參數(shù)資料
型號： ADS1241E/1K
廠商： Texas Instruments
文件頁數(shù)： 10/30頁
文件大?。?/td> 0K
描述： IC ADC 24-BIT SER PROGBL 28-SSOP
產品培訓模塊： Data Converter Basics
視頻文件： Nuts and Bolts of the Delta-Sigma Converter
標準包裝： 1
位數(shù)： 24
采樣率（每秒）： 15
數(shù)據(jù)接口： 串行，SPI?
轉換器數(shù)目： 1
功率耗散（最大）： 1.9mW
電壓電源： 模擬和數(shù)字
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 28-SSOP（0.209"，5.30mm 寬）
供應商設備封裝： 28-SSOP
包裝： 標準包裝
輸入數(shù)目和類型： 8 個單端，單極；4 個差分，單極
其它名稱： 296-25895-6
ADS1240, 1241
18
SBAS173F
www.ti.com
RDATA–Read Data
Description: Read the most recent conversion result from the
Data Output Register (DOR). This is a 24-bit value.
Operands:
None
Bytes:
1
Encoding:
0000 0001
Data Transfer Sequence:
RDATAC–Read Data Continuous
Description: Read Data Continuous mode enables the con-
tinuous output of new data on each DRDY. This command
eliminates the need to send the Read Data Command on each
DRDY. This mode may be terminated by either the STOPC
command or the RESET command. Wait at least 10 fOSC after
DRDY falls before reading.
Operands:
None
Bytes:
1
Encoding:
0000 0011
Data Transfer Sequence:
Command terminated when “uuuu uuuu” equals STOPC or
RESET.
D
IN
0000 0001
(1)
xxxx xxxx
D
OUT
NOTE: (1) For wait time, refer to timing specification.
MSB
Mid-Byte
LSB
D
IN
0000 0011
(1)
uuuu uuuu
D
OUT
MSB
Mid-Byte
LSB
D
OUT
MSB
Mid-Byte
LSB
DRDY
NOTE: (1) For wait time, refer to timing specification.
COMMANDS
DESCRIPTION
OP CODE
2nd COMMAND BYTE
RDATA
Read Data
0000 0001 (01H)
—
RDATAC
Read Data Continuously
0000 0011 (03H)
—
STOPC
Stop Read Data Continuously
0000 1111 (0FH)
—
RREG
Read from REG “rrrr”
0001 rrrr (1xH)
xxxx_nnnn (# of regs-1)
WREG
Write to REG “rrrr”
0101 rrrr (5xH)
xxxx_nnnn (# of regs-1)
SELFCAL
Offset and Gain Self Cal
1111 0000 (F0H)
—
SELFOCAL
Self Offset Cal
1111 0001 (F1H)
—
SELFGCAL
Self Gain Cal
1111 0010 (F2H)
—
SYSOCAL
Sys Offset Cal
1111 0011 (F3H)
—
SYSGCAL
Sys GainCal
1111 0100 (F4H)
—
WAKEUP
Wakup from SLEEP Mode
1111 1011 (FBH)
—
DSYNC
Sync DRDY
1111 1100 (FCH)
—
SLEEP
Put in SLEEP Mode
1111 1101 (FDH)
—
RESET
Reset to Power-Up Values
1111 1110 (FEH)
—
NOTE: The received data format is always MSB First; the data out format is set by the BIT ORDER bit in the ACR register.
TABLE IV. Command Summary.
The commands listed in Table IV control the operations of
the ADS1240 and ADS1241. Some of the commands are
stand-alone commands (e.g., RESET) while others require
additional bytes (e.g., WREG requires the count and data
bytes).
Operands:
n = count (0 to 127)
r = register (0 to 15)
x = don’t care
ADS1240 AND ADS1241 CONTROL COMMAND DEFINITIONS
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