Overview
The OPA695IDBVT is a high-bandwidth, current-feedback operational amplifier produced by Texas Instruments. It is designed to deliver precision, low-distortion, and high dynamic range performance, making it ideal for intermediate gain stages in high-speed instrumentation systems. The amplifier boasts an exceptional 5000V/μs slew rate and low input voltage noise, ensuring high-quality signal processing.
The OPA695IDBVT is optimized for high-gain operation and is suitable for various applications, including interfacing current DAC outputs, serving as gain stages in high-speed digitizers, and delivering high output power at low distortion for cable-modem upstream line drivers. It operates over a wide temperature range of –40°C to +85°C and features a low supply current of 14mA at 25°C, with an optional disable control pin to reduce power consumption further.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Bandwidth (G = +1V/V) | 1900 MHz | |
| Bandwidth (G = +8V/V) | 600 MHz | |
| Large-signal bandwidth (2VPP) | 540 MHz | |
| Output voltage swing | ±4.05 V | |
| Slew rate | 5000 V/μs | |
| Input voltage noise | 2 nV/√Hz | |
| Supply range | 5 V to 12 V | |
| Supply current | 14 mA | |
| Shutdown current | 160 μA | |
| Operating temperature range | –40°C to +85°C | |
| Package type | SOT-23 (DBV) |
Key Features
- Wide bandwidth: 1900MHz (G = +1V/V) and 600MHz (G = +8V/V)
- Large-signal bandwidth: 540MHz (2VPP)
- Ultra-high slew rate: 5000V/μs
- Low input voltage noise: 2nV/√Hz
- High output current: ±140mA
- Low distortion: HD2, HD3 at 10MHz –65dBc, –92dBc
- Optional disable control pin for power saving
- Ultra-small SOT23-6 packaging
- Single 5V operation capability
Applications
- High-speed instrumentation systems
- Interfacing current DAC outputs
- Gain stages in high-speed digitizers
- Cable-modem upstream line drivers
- Buffering surface acoustic wave (SAW) filters in IF strips
- Video line drivers for high-resolution RGB applications
- Portable instruments due to low power consumption and small packaging
- Active filters and ARB waveform output drivers
Q & A
- What is the slew rate of the OPA695IDBVT?
The slew rate of the OPA695IDBVT is 5000V/μs.
- What are the bandwidth specifications of the OPA695IDBVT?
The bandwidth is 1900MHz at a gain of +1V/V and 600MHz at a gain of +8V/V.
- What is the input voltage noise of the OPA695IDBVT?
The input voltage noise is 2nV/√Hz.
- What is the supply current of the OPA695IDBVT?
The supply current is 14mA at 25°C.
- How does the disable control pin function in the OPA695IDBVT?
The disable control pin reduces the supply current to less than 160μA when pulled low, allowing for power-saving in standby modes.
- What are the typical applications of the OPA695IDBVT?
Typical applications include high-speed instrumentation systems, interfacing current DAC outputs, gain stages in high-speed digitizers, and cable-modem upstream line drivers.
- What is the operating temperature range of the OPA695IDBVT?
The operating temperature range is –40°C to +85°C.
- What package types are available for the OPA695IDBVT?
The OPA695IDBVT is available in SOT-23 (DBV), VSSOP-8, and SOIC-8 packages.
- What is the output voltage swing of the OPA695IDBVT?
The output voltage swing is ±4.05V.
- How much output current can the OPA695IDBVT source or sink?
The OPA695IDBVT can source or sink up to ±140mA of output current.
