Fully Differential I/O Audio Amplifier
Product details
Parameters
Package | Pins | Size
Features
- Slew Rate: 50 V/μs
- Gain Bandwidth: 180 MHz
- Balanced Input and Output Converts Single-Ended Input to Balanced Differential Output
- Audio ADC Driver
- Balanced Line Driver
- Balanced Receiver
- Active Filter
- Preamplifier
Description
The OPA1632 is a fully-differential amplifier designed for driving high-performance audio analog-to-digital converters (ADCs). It provides the highest audio quality, with very low noise and output drive characteristics optimized for this application. The OPA1632’s excellent gain bandwidth of 180 MHz and very fast slew rate of 50 V/μs produce exceptionally low distortion. Very low input noise of 1.3 nV/√Hz further ensures maximum signal-to-noise ratio and dynamic range.
The flexibility of the fully differential architecture allows for easy implementation of a single-ended to fully-differential output conversion. Differential output reduces even-order harmonics and minimizes common-mode noise interference. The OPA1632 provides excellent performance when used to drive high-performance audio ADCs such as the PCM1804. A shutdown feature also enhances the flexibility of this amplifier.
The OPA1632 is available in an SO-8 package and a thermally-enhanced MSOP-8 PowerPAD package.
For all available packages, see the orderable addendum at the end of the data sheet.Technical documentation
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View all 15 Design & development
For additional terms or required resources, click any title below to view the detail page where available.Design tools & simulation
SBOC064C.ZIP (2 KB) - PSpice Model
SBOC100D.TSC (270 KB) - TINA-TI Reference Design
SBOM182C.ZIP (6 KB) - TINA-TI Spice Model
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
- (...)
Reference designs
TIDA-01359 — The Analog Audio Amplifier Front-end Reference Design demonstrates how to build an audio front end for the TPA32xx class-D amplifier. The AUDIO-OPA1632EVM is the board that was designed to test the results of this design. Design files for the board are available in the reference design product (...)
Design files
-
download TIDA-01359 Assembly Files.zip (862KB) -
download TIDA-01359 BOM.pdf (79KB) -
download TIDA-01359 CAD Files.zip (1184KB) -
download TIDA-01359 Gerber.zip (3019KB) -
download TIDA-01359 PCB.pdf (1011KB)
PMP10710 — PMP10710 is a 200W design for public announcement audio system which can be used in 100W +100W Stereo or 200W Woofer Applications. The design is broadly divided into four main stages:
- Single-Phase Synchronous Boost Converter using the LM5122 controller IC. The design accepts an input voltage of (...)
Design files
-
download PMP10710 BOM.pdf (27KB) -
download PMP10710 Gerber.zip (578KB)
TIDA-RESOLVER-APPLICATIONS-REFERENCE-DESIGN — This reference design is a complete solution for resolver applications and part of a modular system for evaluating TI delta-sigma modulators. The software included allows use of the AMC1210 in a variety of configurations for resolver and current shunt applications and features a data-export utility (...)
Design files
-
download BOM for AMC1210EVM-MB.zip (14KB) -
download AMC1210MB-EVM Gerber.zip (117KB) -
download AMC1210MB-EVM PCB.zip (645KB)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| HVSSOP (DGN) | 8 | View options |
| SOIC (D) | 8 | View options |
Ordering & quality
Information included:
- 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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