Overview
The OPA197IDBVT is a high-performance operational amplifier from Texas Instruments, part of the OPAx197 family. This device is known for its outstanding DC precision and AC performance, making it suitable for high-voltage, industrial applications. The OPA197IDBVT offers rail-to-rail input/output, low offset voltage, low offset drift, and a 10-MHz bandwidth. It is available in various packages, including SOIC, VSSOP, and SOT, and is specified to operate over a temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Test Conditions | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VS = ±2.25 V, VCM = (V+) – 3 V | ±5 | ±25 | ±100 | µV |
| Offset Voltage Drift (dVOS/dT) | ±0.25 | ±2.5 | µV/°C | ||
| Noise (e_n) | At 1 kHz | 5.5 | nV/√Hz | ||
| Common-Mode Rejection Ratio (CMRR) | 120 | dB | |||
| Bandwidth | 10 | MHz | |||
| Slew Rate | 20 | V/µs | |||
| Output Current | ±65 | mA | |||
| Capacitive Load Drive | Up to 1 nF |
Key Features
- Rail-to-rail input/output
- Low offset voltage (±25 µV, typical) and low offset drift (±0.25 µV/°C, typical)
- High common-mode rejection ratio (CMRR) of 120 dB (minimum)
- High slew rate of 20 V/µs
- High output current capability of ±65 mA
- High capacitive load drive of up to 1 nF
- Differential input-voltage range to the supply rail
- Operational temperature range of –40°C to +125°C
Applications
The OPA197IDBVT is designed for high-voltage, industrial applications. It is particularly suitable for:
- High-voltage data acquisition systems
- Industrial control systems
- Sensor signal conditioning
- Medical equipment
- Aerospace and defense applications
Q & A
- What is the typical input offset voltage of the OPA197IDBVT?
The typical input offset voltage is ±25 µV.
- What is the maximum offset voltage drift of the OPA197IDBVT?
The maximum offset voltage drift is ±2.5 µV/°C.
- What is the common-mode rejection ratio (CMRR) of the OPA197IDBVT?
The CMRR is a minimum of 120 dB.
- What is the slew rate of the OPA197IDBVT?
The slew rate is 20 V/µs.
- What is the maximum output current of the OPA197IDBVT?
The maximum output current is ±65 mA.
- What is the capacitive load drive capability of the OPA197IDBVT?
The device can drive capacitive loads up to 1 nF.
- What are the available packages for the OPA197IDBVT?
The device is available in SOIC, VSSOP, and SOT packages.
- What is the operational temperature range of the OPA197IDBVT?
The device operates over a temperature range of –40°C to +125°C.
- What are some typical applications of the OPA197IDBVT?
Typical applications include high-voltage data acquisition systems, industrial control systems, sensor signal conditioning, medical equipment, and aerospace and defense applications.
- What is the bandwidth of the OPA197IDBVT?
The bandwidth is 10 MHz.
