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OPA1633

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Ultra-low-distortion 195-MHz fully-differential audio amplifier

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Data sheet

OPA1633

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 35 GBW (typ) (MHz) 200 Slew rate (typ) (V/µs) 80 Rail-to-rail No Vos (offset voltage at 25°C) (max) (mV) 2 Iq per channel (typ) (mA) 11 Features Burr-Brown™ Audio, Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.085 Architecture Voltage FB CMRR (typ) (dB) 100 Input bias current (max) (pA) 11500000
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 35 GBW (typ) (MHz) 200 Slew rate (typ) (V/µs) 80 Rail-to-rail No Vos (offset voltage at 25°C) (max) (mV) 2 Iq per channel (typ) (mA) 11 Features Burr-Brown™ Audio, Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.085 Architecture Voltage FB CMRR (typ) (dB) 100 Input bias current (max) (pA) 11500000
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9 SOIC (D) 8 29.4 mm² 4.9 x 6
  • Excellent sound quality
  • Ultra low distortion: 132 dB
  • Low noise: 1.1 nV/√Hz
  • High speed:
    • Slew rate: 80 V/µs
    • Gain bandwidth product: 200 MHz
  • Fully differential architecture:
    • Balanced input and output converts single-ended input to balanced differential output
  • Wide supply range: ±2.5 V to ±17.5 V
  • Shutdown current: 0.77 mA (V S = ± 5 V)
  • Temperature range: –40°C to +85°C
  • Packages: HVSSOP-8, SOIC-8
  • Excellent sound quality
  • Ultra low distortion: 132 dB
  • Low noise: 1.1 nV/√Hz
  • High speed:
    • Slew rate: 80 V/µs
    • Gain bandwidth product: 200 MHz
  • Fully differential architecture:
    • Balanced input and output converts single-ended input to balanced differential output
  • Wide supply range: ±2.5 V to ±17.5 V
  • Shutdown current: 0.77 mA (V S = ± 5 V)
  • Temperature range: –40°C to +85°C
  • Packages: HVSSOP-8, SOIC-8

The OPA1633 is a fully differential amplifier (FDA) designed to drive high-performance audio analog-to-digital converters (ADCs) or as a predriver for class-D amplifiers.

The OPA1633 delivers excellent audio quality, very low noise, a large output voltage swing, and a high current drive. The OPA1633 has an excellent gain bandwidth of 200 MHz and a very fast slew rate of 80 V/µs that helps produce exceptionally low distortion. A very low input voltage noise of 1.1 nV/√Hz further provides 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 OPA1633 provides excellent performance when used to drive high-performance audio ADCs such as the PCM1804. A shutdown feature is included to save power when the device is not in use.

The OPA1633 is characterized to operate from −40°C to +85°C and available in an SO-8 package and a thermally enhanced, HVSSOP PowerPAD™ integrated circuit package.

The OPA1633 is a fully differential amplifier (FDA) designed to drive high-performance audio analog-to-digital converters (ADCs) or as a predriver for class-D amplifiers.

The OPA1633 delivers excellent audio quality, very low noise, a large output voltage swing, and a high current drive. The OPA1633 has an excellent gain bandwidth of 200 MHz and a very fast slew rate of 80 V/µs that helps produce exceptionally low distortion. A very low input voltage noise of 1.1 nV/√Hz further provides 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 OPA1633 provides excellent performance when used to drive high-performance audio ADCs such as the PCM1804. A shutdown feature is included to save power when the device is not in use.

The OPA1633 is characterized to operate from −40°C to +85°C and available in an SO-8 package and a thermally enhanced, HVSSOP PowerPAD™ integrated circuit package.
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Technical documentation

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* Data sheet OPA1633 High-Performance, Fully Differential Audio Operational Amplifier datasheet (Rev. A) PDF | HTML 31 Jul 2023
Application note Compensate Transimpedance Amplifiers Intuitively (Rev. A) 30 Mar 2005

Design & development

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Evaluation board

DEM-FDA-SOIC-EVM — Evaluation module for fully differential amplifiers in SOIC packages

The DEM-FDA-SOIC-EVM is an unpopulated evaluation module (EVM) for fully differential amplifiers (FDA) in the D (SOIC) package. The EVM is designed to enable quick and efficient lab testing of the high-speed FDAs using 50-Ω SMA connectors for use with lab equipment. The schematic (...)

User guide: PDF | HTML
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Simulation model

OPA1633 TINA-TI Reference Circuit

SBOMCD6.TSC (24 KB) - TINA-TI Reference Design
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Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

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 operational-amplifier (...)
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
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Simulation tool

TINA-TI — SPICE-based analog simulation program

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 (...)
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