Overview
The OPA690IDBVT, produced by Texas Instruments, is a wideband, voltage-feedback operational amplifier that offers significant advancements in performance and functionality. This device is notable for its unity-gain stability, high slew rate, and low input voltage noise, making it an excellent choice for high-speed applications. The OPA690 features a new input architecture and output stage design that deliver exceptional performance characteristics, such as a high output current of 215mA and a slew rate of 1900V/µs into a 100Ω load. Additionally, it includes an optional disable control pin that allows for power reduction, making it suitable for battery-powered and portable devices.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Unity-Gain Bandwidth | 535 MHz | G = 1 V/V | |
| Slew Rate | 1900 V/µs | RL = 100Ω | |
| Input Voltage Noise | 4.6 nV/√Hz | ||
| Output Current | 215 mA | ||
| Quiescent Current | 6.1 mA | VS = 5 V | |
| Disable Current | 100 µA | V_DIS = 0 V | |
| Supply Voltage Range | 5 V to 12 V | ||
| Common-Mode Rejection Ratio (CMRR) | 60 dB to 80 dB | V_CM = ±1 V | |
| Power Supply Rejection Ratio (PSRR) | 68 dB to 86 dB |
Key Features
- Unity-gain stable with a bandwidth of 535 MHz
- High slew rate of 1900 V/µs into a 100Ω load
- Low input voltage noise of 4.6 nV/√Hz
- High output current of 215 mA
- Low quiescent current of 6.1 mA and low disable current of 100 µA
- Optional disable control pin for power reduction
- Low distortion with HD2 and HD3 at -85 dBc and -75 dBc respectively at 5 MHz
- Ultra-fast settling time of 13 ns
Applications
- High-speed imaging channels
- ADC buffers
- Portable instruments
- Transimpedance amplifiers
- Active filters
- Video line drivers
- xDSL line drivers and receivers
Q & A
- What is the unity-gain bandwidth of the OPA690IDBVT?
The unity-gain bandwidth of the OPA690IDBVT is 535 MHz.
- What is the slew rate of the OPA690IDBVT?
The slew rate of the OPA690IDBVT is 1900 V/µs into a 100Ω load.
- What is the input voltage noise of the OPA690IDBVT?
The input voltage noise of the OPA690IDBVT is 4.6 nV/√Hz.
- What is the maximum output current of the OPA690IDBVT?
The maximum output current of the OPA690IDBVT is 215 mA.
- What is the quiescent current of the OPA690IDBVT?
The quiescent current of the OPA690IDBVT is 6.1 mA.
- How does the disable feature work on the OPA690IDBVT?
The OPA690IDBVT has an optional disable control pin. When this pin is pulled low, the device enters a high-impedance state and the supply current drops to less than 100 µA.
- What is the common-mode rejection ratio (CMRR) of the OPA690IDBVT?
The CMRR of the OPA690IDBVT is between 60 dB and 80 dB.
- What is the power supply rejection ratio (PSRR) of the OPA690IDBVT?
The PSRR of the OPA690IDBVT is between 68 dB and 86 dB.
- What are some typical applications of the OPA690IDBVT?
Typical applications include high-speed imaging channels, ADC buffers, portable instruments, transimpedance amplifiers, active filters, video line drivers, and xDSL line drivers and receivers.
- What is the supply voltage range for the OPA690IDBVT?
The supply voltage range for the OPA690IDBVT is from 5 V to 12 V.
