1 Features
• AEC-Q100 qualified for automotive applications:
– Temperature: –40°C to +125°C, TA
• Gain-bandwidth product: 70MHz
• Small-signal bandwidth: 140MHz
• Slew rate: 200V/μs
• Wide supply range: 4.75V to 27V
• Low noise:
– Input voltage noise: 6.3nV/√Hz (f = 500kHz)
– Input current noise: 5fA/√Hz (f = 10kHz)
• Rail-to-rail input and output:
– FET input stage: 2pA input bias current (typical)
– High linear output current: 75mA
• Input offset: ±550μV (maximum)
• Offset drift: ±2.5μV/°C (typical)
• Low power: 3.7mA/channel

2 Applications
• Multichannel sensor interfaces
• Optoelectronic drivers
• Low-side current sensing
• DC/DC converters
• Inverter and motor control
• Onboard and wireless chargers
• HAVC compressors
• Photodiode TIA interface
• Head-up display (HUD)
• Automotive display

3 Description
The OPA810-Q1 is a single-channel, field-effect
transistor (FET) input, voltage-feedback operational
amplifier (op amp) with bias current in the picoampere
(pA) range. The OPA810-Q1 is unity-gain stable
with a small-signal, unity-gain bandwidth of 140MHz,
and offers excellent dc precision and dynamic ac
performance at a low quiescent current (IQ) of 3.7mA
per channel. The OPA810-Q1 is fabricated on Texas
Instruments' proprietary, high-speed SiGe BiCMOS
process and achieves significant performance
improvements over comparable FET-input amplifiers
at similar levels of quiescent power. With a gainbandwidth
product (GBWP) of 70MHz, slew rate of
200V/μs, and low-noise voltage of 6.3nV/√Hz, the
OPA810-Q1 is designed for use in a wide range
of high-fidelity data-acquisition and signal-processing
applications.
The OPA810-Q1 features rail-to-rail inputs and
outputs, and delivers 75mA of linear output current
designed to drive optoelectronic components and
analog-to-digital converter (ADC) inputs or buffer
digital-to-analog converter (DAC) outputs into heavy
loads.
The OPA810-Q1 is specified over the extended
industrial temperature range of –40°C to +125°C. The
OPA810-Q1 is available in SOT-23 package.