Overview
The OPA2192ID, produced by Texas Instruments, is part of the OPAx192 family of operational amplifiers. This family includes the OPA192, OPA2192, and OPA4192, which are known for their high precision and robust performance. These amplifiers offer outstanding DC and AC characteristics, making them suitable for high-voltage industrial applications. They feature rail-to-rail input and output, low offset voltage, and high common-mode rejection, among other key attributes.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Input Offset Voltage | ±5 µV | µV |
| Input Offset Voltage Drift | ±0.2 µV/°C | µV/°C |
| Noise | 5.5 nV/√Hz at 1 kHz | nV/√Hz |
| Common-Mode Rejection Ratio (CMRR) | 140 dB | dB |
| Input Bias Current | ±5 pA | pA |
| Bandwidth (GBW) | 10 MHz | MHz |
| Slew Rate | 20 V/µs | V/µs |
| Quiescent Current | 1 mA per Amplifier | mA |
| Supply Voltage Range | ±2.25 V to ±18 V, +4.5 V to +36 V | V |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Options | SOIC-8, SOT-23-5, VSSOP-8 |
Key Features
- Rail-to-Rail Input and Output: Allows the amplifier to operate with input and output voltages that range from the negative to the positive supply rail.
- Low Offset Voltage and Drift: Typical offset voltage of ±5 µV and drift of ±0.2 µV/°C, ensuring high precision over temperature variations.
- Low Noise: 5.5 nV/√Hz at 1 kHz, suitable for applications requiring low noise levels.
- High Common-Mode Rejection Ratio (CMRR): 140 dB, providing excellent rejection of common-mode signals.
- Low Input Bias Current: ±5 pA, minimizing the impact on the input signal.
- High Bandwidth and Slew Rate: 10 MHz bandwidth and 20 V/µs slew rate, enabling fast and accurate signal processing.
- Low Quiescent Current: 1 mA per amplifier, contributing to low power consumption.
- Wide Supply Voltage Range: Operates from ±2.25 V to ±18 V and +4.5 V to +36 V, making it versatile for various power supply configurations.
- EMI/RFI Filtered Inputs: Reduces the impact of electromagnetic interference and radio-frequency interference.
- High Capacitive Load Drive Capability: Can drive loads up to 1 nF, suitable for applications with high capacitive loads.
Applications
- Multiplexed Data-Acquisition Systems: Ideal for systems that require high precision and fast switching between multiple input channels.
- Test and Measurement Equipment: Suitable for precision measurement instruments due to its low noise and high accuracy.
- High-Resolution ADC Driver Amplifiers: Used to drive analog-to-digital converters (ADCs) in high-resolution applications.
- SAR ADC Reference Buffers: Provides a stable reference voltage for successive approximation register (SAR) ADCs.
- Programmable Logic Controllers (PLCs): Used in PLCs for industrial control systems requiring high precision and reliability.
- High-Side and Low-Side Current Sensing: Suitable for current sensing applications in power management and monitoring systems.
- High Precision Comparator: Can be used as a comparator in high-precision applications due to its low offset voltage and high CMRR.
Q & A
- What is the typical input offset voltage of the OPA2192ID?
The typical input offset voltage is ±5 µV.
- What is the input offset voltage drift of the OPA2192ID?
The input offset voltage drift is typically ±0.2 µV/°C.
- What is the noise level of the OPA2192ID at 1 kHz?
The noise level is 5.5 nV/√Hz at 1 kHz.
- What is the common-mode rejection ratio (CMRR) of the OPA2192ID?
The CMRR is 140 dB.
- What is the input bias current of the OPA2192ID?
The input bias current is typically ±5 pA.
- What is the bandwidth and slew rate of the OPA2192ID?
The bandwidth is 10 MHz, and the slew rate is 20 V/µs.
- What is the quiescent current of the OPA2192ID?
The quiescent current is 1 mA per amplifier.
- What is the operating temperature range of the OPA2192ID?
The operating temperature range is –40°C to +125°C.
- What are the package options available for the OPA2192ID?
The package options include SOIC-8, SOT-23-5, and VSSOP-8.
- What are some typical applications of the OPA2192ID?
Typical applications include multiplexed data-acquisition systems, test and measurement equipment, high-resolution ADC driver amplifiers, and programmable logic controllers (PLCs).
