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Analog Devices - High Precision Amplifiers

Numéro de référence ADA4077-1
Description High Precision Amplifiers
Fabricant Analog Devices 
Logo Analog Devices 





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ADA4077-1 fiche technique
Data Sheet
4 MHz, 7 nV/√Hz, Low Offset and
Drift, High Precision Amplifiers
ADA4077-1/ADA4077-2/ADA4077-4
FEATURES
Offset voltage and offset voltage drift
B grade: 25 µV and 0.25 µV/°C at VSY = ±5 V
A grade maximum offset at 25°C and maximum drift from
−40°C to +125°C
SOIC: 50 µV and 0.55 µV/°C single/dual and 0.75 µV/°C quad
MSOP: 90 µV and 1.2 µV/°C dual and 120 µV and 1.2 µV/°C
single
TSSOP: 120 µV and 1.2 µV/°C quad
MSL1 rated
Low input bias current: 1 nA maximum at TA = 25°C
Low voltage noise density: 6.9 nV/√Hz typical at f = 1000 Hz
CMRR, PSRR, and AV > 120 dB minimum
Low supply current: 400 µA per amplifier typical
Wide gain bandwidth product: 3.9 MHz at ±5 V
Dual-supply operation: ±2.5 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, RTDs, strain bridges,
and shunt current measurements
Precision filters
GENERAL DESCRIPTION
The single ADA4077-1, dual ADA4077-2, and quad ADA4077-4
amplifiers feature 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 ADA4077-1,
ADA4077-2, and ADA4077-4 are useful in line powered and
portable instrumentation, precision filters, and voltage or
current measurement and level setting.
Unlike amplifiers by some competitors, the ADA4077-1/
ADA4077-2/ADA4077-4 have an MSL1 rating that is compliant
with the most stringent of assembly processes, and they are
specified over the extended industrial temperature range from
−40°C to +125°C for the most demanding operating environments.
Rev. D
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
PIN CONNECTION DIAGRAMS
NC 1
8 NC
–IN 2 ADA4077-1 7 V+
+IN 3 TOP VIEW 6 OUT
V– 4 (Not to Scale) 5 NC
NC = NO CONNECT. NOT INTERNALLY CONNECTED.
Figure 1. ADA4077-1, 8-Lead SOIC (and 8-Lead MSOP)
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 2. ADA4077-2, 8-Lead MSOP (and 8-Lead SOIC)
OUT A 1
14 OUT D
–IN A 2
13 –IN D
+IN A 3
V+ 4
+IN B 5
ADA4077-4
TOP VIEW
(Not to Scale)
12 +IN D
11 V–
10 +IN C
–IN B 6
9 –IN C
OUT B 7
8 OUT C
Figure 3. ADA4077-4, 14-Lead TSSOP (and 14-Lead SOIC)
The ADA4077-1 and ADA4077-2 are available in an 8-lead SOIC
package, including the B grade, and in an 8-lead MSOP (A grade
only). The ADA4077-4 is offered in a 14-lead TSSOP and a 14-lead
SOIC package.
200
VSY = ±5V
180 SOIC
160
140
120
100
80
60
40
20
0
VOS (µV)
Figure 4. Offset Voltage Distribution
Table 1. Evolution of Precision Devices by Generation
Op Amp First Second Third Fourth Fifth
Sixth
Single OP07 OP77 OP177 OP1177 AD8677 ADA4077-1
Dual
OP2177
ADA4077-2
Quad
OP4177
ADA4077-4
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2012–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com

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