Difference between revisions of "UNI-OPAMP-04"

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[[File:tindie-mediums.png|link=https://www.tindie.com/products/land_boards/universal-op-amp-card-uni-opamp-08/]]
+
[[File:tindie-mediums.png|link=https://www.tindie.com/products/land_boards/universal-op-amp-pcb/]]
  
−
== Four Channel Universal Op Amp ==
+
<video type="youtube">7qXgfwQObBk</video>
  
−
[[File:UNI-OPAMP-04_FRONT_3D.png]]
+
[[File:UNI-OPAMP-04_P18586-720px.jpg]]
  
 
== Features ==
 
== Features ==
  
 
* Universal OpAmp Board
 
* Universal OpAmp Board
−
** Configurable for typical OpAmp circuits
+
** Configurable through stuffing options for typical OpAmp circuits
−
* 8 Channels
+
** Through hole parts
−
* 2 Quad OpAmps
+
** 14 pin DIP
−
** [https://www.onsemi.com/pub/Collateral/LM324-D.PDF LM324] parts (typical) in SOIC-14 package
+
** 1/8 or 1/4W resistors
−
*** 3V to 32V
+
* 4 Channels, 1 Quad OpAmp
−
** Also supports lower voltage op amps such as [https://www.microchip.com/wwwproducts/en/MCP6004 MCP6004]
+
** [https://www.onsemi.com/pub/Collateral/LM324-D.PDF LM324], [https://www.microchip.com/wwwproducts/en/MCP6004 MCP6004],  [https://www.mouser.com/datasheet/2/294/NJM2060_E-1917248.pdf NJM2060]
−
*** 1.8V to 6V
+
* Individual input and output headers per channel
−
** SMT parts
+
* Terminal block or header for power
−
* Individual 4-pin headers per channel
 
−
* Terminal block for power
 
 
* Bypass capacitors
 
* Bypass capacitors
−
* 49X49mm form factor
+
* 59X49mm form factor
 
* (4) 4-40 mounting holes
 
* (4) 4-40 mounting holes
 +
 +
=== Typical OpAmps===
 +
 +
{| class="wikitable"
 +
! Part
 +
! LM324
 +
! MCP6004
 +
! NJM2060
 +
|-
 +
| Operating Voltage
 +
| 3 to 30V
 +
| 1.8V to 6V
 +
| +/-4 to +/-18V
 +
|-
 +
| GBW Product
 +
| 1.2 MHz
 +
| 1 MHz
 +
| 10 MHz
 +
|-
 +
| Output Current (mA)
 +
| 10mA
 +
| 23mA
 +
| 25mA
 +
|-
 +
| Offset Voltage (max)
 +
| 7mV
 +
| 4.5mV
 +
| 6mV
 +
|-
 +
|}
  
 
== Connectors ==
 
== Connectors ==
  
−
[[File:UNI-OPAMP-08_Conn.PNG]]
+
[[file:UNI-OPAMP-04_CAD_Rev1.PNG]]
 +
 
 +
=== J1-J4 - Inputs ===
 +
 
 +
* Pinout
 +
 
 +
# Opamp + input
 +
# Opamp - input
 +
# GND
 +
 
 +
* J1 - CH 1
 +
* J2 - CH 2
 +
* J3 - CH 3
 +
* J4 - CH 4
 +
 
 +
=== J5-J8 - Outputs ===
 +
 
 +
* Pinouts
 +
 
 +
# Opamp Out
 +
# GND
 +
 
 +
* J5 - CH 1
 +
* J6 - CH 2
 +
* J7 - CH 3
 +
* J8 - CH 4
  
 
== Configurations ==
 
== Configurations ==
Line 30: Line 83:
 
* The reference designs (below) are for the first channel.
 
* The reference designs (below) are for the first channel.
  
−
[[File:OpAMP-sch - 787px.PNG]]
+
[[File:UNI-OPAMP-04_Ch1_Rev1.PNG]]
  
 
* The resistor mapping from the first channel on the schematic to the other channels are as follows.
 
* The resistor mapping from the first channel on the schematic to the other channels are as follows.
  
