Dual, Low Power, Precision
Rail-to-Rail Output Op Amp
AD8622
FEATURES
PIN CONFIGURATIONS
Very low offset voltage
125 μV maximum
OUT A
–IN A
+IN A
V–
1
2
3
4
8
7
6
5
V+
AD8622
OUT B
–IN B
+IN B
TOP VIEW
(Not to Scale)
Supply current: 215 μA/amp typical
Input bias current: 200 pA maximum
Low input offset voltage drift: 1.2 μV/°C maximum
Very low voltage noise: 11 nV/√Hz
Operating temperature: −40°C to +125°C
Rail-to-rail output swing
Figure 1. 8-Lead Narrow-Body SOIC
OUT A
–IN A
+IN A
V–
1
2
3
4
8
7
6
5
V+
AD8622
OUT B
–IN B
+IN B
TOP VIEW
(Not to Scale)
Unity gain stable
2.5 V to 15 V operation
Figure 2. 8-Lead MSOP
APPLICATIONS
Portable precision instrumentation
Laser diode control loops
Strain gage amplifiers
Medical instrumentation
Thermocouple amplifiers
GENERAL DESCRIPTION
Table 1. Low Power Op Amps
The AD8622 is a dual, precision rail-to-rail output operational
amplifier with a low supply current of only 350 μA maximum
over temperature and supply voltages. It also offers ultralow
offset, drift, and voltage noise combined with very low input
bias current over the full operating temperature range.
Supply
40 V
36 V
12 V to 16 V
5 V
Single
OP97
OP777
OP1177
OP727
OP2177
AD706
OP747
OP4177
AD704
OP196
AD8663
OP296
AD8603
Dual
OP297
OP497
AD8607
AD8609
AD8667
With typical offset voltage of only 10 μV, offset drift of 0.5 μV/°C,
and noise of only 0.2 ꢀV p-p (0.1 Hz to 10 Hz), it is perfectly
suited for applications where large error sources cannot be
tolerated. Many systems can take advantage of the low noise,
dc precision, and rail-to-rail output swing provided by the
AD8622 to maximize the signal-to-noise ratio and dynamic
range for low power operation. The AD8622 is specified for the
extended industrial temperature range of −40°C to +125°C and
is available in lead-free SOIC and MSOP packages.
Quad
OP496
AD8669
Rev. 0
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