1.8 nV/√Hz, 36 V Precision Quad Amplifier

ADA4004-4

Rev. A

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FEATURES

Very low voltage noise: 1.8 nV/

√Hz

Low input bias current: 100 nA maximum

Offset voltage: 100 μV maximum

High gain: 120 dB

Wide bandwidth: 12 MHz

±5 V to ±15 V operation

APPLICATIONS

Precision instrumentation

Filter blocks

Microphone preamplifier

Industrial control

Thermocouples and RTDs

Reference buffers

GENERAL DESCRIPTION

The ADA4004-4 is a 1.8 nV/√Hz precision quad amplifier in a

16 mm2 LFCSP_VQ package featuring 40 μV offset, 0.7 μV/ºC

drift, 12 MHz bandwidth, and low 1.7 mA/amplifier supply

current.

The ADA4004-4 is designed on the high performance iPolar™

process, enabling improvements such as reduced noise and

power consumption, increased speed and stability, and a

smaller footprint size. Novel design techniques enable the

ADA4004-4 to achieve 1.8 nV/√Hz voltage noise density and

a low 6 Hz 1/f noise corner frequency while consuming just

1.7 mA/amplifier. The small package saves board space, reduces

cost, and improves layout flexibility.

Applications for these amplifiers include high precision controls,

PLL filters, high performance precision filters, medical and

analytical instrumentation, precision power supply controls,

ATE, and data acquisition systems.

The high performance ADA4004-4 is offered in the very small

16-lead, 4 mm × 4 mm LFCSP_VQ and the 14-lead, narrow

SOIC_N, lead-free, surface-mount packages. Operation is fully

specified from ±5 V to ±15 V from −40°C to +125°C.

PIN CONFIGURATIONS

NC = NO CONNECT

TOP VIEW

(Not to Scale)

ADA4004-4

–IN D

12

+IN D

11

VEE

10

+IN C

9

5

6

7

8

16

15

14

13

Figure 1. 16-Lead LFCSP_VQ

(CP-16-4 Suffix)

1

OUT A

OUT D

14

2

–IN A

–IN D

13

3

+IN A

+IN D

12

4

V+

V–

11

5

+IN B

+IN C

10

6

–IN B

–IN C

9

7

OUT B

OUT C

8

ADA4004-4

TOP VIEW

(Not to Scale)

Figure 2. 14-Lead SOIC_N

(R-14 Suffix)