1 Features

? AEC-Q100 Qualified for Automotive Applications

– Temperature grade 1: –40°C to +125°C, TA

? Wide-bandwidth

– Unity-gain bandwidth: 110-MHz

– Gain-bandwidth product: 50-MHz

? Low power

– Quiescent current: 700-μA/ch (typical)

– Supply voltage: 2.7-V to 12.6-V

? Input voltage noise: 5.9-nV/√Hz

? Slew rate: 105-V/μs

? Rail-to-rail input and output

? HD2/HD3: –129 dBc/–138 dBc at 20 kHz (2-VPP)

? Additional features:

– Overload power limit

– Output short-circuit protection

2 Applications

? Low-side current sensing

? DC/DC converters

? Inverter and motor control

? On-board and wireless chargers

? HVAC Compressors

? Photodiode TIA interface

? Heads up Display

3 Description

The OPAx863-Q1 devices are low-power, unity-gain

stable, rail-to-rail input and output, voltage-feedback

operational amplifiers designed to operate over a

power supply range of 2.7-V to 12.6-V. Consuming

only 700-μA per channel, the OPAx863-Q1 devices

offer a gain-bandwidth product of 50-MHz, slew rate

of 105-V/μs with a voltage noise density of 5.9-nV/

√Hz.

The rail-to-rail input stage makes OPAx863-Q1

suitable for general purpose applications like current

sensing and photodiode interface. The rail-to-rail input

stage is well matched for gain-bandwidth product and

noise across the full input common-mode voltage

range, enabling superior performance with wide-input

dynamic range.

The OPAx863-Q1 devices include overload power

limiting to limit the increase in IQ with saturated

outputs, thereby preventing excessive power

dissipation in power conscious systems. The output

stage is short-circuit protected, making it conducive to

ruggedized environments.