Datasheet

www.ti.com Revision History
Table 7. ADS1146EVM/ADS1246EVM Bill of Materials (continued)
Item No. Qty Value Ref Des Description Vendor Part Number
24 1 10kΩ R1 Resistor, Thick Film Chip 10kΩ, Panasonic ERJ-3GEYJ103V
5%, 1/10W, Size = 0603
25 1 2kΩ R2 Resistor, Thick Film Chip 2kΩ, Panasonic ERJ-3EKF2001V
1%, 1/16W, Size = 0603
26 4 47Ω R3, R4, R7, R10 Resistor, Thick Film Chip 47Ω, Panasonic ERJ-3GEYJ470V
5%, 1/10W, Size = 0603
27 2 2.7kΩ R5, R6 Resistor, Thick Film Chip 2.7kΩ, Panasonic ERJ-3GEYJ272V
5%, 1/10W, Size = 0603
28 2 100kΩ R8, R13 Resistor, Thick Film Chip 100kΩ, Panasonic ERJ-3GEYJ104V
5%, 1/10W, Size = 0603
29 1 47kΩ R11 Resistor, Thick Film Chip 47kΩ, Panasonic ERJ-3GEYJ473V
5%, 1/10W, Size = 0603
30 2 0 R14, R15 Resistor, Thick Film Chip 0Ω, Panasonic ERJ-3GEY0R00V
5%, 1/10W, Size = 0603
31 2 470kΩ R9, R12 Resistor, Thick Film Chip 470kΩ, Panasonic ERJ-3GEYJ474V
5%, 1/10W, Size = 0603
32 1 S1 Switch, Mini Slide, SP3T NKK SS14MDP2
33 0 TP1, TP2, TP4 PCB Test Point, Mini Loop,
Through-Hole
34 1 TP3 PCB Test Point, Large Loop, Keystone 5011
Through-Hole Electronics
35 1 U1 Precision Voltage Reference, Texas Instruments REF5020ID
2.048V
36 1 U2 Precision Operational Amplifier Texas Instruments OPA227U
37 1 U3 Texas Instruments PCA9535RGE
16-Bit I
2
C I/O Expander
38 1 U4 Inverter, Single Gate Texas Instruments SN74AHCT1G04DBVR
39 1 U5 Buffer, Open Drain, Single Gate Texas Instruments SN74LVC1G07DBVRG4
40 1 U6 LDO Voltage Regulator, 2.5V, Texas Instruments TPS79225DBVRG4
100mA
41 1 U7 Single, 2-Line to 1 Data Texas Instruments SN74LVC2G157DCT
Selector/Multiplexer
42 0 U8 3.3 V Oscillator
43 1 U9 LDO Voltage Regulator, 2.5V, Texas Instruments TPS72325DBVTG4
200mA
44 1 U10 Precision Delta-Sigma ADC, Texas Instruments ADS1246IPW/ADS1146I
24-bit/16-bit PW
45 1 U11 EEPROM, 1.8V, 256k Microchip 24AA256-I/ST
46 1 U12 Supervisor, 2.64V Threshold Texas Instruments TPS3836L30DBVT
47 8 N/A Shorting Blocks Samtec SNT-100-BK-T
Revision History
Changes from A Revision (July, 2009) to B Revision .................................................................................................... Page
• Updated Table 3 .......................................................................................................................... 5
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
25
SBAU149B–June 2009–Revised May 2011 Revision History
Submit Documentation Feedback
Copyright © 2009–2011, Texas Instruments Incorporated