THS12082 Datasheet, PDF (12/38 Pages) Texas Instruments – 12-BIT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTERS

THS12082
12-BIT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTERS
SLAS271 – MAY 2000
digital output data format
The digital output data format of the THS12082 can be in either binary format or in twos complement format.
The following tables list the digital outputs for the analog input voltages.
Table 3. Binary Output Format for Single-Ended Configuration
SINGLE-ENDED, BINARY OUTPUT
ANALOG INPUT VOLTAGE
DIGITAL OUTPUT CODE
AIN = VREFP
AIN = (VREFP + VREFM)/2
AIN = VREFM
FFFh
800h
000h
Table 4. Twos Complement Output Format for Single-Ended Configuration
SINGLE-ENDED, TWOS COMPLEMENT
ANALOG INPUT VOLTAGE
DIGITAL OUTPUT CODE
AIN = VREFP
AIN = (VREFP + VREFM)/2
AIN = VREFM
7FFh
000h
800h
Table 5. Binary Output Format for Differential Configuration
DIFFERENTIAL, BINARY OUTPUT
ANALOG INPUT VOLTAGE
DIGITAL OUTPUT CODE
Vin = AINP – AINM
VREF = VREFP – VREFM
Vin = VREF
Vin = 0
Vin = –VREF
FFFh
800h
000h
Table 6. Twos Complement Output Format for Differential Configuration
DIFFERENTIAL, BINARY OUTPUT
ANALOG INPUT VOLTAGE
DIGITAL OUTPUT CODE
Vin = AINP – AINM
VREF = VREFP – VREFM
Vin = VREF
Vin = 0
Vin = –VREF
7FFh
000h
800h
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