SBAU433B November   2025  – April 2026 ADS125H18

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Analog Inputs
      1. 2.1.1 Differential Current Input Channels
      2. 2.1.2 Differential Voltage Inputs Channels
      3. 2.1.3 Combined Differential Current and Voltage Input Channels
      4. 2.1.4 Single-Ended Current Input Channels
    2. 2.2 ADC Connections and Decoupling
    3. 2.3 Digital Interface
    4. 2.4 Power Supplies
    5. 2.5 Voltage Reference
    6. 2.6 Clocking
    7. 2.7 Using the ADS125H18 EVM With an External Controller
  9. 3Software
    1. 3.1 Software Description
    2. 3.2 ADS125H18 GUI Installation
  10. 4Implementation Results
    1. 4.1 Hardware Connections
    2. 4.2 GUI Operation
      1. 4.2.1 ADC Capture Settings and Sequencer Configuration
      2. 4.2.2 Time-Domain Display
      3. 4.2.3 Frequency-Domain Display
      4. 4.2.4 Histogram Display
      5. 4.2.5 EVM Register Settings
  11. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials (BOM)
  12. 6Additional Information
    1. 6.1 Trademarks
  13. 7Revision History

5.3 Bill of Materials (BOM)

Table 5-1 lists the bill of materials (BOM) for the ADS125H18 EVM

Table 5-1 ADS125H18 EVM BOM

Designator

Quantity

Value

Description

Package Reference

Part Number

Manufacturer

C1

1

47uF

CAP, CERM, 47uF, 25V, +/- 20%, X5R, 1206_190

1206_190

C3216X5R1E476M160AC

TDK

C2

1

47uF

CAP, CERM, 47uF, 10V, +/- 20%, X5R, 0805

805

C2012X5R1A476M125AC

TDK

C7, C22, C23, C27, C29, C30, C33, C39, C42

9

1uF

CAP, CERM, 1µF, 25V,+/- 10%, X7R, AEC-Q200 Grade 1, 0603

603

CGA3E1X7R1E105K080AC

TDK

C10, C14, C15, C16, C17, C18, C21, C28, C37, C43, C45, C46, C47, C48, C51, C53

16

100pF

CAP, CERM, 100pF, 50V, +/- 5%, C0G/NP0, 0603

603

C0603C101J5GAC

Kemet

C24, C25, C34, C35, C40, C41

6

1000pF

CAP, CERM, 1000pF, 100V, +/- 5%, C0G/NP0, 0603

603

GRM1885C2A102JA01D

MuRata

C26, C59

2

0.1uF

CAP, CERM, 0.1uF, 25V, +/- 5%, X7R, 0603

603

C0603C104J3RACTU

Kemet

C50, C58

2

10uF

CAP, CERM, 10uF, 25V, +/- 10%, X7R, 1206_190

1206_190

C1206C106K3RACTU

Kemet

D1, D2

2

Green

LED, Green, SMD

LED_0805

APT2012LZGCK

Kingbright

D3, D4, D5, D6, D7, D9, D10, D11, D12, D13, D14, D19

12

11V

Diode, Zener, 11V, 550mW, SMB

SMB

1SMB5926BT3G

ON Semiconductor

F1, F2, F3, F4, F5, F6, F7, F8

8

Polymeric PTC Resettable Fuse 30V 200mA Ih Surface Mount 1206 (3216 Metric), Concave

1206

nanoASMDCH020F-2

Littelfuse

FID1, FID2, FID3

3

Fiducial mark. There is nothing to buy or mount.

