OPA1641/1642/1644 SoundPLUS™ High-Performance, JFET-Input Audio OpAmps - OPA1644


OPA1641/1642/1644 SoundPLUS™ High-Performance, JFET-Input Audio OpAmps


Models (6)

Title Category Type Size (KB) Date Views
OPA1644 PSpice Model PSpice Model ZIP 80 KB 12 Jan 2012 42 views
OPA1642 PSpice Model PSpice Model ZIP 80 KB 13 Oct 2011 108 views
OPA1644 TINA-TI Reference Design TINA-TI Reference Design TSC 178 KB 18 Nov 2011 16 views
OPA1642 TINA-TI Reference Design (Rev. A) TINA-TI Reference Design TSC 182 KB 13 Oct 2011 40 views
OPA1644 TINA-TI Spice Model TINA-TI Spice Model ZIP 7 KB 18 Nov 2011 22 views
OPA1642 TINA-TI Spice Model (Rev. A) TINA-TI Spice Model ZIP 7 KB 13 Oct 2011 35 views

Design kits & evaluation modules (3)

Name Part# Type
DIP Adapter Evaluation Module DIP-ADAPTER-EVM Evaluation Modules & Boards
Universal Do-It-Yourself (DIY) Amplifier Circuit Evaluation Module DIYAMP-EVM Evaluation Modules & Boards
Universal Operational Amplifier Evaluation Module OPAMPEVM Evaluation Modules & Boards

Reference designs

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TI Designs

Tone Stack for Guitar Amplifier Reference Design

This split-supply, high-performance guitar tone circuit provides control of the bass, mid, and treble frequencies of an electric guitar signal, while also providing gain with minimal distortion and noise. Buffered inputs and outputs preserve the behavior of the system independent of the source and (...)

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Development tools (3)

Name Part# Type
Analog Engineer's Calculator ANALOG-ENGINEER-CALC Calculation Tools
Noise Calculator, Generator and Examples OPAMP-NOISECALC Calculation Tools
SPICE-Based Analog Simulation Program TINA-TI Circuit Design & Simulation

WEBENCH® Designer OPA1644

Amplifier Topology
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 4.5 to 36.0 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -40.0 °C
Maximum Temperature = 85.0 °C