Overview
The OPA191IDBVT is a precision operational amplifier from Texas Instruments, part of the OPAx191 family. This device is known for its high performance and precision, making it suitable for a wide range of high-voltage industrial applications. The OPA191IDBVT features Texas Instruments' proprietary e-trim technology, which ensures outstanding DC precision and AC performance. It offers rail-to-rail input and output, low offset voltage, and high slew rate, making it a robust choice for various industrial and instrumentation needs.
Key Specifications
| Parameter | Typical | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Total Supply Voltage | 4.5 to 36 | 4.5 | 36 | V |
| Input Offset Voltage (VOS) | ±5 µV | ±10 µV | ±125 µV | µV |
| Input Offset Voltage Drift (dVOS/dT) | ±0.15 µV/°C | ±0.1 µV/°C | ±1.2 µV/°C | µV/°C |
| Unity Gain Bandwidth (GBW) | 2.5 MHz | - | - | MHz |
| Slew Rate | 5.5 V/µs | - | - | V/µs |
| Output Current | ±65 mA | - | - | mA |
| Common Mode Rejection Ratio (CMRR) | 140 dB | 120 dB | - | dB |
| Operating Temperature Range | -40°C to +125°C | -40°C | +125°C | °C |
| Package Type | SOT-23 | - | - | - |
Key Features
- Rail-to-Rail Input and Output: The OPA191IDBVT offers rail-to-rail input and output, allowing for maximum signal range and flexibility.
- Low Offset Voltage and Drift: With a typical input offset voltage of ±5 µV and a drift of ±0.15 µV/°C, this amplifier ensures high precision over a wide temperature range.
- High Slew Rate and Bandwidth: The device features a slew rate of 5.5 V/µs and a unity gain bandwidth of 2.5 MHz, making it suitable for high-speed applications.
- High Output Current and Capacitive Load Drive: The OPA191IDBVT can drive high capacitive loads up to 1 nF and deliver an output current of ±65 mA.
- EMI Hardened: The amplifier is designed to be EMI hardened, enhancing its reliability in noisy environments.
- Low Power Consumption: With a typical quiescent current of 0.14 mA per channel, this amplifier is energy-efficient.
Applications
- Data Acquisition (DAQ): Suitable for high-precision data acquisition systems due to its low offset voltage and high accuracy.
- Source Measurement Units (SMU): Ideal for source measurement units requiring high precision and stability.
- Pressure Transmitters: Used in pressure transmitters for accurate and reliable signal processing.
- Train Control and Management Systems: Applied in train control systems where high reliability and precision are critical.
- Lab and Field Instrumentation: Utilized in various laboratory and field instrumentation applications requiring high performance and accuracy.
Q & A
- What is the typical input offset voltage of the OPA191IDBVT?
The typical input offset voltage is ±5 µV.
- What is the operating temperature range of the OPA191IDBVT?
The operating temperature range is -40°C to +125°C.
- What is the unity gain bandwidth of the OPA191IDBVT?
The unity gain bandwidth is 2.5 MHz.
- What is the maximum output current of the OPA191IDBVT?
The maximum output current is ±65 mA.
- What type of package is the OPA191IDBVT available in?
The OPA191IDBVT is available in a SOT-23 package.
- Is the OPA191IDBVT EMI hardened?
Yes, the OPA191IDBVT is EMI hardened.
- What is the typical slew rate of the OPA191IDBVT?
The typical slew rate is 5.5 V/µs.
- What are some common applications of the OPA191IDBVT?
Common applications include data acquisition, source measurement units, pressure transmitters, train control systems, and lab and field instrumentation.
- What is the common mode rejection ratio (CMRR) of the OPA191IDBVT?
The typical CMRR is 140 dB.
- Is the OPA191IDBVT RoHS compliant?
Yes, the OPA191IDBVT is RoHS compliant.
