OPA397 Single Low offset, Low Noise RRIO e-trim™ Op-Amp
Texas Instruments' cost-optimized op-amp is suitable for upstream analog signal chain and downstream signal chain applications
Texas Instruments' OPA397 op-amp features ultra-low offset, offset drift, and input bias current with rail-to-rail input and output operation. This op-amp offers precision DC accuracy and the AC performance is optimized for low noise and fast-settling transient response. These features make the OPA397 ideal for driving high-precision analog-to-digital converters (ADCs) or buffering the output of high-resolution, digital-to-analog converters (DACs).
The OPA397 features TI's e-trim op-amp technology to achieve ultra-low offset voltage and offset voltage drift without 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.
- Low offset voltage: ±60 µV (max.)
- Low drift: ±0.18 µV/°C
- Low input bias current: 10 fA
- Low noise: 4.4 nV√Hz at 10 kHz
- Low 1/f noise: 2 µVPP (0.1 Hz to 10 Hz)
- Low supply voltage operation: 1.7 V to 5.5 V
- Low quiescent current: 1.22 mA
- Fast settling: 0.75 µs (1 V to 0.1%)
- Fast slew rate: 4.5 V/µs
- High output current: +65/-55 mA short-circuit
- Gain bandwidth: 13 MHz
- Rail-to-rail input and output
- Temperature range: -40°C to +125°C
- EMI/RFI filtered inputs
- Multiparameter patient monitors
- Electrocardiograms (ECG)
- Chemistry/gas analyzers
- Optical modules
- Analog input modules
- Process analytics: pH, gas, concentration, force, and humidity
- Gas detectors
- Analog security cameras
- Merchant DC/DC
- Pulse oximeters
- Inter-DC interconnects: long-haul and submarine
- Data acquisition (DAQ)
OPA397 Single Low offset, Low Noise RRIO e-trim™ Op-Amp
Image | Manufacturer Part Number | Description | Number of Circuits | Output Type | Slew Rate | Available Quantity | Price | View Details | |
---|---|---|---|---|---|---|---|---|---|
![]() | ![]() | OPA397DBVR | IC OPAMP GP 1 CIRCUIT SOT23-5 | 1 | Rail-to-Rail | 4.5V/µs | 2613 - Immediate | $14.74 | View Details |