130 μV Maximum Offset Voltage
O
Am
in TSOT
AD8677
Rev. A
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FEATURES
Low offset voltage: 130 µV max
Input offset drift: 1.5 µV/°C max
Low noise: 0.25 V p-p
High gain, CMRR and PSRR: 115 dB min
Low supply current: 1.1 mA
Wide supply voltage range: ±4 V to ±18 V operation
APPLICATIONS
Medical and industrial instrumentation
Sensors and controls
Thermocouple
RTDs
Strain bridges
Shunt current measurements
Precision filters
GENERAL DESCRIPTION
The AD8677 is the next generation of precision, ultralow offset
amplifiers. It builds on the high performance of the OP07 and
integrates lower power (1.1 mA typical), lower input bias
current (±1 nA maximum), and higher CMRR/PSRR (130 dB)
in the small TSOT package. Operation is fully specified from ±5
V to ±15 V supply.
The AD8677 provides higher accuracy than industry-standard
OP07-type amplifiers due to Analog Devices’ iPolar™ process,
which supports enhanced performance in a smaller footprint.
These performance enhancements include wider output swing,
lower power, and higher CMRR (common-mode rejection
ratio) and PSRR (power supply rejection ratio). The AD8677
maintains stability of offsets and gain virtually regardless of
variations in time or temperature. Excellent linearity and gain
accuracy can be maintained at high closed-loop gains.
The AD8677 is fully specified over the extended industrial tem-
perature range of −40°C to +125°C. The AD8677 amplifier is
available in the tiny, 5-lead TSOT and the popular 8-lead,
narrow SOIC lead-free packages.
PIN CONFIGURATIONS
05578-001
AD8677
TOP VIEW
(Not to Scale)
1
2
3
OUT
V–
+IN
5
4
V+
–IN
Figure 1. 5-Lead TSOT (UJ-5)
05578-002
NC = NO CONNECT
AD8677
TOP VIEW
(Not to Scale)
1
2
3
4
NULL
–IN
+IN
V–
8
7
6
5
NULL
V+
OUT
NC
Figure 2. 8-Lead SOIC_N (R-8)
