Difference between revisions of "UNI-OPAMP-04"

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Line 15: Line 15:
 
** SMT parts
 
** SMT parts
 
* Individual input and output headers per channel
 
* Individual input and output headers per channel
* Terminal block for power
+
* Terminal block or header for power
 
* Bypass capacitors
 
* Bypass capacitors
 
* 59X49mm form factor
 
* 59X49mm form factor

Revision as of 14:16, 29 July 2022

Tindie-mediums.png 8 opamp, SMT version

UNI-OPAMP-04 FRONT 3D.png

Features

  • Universal OpAmp Board
    • Configurable through stuffing options for typical OpAmp circuits
  • 4 Channels
  • 1 Quad OpAmp
    • LM324 parts (typical) in DIP-14 package
      • 3V to 32V
    • Also supports lower voltage op amps such as MCP6004
      • 1.8V to 6V
    • SMT parts
  • Individual input and output headers per channel
  • Terminal block or header for power
  • Bypass capacitors
  • 59X49mm form factor
  • (4) 4-40 mounting holes

Connectors

UNI-OPAMP-04 CAD Rev1.PNG

J1-J4 - Inputs

  • Pinout
  1. Opamp + input
  2. Opamp - input
  3. GND
  • J1 - CH 1
  • J2 - CH 2
  • J3 - CH 3
  • J4 - CH 4

J5-J8 - Outputs

  • Pinouts
  1. Opamp Out
  2. GND
  • J5 - CH 1
  • J6 - CH 2
  • J7 - CH 3
  • J8 - CH 4

Configurations

  • The reference designs (below) are for the first channel.

UNI-OPAMP-04 Ch1 Rev1.PNG

  • The resistor mapping from the first channel on the schematic to the other channels are as follows.

Resistors by Channel

UNI-OPAMP-04 CAD Rev1.PNG

OpAmp Ax-/Ix- Ax+/Ix+ Ax-/Qx Ax-/GND Ax+/GND Ax+/VCC
U1A R3 R5 R1 R2 R4 R6
U1B R10 R9 R12 R11 R7 R8
U1C R22 R19 R24 R23 R21 R20
U1D R15 R17 R13 R14 R16 R18

Reference Designs

  • Reference drawings are from TI Ap Note 31
  • Reference designators are for channel 1
    • See resistor values table (above) schematic for other channels

Differential Amplifier

Differential Amplifier - Reference Design

Ap31-OpAmp-DiffAmp.PNG

Differential Amplifier Stuffing Options

OpAMP-DiffAmp.PNG

Current to Voltage Converter

Current to Voltage Converter - Reference Design

Ap31-OpAmp-Curr2Volts.PNG

Voltage to Current Stuffing Options

OpAMP-sch - Curr2Volts.PNG

Inverting Amplifier

Inverting Amplifier - Reference Design

Ap31-OpAmp-InvAmp.PNG

Inverting Amplifier Stuffing Options

OpAMP-sch - InvAmp.PNG

Non-inverting Amplifier

Non-inverting Amplifier - Reference Design

Ap31-OpAmp-NonInvAmp.PNG

Non-inverting Stuffing Options

OpAMP-sch - NonInvAmp.PNG

Schematic

Single Channel Schematic

UNI-OPAMP-04 Ch1 Rev1.PNG

Mechanicals

UNI-OPAMP-04 REV1 MECHS.PNG