Wired-OR MUX and PGA Reference Design TIDA-01565 (ACTIVE)

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Key Document

Description

This board demonstrates a wired-OR multiplexer (MUX) and a programmable gain amplifier (PGA) application of the OPA837 operational amplifier. These applications are made possible with the high-impedance output of the amplifier and the high-impedance inverting input while in power-down (PD) mode. It is possible to select the output of the MUX or PGA with the onboard dual-inline package (DIP) switches or transistor logic inputs from SMA connectors. The board is single or dual-supply compatible up to 5.25 V. An optional noise filter is included at the output to eliminate broadband noise for PGA designs with lower bandwidth.

Features
  • Change between MUX and PGA configurations
  • Drive with single or dual supplies
  • Supplemental DIP switch input provides simple output selection
  • True input to output isolation

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Schematic/Block Diagram

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Design Files

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
OPA837  Low Power, Precision, 105 MHz, Voltage Feedback Op Amp  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G139  2-Line-to-4-Line Decoder  Specialty logic  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC2G04  Dual Inverter  Buffer/driver  Sample & Buy Not Available
TLV2362  Dual High-Performance, Low-Voltage Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
OPA837 Download
Download
SN74LVC1G139 Download Download
Download Download
Download -
SN74LVC2G04 Download Download
Download Download
Download Download
Download -
TLV2362 Download Download
Download Download
Download Download
Download -
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Technical Documents

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Datasheet (1)
Title Type Size (KB) Date
PDF 2812 12 Dec 2018
User guides (1)
Title Type Size (KB) Date
PDF 4067 26 Jul 2018
Design files (6)
Title Type Size (KB) Date
ZIP 2245 26 Jul 2018
ZIP 3226 26 Jul 2018
PDF 779 26 Jul 2018
PDF 697 26 Jul 2018
PDF 17 26 Jul 2018
ZIP 168 26 Jul 2018

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