Texas Instruments OPAx383 Zero-Drift Operational Amplifiers
Texas Instruments OPAx383 Zero-Drift Operational Amplifiers (Op Amps) are a family of precision amplifiers that offer state-of-the-art performance. With zero-drift technology, the OPAx383 offset voltage and offset drift provide unparalleled long-term stability. With an ultra-low 65µA of quiescent current, the OPAx383 can achieve 2.5MHz bandwidth, a broadband noise of 32nV/√Hz, and a 1/f noise at 650nVPP. These specifications are crucial to attain high precision and no linearity degradation in 16-bit to 24-bit analog to digital converters (ADCs). The Texas Instruments OPAx383 features a flat bias current over temperature, so little to no calibration is needed in high input impedance applications over temperature. All versions are specified over the industrial temperature range of –40°C to +125°C.Features
- Ultra-low offset voltage of ±5µV (max.)
- ±0.025µV/°C zero drift
- A low-input bias current of 50pA (max.)
- 32nV√Hz at 1kHz low noise
- No 1/f noise of 650nVPP (0.1Hz to 10Hz)
- Common-mode input range ±100mV beyond supply rails
- 2.5MHz gain bandwidth
- Quiescent current of 65µA per amplifier
- 1.7V to 5.5V single supply
- ±0.85V to ±2.75V dual supply
- EMI and RFI filtered inputs
Applications
- Electronic thermometer
- Weigh scale
- Temperature transmitter
- Ventilators
- Data acquisition (DAQ)
- Semiconductor test
- Lab and field instrumentation
- Merchant network and server PSU
- Analog input module
- Pressure transmitter
Functional Block Diagram
發佈日期: 2025-02-04
| 更新日期: 2025-08-22
