Overview
The OPA691IDBVTG4, produced by Texas Instruments, is a high-performance, wideband current feedback operational amplifier. This component is designed to offer exceptional performance with a very low supply current of 5.1mA. It features a new output stage architecture that delivers high output current with minimal voltage headroom and crossover distortion, making it ideal for single-supply operations. The OPA691IDBVTG4 can operate on a flexible supply range from +5V to +12V single-supply or ±2.5V to ±6V dual-supply, and it is unity-gain stable with a bandwidth of up to 280MHz. This amplifier is particularly suited for applications requiring high slew rates, low noise, and high output current capabilities.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Supply Current | 5.1mA | mA |
| Supply Voltage Range | +5V to +12V (single-supply), ±2.5V to ±6V (dual-supply) | V |
| Bandwidth (G = +2) | 190MHz | MHz |
| Slew Rate | 2100V/µs | V/µs |
| Output Current | 190mA | mA |
| Output Voltage Swing | ±4.0V | V |
| Disabled Current | 150µA | µA |
| Operating Temperature Range | –40°C to +85°C | °C |
| Package Type | SOT-23-6 |
Key Features
- Flexible supply range: +5V to +12V single-supply, ±2.5V to ±6V dual-supply
- Unity-gain stable with a bandwidth of up to 280MHz
- High output current: 190mA
- High slew rate: 2100V/µs
- Low supply current: 5.1mA
- Low disabled current: 150µA
- Optional disable control pin for power savings
- Low differential gain and phase error (dG/dφ): 0.07%/0.02°
Applications
- xDSL line drivers
- Broadband video buffers
- High-speed imaging channels
- Portable instruments
- ADC buffers
- Active filters
- Wideband inverting summing
- High SFDR IF amplifier
Q & A
- What is the supply current of the OPA691IDBVTG4?
The supply current of the OPA691IDBVTG4 is 5.1mA.
- What is the bandwidth of the OPA691IDBVTG4 at a gain of +2?
The bandwidth of the OPA691IDBVTG4 at a gain of +2 is 190MHz.
- What is the slew rate of the OPA691IDBVTG4?
The slew rate of the OPA691IDBVTG4 is 2100V/µs.
- What is the output current capability of the OPA691IDBVTG4?
The output current capability of the OPA691IDBVTG4 is up to 190mA.
- What is the operating temperature range of the OPA691IDBVTG4?
The operating temperature range of the OPA691IDBVTG4 is –40°C to +85°C.
- What package type is the OPA691IDBVTG4 available in?
The OPA691IDBVTG4 is available in a SOT-23-6 package.
- Does the OPA691IDBVTG4 have a disable feature?
Yes, the OPA691IDBVTG4 has an optional disable control pin that reduces the supply current to less than 150µA when pulled LOW.
- What are some typical applications of the OPA691IDBVTG4?
Typical applications include xDSL line drivers, broadband video buffers, high-speed imaging channels, portable instruments, ADC buffers, active filters, and high SFDR IF amplifiers.
- What is the differential gain and phase error (dG/dφ) of the OPA691IDBVTG4?
The differential gain and phase error (dG/dφ) of the OPA691IDBVTG4 is 0.07%/0.02°.
- Is the OPA691IDBVTG4 suitable for single-supply operations?
Yes, the OPA691IDBVTG4 is designed for single-supply operations and can deliver a 1V to 4V output swing with over 150mA drive current on a single +5V supply.
