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Schematics and Layout

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8

Schematics and Layout

The schematic for the ADS833xEVM is appended to this user's guide. The bill of materials is provided in

Table 5

.

Figure 3

and

Figure 4

illustrate the PCB layout.

8.1

Bill of Materials

Table 5. Bill of Materials

ADS8331

ADS8332

Item No.

Qty

Qty

Ref Des

(1)

Description

Manufacturer

Part Number

1

0

0

C1, C2, C3, C4,

Not installed

C5, C6, C7, C8

2

5

5

C11, C18, C22,

Capacitor, ceramic 10UF 6.3V X5R 20%

TDK

C1608X5R0J106M

C25, C27

0603

3

3

3

C16, C23, C34

Capacitor, ceramic 10UF 10V X5R 10%

Murata

GRM219R61A106KE44D

0805

4

6

6

C12, C13, C15,

Capacitor, ceramic 0.1UF 16V 10% X7R

Murata

GRM188R71C104KA01D

C24, C28, C30

0603

5

2

2

C17, C31

Capacitor, ceramic 1.0UF 16V X5R 10%

TDK

C1608X5R1C105K

0603

6

1

1

C26

Capacitor, ceramic 1000PF 50V 5%

Murata

GRM1885C1H102JA01D

C0G 0603

7

2

2

C32, C33

Capacitor, tantalum 10UF 35V 20%

Kemet

B45196H6106M309

SMD

8

1

1

C35

Capacitor, tantalum 22UF 20V 10%

Kemet

T491C226K020AT

SMD

9

2

2

J1A, J2A (Top

10-pin, Dual row, SM header (20 Pos.)

Samtec

TSM-110-01-T-DV-P

Side)

10

2

2

J1B, J2B (Bottom

10-pin, Dual row, SM header (20 Pos.)

Samtec

SSW-110-22-F-D-VS-K

Side)

11

1

1

J3A (Top Side)

5-pin, Dual low, SM header (10 Pos.)

Samtec

TSM-105-01-T-DV-P

12

1

1

J3B (Bottom Side)

5-pin, Dual row, SM header (10 Pos.)

Samtec

SSW-105-22-F-D-VS-K

13

5

5

JP3, JP4, JP5,

Header strip, 3 pin (1x3)

Samtec

TSW-103-07-L-S

JP6, JP7

14

0

0

JP8

Not installed

15

2

2

JP9, JP12

Header strip, 2 pin (1x2)

Samtec

TSW-102-07-L-S

6

6

R1, R2, R3, R4,

Resistor, 0

Ω

1/10W 5% 0603 SMD

Panasonic

ERJ-3GEY0R00V

R15, R16

16

0

0

R5, R6, R7, R8

Not installed

0

4

Resistor, 0

Ω

1/10W 5% 0603 SMD

Panasonic

ERJ-3GEY0R00V

17

2

2

R13, R22

Resistor, .47

Ω

1/10W 5% 0603

Panasonic

ERJ-3RQJR47V

18

7

7

R14, R27, R28,

Resistor, 33

Ω

1/10W 5% 0603 SMD

Panasonic

ERJ-3GEYJ330V

R29, R33, R34,

R35

19

4

4

R17, R18, R25,

Resistor, 10k

Ω

1/10W 5% 0603 SMD

Yageo

RC0603JR-0710KL

R36

20

2

2

R19, R20

Resistor, 4.99k

Ω

1/10W 1% 0603 SMD

Panasonic

ERJ-3EKF4991V

21

1

1

R26

Resistor, 34.8

Ω

1/10W 1% 0603 SMD

Panasonic

ERJ-3EKF34R8V

22

0

0

R30, R31, R32

Not installed

23

1

1

S1

Switch, LT 6MM

Panasonic

EVQ-PHK03T

24

5

5

TP1, TP2, TP3,

Test point - Single .025 pin, red

Keystone

5000

TP7, TP10

25

2

2

TP11, TP12

Test point - Single .025 pin, black

Keystone

5001

26

1

1

U1

IC LDO pos-volt reg 5V 8-SOIC

Texas

TL750L05CDR

Instruments

27

3

3

U2

IC Op Amp GP R-R 80MHZ SGL 8SOIC

Texas

OPA211ID

Instruments

(1)

