Datasheet

www.ti.com
ADS1232
ADS1234
SBAS350F – JUNE 2005 – REVISED FEBRUARY 2008
Revision History
Changes from Revision E (October 2007) to Revision F ............................................................................................... Page
• Changed AVDD to deltaV in Common-Mode Rejection section in Electrical Characteristics table....................................... 3
• Changed AVDD to deltaV in Power-Supply Rejection section in Electrical Characteristics table ......................................... 3
Changes from Revision D (September 2007) to Revision E .......................................................................................... Page
• Corrected unit values in Electrical Characteristics table ........................................................................................................ 3
Changes from Revision C (June 2006) to Revision D .................................................................................................... Page
• Deleted Logic Level V
IH
row for CLKIN/XTAL test condition in Electrical Characteristics ..................................................... 3
• Added offset drift and gain drift histogram plots to Typical Characteristics (Figure 9 to Figure 16 ) ...................................... 9
• Changed difference voltage output for PGA = 2 from 323.4mV to 223.4mV in Temperature Sensor section .................... 13
• Added text to Voltage Reference Inputs section regarding reference and drift noise ......................................................... 14
• Changed Z
EFF
equation ........................................................................................................................................................ 15
• Changed Figure 28 ............................................................................................................................................................. 15
• Changed Figure 29 ............................................................................................................................................................. 15
• Deleted last sentence of Clock Sources section ................................................................................................................. 15
• Changed text in Settling Time section ................................................................................................................................. 17
• Changed Figure 32 ............................................................................................................................................................. 17
• Changed Figure 33 ............................................................................................................................................................. 17
• Deleted 2nd sentence of Serial Clock Input section ............................................................................................................ 18
• Added Power-Up Sequence section, with new text and two new figures (Figure 39 and Figure 40 ). ................................ 23
• Changed Figure 42 ............................................................................................................................................................. 25
• Changed Figure 43 ............................................................................................................................................................. 25
• Changed Figure 44 ............................................................................................................................................................. 26
• Changed Figure 45 ............................................................................................................................................................. 27
Changes from Revision B (September 2005) to Revision C .......................................................................................... Page
• Deleted last row from Absolute Maximum Ratings table. ...................................................................................................... 2
• Changed Analog Inputs section of Electrical Characteristics table ....................................................................................... 3
• Changed the typical value in last row of Voltage Reference Input section of Electrical Characteristics table ...................... 3
• Added footnote 1 to Table 1 , Table 2 , Table 3 , and Table 4 . ................................................................................................ 5
• Changed fourth sentence in Temperature Sensor section of Overview . ............................................................................. 13
• Added fifth and sixth sentences to Temperature Sensor section of Overview . ................................................................... 13
• Added fourth and fifth sentences to Low-Noise PGA section of Overview . ......................................................................... 14
• Changed Figure 27 . ............................................................................................................................................................. 14
• Changed t
11
to t
10
in third paragraph of Standby Mode section of Overview . ..................................................................... 21
• Changed min and max variables of t
10
row in table below Figure 37 . ................................................................................. 21
• Changed Figure 41 . ............................................................................................................................................................. 23
• Added last row and second footnote to table below Figure 41 ............................................................................................ 23
Copyright © 2005 – 2008, Texas Instruments Incorporated 29
Product Folder Link(s): ADS1232 ADS1234