參數(shù)資料
型號： 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
文件頁數(shù)： 37/39頁
文件大?。?/td> 427K
代理商： ADS1256
SBAS288D JUNE 2003 REVISED AUGUST 2004
www.ti.com
37
SYSOCAL: System Offset Calibration
Description:
Performs a system offset calibration. The Offset Calibration Register (OFC) is updated after this operation.
DRDY goes high at the beginning of the calibration. It goes low after the calibration completes and settled data is ready.
Do not send additional commands after issuing this command until DRDY goes low indicating that the calibration is
complete.
SYSGCAL: System Gain Calibration
Description:
Performs a system gain calibration. The Full-Scale Calibration Register (FSC) is updated after this operation.
DRDY goes high at the beginning of the calibration. It goes low after the calibration completes and settled data is ready.
Do not send additional commands after issuing this command until DRDY goes low indicating that the calibration is
complete.
SYNC: Synchronize the A/D Conversion
Description:
This command synchronizes the A/D conversion. To use, first shift in the command. Then shift in the
WAKEUP command. Synchronization occurs on the first CLKIN rising edge after the first SCLK used to shift in the
WAKEUP command.
DIN
SCLK
CLKIN
1111 1100
(SYNC)
0000 0000
(WAKEUP)
Synchronization Occurs Here
Figure 35. SYNC Command Sequence
STANDBY: Standby Mode / One-Shot Mode
Description:
This command puts the ADS1255/6 into a low-power Standby mode. After issuing the STANDBY command,
make sure there is no more activity on SCLK while CS is low, as this will interrupt Standby mode. If CS is high, SCLK activity
is allowed during Standby mode. To exit Standby mode, issue the WAKEUP command. This command can also be used
to perform single conversions (see One-Shot Mode section) .
DIN
SCLK
1111 1101
(STANDBY)
Normal Mode
Standby Mode
Normal Mode
0000 0000
(WAKEUP)
Figure 36. STANDBY Command Sequence
WAKEUP: Complete Synchronization or Exit Standby Mode
Description:
Used in conjunction with the SYNC and STANDBY commands. Two values (all zeros or all ones) are
available for this command.
RESET: Reset Registers to Default Values
Description:
Returns all registers except the CLK0 and CLK1 bits in the ADCON register to their default values.
This command will also stop the Read Continuous mode: in this case, issue the RESET command after DRDY goes low.
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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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