The following reference designators are not used:

C9, C10, C14, C19, C20, C21, C29, R9, R10, R11, R12, R21, R23, R24, TP4, TP5, TP6, TP8, TP9, JP1, JP2, JP10, JP11, U6

8

ADS833xEVM User

'

s Guide

SBAU176A

August 2010

Revised May 2011

Submit Documentation Feedback

Copyright

©

2010

2011, Texas Instruments Incorporated

Содержание ADS833 EVM Series

Страница 1: ...ADS8331 and ADS8332 Complete circuit descriptions schematic diagrams and bills of material are included in this document The following related documents are available for download through the Texas In...

Страница 2: ...of Materials 8 1 EVM Overview 1 1 Features ADS833xEVM Contains all support circuitry needed for the ADS8331 or ADS8332 Voltage reference options external or onboard Master clock options Internal osci...

Страница 3: ...samtec com or call 1 800 SAMTEC 9 for a variety of mating connector options The input pins on the ADS833xEVM are directly connected to the part with no filtering or protection It is important that app...

Страница 4: ...PIO1 Unused J2 7 FSX CS FS In None CS FS signal see jumper JP4 J2 8 GPIO2 Unused J2 9 FSR CS FS In None CS FS signal see jumper JP4 J2 10 DGND DGND In Out None Digital ground J2 11 DX DIN In None ADS8...

Страница 5: ...in an unknown state The digital voltage supply for the ADS833x is controlled by jumper JP7 By default the jumper is in the 1 2 position set to use the 5VD to power the ADC VBD supply The 3 3VD supply...

Страница 6: ...l eight of the analog input channels using a single op amp In the EVM design the OPA211 is used in a unity gain configuration in combination with a 34 8 and 750pf first order RC filter This configurat...

Страница 7: ...erence buffer By default JP5 is in the 1 2 position and JP12 is installed routing the reference voltage through the OPA350 and connecting it to the ADC reference If JP12 is removed and JP5 is in the 2...

Страница 8: ...om Side 5 pin Dual row SM header 10 Pos Samtec SSW 105 22 F D VS K 13 5 5 JP3 JP4 JP5 Header strip 3 pin 1x3 Samtec TSW 103 07 L S JP6 JP7 14 0 0 JP8 Not installed 15 2 2 JP9 JP12 Header strip 2 pin 1...

Страница 9: ...PS 8 Ch 24VQFN Texas ADS8332IBRGET Instruments 29 1 1 U4 IC EEPROM 256Kbit 400kHz 8SOIC Microchip 24AA256 I SN 30 1 1 U5 IC Precision V ref 4 096V LN 8 SOIC Texas REF5040AID Instruments 31 1 1 U7 IC O...

Страница 10: ...www ti com Figure 3 ADS833xEVM Top Layer Figure 4 ADS833xEVM Bottom Layer 10 ADS833xEVM User s Guide SBAU176A August 2010 Revised May 2011 Submit Documentation Feedback Copyright 2010 2011 Texas Inst...

Страница 11: ...2010 to A Revision Page Updated Table 3 5 NOTE Page numbers for previous revisions may differ from page numbers in the current version 11 SBAU176A August 2010 Revised May 2011 Revision History Submit...

Страница 12: ...2 NC 1 NC 7 NC 8 U5 REF5040 VA VCC_D 5VA C16 10uF R20 4 99k R19 4 99k VCC_D JP4 C22 10uF C17 1uF VA C13 0 1uF R14 33 R13 0 5 TOUT R17 10K Ch0_FLT R2 0 C2 DNI Ch1_FLT REF RESET S1 PUSHBUTTON TP2 R4 0...

Страница 13: ...roduct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engin...

Страница 14: ...orized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parti...

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