Overview
The OPA392DBVR, produced by Texas Instruments, is a precision operational amplifier that belongs to the OPAx392 family. This family is renowned for its ultra-low offset voltage, offset voltage drift, and input bias current, making it an excellent choice for high-precision analog applications. The OPA392DBVR features TI's proprietary e-trim™ operational amplifier technology, which eliminates the need for input chopping or auto-zero techniques, thereby ensuring stable and accurate performance over a wide range of operating conditions.
The device is available in several package options, including the SOT-23 package for the OPA392DBVR, offering compact and efficient integration into various designs. It is optimized for low noise, fast-settling transient response, and rail-to-rail input and output operation, making it suitable for applications requiring high precision and reliability.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage | - | 10 | - | μV |
| Input Bias Current | - | 10 | - | fA |
| Common-Mode Rejection Ratio (CMRR) | 75 | - | 120 | dB |
| Power Supply Rejection Ratio (PSRR) | 88 | - | 111 | dB |
| Open-Loop Gain | 100 | 128 | - | dB |
| Bandwidth | - | 13 | - | MHz |
| Noise Spectral Density | - | 4.4 | - | nV/√Hz |
| Quiescent Current per Amplifier | - | 1.4 | 1.5 | mA |
| Operating Supply Voltage Range | 1.7 | - | 5.5 | V |
| Package Type | - | SOT-23 | - | - |
Key Features
- Ultra-Low Offset Voltage and Drift: Achieved through TI's proprietary e-trim™ technology, ensuring stable performance over time and temperature.
- Low Input Bias Current: Typically 10 fA, ideal for sensor inputs and photodiode current-to-voltage measurements.
- Rail-to-Rail Input and Output Operation: Allows for low-voltage, single-supply operation or split-supply use.
- Low Noise and High Bandwidth: 4.4 nV/√Hz noise spectral density and 13 MHz bandwidth for high-precision applications.
- High CMRR and PSRR: Ensures robust performance against common-mode and power supply noise.
- Compact Packaging: Available in SOT-23 and other compact packages for efficient design integration.
- Wide Operating Supply Voltage Range: From 1.7 V to 5.5 V, making it versatile for various application requirements.
Applications
- High-Precision Analog-to-Digital Converters (ADCs) and Digital-to-Analog Converters (DACs): Ideal for driving and buffering high-resolution converters.
- Sensor Interfaces: Suitable for interfacing with sensors, photodiodes, and other high-precision analog devices.
- Medical Instrumentation: Used in medical devices requiring high accuracy and low noise, such as pulse oximeters.
- Optical Modules: Employed in optical power monitoring and precision current shunt monitoring applications.
- Data Acquisition Systems: Utilized in data acquisition (DAQ) systems for precise analog signal processing.
- Current Sensing and Monitoring: Applied in bidirectional current-sensing designs for accurate load current detection.
Q & A
- What is the typical input offset voltage of the OPA392DBVR?
The typical input offset voltage is 10 μV.
- What is the input bias current of the OPA392DBVR?
The typical input bias current is 10 fA.
- What is the bandwidth of the OPA392DBVR?
The bandwidth is 13 MHz.
- What is the noise spectral density of the OPA392DBVR?
The noise spectral density is 4.4 nV/√Hz.
- What are the common package types for the OPA392DBVR?
The OPA392DBVR is available in the SOT-23 package among others.
- What is the operating supply voltage range for the OPA392DBVR?
The operating supply voltage range is from 1.7 V to 5.5 V.
- What are some typical applications of the OPA392DBVR?
Typical applications include high-precision ADCs and DACs, sensor interfaces, medical instrumentation, optical modules, and data acquisition systems.
- Does the OPA392DBVR support rail-to-rail input and output operation?
Yes, the OPA392DBVR supports rail-to-rail input and output operation.
- What is the quiescent current per amplifier for the OPA392DBVR?
The quiescent current per amplifier is typically 1.4 mA.
- Is the OPA392DBVR suitable for low-voltage single-supply operation?
Yes, the OPA392DBVR is suitable for low-voltage single-supply operation.
