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參數(shù)資料
型號(hào)： THS1206CDAR
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 4-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
封裝： GREEN, PLASTIC, TSSOP-32
文件頁(yè)數(shù)： 30/43頁(yè)
文件大小： 722K
代理商： THS1206CDAR
THS1206
SLAS217H – MAY 1999 – REVISED JULY 2003#
www.ti.com
36
DC COUPLING
An operational amplifier can be configured to shift the signal level according to the analog input voltage range of the
THS1206. The analog input voltage range of the THS1206 goes from 1.5 V to 3.5 V. An op-amp specified for 5-V single
supply can be used as shown in Figure 42.
Figure 42 shows an application example where the analog input signal in the range from –1 V up to 1 V is shifted by an
op-amp to the analog input range of the THS1206 (1.5 V to 3.5 V). The op-amp is configured as an inverting amplifier with
a gain of –1. The required dc voltage of 1.25 V at the noninverting input is derived from the 2.5-V output reference REFOUT
of the THS1206 by using a resistor divider. Therefore, the op-amp output voltage is centered at 2.5 V. The use of ratio
matched, thin-film resistor networks minimizes gain and offset errors.
_
+
5 V
R
RS
3.5 V
2.5 V
1.5 V
THS1206
AINP
REFOUT
R
1.25 V
1 V
0 V
–1 V
REFIN
Figure 42. Level-Shift for DC-Coupled Input
DIFFERENTIAL MODE OF OPERATION
For the differential mode of operation, a conversion from single-ended to differential is required. A conversion to differential
signals can be achieved by using an RF-transformer, which provides a center tap. Best performance is achieved in
differential mode.
THS1206
AINP
AINM
REFOUT
C
R
200
49.9
Mini Circuits
T4–1
Figure 43. Transformer Coupled Input
相關(guān)PDF資料
PDF描述
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THS1206MDAREP 4-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS1206CDARG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 6 MSPS Quad Channel 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
THS1206DA 制造商:TI 制造商全稱:Texas Instruments 功能描述:12-BIT 6 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTERS
THS1206-EP 制造商:TI 制造商全稱:Texas Instruments 功能描述:12-BIT 6 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTERS
THS1206EVM 制造商:Texas Instruments 功能描述:12-BIT 6MSPS QUAD CH. LOW POWER ADC EVM - Bulk 制造商:Texas Instruments 功能描述:THS1206 EVAL MODULE
THS1206IDA 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 6 MSPS Quad Channel 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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