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.