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參數(shù)資料
型號(hào)： THS10064CDA
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 4-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
封裝： GREEN, PLASTIC, TSSOP-32
文件頁(yè)數(shù)： 28/42頁(yè)
文件大小： 527K
代理商： THS10064CDA
THS10064
SLAS255B – DECEMBER 1999 – REVISED DECEMBER 2002
www.ti.com
34
A differential operation is desired for many applications. Figure 43 shows a simplified model for the analog inputs
AINM and AINP, which are configured for differential operation. This configuration has a few advantages, which are
discussed in the following paragraphs.
10-Bit
ADC
VREFP
VREFM
AINP
Σ
VADC
AINM
+
–
Figure 43. Differential Input Stage
In comparison to the single-ended configuration it can be seen that the voltage, VADC, which is applied at the input
of the ADC is the difference between the input AINP and AINM. This means that VREFM defines the minimum voltage
(VADC) which can be applied to the ADC. VREFP defines the maximum voltage (VADC) which can be applied to the
ADC. The voltage VADC can be calculated as follows:
V
ADC +
ABS(AINP–AINM)
An advantage to single-ended operation is that the common-mode voltage
V
CM +
AINM
) AINP
2
can be rejected in the differential configuration, if the following condition for the analog input voltages is true:
AGND
v AINM, AINP v AV
DD
1V
v V
CM v
4V
In addition to the common-mode voltage rejection, the differential operation allows a dc-offset rejection which is
common to both analog inputs. See Figure 45.
SINGLE-ENDED MODE OF OPERATION
The THS10064 can be configured for single-ended operation using dc- or ac-coupling. In either case, the input of
the THS10064 must be driven from an operational amplifier that does not degrade the ADC performance. Because
the THS10064 operates from a 5-V single supply, it is necessary to level-shift ground-based bipolar signals to comply
with its input requirements. This can be achieved with dc- and ac-coupling. An application example is shown for
dc-coupled level shifting in the following section, dc-coupling.
(2)
(3)
(4)
(5)
相關(guān)PDF資料
PDF描述
THS10064IDA 4-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
THS10064CDAR 4-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
THS10064IDAR 4-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
THS10064IDAG4 4-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
THS1007CDA 4-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS10064CDAG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 6 MSPS Quad Ch DSP/uP Ifc 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
THS10064CDAR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 6 MSPS Quad Ch DSP/uP Ifc 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
THS10064CDARG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 6 MSPS Quad Ch DSP/uP Ifc 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
THS10064DA 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT 6 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER
THS10064EVM 制造商:Texas Instruments 功能描述:THS10064 10-BIT, 6 MSPS, DC EVM - Bulk
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