ADA4077-4 Ver la hoja de datos (PDF) - Analog Devices
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ADA4077-4 Datasheet PDF : 27 Pages
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Data Sheet
4 MHz, 7 nV/√Hz, Low Offset and
Drift, High Precision Amplifiers
ADA4077-1/ADA4077-2/ADA4077-4
FEATURES
Offset voltage:
25 μV maximum at 25°C (B grade, 8-lead SOIC, single/ dual)
50 μV maximum at 25°C (A grade, 8-lead SOIC, single/ dual)
50 μV maximum at 25°C (A grade, 14-lead SOIC, quad)
Offset voltage drift:
0.25 μV/°C maximum (B grade, 8-lead SOIC, single/dual)
0.55 μV/°C maximum (A grade, 8-lead SOIC, single/dual)
0.75 μV/°C maximum (A grade, 14-lead SOIC, 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:
Specified at ±5 V to ±15 V
Operates at ±2.5 V to ±15 V
Unity gain stable
No phase reversal
Long-term offset voltage drift (10,000 hours): 0.5 μV typical
Temperature hysteresis: 1 μV typical
APPLICATIONS
Process control front-end amplifiers
Optical network control circuits
Instrumentation
Precision sensors and controls
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, resistance temperature detectors (RTDs),
strain gages), process control front-end amplifiers, and precision
diode power measurement in optical and wireless transmission
systems. The ADA4077-1/ADA4077-2/ADA4077-4 are useful in
line powered and portable instrumentation, precision filters,
and voltage or current measurement and level setting.
Unlike other amplifiers, 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. E
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PIN CONNECTION DIAGRAMS
NIC 1
8 NIC
–IN 2 ADA4077-1 7 V+
+IN 3 TOP VIEW 6 OUT
V– 4 (Not to Scale) 5 NIC
NIC = 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
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
14 OUT D
13 –IN D
ADA4077-4
TOP VIEW
(Not to Scale)
12 +IN D
11 V–
10 +IN C
9 –IN C
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
180
VSY = ±5V
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
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