Ultralow Noise Amplifier at Lower Power

Data Sheet

ADA4075-2

Rev. C

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FEATURES

Ultralow noise: 2.8 nV/√Hz at 1 kHz typical

Ultralow distortion: 0.0002% typical

Low supply current: 1.8 mA per amplifier typical

Offset voltage: 1 mV maximum

Bandwidth: 6.5 MHz typical

Slew rate: 12 V/μs typical

Dual-supply operation: ±4.5 V to ±18 V

Unity-gain stable

Extended industrial temperature range

8-lead SOIC and 2 mm × 2 mm LFCSP packages

APPLICATIONS

Precision instrumentation

Professional audio

Active filters

Low noise amplifier front end

Integrators

PIN CONFIGURATIONS

OUTA

1

–INA

2

+INA

3

V–

4

V+

8

OUTB

7

–INB

6

+INB

5

ADA4075-2

TOP VIEW

(Not to Scale)

Figure 1. 8-Lead SOIC

TOP VIEW

(Not to Scale)

ADA4075-2

3

+INA

4

V–

1

OUTA

2

–INA

6–INB

5+INB

8V+

7OUTB

Figure 2. 8-Lead, 2 mm × 2 mm LFCSP

GENERAL DESCRIPTION

The ADA4075-2 is a dual, high performance, low noise operational

amplifier combining excellent dc and ac characteristics on the

Analog Devices, Inc., iPolar® process. The iPolar process is an

advanced bipolar technology implementing vertical junction

isolation with lateral trench isolation. This allows for low noise

performance amplifiers in smaller die size at faster speed and

lower power. Its high slew rate, low distortion, and ultralow

noise make the ADA4075-2 ideal for high fidelity audio and

high performance instrumentation applications. It is also

especially useful for lower power demands, small enclosures,

and high density applications. The ADA4075-2 is specified for

the −40°C to +125°C temperature range and is available in a

standard SOIC package and a 2 mm × 2 mm LFCSP package.

Table 1. Low Noise Precision Op Amps

Supply

44 V

36 V

12 V to 16 V

5 V

Single

OP27

AD8671

AD8665

AD8605

AD8675

OP162

AD8655

AD8597

AD8691

ADA4004-1

AD797

Dual

OP275

AD8672

AD8666

AD8606

AD8676

OP262

AD8656

AD8599

AD8692

ADA4004-2

Quad

AD8674

AD8668

AD8608

ADA4004-4

OP462

AD8694