N/A

N/A

N/A

H1, H2

2

ROUND STANDOFF M3 STEEL 5MM

ROUND STANDOFF M3 STEEL 5MM

9774050360R

Wurth Elektronik

H3, H4, H5, H6

4

Bumpon, Cylindrical, 0.312X 0.200, Black

Black Bumpon

SJ61A1

3M

H7, H8

2

Machine Screw Pan PHILLIPS M3

RM3X4MM 2701

APM HEXSEAL

J1, J2, J4, J9, J12, J14, J16, J17

8

Terminal Block, 3.5mm, 2x1, Tin, TH

Receptacle, 3.5mm, 2x1, TH

6.91214E+11

Wurth Elektronik

J10

1

Header, 100mil, 8x2, Gold, TH

8x2 Header

TSW-108-07G-D

Samtec

J11

1

Header(Shrouded), 19.7mil, 30x2, Gold, SMT

Header (Shrouded), 19.7mil, 30x2, SMT

QTH-030-01L-D-A

Samtec

JP1

1

Header, 100mil, 3x1, Gold, TH

3x1 Header

TSW-103-07G-S

Samtec

JP2, JP3

2

Header, 100mil, 2x1, Gold, TH

2x1 Header

TSW-102-07G-S

Samtec

K1, K2

2

Relay SSR 1mA 1.75V DC-IN 2A 60V AC/DC-OUT 4-Pin SOP Tube

SOP4

AQY232G3HS

Panasonic

R1, R57

2

6.65k

RES, 6.65k, 1%, 0.063W, AEC-Q200 Grade 0, 0402

402

CRCW04026K65FKED

Vishay-Dale

R2

1

0.1

RES, 0.1, 1%, 0.1W, AEC-Q200 Grade 0, 0603

603

ERJ-3RSFR10V

Panasonic

R3, R9, R38, R59, R65

5

0

RES, 0, 5%, 0.1W, AEC-Q200 Grade 0, 0603

603

CRCW06030000Z0EA

Vishay-Dale

R11, R13, R14, R17, R25, R31, R43, R55

8

249

RES, 249, 0.1%, 0.25W, 1206

1206

TNPW1206249RBEEA

Vishay-Dale

R12, R18, R19, R20, R21, R22, R24, R26, R29, R35, R44, R46, R47, R48, R49, R56

16

100

RES, 100, 0.1%, 0.1W, 0603

603

RG1608P-101B-T5

Susumu Co Ltd

R16, R53, R54

3

0

RES, 0, 5%, 0.25W, AEC-Q200 Grade 0, 1206

1206

ERJ-8GEY0R00V

Panasonic

R27, R40

2

340

RES, 340, 0.1%, 0.1W, 0603

603

RT0603BRD07340RL

Yageo America

R28, R30, R32, R37, R42, R45, R68

7

49.9

RES, 49.9, 0.5%, 0.1W, 0603

603

RT0603DRE0749R9L

Yageo America

R34, R36, R58

3

10.0k

RES, 10.0k, 1%, 0.1W, AEC-Q200 Grade 0, 0603

603

CRCW060310K0FKEA

Vishay-Dale

SH-J1, SH-J2, SH-J3

3

1x2

Shunt, 100mil, Flash Gold, Black

Closed Top 100mil Shunt

SPC02SYAN

Sullins Connector Solutions

TP1, TP2

2

Terminal, Turret, TH, Double

Keystone1593-2

1593-2

Keystone

U1

1

36V, 1A, 4.17μVRMS, RF Low-Dropout (LDO) Voltage Regulator, RGW0020A (VQFN-20)

RGW0020A

TPS7A4700RGWR

Texas Instruments

U10

1

Single Schmitt-Trigger Buffer, DCK0005A, SMALL T&R

DCK0005A

SN74LVC1G17DCKT

Texas Instruments

U12

1

ADS125H18V20IRHBR

VQFN36

ADS125H18V20IRHBR

Texas Instruments

U21

1

I2C BUS EEPROM (2-Wire), TSSOP-B8

TSSOP-8

BR24G32FVT-3AGE2

Rohm

C3, C4, C5, C6, C9, C13, C19, C20, C31, C36, C44, C49, C52, C54, C55, C56, C57, C62

0

0.01uF

CAP, CERM, 0.01uF, 100V, +/- 1%, C0G/NP0, 0805

805

C0805C103F1GACTU

Kemet

C8, C60, C61

0

10uF

CAP, CERM, 10uF, 25V, +/- 10%, X7R, 1206_190

1206_190

C1206C106K3RACTU

Kemet

C11

0

22uF

CAP, CERM, 22µF, 25V,+/- 10%, X7R, 1210

1210

CL32B226KAJNFNE

Samsung Electro-Mechanics

C12

0

1uF

CAP, CERM, 1µF, 25V,+/- 10%, X7R, AEC-Q200 Grade 1, 0603

603

CGA3E1X7R1E105K080AC

TDK

C32, C38

0

1000pF

CAP, CERM, 1000pF, 100V, +/- 5%, C0G/NP0, 0603

603

GRM1885C2A102JA01D

MuRata

D8

0

3V

Diode, Zener, 3V, 500mW, SOD-123

SOD-123

MMSZ4683T1G

ON Semiconductor

D15, D16, D17, D18

0

11V

Diode, Zener, 11V, 550mW, SMB

SMB

1SMB5926BT3G

ON Semiconductor

J3

0

Terminal Block, 3.5mm, 3x1, Tin, TH

Terminal Block, 3.5mm, 3x1, Tin, TH

6.91214E+11

Wurth Elektronik

J5, J6, J8, J13, J15

0

Header, 100mil, 1x1, Gold, TH

Header, 1x1, 2.54mm, TH

HTSW-101-09G-S

Samtec

J7

0

SMA Straight Jack, Gold, 50Ohm, TH

SMA Straight Jack, TH

901-144-8RFX

Amphenol RF

R4

0

0.047

RES, 0.047, 1%, 0.1W, AEC-Q200 Grade 1, 0603

603

ERJ-L03KF47MV

Panasonic

R5, R6, R7, R8, R23, R39, R62, R66

0

0

RES, 0, 5%, 0.1W, AEC-Q200 Grade 0, 0603

603

CRCW06030000Z0EA

Vishay-Dale

R10

0

120k

RES, 120k, 0.1%, 0.1W, 0603

603

RG1608P-124B-T5

Susumu Co Ltd

R33, R63

0

10.0k

RES, 10.0k, 1%, 0.1W, AEC-Q200 Grade 0, 0603

603

CRCW060310K0FKEA

Vishay-Dale

R41, R67

0

49.9

RES, 49.9, 0.5%, 0.1W, 0603

603

RT0603DRE0749R9L

Yageo America

R50, R51

0

249

RES, 249, 0.1%, 0.25W, 1206

1206

TNPW1206249RBEEA

Vishay-Dale

R60

0

0

RES, 0, 5%, 0.25W, AEC-Q200 Grade 0, 1206

1206

ERJ-8GEY0R00V

Panasonic

R64

0

11.3k

RES, 11.3k, 1%, 0.1W, 0603

603

RC0603FR-0711K3L

Yageo

U2, U3, U4, U5, U7, U8, U9, U11, U13, U14, U15, U16, U17, U18, U19, U20

0

33V Bidirectional Flat-Clamp Surge Protection Device, DRB0008A (VSON-8)

DRB0008A

TVS3301DRBR

Texas Instruments

U6

0

5ppm/C High-Precision Voltage Reference with Integrated High-Bandwidth Buffer, DGK0008A (VSSOP-8)

DGK0008A

REF6025IDGKR

Texas Instruments

U22

0

Single Output High PSRR LDO, 200mA, Adjustable -1.18 to -33V Output, -3 to -36V Input, with Ultra-Low Noise, 8-pin MSOP (DGN), -40 to 125 degC, Green (RoHS & no Sb/Br)

DGN0008D

TPS7A3001DGNR

Texas Instruments