Overview
The OPA197IDBVR, produced by Texas Instruments, is a high-performance operational amplifier (op-amp) that belongs to the OPAx197 family. This single-channel op-amp is renowned for its precision and robust performance, making it ideal for high-voltage industrial applications. It features rail-to-rail input and output, low offset voltage, and high slew rate, ensuring excellent dc and ac performance. The device is available in various packages, including SOIC, SOT, and VSSOP, and is specified to operate over a wide temperature range from –40°C to +125°C.
Key Specifications
| Parameter | Test Conditions | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VS = ±18 V, VCM = (V+) – 1.5 V | ±25 | ±100 | µV | |
| Input Offset Voltage Drift (dVOS/dT) | VS = ±18 V, VCM = (V+) – 3 V, TA = –40°C to +125°C | ±0.5 | ±2.5 | µV/°C | |
| Unity Gain Bandwidth (GBW) | VS = ±18 V, G = 1 | 10 | MHz | ||
| Slew Rate (SR) | VS = ±18 V, G = 1, 10-V step | 20 | V/µs | ||
| Input Bias Current (IB) | TA = –40°C to +125°C | ±5 | ±20 | pA | |
| Output Voltage Swing (VO) | No load, Positive rail | 5 | 25 | mV | |
| Short-Circuit Current (ISC) | VS = ±2.25 V | ±65 | mA | ||
| Capacitive Load Drive (CLOAD) | Up to 1 nF | ||||
| Quiescent Current per Amplifier (IQ) | IO = 0 A, TA = –40°C to +125°C | 1 | 1.3 | mA |
Key Features
- Low Offset Voltage: ±100 µV (maximum) and low offset voltage drift of ±2.5 µV/°C (maximum).
- Rail-to-Rail Input/Output: Allows the input and output to operate near the supply rails, enhancing the device's versatility in various applications.
- High Slew Rate: 20 V/µs, ensuring fast response times and high ac performance.
- High Output Current and Capacitive Load Drive: Capable of driving high current loads up to ±65 mA and capacitive loads up to 1 nF.
- Wide Supply Voltage Range: Operates from ±2.25 V to ±18 V (single supply of 4.5 V to 36 V).
- Low Noise: 5.5 nV/√Hz at 1 kHz, contributing to high signal integrity.
Applications
- Industrial Automation: Suitable for high-voltage industrial applications, including control systems and sensor interfaces.
- Medical Devices: Can be used in medical equipment requiring high precision and reliability, such as ECG and EEG machines.
- Aerospace and Defense: Applicable in systems requiring robust and high-performance operational amplifiers.
- Test and Measurement Equipment: Ideal for use in precision measurement instruments due to its low offset voltage and high slew rate).
Q & A
- What is the typical input offset voltage of the OPA197IDBVR?
The typical input offset voltage is ±25 µV.
- What is the maximum slew rate of the OPA197IDBVR?
The maximum slew rate is 20 V/µs.
- What is the unity gain bandwidth of the OPA197IDBVR?
The unity gain bandwidth is 10 MHz.
- What is the maximum output current of the OPA197IDBVR?
The maximum output current is ±65 mA.
- What is the operating temperature range of the OPA197IDBVR?
The operating temperature range is from –40°C to +125°C.
- What are the available packages for the OPA197IDBVR?
The device is available in SOIC, SOT, and VSSOP packages.
- What is the typical quiescent current per amplifier for the OPA197IDBVR?
The typical quiescent current per amplifier is 1.3 mA.
- Can the OPA197IDBVR drive high capacitive loads?
Yes, it can drive capacitive loads up to 1 nF.
- What is the input bias current of the OPA197IDBVR?
The input bias current is typically ±5 pA.
- Is the OPA197IDBVR suitable for high-voltage applications?
Yes, it operates from a supply voltage range of ±2.25 V to ±18 V (single supply of 4.5 V to 36 V).
