ADA4051-2 Datasheet, PDF (1/20 Pages) Analog Devices – 1.8 V, Micropower, Zero-Drift, Rail-to-Rail Input/Output Op Amp

1.8 V, Micropower, Zero-Drift,
Rail-to-Rail Input/Output Op Amp
ADA4051-2
FEATURES
Very low supply current: 13 μA
Low offset voltage: 15 μV maximum
Offset voltage drift: 20 nV/°C
Single-supply operation: 1.8 V to 5.5 V
High PSRR: 110 dB minimum
High CMRR: 110 dB minimum
Rail-to-rail input and output
Unity gain stable
Extended industrial temperature range
APPLICATIONS
Pressure and position sensors
Temperature measurements
Electronic scales
Medical instrumentation
Battery-powered equipment
Handheld test equipment
GENERAL DESCRIPTION
The ADA4051-2 is a CMOS, micropower, zero-drift opera-
tional amplifier utilizing an innovative chopping technique.
This amplifier features rail-to-rail input and output swing and
extremely low offset voltage while operating from a 1.8 V to
5.5 V power supply. This amplifier also offers high PSRR and
CMRR, while operating with a supply current of only 13 μA per
amplifier. This combination of features makes the ADA4051-2
amplifier an ideal choice for battery-powered applications where
high precision as well as low power consumption is important.
The ADA4051-2 is specified for the extended industrial temper-
ature range of −40°C to +125°C. The ADA4051-2 amplifier is
available in the standard 8-pin MSOP.
PIN CONFIGURATION
OUT A 1
–IN A 2
+IN A 3
V– 4
ADA4051-2
TOP VIEW
(Not to Scale)
8 V+
7 OUT B
6 –IN B
5 +IN B
Figure 1. 8-Lead MSOP (RM-8)
The ADA4051-2 is a member of a growing series of zero-drift
op amps offered by Analog Devices, Inc. Refer to Table 1 for a
list of these devices.
Table 1. Op Amps
Supple Low Power, 5 V
Single AD8538
Dual
AD8539
Quad
5V
AD8628
AD8629
AD8630
16 V
AD8638
AD8639
Rev. 0
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