4 MHz, 7 nV/√Hz, Low Offset and

Drift, High Precision Amplifiers

Data Sheet

ADA4077-1/ADA4077-2/ADA4077-4

Rev. D

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FEATURES

Offset voltage and offset voltage drift

B grade: 25 µV and 0.25 µV/°C at 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 T

Low voltage noise density: 6.9 nV/√Hz typical at f = 1000 Hz

CMRR, PSRR, and A

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.

PIN CONNECTION DIAGRAMS

Figure 1. ADA4077-1, 8-Lead SOIC (and 8-Lead MSOP)

Figure 2. ADA4077-2, 8-Lead MSOP (and 8-Lead SOIC)

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.

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

NC

1

–IN

2

+IN

3

V–

4

NC

8

V+

7

OUT

6

NC

5

NC = NO CONNECT. NOT INTERNALLY CONNECTED.

ADA4077-1

TOP VIEW

(Not to Scale)

V–

4

V+

8

OUT B

7

–IN B

6

+IN B

5

ADA4077-2

TOP VIEW

(Not to Scale)

ADA4077-4

1

2

3

4

5

6

7

–IN A

+IN A

V+

OUT B

–IN B

+IN B

OUT A

14

13

12

11

10

9

8

–IN D

+IN D

V–

OUT C

–IN C

+IN C

OUT D

TOP VIEW

(Not to Scale)

0

20

40

60

80

100

120

140

160

180

200

SOIC