Overview
The Texas Instruments OPA820IDR is a high-performance, unity-gain stable, voltage-feedback operational amplifier. This device is designed to offer a wideband operation with low input noise and high output current, making it suitable for a variety of high-speed analog applications. The OPA820IDR operates on a flexible supply voltage range, from dual ±2.5 V to ±6 V and single 5 V to 12 V, and features a low supply current of 5.6 mA. It is packaged in an 8-pin SOIC (D) package and is rated for operation over a temperature range of -40°C to 85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Bandwidth (G = 2) | 240 MHz | |
| Bandwidth (Acl) | 800 MHz | |
| Slew Rate | 240 V/μs | |
| Input Noise Voltage | 2.5 nV/√Hz | |
| Input Offset Voltage (Max @ 25°C) | ±750 µV | |
| Input Offset Current (Max @ 25°C) | ±400 nA | |
| Output Current (Typ) | ±110 mA | |
| Supply Current (Typ) | 5.6 mA | |
| Supply Voltage Range | Dual ±2.5 V to ±6 V, Single 5 V to 12 V | |
| Operating Temperature Range | -40°C to 85°C | |
| Package Type | SOIC-8 |
Key Features
- High Bandwidth: 240 MHz at G = 2 and 800 MHz at Acl.
- High-Output Current: ±110 mA, suitable for driving heavy loads.
- Low-Input Noise: 2.5 nV/√Hz, ideal for high-precision applications.
- Low-Supply Current: 5.6 mA, making it power-efficient.
- Flexible Supply Voltage: Dual ±2.5 V to ±6 V and single 5 V to 12 V.
- Excellent DC Accuracy: Maximum input offset voltage of ±750 µV and offset current of ±400 nA at 25°C.
- Minimal Input and Output Voltage-Swing Headroom: Supports more than 2-V PP output swing on a single 5-V supply.
- Low Thermal Impedance: Ensures solid performance over a wide temperature range.
Applications
- Analog-to-Digital Converter (ADC) Input Stages: Due to its low noise and high output current, it supports most emerging ADC input ranges.
- Composite-Video Line Drivers: Exceptionally low dG/dP (0.01% or 0.03°) makes it suitable for low-cost composite-video line-driver applications.
- Pulse Amplifier Applications: Excellent absolute DC precision and high-speed operation make it ideal for pulse amplifier applications.
- High-Density Portable Applications: Available in both 8-pin SOIC and 5-pin SOT-23 packages, suitable for high-density portable applications.
Q & A
- What is the bandwidth of the OPA820IDR at a gain of 2? The bandwidth at a gain of 2 is 240 MHz.
- What is the typical slew rate of the OPA820IDR? The typical slew rate is 240 V/μs.
- What is the input noise voltage of the OPA820IDR? The input noise voltage is 2.5 nV/√Hz.
- What is the maximum input offset voltage at 25°C? The maximum input offset voltage at 25°C is ±750 µV.
- What is the typical output current of the OPA820IDR? The typical output current is ±110 mA.
- What is the supply current of the OPA820IDR? The typical supply current is 5.6 mA.
- What is the operating temperature range of the OPA820IDR? The operating temperature range is -40°C to 85°C.
- In what package types is the OPA820IDR available? It is available in 8-pin SOIC and 5-pin SOT-23 packages.
- Is the OPA820IDR rail-to-rail? No, the OPA820IDR is not a rail-to-rail output op amp.
- What are some typical applications of the OPA820IDR? Typical applications include ADC input stages, composite-video line drivers, pulse amplifier applications, and high-density portable applications.
