ADA4077-2 Datasheet, PDF (1/20 Pages) Analog Devices – The ADA4077-2 is a dual amplifier featuring extremely low offset voltage and drift and low input bias current, noise, and power consumption.

Data Sheet
4 MHz, 7 nV/√Hz, Low Offset and
Drift, High Precision Amplifier
ADA4077-2
FEATURES
Low offset voltage (maximum specifications)
B-Grade: 25 µV (SOIC)
A-Grade: 50 µV (SOIC), 90 µV (MSOP)
Very low offset voltage drift
B-Grade: 0.25 µV/°C (SOIC)
A-Grade: 0.55 µV/°C (SOIC) and 1.2 µV/°C (MSOP), specified
over −40°C to +125°C, MSL1 rated
Low input bias current: 1.0 nA maximum
Low noise: 7 nV/√Hz typical
CMRR, PSRR, and AVO > 120 dB minimum
Low supply current: 400 µA per amplifier typical
Wide bandwidth: 4.0 MHz
Dual-supply operation: ±5 V to ±15 V
Unity-gain stable
No phase reversal
APPLICATIONS
Process control front-end amplifiers
Wireless base station control circuits
Optical network control circuits
Instrumentation
Sensors and controls: thermocouples, resistor thermal
detectors (RTDs), strain bridges, and shunt current
measurements
Precision filters
GENERAL DESCRIPTION
The ADA4077-2 is a dual amplifier featuring extremely low offset
voltage and drift and low input bias current, noise, and power
consumption. Outputs are stable with capacitive loads of more
than 1000 pF with no external compensation.
Applications for this amplifier include sensor signal conditioning
(such as thermocouples, RTDs, strain gauges), process control
front-end amplifiers, and precision diode power measurement
in optical and wireless transmission systems. The ADA4077-2 is
useful in line powered and portable instrumentation, precision
filters, and voltage or current measurement and level setting.
Unlike the amplifiers of some competitors, the ADA4077-2 is
specified over the extended industrial temperature range for
operation from −40°C to +125°C with MSL1 rating for the most
demanding operating environments. It is available in 8-lead SOIC
(including the B-Grade) and MSOP (A-Grade only) packages.
PIN CONNECTION DIAGRAMS
OUT A 1
–IN A 2
+IN A 3
V– 4
ADA4077-2
TOP VIEW
(Not to Scale)
8 V+
7 OUT B
6 –IN B
5 +IN B
Figure 1. ADA4077-2 Pin Configuration, 8-Lead MSOP
OUT A 1
8 V+
–IN A 2 ADA4077-2 7 OUT B
+IN A 3 TOP VIEW 6 –IN B
V– 4 ^{(Not to Scale)} 5 +IN B
Figure 2. ADA4077-2 Pin Configuration, 8-Lead SOIC_N
200
V_SY = ±5V
180 _SOIC
160
140
120
100
80
60
40
20
0
V_OS (µV)
Figure 3. Offset Voltage Distribution
Table 1. Evolution of Precision Devices by Generation
Op Amp 1st 2nd 3rd
4th
5th
6th
Single OP07 OP77 OP177 OP1177 AD8677
Dual
OP2177
ADA4077-2
Quad
OP4177
Rev. 0
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