
High gain, CMRR, and PSRR
Low input bias current: 25 pA
Low supply current: 180 μA
APPLICATIONS
Mobile communications
Portable instrumentation
Battery-powered devices
Sensor interfaces
Temperature measurement
Electronic scales
Low Power, Precision Auto-Zero Op Amp
AD8538
PIN CONFIGURATION DIAGRAMS
OUT 1
5 V+
AD8538
V– 2
TOP VIEW
(Not to Scale)
+IN 3
4 –IN
Figure 1. 5-Lead TSOT-23 (UJ-5)
NC 1
−IN 2 AD8538
8 NC
7 V+
+IN 3 TOP VIEW 6 OUT
V− 4 ^{(Not to Scale)} 5 NC
NC = NO CONNECT
Figure 2. 8-Lead SOIC_N (R-8)
GENERAL DESCRIPTION
The AD8538 is a very high precision amplifier featuring
extremely low offset voltage, low input bias current, and low
power consumption. The supply current is less than 180 μA at
5.0 V. Operation is fully specified from 2.7 V to 5.0 V single
supply (±1.35 V to ±2.5 V dual supply).
The AD8538 operates using very low power making this
amplifier ideal for battery-powered devices and portable
equipment.
The AD8538 is specified over the extended industrial temperature
range (−40°C to +125°C). The AD8538 amplifier is available in
5-lead TSOT-23, and 8-lead, narrow body SOIC packages.
Rev. 0
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