Parts Selection

1. Input buffer

   AD8421BR (DigiKey)

2. Variable gain

   LMH6505 (DigiKey)

3. General Purpose

   LM7171BIM (DigiKey)

4. Low Frequency Low Noise Amplifier

   MAX44251 (DigiKey)

5. Analog Switches

   1. Normal Close

      DG467 (DigiKey)

   2. Normal Open

      DG468 (DigiKey)

   3. SPDT

      DG469 (DigiKey)

6. Power Supply

   1. AC-DC

      KPS5-5 (DigiKey)

   2. DC-DC

      • RB-0505D
      • RB-0512D
      • RB-0515S

7. Connectors

   1. Ribbon Cable

      • 302-S101
      • 101-106

   2. SMA

      1814832

8. Potentiometers

   84WR*LF

9. Resistors

   1. Single

      RMCF0603FT*

   2. Precision Voltage Divider

      MAX5490TA05000 (DigiKey)

10. Capacitors

    1. Small

       C1206C*

    2. Big

       UWT1E331MNL1GS (330uF, 25V)

11. Low Noise Linear Low Dropout(LDO) Voltage Regulator

    1. Negative

       TPS7A30

    2. Positive

       TPS7A49

12. Inductors

    1. Large

       SRN1060

    2. Small

       MLZ2012

    3. Ferrite Beads

       CIM21J252NE

13. RF Diode

    MMBD770T1G (DigiKey)

Specifications

Part Number	Power	Input	Output	Packaging
AD8421BR	±2.5V ~ ±18V (2mA)	(V-)+2.3V ~ (V+)-1.8V	(V-)+1.2V ~ (V+)-1.6V	8-MSOP / 8-SOIC
LMH6505	±3.5V ~ ±6V (2μA)	±7mA / ±0.6V	±2.4V ~ ±3V	8-MSOP / 8-SOIC
LM7171BIM	±2.75V ~ ±18V (7mA)	±10V (?)	±10V (For ±15V)	8-SOIC
MAX44251	±1.35V ~ ±10V (1.15mA)	(V-)-0.05V ~ (V+)-1.5V	(V-)+0.03V ~ (V+) - 0.05V	8-MSOP / SOT-23-8
DG467/DG468	±4.5V ~ ±20V (20μA)			6-TSOP
DG469	±4.5V ~ ±20V (20μA)			8-MSOP / 8-SOIC
TPS7A30		3V ~ 35V	1.19V ~ 33V (150mA)	8-MSOP PowerPad
TPS7A49		-3V ~ - 35V	-1.18 ~ -33V (200mA)	8-MSOP PowerPad

Power Supply Board

Op-Amp Test Board

PID Board

PID Tweak Board