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

• Onboard and wireless chargers

• HVAC compressors

• Photodiode TIA interface

• Head-up display (HUD)

3 Description

The OPA2863-Q1 is a low-power, unity-gain

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

operational amplifier designed to operate over a

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

only 700 μA per channel, the OPA2863-Q1 offers

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 OPA2863-Q1 an

excellent choice for general-purpose applications like

current sensing and photodiode interface. The rail-torail

input stage is well-matched for gain-bandwidth

product and noise across the full input common‑mode

voltage range, enabling excellent performance with

wide-input dynamic range.

The OPA2863-Q1 includes overload power limiting to

limit the increase in IQ with saturated outputs, thereby

preventing excessive power dissipation in powerconscious,

battery-operated systems. The output

stage is short-circuit protected, making these devices

conducive to ruggedized environments.