參數(shù)資料
型號： ADS7953SBRHBT
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 16-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQCC32
封裝： GREEN, PLASTIC, PQFP-32
文件頁數(shù)： 25/63頁
文件大小： 1734K
代理商： ADS7953SBRHBT
www.ti.com
SLAS605A – JUNE 2008 – REVISED JANUARY 2010
Table 2. Mode Control Register Settings for Auto-1 Mode
DESCRIPTION
RESET
BITS
LOGIC
STATE
FUNCTION
STATE
DI15-12
0001
0010
Selects Auto-1 Mode
DI11
0
1
Enables programming of bits DI10-00.
0
Device retains values of DI10-00 from previous frame.
DI10
0
1
The channel counter is reset to the lowest programmed channel in the Auto-1 Program Register
0
The channel counter increments every conversion (No reset)
DI09-07
000
xxx
Do not care
DI06
0
Selects 2.5V i/p range (Range 1)
1
Selects 5V i/p range (Range 2)
DI05
0
Device normal operation (no powerdown)
1
Device powers down on the 16th SCLK falling edge
DI04
0
SDO outputs current channel address of the channel on DO15..12 followed by 12-bit conversion
0
result on DO11..00.
1
GPIO3-GPIO0 data (both input and output) is mapped onto DO15-DO12 in the order shown below.
Lower data bits DO11-DO00 represent 12-bit conversion result of the current channel.
DO15
DO14
DO13
DO12
GPIO3(1)
GPIO2(1)
GPIO1(1)
GPIO0(1)
DI03-00
0000
GPIO data for the channels configured as output. Device will ignore the data for the channel which is configured
as input. SDI bit and corresponding GPIO information is given below
DI03
DI02
DI01
DI00
GPIO3(2)
GPIO2(2)
GPIO1(2)
GPIO0(2)
(1)
GPIO 1 to 3 are available only in TSSOP packaged devices. QFN device offers GPIO 0 only.
(2)
GPIO 1 to 3 are available only in TSSOP packaged devices. QFN device offers GPIO 0 only.
Copyright 2008–2010, Texas Instruments Incorporated
31
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