−
=== Resistors ===
+
=== Resistor Stuffing by Channel ===
 +
 
 +
[[FILE:UNI-OPAMP-04 CAD Rev1.PNG]]
  
 
{| class="wikitable"
 
{| class="wikitable"
−
!OpAmp
+
! OpAmp
−
!Ax-/Ix-
+
! Ax-/Ix-
−
!Ax+/Ix+
+
! Ax+/Ix+
−
!Ax-/Qx
+
! Ax-/Qx
−
!Ax-/Gnd
+
! Ax-/GND
−
!Ax+/Gnd
+
! Ax+/GND
 +
! Ax+/VCC
 
|-
 
|-
−
|U1A
+
| U1A
−
|R1
+
| R3
−
|R2
+
| R5
−
|R3
+
| R1
−
|R4
+
| R2
−
|R5
+
| R4
 +
| R6
 
|-
 
|-
−
|U1B
+
| U1B
−
|R6
+
| R10
−
|R7
+
| R9
−
|R8
+
| R12
−
|R10
+
| R11
−
|R9
+
| R7
 +
| R8
 
|-
 
|-
−
|U1C
+
| U1C
−
|R11
+
| R22
−
|R12
+
| R19
−
|R13
+
| R24
−
|R14
+
| R23
−
|R15
+
| R21
 +
| R20
 
|-
 
|-
−
|U1D
+
| U1D
−
|R16
+
| R15
−
|R17
+
| R17
−
|R18
+
| R13
−
|R20
+
| R14
−
|R19
+
| R16
−
|-
+
| R18
−
|U2A
 
−
|R23
 
−
|R24
 
−
|R25
 
−
|R21
 
−
|R22
 
−
|-
 
−
|U2B
 
−
|R28
 
−
|R29
 
−
|R30
 
−
|R27
 
−
|R26
 
−
|-
 
−
|U2C
 
−
|R33
 
−
|R34
 
−
|R35
 
−
|R31
 
−
|R32
 
−
|-
 
−
|U2D
 
−
|R38
 
−
|R39
 
−
|R40
 
−
|R37
 
−
|R36
 
 
|-
 
|-
 
|}
 
|}
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== Reference Designs ==
 
== Reference Designs ==
  
−
* Reference drawings are from [https://www.ti.com/lit/an/snla140c/snla140c.pdf Ap Note 31]
+
* Reference drawings are from [https://www.ti.com/lit/an/snla140c/snla140c.pdf TI Ap Note 31 - Op Amp Circuit Collection]
 
* Reference designators are for channel 1
 
* Reference designators are for channel 1
 
** See resistor values table (above) [http://land-boards.com/UNI-OPAMP-08/UNI-OPAMP-08_Schematic.pdf schematic] for other channels
 
** See resistor values table (above) [http://land-boards.com/UNI-OPAMP-08/UNI-OPAMP-08_Schematic.pdf schematic] for other channels
Line 110: Line 142:
 
=== Differential Amplifier ===
 
=== Differential Amplifier ===
  
−
==== Differential Amplifier - Reference Design ====
+
==== Differential Amplifier - Reference Design (AN31) ====
  
 
[[File:Ap31-OpAmp-DiffAmp.PNG]]
 
[[File:Ap31-OpAmp-DiffAmp.PNG]]
Line 120: Line 152:
 
=== Current to Voltage Converter ===
 
=== Current to Voltage Converter ===
  
−
==== Current to Voltage Converter - Reference Design ====
+
==== Current to Voltage Converter - Reference Design (AN31) ====
  
 
[[File:Ap31-OpAmp-Curr2Volts.PNG]]
 
[[File:Ap31-OpAmp-Curr2Volts.PNG]]
  
−
==== Voltage to Current Stuffing Options ====
+
==== Current to Voltage Stuffing Options ====
  
 
[[File:OpAMP-sch - Curr2Volts.PNG]]
 
[[File:OpAMP-sch - Curr2Volts.PNG]]
Line 130: Line 162:
 
