30 V, Micropower, Overvoltage Protection, Rail-to-Rail Input/Output Dual Op Amplifier

The ADA4096-2 dual and ADA4096-4 quad operational amplifiers feature 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 applications. Capacitive loads to 200 pF are handled without oscillation.

The ADA4096-2 and ADA4096-4 have 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 and ADA4096-4 feature 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 ADA4096-2 is available in 16-lead LFCSP (3 mm × 3 mm) and 14-lead TSSOP packages. The ADA4096-2W is qualified for automotive applications and is available in an 8-lead MSOP package.

The ADA4096-2 family is specified over the extended industrial temperature range of (−40°C to +125°C) and is part of the growing selection of 30 V, low power op amps from Analog Devices, Inc.

Applications

* Battery monitoring

* Sensor conditioners

* Portable power supply controls

* Portable instrumentation

* Input overvoltage protection, 32 V above and below the supply rails

* No phase reversal for input voltage up to ±32 V beyond the power supply

* Rail-to-rail input and output swing

* Low power: 60 μA per amplifier typical

* Unity-gain bandwidth

* 800 kHz typical at VSY = ±15 V

* 550 kHz typical at VSY = ±5 V

* 465 kHz typical at VSY = ±1.5 V

* Single-supply operation: 3 V to 30 V

* Low offset voltage: 300 μV maximum

* Large signal voltage gain: 120 dB typical

* Unity gain stable

* Qualified for automotive applications