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參數資料
| 型號： | THS1401QPFB |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP48 |
| 封裝： | PLASTIC, TQFP-48 |
| 文件頁數： | 9/30頁 |
| 文件大小： | 475K |
| 代理商： | THS1401QPFB |
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THS1401, THS1403, THS1408
14-BIT, 1/3/8 MSPS DSP COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS
WITH INTERNAL REFERENCE AND PGA
SLAS248B – DECEMBER 1999 – REVISED JANUARY 2001
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
driving the analog input
The THS1401/3/8 ADCs have a fully differential input. A differential input is advantageous with respect to SNR,
SFDR, and THD performance because the signal peak-to-peak level is 50% of a comparable single-ended
input.
There are three basic input configurations:
D Fully differential
D Transformer coupled single-ended to differential
D Single-ended
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–
THS1401/3/8
22
100 pF
22
Figure 19. 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
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相關代理商/技術參數 |
參數描述 |
|---|---|
| THS1401QPHP | 功能描述:IC A/D 14BIT 1MSPS 1-CH 48HTQFP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數:12 采樣率（每秒）:3M 數據接口:- 轉換器數目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數目和類型:- |
| THS1401QPHPEP | 功能描述:模數轉換器 - ADC Mil Enhanc 14B 1/3/8 MSPS DSP Comp ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| THS1403 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:14-Bit, 1/3/8 MSPS, DSP-COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS WITH INTERNAL REFERENCE AND PGA |
| THS1403CPFB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| THS1403-EP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:14-BIT, 1/3/8 MSPS DSP COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS WITH INTERNAL REFERENCE AND PGA |
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