TEXAS INSTRUMENTS Data acquisition IC - AD converter (ADC) External TSSOP 30 : Datasheet : Page 44

ADS7950, ADS7951, ADS7952, ADS7953

ADS7954, ADS7955, ADS7956, ADS7957

ADS7958, ADS7959, ADS7960, ADS7961

SLAS605A –JUNE 2008–REVISED JANUARY 2010

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REVISION HISTORY

Changes from Original (June 2008) to Revision A Page

• Added QFN information to Features ..................................................................................................................................... 1

• Added QFN information to Description ................................................................................................................................. 1

• Added QFN information to 12-bit ordering information ......................................................................................................... 3

• Added QFN information to 10-bit ordering information ......................................................................................................... 3

• Added QFN information to 8-bit ordering information ........................................................................................................... 4

• Changed thermal impedance for DBT package in absolute maximum ratings .................................................................... 4

• Changed thermal impedance for RHB package in absolute maximum ratings .................................................................... 4

• Changed thermal impedance for RGE package in absolute maximum ratings .................................................................... 4

• Added V

ref

= 2.5 V ± 0.1 V to ELECTRICAL CHARACTERISTICS, ADS7950/51/52/53 ..................................................... 5

• Added while 2Vref ≤ +VA to full-scale input span range 2 test conditions ........................................................................... 5

• Added Total unadjusted error (TUE) specification ................................................................................................................ 5

• Changed reference voltage at REFP min and max values .................................................................................................. 6

• Added V

ref

= 2.5 V ± 0.1 V to ELECTRICAL CHARACTERISTICS, ADS7950/51/52/53 ..................................................... 6

• Added Note to ELECTRICAL CHARACTERISTICS, ADS7950/51/52/53 ............................................................................ 6

• Added V

ref

= 2.5 V ± 0.1 V to ELECTRICAL CHARACTERISTICS, ADS7954/55/56/57 test conditions ............................. 6

• Added while 2Vref ≤ +VA to full-scale input span range 2 test conditions ........................................................................... 6

• Added V

ref

= 2.5 V ± 0.1 V to ELECTRICAL CHARACTERISTICS, ADS7954/55/56/57 test conditions ............................. 7

• Changed V

ref

reference voltage at REFP min value from 2.49 V to 2.0 V ........................................................................... 7

• Changed V

ref

reference voltage at REFP max value from 2.51 V to 3.0 V .......................................................................... 7

• Added V

ref

= 2.5 V ± 0.1 V to ELECTRICAL CHARACTERISTICS, ADS7954/55/56/57 test conditions ............................. 8

• Added V

ref

= 2.5 V ± 0.1 V to ELECTRICAL CHARACTERISTICS, ADS7958/59/60/61 test conditions ............................. 8

• Added while 2Vref ≤ +VA to full-scale input span range 2 test conditions ........................................................................... 8

• Changed V

ref

reference voltage at REFP min value from 2.49 V to 2.0 V ........................................................................... 9

• Changed V

ref

reference voltage at REFP max value from 2.51 V to 3.0 V .......................................................................... 9

• Added V

ref

= 2.5 V ± 0.1 V to ELECTRICAL CHARACTERISTICS, ADS7958/59/60/61 test conditions ............................. 9

• Changed t

su1

values from max to min ................................................................................................................................. 10

• Changed t

su2

values from max to min ................................................................................................................................. 10

• Changed VEE to AGND and VCC to +VA on 38-pin TSSOP pinout ................................................................................. 11

• Added QFN pinout .............................................................................................................................................................. 11

• Added QFN pinout .............................................................................................................................................................. 12

• Added terminal functions for QFN packages ...................................................................................................................... 14

• Changed ADS7950/4/8 QFN package MXO pin from 7 to 3 .............................................................................................. 14

• Added TOTAL UNADJUSTED ERROR (TUE Max) graph ................................................................................................. 21

• Added TOTAL UNADJUSTED ERROR (TUE Min) graph .................................................................................................. 21

• Changed GPIO pins description ......................................................................................................................................... 23

• Added device powerdown through GPIO in the case of the TSSOP packaged devices ................................................... 25

• Added note to Table 1 ........................................................................................................................................................ 29

Product Folder Link(s): ADS7950, ADS7951, ADS7952, ADS7953 ADS7954, ADS7955, ADS7956, ADS7957 ADS7958,

ADS7959, ADS7960, ADS7961