=== Inverting Amplifier ===
 
=== Inverting Amplifier ===
  
−
==== Inverting Amplifier - Reference Design ====
+
==== Inverting Amplifier - Reference Design (AN31) ====
  
 
[[File:Ap31-OpAmp-InvAmp.PNG]]
 
[[File:Ap31-OpAmp-InvAmp.PNG]]
Line 140: Line 172:
 
=== Non-inverting Amplifier ===
 
=== Non-inverting Amplifier ===
  
−
==== Non-inverting Amplifier - Reference Design ====
+
==== Non-inverting Amplifier - Reference Design (AN31) ====
  
 
[[File:Ap31-OpAmp-NonInvAmp.PNG]]
 
[[File:Ap31-OpAmp-NonInvAmp.PNG]]
Line 150: Line 182:
 
== Schematic ==
 
== Schematic ==
  
−
* [http://land-boards.com/UNI-OPAMP-08/UNI-OPAMP-08_Schematic.pdf Schematic]
+
* [http://land-boards.com/UNI-OPAMP-04/UNI-OPAMP-04_Rev1_Schematic.pdf Schematic]
 +
 
 +
=== Single Channel Schematic (Editable) ===
 +
 
 +
[[File:OpAMP-sch-EDITABLE.png]]
 +
 
 +
=== U1 Part A Schematic ===
 +
 
 +
[[file:UNI-UPAMP-04_PartA.PNG]]
 +
 
 +
=== U1 Part B Schematic ===
 +
 
 +
[[file:UNI-UPAMP-04_PartB.PNG]]
 +
 
 +
=== U1 Part C Schematic ===
 +
 
 +
[[file:UNI-UPAMP-04_PartC.PNG]]
 +
 
 +
=== U1 Part D Schematic ===
 +
 
 +
[[file:UNI-UPAMP-04_PartD.PNG]]
 +
 
 +
== Test ==
 +
 
 +
=== Measure OpAmp Input offset voltages ===
 +
 
 +
* Configure UNI-OPAMP-04 measure input offset voltages
 +
 
 +
[[file:UNI-OPAMP-04_P18584-OffsetVoltages_720px.jpg]]
 +
 
 +
* From [https://www.electroschematics.com/test-op-amps-via-simple-input-offset-voltage-measurement/ Test Op Amps Via Simple Input Offset Voltage Measurement]
 +
* [[Benchtop_Power_Supply_DPS3005|DPS3005 Power Supply]]
 +
** 0.1A current limit
 +
** Use built in current meter to measure power supply current
 +
* Measure using DMM Extec EX330
 +
** 0.1 mV resolution
 +
* Pick off split voltage at R8 (not power side)
 +
* 12V for LM324NE3, NJM2080D
 +
* 5V for MCP6004-E/IP
 +
* Jumpers between + inputs
 +
 
 +
[[file:Input-Offset-Voltage-Test-Schematic_Ann.png]]
 +
 
 +
=== Voltage Offset Measurements ===
 +
 
 +
* New parts purchased from Mouser 2022-Aug
 +
* Bought tubes of 10 each
 +
* Picked first part out of each tube
 +
 
 +
* [https://www.mouser.com/ProductDetail/595-LM324NE3 LM324NE3]
 +
** Channel A, 0.7mV
 +
** Channel B, 0.3mV
 +
** Channel C, 0.5mV
 +
** Channel D, 0.5mV
 +
** Vcc = 12V
 +
** Icc = 1mA
 +
* [https://www.mouser.com/ProductDetail/513-NJM2060D NJM2080D]
 +
** Channel A, 0.2mV
 +
** Channel B, 0.4mV
 +
** Channel C, 0.7mV
 +
** Channel D, 0.6mV
 +
** Vcc = 12V
 +
** Icc = 8mA
 +
* [https://www.mouser.com/ProductDetail/579-MCP6004-E-P MCP6004]
 +
** Channel A, <0.1mV
 +
** Channel B, 0.8mV
 +
** Channel C, 1.3mV
 +
** Channel D, 1.1mV
 +
** Vcc = 5V
 +
** Icc = 1mA
 +
 
