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参数资料
型号： ADS1217
英文描述： 8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER
中文描述： 8通道，24位模拟数字转换器
文件页数： 16/28页
文件大小： 458K
代理商： ADS1217
ADS1217
SBAS260B
16
www.ti.com
DETAILED REGISTER DEFINITIONS
SETUP
(Address 00
H
) Setup Register
Reset Value = iii01110
bit 7-5
bit 4
Factory Programmed Bits
SPEED: Modulator Clock Speed
0 : f
MOD
= f
OSC
/128 (default)
1 : f
MOD
= f
OSC
/256
REF EN: Internal Voltage Reference Enable
0 = Internal Voltage Reference Disabled
1 = Internal Voltage Reference Enabled (default)
REF HI: Internal Reference Voltage Select
0 = Internal Reference Voltage = 1.25V
1 = Internal Reference Voltage = 2.5V (default)
BUF EN: Buffer Enable
0 = Buffer Disabled
1 = Buffer Enabled (default)
BIT ORDER: Set Order Bits are Transmitted
0 = Most Significant Bit Transmitted First (default)
1 = Least Significant Bit Transmitted First
Data is always shifted into the part most significant
bit first. Data is always shifted out of the part most
significant byte first. This configuration bit only con-
trols the bit order within the byte of data that is
shifted out.
bit 3
bit 2
bit 1
bit 0
ADDRESS
REGISTER
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
00
H
01
H
02
H
03
H
04
H
05
H
06
H
07
H
08
H
09
H
0A
H
0B
H
0C
H
0D
H
0E
H
0F
H
SETUP
MUX
ACR
IDAC1
IDAC2
ODAC
DIO
DIR
DEC0
M/DEC1
OCR0
OCR1
OCR2
FSR0
FSR1
FSR2
ID
ID
ID
SPEED
PSEL0
IDAC1R1
IDAC1_4
IDAC2_4
OSET_4
DIO_4
DIR_4
DEC04
SMODE0
OCR04
OCR12
OCR20
FSR04
FSR12
FSR20
REF EN
NSEL3
IDAC1R0
IDAC1_3
IDAC2_3
OSET_3
DIO_3
DIR_3
DEC03
Reserved
OCR03
OCR11
OCR19
FSR03
FSR11
FSR19
REF HI
NSEL2
PGA2
IDAC1_2
IDAC2_2
OSET_2
DIO_2
DIR_2
DEC02
DEC10
OCR02
OCR10
OCR18
FSR02
FSR10
FSR18
BUF EN
NSEL1
PGA1
IDAC1_1
IDAC2_1
OSET_1
DIO_1
DIR_1
DEC01
DEC09
OCR01
OCR09
OCR17
FSR01
FSR09
FSR17
BIT ORDER
NSEL0
PGA0
IDAC1_0
IDAC2_0
OSET_0
DIO_0
DIR_0
DEC00
DEC08
OCR00
OCR08
OCR16
FSR00
FSR08
FSR16
PSEL3
BOCS
IDAC1_7
IDAC2_7
SIGN
DIO_7
DIR_7
DEC07
DRDY
OCR07
OCR15
OCR23
FSR07
FSR15
FSR23
PSEL2
IDAC2R1
IDAC1_6
IDAC2_6
OSET_6
DIO_6
DIR_6
DEC06
U/B
OCR06
OCR14
OCR22
FSR06
FSR14
FSR22
PSEL1
IDAC2R0
IDAC1_5
IDAC2_5
OSET_5
DIO_5
DIR_5
DEC05
SMODE1
OCR05
OCR13
OCR21
FSR05
FSR13
FSR21
TABLE II. Registers.
REGISTER MAP
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
ID
ID
ID
SPEED
REF EN
REF HI
BUF EN
BIT ORDER
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
PSEL3
PSEL2
PSEL1
PSEL0
NSEL3
NSEL2
NSEL1
NSEL0
MUX
(Address 01
H
) Multiplexer Control Register
Reset Value = 01
H
bit 7-4
PSEL3: PSEL2: PSEL1: PSEL0: Positive Channel
Select
0000 = AIN0 (default)
0001 = AIN1
0010 = AIN2
0011 = AIN3
0100 = AIN4
0101 = AIN5
0110 = AIN6
0111 = AIN7
1xxx = AINCOM (except when all bits are 1s)
1111 = Temperature Sensor Diode
NSEL3: NSEL2: NSEL1: NSEL0: Negative Channel
Select
0000 = AIN0
0001 = AIN1 (default)
0010 = AIN2
0011 = AIN3
0100 = AIN4
0101 = AIN5
0110 = AIN6
0111 = AIN7
1xxx = AINCOM (except when all bits are 1s)
1111 = Temperature Sensor Diode
bit 3-0
相关PDF资料
PDF描述
ADS1217IPFBR 8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER
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相关代理商/技术参数
参数描述
ADS1217EVM 功能描述:数据转换 IC 开发工具 ADS1217 Eval Mod RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V
ADS1217IPFB 制造商:Texas Instruments 功能描述:IC 24BIT ADC SMD 1217 TQFP48 制造商:Texas Instruments 功能描述:IC, 24BIT ADC, SMD, 1217, TQFP48
ADS1217IPFB 制造商:Texas Instruments 功能描述:IC 24BIT ADC SMD 1217 TQFP48
ADS1217IPFBR 功能描述:模数转换器 - ADC 8-Ch 24-Bit ADC 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
ADS1217IPFBRG4 功能描述:模数转换器 - ADC 8-Ch 24B ADC 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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