SBAU435 February   2024 ADS127L18

 

  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 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1  EVM Analog Input Options
    2. 2.2  Power Requirements
    3. 2.3  ADC Connections and Decoupling
    4. 2.4  ADC Input Amplifiers
    5. 2.5  VCOM Buffer
    6. 2.6  Voltage Reference
    7. 2.7  Reference Buffer
    8. 2.8  Clock Tree
    9. 2.9  Serial Interface
    10. 2.10 EEPROM
    11. 2.11 Power Supplies
    12. 2.12 Low Dropout Regulator (LDO)
  9. 3Software
    1. 3.1 Software Description
    2. 3.2 ADS127L18 EVM Software Installation
  10. 4Implementation Results
    1. 4.1 EVM Operation
      1. 4.1.1 Evaluation Setup
      2. 4.1.2 Optional EVM Connections
      3. 4.1.3 EVM Register Settings
      4. 4.1.4 ADC Capture Settings
        1. 4.1.4.1 ADC Configuration
        2. 4.1.4.2 Clocking Configuration
        3. 4.1.4.3 SPI and Data Port Configuration
        4. 4.1.4.4 Filter Configuration
        5. 4.1.4.5 Channel Configuration
      5. 4.1.5 Time Domain Display
      6. 4.1.6 Spectral Analysis Display
      7. 4.1.7 Histogram Analysis Display
  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. 7Related Documentation
    1. 7.1 Supplemental Content

Bill of Materials (BOM)

Table 5-1 Bill of Materials
DesignatorQuantityValueDescriptionPackage ReferencePart NumberManufacturer

!PCB1

1

Printed Circuit Board

DC268

Any

C1, C9, C29, C33, C89, C90, C91, C92, C93, C94, C95, C96, C97, C98, C99, C100, C101, C102, C103, C104, C105, C106, C107, C108

24

0.1uF

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

0603

C0603C104J3RACTU

Kemet

C3, C4, C5, C6, C7, C8, C10, C11, C37, C43, C49, C55, C61, C67, C73, C79

16

10uF

CAP, CERM, 10uF, 10V, +/- 20%, X7R, 0603

0603

GRM188Z71A106MA73D

MuRata

C12, C17, C19, C20

4

10uF

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

1206_190

C1206C106K3RACTU

Kemet

C13, C14

2

10uF

CAP, AL, 10μF, 35V, +/- 20%, 0.76 ohm, SMD

5x5.8

UUD1V100MCL1GS

Nichicon

C15, C22

2

1uF

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

0603

C0603C105K3RACTU

Kemet

C16, C23

2

22uF

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

1210

CL32B226KAJNFNE

Samsung Electro-Mechanics

C18, C21, C30

3

0.01uF

CAP, CERM, 0.01µF, 25V,+/- 1%, C0G/NP0, 0603

0603

C0603C103F3GACTU

Kemet

C24, C26, C32

3

10uF

CAP, CERM, 10µF, 10V,+/- 10%, X7R, 0805

0805

GRM21BR71A106KA73L

MuRata

C25, C27, C36

3

47uF

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

0805

C2012X5R1A476M125AC

TDK

C28, C31, C35, C42, C48, C54, C60, C66, C72, C78, C84

11

1uF

CAP, CERM, 1µF, 16V,+/- 10%, X7R, AEC-Q200 Grade 1, 0603

0603

CGA3E1X7R1C105K080AC

TDK

C34

1

0.033uF

CAP, CERM, 0.033µF, 50V,+/- 5%, C0G/NP0, AEC-Q200 Grade 1, 0805

0805

CGA4J2C0G1H333J125AA

TDK

C38, C41, C44, C47, C50, C53, C56, C59, C62, C65, C68, C71, C74, C77, C80, C83

16

220pF

CAP, CERM, 220pF, 50V, +/- 1%, C0G/NP0, 0603

0603

06035A221FAT2A

AVX

C40, C46, C52, C58, C64, C70, C76, C82

8

2200pF

CAP, CERM, 2200pF, 50V, +/- 5%, C0G/NP0, 0603

0603

GRM1885C1H222JA01D

MuRata

D1, D2, D3

3

30V

Diode, Schottky, 30V, 5A, SOD-128

SOD-128

PMEG3050EP,115

Nexperia

D4, D5

2

Green

LED, Green, SMD

LED_0805

APT2012LZGCK

Kingbright

H1, H2

2

Machine Screw Pan PHILLIPS M3

RM3X4MM 2701

APM HEXSEAL

H3, H4, H5, H6, H9, H10

6

Bumpon, Hemisphere, 0.44 X 0.20, Clear

Transparent Bumpon

SJ-5303 (CLEAR)

3M

H7, H8

2

ROUND STANDOFF M3 STEEL 5MM

ROUND STANDOFF M3 STEEL 5MM

9774050360R

Wurth Elektronik

J1

1

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

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

QTH-030-01-L-D-A

Samtec

J2, J8, J9, J11, J12, J14, J15, J17, J18, J20, J21, J23, J24, J26, J27, J29, J30, J32

18

SMA Connector Jack, Female Socket 50Ohm Through Hole Solder

CONN_SMA_PTH

6.0312E+13

Wurth Electronics

J3

1

Header, 100mil, 10x2, Gold, TH

10x2 Header

TSW-110-07-G-D

Samtec

J4

1

Header, 100mil, 6x2, Gold, TH

6x2 Header

TSW-106-07-G-D

Samtec

J5

1

Header, 100mil, 4x2, Gold, TH

4x2 Header

TSW-104-07-G-D

Samtec

J6

1

Connector, DC Jack 2.1X5.5 mm, TH

POWER JACK, 14.4x11x9mm

PJ-102A

CUI Inc.

