參數(shù)資料
型號(hào)： THS1009CDARG4
廠商： Texas Instruments, Inc.
英文描述： 10-BIT, 2 ANALOG INPUT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER
中文描述： 10位，2個(gè)模擬輸入，8 MSPS的同步采樣模擬數(shù)字轉(zhuǎn)換器
文件頁數(shù)： 16/31頁
文件大?。?/td> 235K
代理商： THS1009CDARG4
SLAS287A
–
AUGUST 2000
–
REVISED DECEMBER 2002
www.ti.com
16
DIGITAL OUTPUT DATA FORMAT
The digital output data format of the THS1009 can either be in binary format or in twos complement format. The
following tables list the digital outputs for the analog input voltages.
Table 2. 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
3FFh
200h
000h
Table 3. 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
1FFh
000h
200h
Table 4. 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
3FFh
200h
000h
Table 5. Twos Complement Output Format for Differential Configuration
DIFFERENTIAL, BINARY OUTPUT
ANALOG INPUT VOLTAGE
Vin = AINP
–
AINM
VREF = VREFP
–
VREFM
Vin = VREF
Vin = 0
Vin =
–
VREF
DIGITAL OUTPUT CODE
1FFh
000h
200h
ADC CONTROL REGISTER
The THS1009 contains two 10-bit wide control registers (CR0, CR1) in order to program the device into the desired
mode. The bit definitions of both control registers are shown in Table 6.
Table 6. Bit Definitions of Control Register CR0 and CR1
REG
CR0
BIT 9
TEST1
BIT 8
TEST0
BIT 7
SCAN
BIT 6
DIFF1
BIT 5
DIFF0
BIT 4
CHSEL1
BIT 3
CHSEL0
BIT 2
PD
BIT 1
RES
BIT 0
VREF
CR1
RESERVED
OFFSET
BIN/2
’
s
R/W
RES
RES
RES
RES
SRST
RESET
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THS1009IDAR 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT, 2 ANALOG INPUT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER
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