参数资料
型号: THS1030CDWR
厂商: TEXAS INSTRUMENTS INC
元件分类: ADC
英文描述: 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
封装: GREEN, PLASTIC, SOIC-28
文件页数: 14/37页
文件大小: 727K
代理商: THS1030CDWR
THS1030
3V TO 5.5V, 10BIT, 30 MSPS
CMOS ANALOGTODIGITAL CONVERTER
SLAS243E NOVEMBER 1999 REVISED DECEMBER 2003
21
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
onboard reference generator configuration (continued)
_
+
VBG
Internal
Reference
Buffer
REFSENSE
AGND
VREF = External
AVDD
_
+
Mode =
AVDD
2
Figure 23. Drive VREF Mode
operating configuration examples
This section provides examples of operating configurations.
Figure 24 shows the operating configuration in top/bottom mode for a 2-V span single-ended input, using VREF
to drive REFTS. Connecting the mode pin to AVDD puts the THS1030 in top/bottom mode. Connecting pin
REFSENSE to AGND sets the output of the ORG to 2 V. REFTS and REFBS are user-connected to VREF and
AGND respectively to match the AIN pin input range to the voltage range of the input signal.
AIN
REFTF
REFBF
REFSENSE
MODE
AVDD
2 V
0 V
0.1
F
10
F
0.1
F
0.1
F
1 V
VREF = 2 V
REFTS
REFBS
Figure 24. Operation Configuration in Top/Bottom Mode
In Figure 25 the input signal is differential, so mode = AVDD/2 (differential mode) is set to allow the inverse signal
to be applied to REFTS and REFBS. The differential input goes from 0.8 V to 0.8 V, giving a total input signal
span of 1.6 V, REFTF REFBF should therefore equal 1.6 V. REFSENSE is connected to resistors RA and RB
(external divider mode) to make VREF = 1.6 V, that is RA/RB = 0.6 (see Figure 22).
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相关代理商/技术参数
参数描述
THS1030CDWRG4 功能描述:模数转换器 - ADC 10-Bit 30 MSPS 1-Ch Pin Comp RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
THS1030CPW 功能描述:模数转换器 - ADC 10-Bit 30 MSPS 1-Ch Pin Comp RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
THS1030CPWG4 功能描述:模数转换器 - ADC 10-Bit 30 MSPS 1-Ch Pin Comp RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
THS1030CPWR 功能描述:模数转换器 - ADC 10-Bit 30 MSPS 1-Ch Pin Comp RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
THS1030CPWRG4 功能描述:模数转换器 - ADC 10-Bit 30 MSPS 1-Ch Pin Comp RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32