参数资料
型号: THS1007CDA
厂商: TEXAS INSTRUMENTS INC
元件分类: ADC
英文描述: 4-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
封装: GREEN, PLASTIC, TSSOP-32
文件页数: 17/34页
文件大小: 364K
代理商: THS1007CDA
THS1007
SLAS286B AUGUST 2000 REVISED DECEMBER 2010
www.ti.com
24
Test Mode
The test mode of the ADC is selected via bit 8 and bit 9 of control register 0. The different selections are shown
Table 10. Test Mode
BIT 9
TEST1
BIT 8
TEST0
OUTPUT RESULT
0
Normal mode
0
1
VREFP
1
0
((VREFM)+(VREFP))/2
1
VREFM
Three different options can be selected. This feature allows support testing of hardware connections between
the ADC and the processor.
Control Register 1, Write Only (see Table 7)
BIT 11
BIT10
BIT 9
BIT 8
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
0
1
RESERVED
OFFSET
BIN/2s
R/W
RES
SRST
RESET
Table 11. Control Register 1 Bit Functions
BITS
RESET
VALUE
NAME
FUNCTION
0
RESET
Reset
Writing a 1 into this bit resets the device and sets the control register 0 and control register 1 to the reset values.
To bring the device out of RESET, a 0 has to be written into this bit.
1
0
SRST
Writing a 1 into this bit resets the sync generator. When running in multichannel mode, this must be set during the
configuration cycle.
2, 3
0,0
RES
Reserved
4
1
RES
Reserved
5
1
RES
Reserved
6
0
R/W
R/W, RD/WR selection
Bit 6 of control register 1 controls the function of the inputs RD and WR. Whenbit 6 in control register 1 is set to
1, WR becomes a R/W input and RD is disabled. From now on a read is signalled with R/W high and a write with
R/W as a low signal. If bit 6 in control register 1 is set to 0, the input RD becomes a read input and the input WR
becomes a write input.
7
0
BIN/2s
Complement select
If bit 7 of control register 1 is set to 0, the output value of the ADC is in twos complement. If bit 7 of
control register 1 is set to 1, the output value of the ADC is in binary format. Refer to Table 2 through Table 5.
8
0
OFFSET
Offset cancellation mode
Bit 8 = 0 → normal conversion mode
Bit 8 = 1 → offset calibration mode
If a 1 is written into bit 8 of control register 1, the device internally sets the inputs to zero and does a conver-
sion. The conversion result is stored in an offset register and subtracted from all conversions in order to
reduce the offset error.
9
0
RESERVED Always write 0.
相关PDF资料
PDF描述
THS1007CDAR 4-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
THS1007CDAG4 4-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
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THS1007CDAR 制造商:TI 制造商全称:Texas Instruments 功能描述:10-BIT, 4 ANALOG INPUT, 6-MSPS, SIMULATANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER
THS1007IDA 功能描述:模数转换器 - ADC 10 BIT QUAD ADC w/o RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
THS1007IDAG4 功能描述:模数转换器 - ADC 10-Bit 6MSPS Simult Sampling Quad Ch RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
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