參數(shù)資料
型號： ADS8370IB
英文描述： 16-BIT, 600-kHz, PSEUDO-DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH SERIAL INTERFACE AND REFERENCE
中文描述： 16位，600千赫，偽差分輸入，微采樣模數(shù)位串行接口和參考轉(zhuǎn)爐
文件頁數(shù)： 20/29頁
文件大?。?/td> 782K
代理商： ADS8370IB
www.ti.com
CS
CONVST
SDO
D15
1
16 17 18 19
SCLK
LSB
D0
BUSY
D0
D14
D13
Conversion N+1
D12
D1
D0
t
h6
t
su7
t
cyc
t
su6
t
w3
t
d15
MSB of Conversion N1
MSB of Conversion N
t
d13
t
d7
t
h8
t
su3
D15 Repeated
If There is 19th SCLK
No FS
Fall
Zone
FS Fall After This
Point Reads Data
From Conversion
N
FS Fall Before This
Point Reads Data
From Conversion
N1
Conversion N
t
quiet2
t
quiet1
FS
t
quiet3
2
3
4
Don’t Care
(D0 Repeated)
PRINCIPLES OF OPERATION
REFERENCE
The ADS8370 has a built-in 4.096-V (nominal value) reference but can operate with an external reference also.
When the internal reference is used, pin 9 (REFOUT) should be shorted to pin 8 (REFIN) and a 0.1-μF
decoupling capacitor and a 1-μF storage capacitor must be connected between pin 8 (REFIN) and pin 7 (REFM)
(see
Figure 48
). The internal reference of the converter is buffered.
ADS8370
SLAS450–JUNE 2005
Figure 47. Read Frame Controlled via FS (FS is High When BUSY Falls)
If another data frame is attempted by pulling up FS during an active data frame, then the ongoing frame is
aborted and a new frame is started.
The ADS8370 is a high-speed successive approximation register (SAR) analog-to-digital converter (ADC). The
architecture is based on charge redistribution, which inherently includes a sample/hold function.
The device includes a built-in conversion clock, internal reference, and 40-MHz SPI compatible serial interface.
The maximum conversion time is 1.16
μ
s which is capable of sustaining a 600-kHz throughput.
The analog input is provided to the two input pins: +IN and –IN. When a conversion is initiated, the differential
input on these pins is sampled on the internal capacitor array. While a conversion is in progress, both inputs are
disconnected from any internal function.
20
相關PDF資料
PDF描述
ADS8372 16-BIT, 600-kHz, PSEUDO-DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH SERIAL INTERFACE AND REFERENCE
ADS8382 16-BIT, 600-kHz, PSEUDO-DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH SERIAL INTERFACE AND REFERENCE
ADS8371 16BIT 750KHZ UNIPOLAR INPUT, MICRO POWER SAMPLING ANALOG TO DIGITAL CONVERTER WITH PARALLEL INTERFACE
ADS8371IB 16BIT 750KHZ UNIPOLAR INPUT, MICRO POWER SAMPLING ANALOG TO DIGITAL CONVERTER WITH PARALLEL INTERFACE
ADS8371IBPFBR 16BIT 750KHZ UNIPOLAR INPUT, MICRO POWER SAMPLING ANALOG TO DIGITAL CONVERTER WITH PARALLEL INTERFACE
相關代理商/技術參數(shù)
參數(shù)描述
ADS8370IBRHPR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 600KSPS Serial RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構: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
ADS8370IBRHPRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 600KSPS Serial RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構: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
ADS8370IBRHPT 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 600KSPS Serial RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構: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
ADS8370IBRHPTG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 600KSPS Serial RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構: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
ADS8370IRHPR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 600KSPS Serial RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構: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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