 +
== Mechanicals ==
 +
 
 +
[[file:UNI-OPAMP-04_REV1_MECHS.PNG]]
 +
 
 +
== Videos ==
 +
 
 +
* [https://www.youtube.com/playlist?list=PLXDK0MeyK4ZgWkzd59wLkir7ZjI7fIsFn IMSAIGuy OpAmp videos playlist]
 +
 
 +
<video type="youtube">YeNpd-sXaHk</video>
  
−
=== Single Channel Schematic ===
+
== Assembly Sheet ==
  
−
[[File:OpAMP-sch- Ch1 X2.PNG]]
+
* [[UNI-OPAMP-04 Rev 1 Assembly Sheet]]

Latest revision as of 11:26, 22 August 2022

Tindie-mediums.png

UNI-OPAMP-04 P18586-720px.jpg

Features

  • Universal OpAmp Board
    • Configurable through stuffing options for typical OpAmp circuits
    • Through hole parts
    • 14 pin DIP
    • 1/8 or 1/4W resistors
  • 4 Channels, 1 Quad OpAmp
  • Individual input and output headers per channel
  • Terminal block or header for power
  • Bypass capacitors
  • 59X49mm form factor
  • (4) 4-40 mounting holes

Typical OpAmps

Part LM324 MCP6004 NJM2060
Operating Voltage 3 to 30V 1.8V to 6V +/-4 to +/-18V
GBW Product 1.2 MHz 1 MHz 10 MHz
Output Current (mA) 10mA 23mA 25mA
Offset Voltage (max) 7mV 4.5mV 6mV

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.

Resistor Stuffing 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

Differential Amplifier

Differential Amplifier - Reference Design (AN31)

Ap31-OpAmp-DiffAmp.PNG

Differential Amplifier Stuffing Options

OpAMP-DiffAmp.PNG

Current to Voltage Converter

Current to Voltage Converter - Reference Design (AN31)

Ap31-OpAmp-Curr2Volts.PNG

Current to Voltage Stuffing Options

OpAMP-sch - Curr2Volts.PNG

Inverting Amplifier

Inverting Amplifier - Reference Design (AN31)

Ap31-OpAmp-InvAmp.PNG

Inverting Amplifier Stuffing Options

OpAMP-sch - InvAmp.PNG

Non-inverting Amplifier

Non-inverting Amplifier - Reference Design (AN31)

Ap31-OpAmp-NonInvAmp.PNG

Non-inverting Stuffing Options

OpAMP-sch - NonInvAmp.PNG

Schematic

Single Channel Schematic (Editable)

OpAMP-sch-EDITABLE.png

U1 Part A Schematic

UNI-UPAMP-04 PartA.PNG

U1 Part B Schematic

UNI-UPAMP-04 PartB.PNG

U1 Part C Schematic

UNI-UPAMP-04 PartC.PNG

U1 Part D Schematic

UNI-UPAMP-04 PartD.PNG

Test

Measure OpAmp Input offset voltages

  • Configure UNI-OPAMP-04 measure input offset voltages

UNI-OPAMP-04 P18584-OffsetVoltages 720px.jpg

Input-Offset-Voltage-Test-Schematic Ann.png

Voltage Offset Measurements

  • New parts purchased from Mouser 2022-Aug
  • Bought tubes of 10 each
  • Picked first part out of each tube
  • LM324NE3
    • Channel A, 0.7mV
    • Channel B, 0.3mV
    • Channel C, 0.5mV
    • Channel D, 0.5mV
    • Vcc = 12V
    • Icc = 1mA
  • NJM2080D
    • Channel A, 0.2mV
    • Channel B, 0.4mV
    • Channel C, 0.7mV
    • Channel D, 0.6mV
    • Vcc = 12V
    • Icc = 8mA
  • MCP6004
    • Channel A, <0.1mV
    • Channel B, 0.8mV
    • Channel C, 1.3mV
    • Channel D, 1.1mV
    • Vcc = 5V
    • Icc = 1mA

Mechanicals

UNI-OPAMP-04 REV1 MECHS.PNG

Videos

Assembly Sheet

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