Overview
The OPA192IDR from Texas Instruments is a high-voltage, precision operational amplifier that belongs to the OPAx192 family. This device is manufactured using TI's e-trim technology, ensuring low input offset voltage and drift. It offers outstanding DC precision and AC performance, making it suitable for high-voltage industrial applications. The OPA192 features rail-to-rail input and output, low noise, high common-mode rejection, and a wide bandwidth of 10 MHz.
Key Specifications
| Parameter | Typical | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Input Offset Voltage | ±5 | ±10 | ±75 | µV |
| Input Offset Voltage Drift | ±0.2 | ±0.1 | ±1.0 | µV/°C |
| Noise | 5.5 | nV/√Hz at 1 kHz | ||
| Common-Mode Rejection Ratio (CMRR) | 140 | 114 | 126 | dB |
| Input Bias Current | ±5 | ±2 | ±20 | pA |
| Supply Voltage Range | ±2.25 V to ±18 V, 4.5 V to 36 V | V | ||
| Unity Gain Bandwidth (GBW) | 10 | MHz | ||
| Slew Rate | 20 | V/µs | ||
| Quiescent Current per Amplifier | 1 | mA | ||
| Operating Temperature Range | –40°C to +125°C | °C |
Key Features
- Rail-to-rail input and output
- Low input offset voltage (±5 µV typical)
- Low input offset voltage drift (±0.2 µV/°C typical)
- Low noise (5.5 nV/√Hz at 1 kHz)
- High common-mode rejection ratio (140 dB typical)
- Low input bias current (±5 pA typical)
- Wide supply voltage range (±2.25 V to ±18 V, 4.5 V to 36 V)
- High unity gain bandwidth (10 MHz)
- High slew rate (20 V/µs)
- Low quiescent current (1 mA per amplifier)
- High capacitive load drive capability (up to 1 nF)
- EMI/RFI filtered inputs
- Differential input-voltage range to the supply rail
Applications
- Multiplexed data-acquisition systems
- Test and measurement equipment
- High-resolution ADC driver amplifiers
- SAR ADC reference buffers
- Programmable logic controllers
- High-side and low-side current sensing
- High precision comparators
Q & A
- What is the typical input offset voltage of the OPA192?
The typical input offset voltage of the OPA192 is ±5 µV.
- What is the input offset voltage drift of the OPA192?
The input offset voltage drift of the OPA192 is ±0.2 µV/°C.
- What is the common-mode rejection ratio (CMRR) of the OPA192?
The CMRR of the OPA192 is 140 dB typical.
- What is the unity gain bandwidth of the OPA192?
The unity gain bandwidth of the OPA192 is 10 MHz.
- What is the slew rate of the OPA192?
The slew rate of the OPA192 is 20 V/µs.
- What is the quiescent current per amplifier of the OPA192?
The quiescent current per amplifier of the OPA192 is 1 mA.
- What is the operating temperature range of the OPA192?
The operating temperature range of the OPA192 is –40°C to +125°C.
- What are some common applications of the OPA192?
The OPA192 is commonly used in multiplexed data-acquisition systems, test and measurement equipment, high-resolution ADC driver amplifiers, SAR ADC reference buffers, programmable logic controllers, high-side and low-side current sensing, and high precision comparators.
- What packages are available for the OPA192?
The OPA192 is available in SOIC-8, SOT-23-5, and VSSOP-8 packages.
- Does the OPA192 have EMI/RFI filtered inputs?
