OPA2392DR

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.

Applications

• Multiparameter patient monitor
• Electrocardiogram (ECG)
• Chemistry and gas analyzer
• Optical module
• Analog input module
• Process analytics (pH, gas, concentration, force and humidity)
• Gas detector
• Analog security camera
• Merchant DC/DC
• Pulse oximeter
• Inter-DC interconnect (long-haul, submarine)
• Data acquisition (DAQ)

Key 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 (↑ or 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