參數(shù)資料
型號(hào)： ADS1256
英文描述： Very Low Noise, 24-Bit Analog-to-Digital Converter
中文描述： 極低噪聲，24位模擬數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù)： 31/39頁(yè)
文件大?。?/td> 427K
代理商： ADS1256
SBAS288D JUNE 2003 REVISED AUGUST 2004
www.ti.com
31
MUX : Input Multiplexer Control Register (Address 01h)
Reset Value = 01h
BIT 7
PSEL3
BIT 6
PSEL2
BIT 5
PSEL1
BIT 4
PSEL0
BIT 3
NSEL3
BIT 2
NSEL2
BIT 1
NSEL1
BIT 0
NSEL0
Bits 7-4
PSEL3, PSEL2, PSEL1, PSEL0
: Positive Input Channel (AIN
P
) Select
0000 = AIN0 (default)
0001 = AIN1
0010 = AIN2 (ADS1256 only)
0011 = AIN3 (ADS1256 only)
0100 = AIN4 (ADS1256 only)
0101 = AIN5 (ADS1256 only)
0110 = AIN6 (ADS1256 only)
0111 = AIN7 (ADS1256 only)
1xxx = AINCOM (when PSEL3 = 1, PSEL2, PSEL1, PSEL0 are “don’t care”)
NOTE: When using an ADS1255 make sure to only select the available inputs.
Bits 3-0
NSEL3, NSEL2, NSEL1, NSEL0
: Negative Input Channel (AIN
N
)Select
0000 = AIN0
0001 = AIN1 (default)
0010 = AIN2 (ADS1256 only)
0011 = AIN3 (ADS1256 only)
0100 = AIN4 (ADS1256 only)
0101 = AIN5 (ADS1256 only)
0110 = AIN6 (ADS1256 only)
0111 = AIN7 (ADS1256 only)
1xxx = AINCOM (when NSEL3 = 1, NSEL2, NSEL1, NSEL0 are “don’t care”)
NOTE: When using an ADS1255 make sure to only select the available inputs.
ADCON: A/D Control Register (Address 02h)
Reset Value = 20h
BIT 7
0
BIT 6
CLK1
BIT 5
CLK0
BIT 4
SDCS1
BIT 3
SDCS0
BIT 2
PGA2
BIT 1
PGA1
BIT 0
PGA0
Bit 7
Bits 6-5
CLK1, CLK0
: D0/CLKOUT Clock Out Rate Setting
00 = Clock Out OFF
01 = Clock Out Frequency = f
CLKIN
(default)
10 = Clock Out Frequency = f
CLKIN
/2
11 = Clock Out Frequency = f
CLKIN
/4
When not using CLKOUT, it is recommended that it be turned off. These bits can only be reset using the RESET pin.
Bits 4-2
SDCS1, SCDS0
: Sensor Detect Current Sources
00 = Sensor Detect OFF (default)
01 = Sensor Detect Current = 0.5
μ
A
10 = Sensor Detect Current = 2
μ
A
11 = Sensor Detect Current = 10
μ
A
The Sensor Detect Current Sources can be activated to verify the integrity of an external sensor supplying a signal to the
ADS1255/6. A shorted sensor produces a very small signal while an open-circuit sensor produces a very large signal.
Bits 2-0
PGA2, PGA1, PGA0
: Programmable Gain Amplifier Setting
000 = 1 (default)
001 = 2
010 = 4
011 = 8
100 = 16
101 = 32
110 = 64
111 = 64
Reserved, always 0 (Read Only)
相關(guān)PDF資料
PDF描述
ADS1271 24 BIT WIDE BANDWIDTH ANALOG TO DIGITAL CONVERTER
ADS1271IPW 24 BIT WIDE BANDWIDTH ANALOG TO DIGITAL CONVERTER
ADS1271IPWR 24 BIT WIDE BANDWIDTH ANALOG TO DIGITAL CONVERTER
ADS1271EVM-PDK modular EVM form factor
ADS1271EVM modular EVM form factor
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS1256EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 ADS1256 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
ADS1256EVM-PDK 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 ADS1256 Perf Demo Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
ADS1256IDB 制造商:BB 制造商全稱:BB 功能描述:Very Low Noise, 24-Bit Analog-to-Digital Converter
ADS1256IDBR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24Bit 30kSPS Very Lo-Noise Delta-Sigma RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1256IDBRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24Bit 30kSPS Very Lo-Noise Delta-Sigma RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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