J7

1

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

Terminal Block, 3.5mm, 3x1, TH

393570003

Molex

JP1, JP2

2

Header, 100mil, 3x1, Gold, TH

3x1 Header

TSW-103-07-G-S

Samtec

R1, R3, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30, R32, R33, R34, R35, R36, R37, R38, R39

22

10

RES, 10.0, 1%, 0.25 W, AEC-Q200 Grade 0, 0603

0603

CRCW060310R0FKEAHP

Vishay-Dale

R2, R4, R10, R11, R12, R13, R14, R15, R16, R17, R18, R41, R51, R184, R185, R186, R187, R188, R189, R190, R191, R192, R193, R198

24

100k

RES, 100 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW0603100KFKEA

Vishay-Dale

R5, R6, R7, R40, R82, R89, R95, R102, R108, R115, R121, R128, R134, R141, R147, R154, R160, R167, R173, R180, R199

21

0

RES, 0, 5%, 0.125 W, 0805

0805

RC0805JR-070RL

Yageo America

R8, R45, R48, R59, R62, R79

6

0

RES, 0, 5%, 0.1 W, 0603

0603

RC0603JR-070RL

Yageo

R31, R42, R54, R201

4

10.0k

RES, 10.0 k, 1%, 0.1 W, 0603

0603

RC0603FR-0710KL

Yageo

R43, R53

2

0.1

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

0603

ERJ-L03KF10CV

Panasonic

R52

1

11.3k

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

0603

RC0603FR-0711K3L

Yageo

R64, R65

2

0.047

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

0603

ERJ-L03KF47MV

Panasonic

R66

1

120k

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

0603

RG1608P-124-B-T5

Susumu Co Ltd

R67, R68, R76, R78, R81, R83, R90, R91, R94, R96, R103, R104, R107, R109, R116, R117, R120, R122, R129, R130, R133, R135, R142, R143, R146, R148, R155, R156, R159, R161, R168, R169, R172, R174, R181, R182

36

1.00k

RES, 1.00 k, 0.1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

ERA3AEB102V

Panasonic

R69, R77, R85, R98, R111, R124, R137, R150, R163, R176

10

1.00k

RES, 1.00 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW06031K00FKEA

Vishay-Dale

R70

1

30.0k

RES, 30.0 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

ERJ-3EKF3002V

Panasonic

R71

1

37.4

RES, 37.4, 1%, 0.1 W, 0603

0603

RC0603FR-0737R4L

Yageo

R73

1

4.99k

RES, 4.99 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW06034K99FKEA

Vishay-Dale

R74

1

7.5

RES, 7.50, 1%, 0.1 W, 0603

0603

RC0603FR-077R5L

Yageo

R84, R88, R97, R101, R110, R114, R123, R127, R136, R140, R149, R153, R162, R166, R175, R179

16

22

RES, 22.0, 0.1%, 0.063 W, 0603

0603

CPF0603B22RE1

TE Connectivity

R86, R87, R99, R100, R112, R113, R125, R126, R138, R139, R151, R152, R164, R165, R177, R178

16

15

RES, 15.0, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW060315R0FKEA

Vishay-Dale

SH-J1, SH-J2

2

1x2

Shunt, 100mil, Flash Gold, Black

Closed Top 100mil Shunt

SPC02SYAN

Sullins Connector Solutions

TP3, TP4

2

Terminal, Turret, TH, Double

Keystone1573-2

1573-2

Keystone

U1

1

512 kSPS, Quad/Octal, Simultaneous Sampling, 24-Bit, Delta-Sigma ADC

VQFN56

ADS127L18IRSHR

Texas Instruments

U2

1

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

TSSOP-8

BR24G32FVT-3AGE2

Rohm

U3, U5

2

36V, 1A, 4.17-μVRMS, RF low-dropout (LDO) voltage regulator 20-VQFN -40 to 125

VQFN20

TPS7A4700RGWR

Texas Instruments

U4

1

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

DGN0008D

TPS7A3001DGNR

Texas Instruments

U6

1

High-Precision Voltage Reference with Integrated High-Bandwidth Buffer, DGK0008A (VSSOP-8)

DGK0008A

REF6225IDGKR

Texas Instruments

U8

1

2.2nV/√Hz, low-power, 36V operational amplifier 5-SOT-23 -40 to 125

SOT23-5

OPA210IDBVR

Texas Instruments

U9

1

1.1nV/rtHz Noise, Low-Power, Precision Operational Amplifier, DGK0008A (VSSOP-8)

DGK0008A

OPA211IDGKR

Texas Instruments

U10, U11, U12, U13, U14, U15, U16, U17

8

Low Noise, Precision, 150MHz, Fully Differential Amplifier, DGK0008A (VSSOP-8)

DGK0008A

THS4551IDGKR

Texas Instruments

Y1

1

High-Performance BAW Oscillator 25.6MHz, 1.8V LVCMOS Output

VSON4

LMK6CE02560DDLFR

Texas Instruments