Dual, low-power, 110-MHz, 12-V, RRIO voltage feedback amplifier
Product details
Parameters
Package | Pins | Size
Features
- Wide-bandwidth
- Unity-gain bandwidth: 110-MHz (AV= 1 V/V)
- Gain-bandwidth product: 50-MHz
- Low power
- Quiescent current: 700-µA/ch (typical)
- Power down mode: 1.4-µA (maximum)
- Supply voltage: 2.7-V to 12.6-V
- Input voltage noise: 5.9-nV/√ Hz
- Slew rate: 105-V/µs
- Rail-to-rail input and output
- HD2/HD3: –129 dBc/–138 dBc at 20 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 or output, voltage-feedback operational amplifiers designed to operate over a power supply range of 2.7-V to 12.6-V. Consuming only 700-µA per channel, the OPAx863 devices offer a gain-bandwidth product of 50-MHz, slew rate of 105-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 OPA863 features a power-down (PD) mode with a PD quiescent current of 1.4-µA (maximum) with turn-on or turn-off within 6.5-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.
Technical documentation
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View all 7 | Type | Title | Date | |
|---|---|---|---|
| * | Data sheet | OPAx863 Low-Power, 110-MHz, Rail-to-Rail Input and Output, Voltage-Feedback Amplifier datasheet (Rev. C) | Apr. 27, 2021 |
| 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. 19, 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
DEM-OPA-MSOP-2A
Description
The DEM-OPA-MSOP-2A demonstration fixture helps designers evaluate the operation and performance of TI's dual, high speed, wideband operational amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead MSOP (DGK) package.
For more information on these types of op amps, as (...)
For more information on these types of op amps, as (...)
OPA2863DGKEVM
Description
The OPA2863DGKEVM is an evaluation module (EVM) for the dual-channel OPA2863 amplifier in the DGK (VSSOP-8) package. The OPA2863 is a low-power, unity-gain stable, rail-to-rail input/output, voltage-feedback operational amplifier designed to operate over a power-supply range of 2.7 V to 12.6 V. The (...)
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
SBOMBG1C.ZIP (23 KB) - PSpice Model
SBOMBH9B.TSC (23 KB) - TINA-TI Reference Design
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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
- (...)
TINA-TI — TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
ANALOG-ENGINEER-CALC — The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
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
- (...)
VOLT-DIVIDER-CALC — VOLT-DIVIDER-CALC quickly determines a set of resistors for a voltage divider. This KnowledgeBase Javascript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. This calculator can also be used to design non-inverting attentuation circuits.
(...)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| VSSOP (DGK) | 8 | View options |
Ordering & quality
Information included:
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- 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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