Low-power, 100-MHz, RRIO, voltage feedback amplifier
Product details
Parameters
Package | Pins | Size
Features
- Wide-Bandwidth
- Unity-Gain Bandwidth: 100-MHz (AV= 1 V/V)
- Gain-Bandwidth Product: 50-MHz
- Low Power
- Quiescent Current: 720-µA/ch (Typical)
- Power Down Mode: 1.5-µA (Maximum)
- Supply Voltage: 2.7-V to 12.6-V
- Input Voltage Noise: 5.9-nV/√Hz
- Slew Rate: 100-V/µs
- Rail-to-Rail Input and Output
- HD2/HD3: –105 dBc/–125 dBc at 100 kHz (2-VPP)
- Operating Temperature Range:
–40°C to +125°C - Additional Features:
- Overload Power Limit
- Output Short-Circuit Protection
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Description
The OPAx863 devices are low-power, unity-gain stable, rail-to-rail input/output, voltage-feedback operational amplifiers designed to operate over a power supply range of 2.7-V to 12.6-V. Consuming only 750-µA per channel, the OPAx863 devices offer a gain-bandwidth product of 50-MHz, slew rate of 100-V/µs with a voltage noise density of 5.9-nV/√Hz.
The rail-to-rail input stage with 2.7-V supply operation is useful in portable battery powered applications. The differential input stages are well matched for gain-bandwidth product and noise across the full input common-mode voltage range, enabling superior performance with wide-input dynamic range. The OPAx863 devices feature a power-down (PD) mode with a PD quiescent current of 1.5-µA (maximum) with turn-on or turn-off within 10-µs (typical).
The OPAx863 devices include overload power limiting to limit the increase in quiescent current with saturated outputs, thereby preventing excessive dissipation critical in battery-powered systems. The output stage is short-circuit protected, making it a rugged amplifier for general-purpose usage.

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Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | OPAx863 Low-Power, 100-MHz, Rail-to-Rail Input and Output, Voltage-Feedback Amplifier datasheet (Rev. A) | Jun. 30, 2020 |
User guide | OPA2863DGK Evaluation Module | Oct. 07, 2020 | |
Technical article | How to reduce distortion in high-voltage, high-frequency signal generation for AWGs | Oct. 30, 2018 | |
Technical article | What are the advantages of using JFET-input amplifiers in high-speed applications? | Jun. 18, 2018 | |
Technical article | Unique active mux capability combines buffer and switch into one solution | Oct. 10, 2017 | |
Technical article | How to minimize filter loss when you drive an ADC | Oct. 20, 2016 | |
User guide | DEM-OPA-MSOP-2A User's Guide (Rev. A) | May 25, 2006 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
For more information on these types of op amps, as (...)
Description
Features
- Configured for split-supply operation and easily modified for single supply
- Configured for unity-gain non-inverting configuration and easily modified for inverting gain configuration
- Options to configure in different gains and active filter configurations through simple BOM change
- Simple interface to (...)
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Features
- Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
- Noise calculations
- Common unit translation
- Solves common amplifier circuit design problems
- Gain selections using standard resistors
- Filter configurations
- Total noise for common amplifier configurations
- (...)
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CAD/CAE symbols
Package | Pins | Download |
---|---|---|
VSSOP (DGK) | 8 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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