UNI-OPAMP-04

8 opamp, SMT version

Features

• Universal OpAmp Board
  • Configurable 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 for power
• Bypass capacitors
• 59X49mm form factor
• (4) 4-40 mounting holes

Connectors

J1-J4 - Inputs

1. +
2. -
3. GND

• J1 - CH 1
• J2 - CH 2
• J3 - CH 3
• J4 - CH 4

Configurations

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

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

Resistors

OpAmp	Ax-/Ix-	Ax+/Ix+	Ax-/Qx	Ax-/Gnd	Ax+/Gnd
U1A	R1	R2	R3	R4	R5
U1B	R6	R7	R8	R10	R9
U1C	R11	R12	R13	R14	R15
U1D	R16	R17	R18	R20	R19
U2A	R23	R24	R25	R21	R22
U2B	R28	R29	R30	R27	R26
U2C	R33	R34	R35	R31	R32
U2D	R38	R39	R40	R37	R36

Reference Designs

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

Differential Amplifier

Differential Amplifier - Reference Design

Differential Amplifier Stuffing Options

Current to Voltage Converter

Current to Voltage Converter - Reference Design

Voltage to Current Stuffing Options

Inverting Amplifier

Inverting Amplifier - Reference Design

Inverting Amplifier Stuffing Options

Non-inverting Amplifier

Non-inverting Amplifier - Reference Design

Non-inverting Stuffing Options

Schematic

• Schematic

Single Channel Schematic