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)： 21/29頁
文件大?。?/td> 782K
代理商： ADS8370IB
www.ti.com
ADS8370
REFM
REFIN
REFOUT
AGND
0.1 F
1 F
ADS8370
REFM
REFIN
REFOUT
AGND
0.1 F
1 F
REF3240
22 F
50
AGND
ADS8370
AGND
+VA
_
+
53
53
40 pF
40 pF
+IN
IN
AGND
ANALOG INPUT
When the converter enters hold mode, the voltage difference between the +IN and –IN inputs is captured on the
internal capacitor array. The +IN input has a range of –0.2 V to (+V
REF
+ 0.2 V), whereas the –IN input has a
range of –0.2 V to +0.2 V. The input span [+IN – (–IN)] is limited from 0 V to V
REF
.
The input current on the analog inputs depends upon throughput and the frequency content of the analog input
ADS8370
SLAS450–JUNE 2005
PRINCIPLES OF OPERATION (continued)
Figure 48. ADS8370 Using Internal Reference
The REFIN pin is also internally buffered. This eliminates the need to put a high bandwidth buffer on the board to
drive the ADC reference and saves system area and power. When an external reference is used, the reference
must be of low noise, which may be achieved by the addition of bypass capacitors from the REFIN pin to the
REFM pin. See
Figure 49
for operation of the ADS8370 with an external reference. REFM must be connected to
the analog ground plane.
Figure 49. ADS8370 Using External Reference
Figure 50. Simplified Analog Input
21
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相關(guān)代理商/技術(shù)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(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
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(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
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(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
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(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
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(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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