Texas Instruments ADS1281EVM, User Manual, Page: 25 / 37

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Schematics and Layout
12 Schematics and Layout
Schematics for the ADS1281EVM are appended to this user's guide. The bill of materials is provided in
Table 4 .
12.1 Bill of Materials
NOTE: All components should be compliant with the European Union Restriction on Use of
Hazardous Substances (RoHS) Directive. Some part numbers may be either leaded or
RoHS. Verify that purchased components are RoHS-compliant. (For more information about
TI's position on RoHS compliance, see the
Quality and Eco-Info information on the TI web
site .)
Table 4. Bill of Materials
Item No. Qty Value Ref Des Description Vendor Part Number
1 2 0 R4, R5 Resistor, Thick Film Chip 0 Ω , 5%, Panasonic ERJ-3GEY0R00V
1/10W, Size = 0603
2 5 47 R3, R6 to R9 Resistor, Thick Film Chip 47 Ω , 5%, Panasonic ERJ-3GEYJ470V
1/10W, Size = 0603
Not 2 47 R10, R11 Resistor, Thick Film Chip 47 Ω , 5%, Panasonic ERJ-3GEYJ470V
Installed 1/10W, Size = 0603
3 4 1k R16 to R19 Resistor, Thick Film Chip 1k Ω , 1%, Panasonic ERJ-3EKF1001V
1/16W, Size = 0603
Not 4 1k R20 to R23 Resistor, Thick Film Chip 1k
Ω
, 1%, Panasonic ERJ-3EKF1001V
Installed 1/16W, Size = 0603
4 1 2k R2 Resistor, Thick Film Chip 2k Ω , 1%, Panasonic ERJ-3EKF2001V
1/16W, Size = 0603
5 1 10k R1 Resistor, Thick Film Chip 10k Ω , 5%, Panasonic ERJ-3GEYJ103V
1/10W, Size = 0603
6 1 47k R24 Resistor, Thick Film Chip 47k Ω , 5%, Panasonic ERJ-3GEYJ473V
1/10W, Size = 0603
7 5 100k R12, R14, R15, R27, Resistor, Thick Film Chip 100k Ω , 5%, Panasonic ERJ-3GEYJ104V
R28 1/10W, Size = 0603
Not 1 100k R13 Resistor, Thick Film Chip 100k Ω , 5%, Panasonic ERJ-3GEYJ104V
Installed 1/10W, Size = 0603
8 2 470k R25, R26 Resistor, Thick Film Chip 470k Ω , 5%, Panasonic ERJ-3GEYJ474V
1/10W, Size = 0603
9 2 100k RA1, RA2 Resistor, 8 Thick Film Chip Array CTS 745C101104JPTR
100k Ω , 5%, 63mW
Not 1 100k RA3 Resistor, Chip Array 4 Independent Bus CTS 741C083104JP
Installed 100k Ω , 5%, 1/16W, SMD
10 3 1nF C11, C12, C21 Capacitor, C0G Ceramic 1nF ± 5%, TDK C1608C0G1H102JT
50WV, Size = 0603
Not 3 1nF C13, C14, C22 Capacitor, C0G Ceramic 1nF
±
5%, TDK C1608C0G1H102JT
Installed 50WV, Size = 0603
11 1 10nF C32 Capacitor, C0G Ceramic 10nF ± 5%, TDK C1608C0G1E103JT
25WV, Size = 0603
Not 1 10nF C27 Capacitor, C0G Ceramic 10nF ± 5%, TDK C1608C0G1E103JT
Installed 25WV, Size = 0603
12 7 0.1 μ F C4, C5, C7, C28, C29, Capacitor, X7R Ceramic 0.1 μ F ± 10%, TDK C1608X7R1E104KT
C35, C36 25WV, Size = 0603
13 1 0.15 μ F C6 Capacitor, X7R Ceramic 0.15 μ F ± 10%, TDK C1608X7R1E154KT
25WV, Size = 0603
14 6 1 μ F C1, C10, C25, C26, Capacitor, X7R Ceramic 1 μ F ± 10%, TDK C1608X7R1C105KT
C33, C34 16WV, Size = 0603
15 2 1 μ F C8, C9 Capacitor, X7R Ceramic 1 μ F ± 10%, TDK C3216X7R1H105KT
50WV, Size = 1206
16 1 10 μ F C17 Capacitor, X5R Ceramic 10 μ F ± 20%, TDK C2012X5R0J106MT
6.3WV, Size = 0805
Not 1 10 μ F C20 Capacitor, X5R Ceramic 10 μ F ± 20%, TDK C2012X5R0J106MT
Installed 6.3WV, Size = 0805
25 SBAU143C – March 2009 – Revised May 2011 ADS1281EVM and ADS1281EVM-PDK User ' s Guide
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