OPA4392中文资料Quad, low-offset (10 μV), low-noise (6 nV/rtHz) femtoampere-bias-current e-trim™ op amp数据手册TI规格书

描述 Description

The OPAx392 family of operational amplifiers (OPA392, OPA2392, and OPA4392) features ultra-low offset, offset drift, and input bias current with rail-to-rail input and output operation. In addition to precision dc accuracy, the ac performance is optimized for low noise and fast-settling transient response. These features make the OPAx392 an excellent choice for driving high-precision analog-to-digital converters (ADCs) or buffering the output of high-resolution, digital-to-analog converters (DACs).

The OPAx392 feature TI’s e-trim™ operational amplifier technology to achieve ultra-low offset voltage and offset voltage drift without any input chopping or auto-zero techniques. This technique enables ultra-low input bias current for sensor inputs or photodiode current-to-voltage measurements, creating high-performance transimpedance stages for optical modules or medical instrumentation.

特性 Features

Low offset voltage: ±10µV (maximum)

Low-drift: ±0.18µV/°C

Low input bias current: 10fA

Low noise: 4.4nV/√Hz at 10kHz

Low 1/f noise: 2µVPP (0.1Hz to 10Hz)

Low supply voltage operation: 1.7V to 5.5V

Low quiescent current: 1.22mA

Fast settling: 0.75µs (1V to 0.1%)

Fast slew rate: 4.5V/µs

High output current: +65mA/–55mA short circuit

Gain bandwidth: 13MHz

Rail-to-rail input and output

Specified temperature range: –40°C to +125°C

EMI and RFI filtered inputs