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.