Overview
The OPA735AIDBVR is a high-precision, single-supply CMOS operational amplifier from Texas Instruments. This device is part of the OPA735 series, which utilizes auto-zeroing techniques to provide low offset voltage and near-zero drift over time and temperature. The OPA735AIDBVR is available in the SOT23-5 package and is designed for applications requiring high accuracy and low power consumption.
Key features include low offset voltage, zero drift, and a wide supply range from 2.7V to 12V, making it suitable for a variety of applications such as medical instrumentation, battery-powered instruments, and handheld test equipment.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage (VOS) | 1 | 5 | µV | |
| Offset Voltage Drift (dVOS/dT) | 0.01 | 0.05 | µV/°C | |
| Quiescent Current (IQ) | 0.6 | 0.75 | mA | |
| Input Bias Current (IB) | ±100 | ±200 | pA | |
| Common-Mode Voltage Range (VCM) | (V−) − 0.1V | (V+) − 1.5V | V | |
| Open-Loop Voltage Gain (AOL) | 115 | 130 | dB | |
| Gain-Bandwidth Product (GBW) | 1.6 | MHz | ||
| Slew Rate (SR) | 1.5 | V/µs | ||
| Operating Voltage Range (VS) | 2.7 | 12 | V | |
| Temperature Range | −40 | +85 | °C |
Key Features
- Low Offset Voltage: Maximum of 5µV, ensuring high accuracy in applications.
- Zero Drift: Near-zero drift over time and temperature, maintaining precision.
- Low Quiescent Current: Maximum of 0.75mA, suitable for battery-powered devices.
- Single-Supply Operation: Operates from 2.7V to 12V, providing flexibility in power supply design.
- Low Bias Current: Input bias current of ±200pA, reducing errors in high-impedance circuits.
- Shutdown Capability: Allows the amplifier to be disabled, reducing current to a maximum of 9µA in standby mode.
- MicroSIZE Packages: Available in SOT23-5 and SO-8 packages, suitable for compact designs.
- Rail-to-Rail Output Swing: Output voltage swing within 50mV of the supply rails.
Applications
- Medical Instrumentation: High precision and low noise make it ideal for medical devices.
- Battery-Powered Instruments: Low quiescent current and shutdown feature are beneficial for battery life.
- Transducer Applications: Suitable for transducer amplification due to its high accuracy and stability.
- Temperature Measurements: Used in temperature measurement circuits requiring high precision.
- Electronic Scales: High accuracy and stability are crucial for electronic scales.
- Handheld Test Equipment: Compact size and low power consumption make it suitable for handheld devices.
Q & A
- What is the maximum input offset voltage of the OPA735AIDBVR?
The maximum input offset voltage is 5µV.
- What is the typical quiescent current of the OPA735AIDBVR?
The typical quiescent current is 0.75mA.
- What is the operating temperature range of the OPA735AIDBVR?
The specified operating temperature range is from −40°C to +85°C.
- Does the OPA735AIDBVR support shutdown functionality?
Yes, it supports shutdown functionality, reducing current to a maximum of 9µA in standby mode.
- What is the gain-bandwidth product (GBW) of the OPA735AIDBVR?
The gain-bandwidth product is 1.6 MHz.
- What are the common package types available for the OPA735AIDBVR?
The device is available in SOT23-5 and SO-8 packages.
- What is the slew rate of the OPA735AIDBVR?
The slew rate is 1.5 V/µs.
- Can the OPA735AIDBVR operate on a single supply?
Yes, it can operate on a single supply from 2.7V to 12V.
- What is the input bias current of the OPA735AIDBVR?
The input bias current is ±200pA.
- What is the common-mode rejection ratio (CMRR) of the OPA735AIDBVR?
The CMRR is typically 130 dB.
