參數(shù)資料
型號： ADS8380IRHPR
英文描述： 18-BIT, 600-kHz, PSEUDO-DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH SERIAL INTERFACE AND REFERENCE
中文描述： 18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
文件大小： 1397K
代理商： ADS8380IRHPR
www.ti.com
CS
CONVST
SDO
D17
1
16 17 18 19
SCLK
LSB
D0
BUSY
D2
D16
D15
Conversion N+1
D14
D3
D1
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
D17 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
PRINCIPLES OF OPERATION
REFERENCE
The ADS8380 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.
ADS8380
SLAS387A–NOVEMBER 2004–REVISED DECEMBER 2004
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 ADS8380 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(guān)PDF資料
PDF描述
ADS8380IBRHPR 18-BIT, 600-kHz, PSEUDO-DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH SERIAL INTERFACE AND REFERENCE
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS8380IRHPRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18-Bit 600KSPS Serial 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
ADS8380IRHPT 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18-Bit 600KSPS Serial 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
ADS8380IRHPTG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18-Bit 600KSPS Serial 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
ADS8381 制造商:TI 制造商全稱:Texas Instruments 功能描述:18-BIT, 580-kHz, UNIPOLAR INPUT, MICRO POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE
ADS8381EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 ADS8381 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
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