30 V, Micropower, Overvoltage Protection,

Rail-to-Rail Input/Output Amplifier

Data Sheet

ADA4096-2

Rev. A

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FEATURES

Input overvoltage protection, 32 V above and below

the supply rails

Rail-to-rail input and output swing

Low power: 60 μA per amplifier typical

Unity-gain bandwidth

Single-supply operation: 3 V to 30 V

Low offset voltage: 300 μV maximum

High open-loop gain: 120 dB typical

Unity-gain stable

No phase reversal

Qualified for automotive applications

APPLICATIONS

Battery monitoring

Sensor conditioners

Portable power supply control

Portable instrumentation

PIN CONFIGURATIONS

OUTA

1

–INA

2

+INA

3

–V

4

+V

8

OUTB

7

–INB

6

+INB

5

ADA4096-2

TOP VIEW

(Not to Scale)

Figure 1. 8-Lead, MSOP (RM-8)

+V

OUTB

–INB

+INB

ADA4096-2

TOP VIEW

(Not to Scale)

3

+INA

4

–V

1

OUTA

2

–INA

6

5

8

7

NOTES

1. CONNECT THE EXPOSED

PAD TO GROUND.

Figure 2. 8-Lead LFCSP (CP-8-10)

GENERAL DESCRIPTION

The ADA4096-2 operational amplifier features micropower

operation and rail-to-rail input and output ranges. The

extremely low power requirements and guaranteed operation

from 3 V to 30 V make these amplifiers perfectly suited to

monitor battery usage and to control battery charging. Their

dynamic performance, including 27 nV/√Hz voltage noise

density, recommends them for battery-powered audio applica-

tions. Capacitive loads to 200 pF are handled without oscillation.

The ADA4096-2 has overvoltage protection inputs and diodes

that allow the voltage input to extend 32 V above and below

the supply rails, making this device ideal for robust industrial

applications.

The ADA4096-2 features a unique input stage that allows the

input voltage to exceed either supply safely without any phase

reversal or latch-up; this is called overvoltage protection, or OVP.

The dual ADA4096-2 is available in 8-lead LFCSP (2 mm × 2 mm)

and 8-lead MSOP packages. The ADA409x family is specified

over the extended industrial temperature range (−40°C to +125°C)

and is part of the growing selection of 30 V, low power op amps

from Analog Devices, Inc. (see Table 1).

Table 1. Low Power, 30 V Operational Amplifiers

Op Amp

Rail-to-Rail I/O

PJFET

Low Noise

Dual

ADA4091-2

AD8682

AD8622

Quad

ADA4091-4

AD8684

AD8624