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参数资料
| 型号： | THS14F01IPFBG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | ADC |
| 英文描述： | 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP48 |
| 封装： | GREEN, PLASTIC, TQFP-48 |
| 文件页数： | 10/24页 |
| 文件大小： | 329K |
| 代理商： | THS14F01IPFBG4 |
THS14F01, THS14F03
14-BIT, 1 MSPS/ 3 MSPS, DSP COMPATIBLE, ANALOG-TO-DIGITAL CONVERTERS
WITH FIFO INTERNAL REFERENCE AND PGA
SLAS285 – JUNE 2000
18
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
fully differential configuration
In this configuration, the ADC converts the difference (
IN) of the two input signals on IN+ and IN–.
100 pF
IN+
IN–
THS14F01/3
22
100 pF
22
Figure 16. Differential Input
The resistors and capacitors on the inputs decouple the driving source output from the ADC input and also serve
as first order low pass filters to attenuate out of band noise.
The input range on both inputs is 0 V to AVDD. The full-scale value is determined by the voltage reference. The
positive full-scale output is reached, if
IN equals REF, the negative full-scale output is reached, if IN equals
–
REF.
IN [V]
OUTPUT
–
REF
– full scale
0
REF
+ full scale
transformer coupled single-ended to differential configuration
If the application requires the best SNR, SFDR, and THD performance, the input should be transformer coupled.
The signal amplitude on both inputs of the ADC is one half as high as in a single-ended configuration thus
increasing the ADC ac performance.
100 pF
IN+
IN–
THS14F01/3
CML
R
100 pF
22
22
+
1
F
0.1
F
Figure 17. Transformer Coupled
IN [VPEAK]
OUTPUT [PEAK]
–
REF
– full scale
0
REF
+ full scale
n = 1 (winding ratio)
The resistor R of the transformer coupled input configuration must be set to match the signal source impedance
R = n2 Rs, where Rs is the source impedance and n is the transformer winding ratio.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| THS14F03 | 制造商:TI 制造商全称:Texas Instruments 功能描述:14-BIT, 1 MSPS/ 3 MSPS, DSP COMPATIBLE, ANALOG-TO-DIGITAL CONVERTERS WITH FIFO INTERNAL REFERENCE AND PGA |
| THS14F03EVM | 功能描述:数据转换 IC 开发工具 THS14F03 Eval Mod RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| THS14F03IPFB | 功能描述:模数转换器 - ADC 14-bit 3 MSPS with 32-word FIFO 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 |
| THS14F03IPFBG4 | 功能描述:模数转换器 - ADC 14-bit 3 MSPS with 32-word FIFO 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 |
| THS14-THS18-D | 制造商:Thomas & Betts 功能描述:CATAMOUNT CABLE TIES |
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