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AD55444

更新时间: 2024-11-24 21:55:11
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
15页 370K
描述
13-BIT 250 MSPS ANALOG-TO-DIGITAL CONVERTER

AD55444 数据手册

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ADS5444  
www.ti.com  
SLWS162AUGUST 2005  
13-BIT 250 MSPS ANALOG-TO-DIGITAL CONVERTER  
FEATURES  
Industrial Temperature Range = –40°C to 85°C  
13-Bit Resolution  
APPLICATIONS  
250 MSPS Sample Rate  
Test and Measurement  
Software-Defined Radio  
Multi-channel Basestation Receivers  
Basestation TX Digital Predistortion  
Communications Instrumentation  
SNR = 68.7 dBc at 100-MHz IF and 250 MSPS  
SFDR = 71 dBc at 100-MHz IF and 250 MSPS  
SNR = 67.6 dBc at 230-MHz IF and 250 MSPS  
SFDR = 78 dBc at 230-MHz IF and 250 MSPS  
2.2 VPP Differential Input Voltage  
Fully Buffered Analog Inputs  
RELATED PRODUCTS  
ADS5424 - 14-bit, 105 MSPS  
ADS5423 - 14-bit, 80 MSPS  
ADS5440 - 13-bit, 210 MSPS  
5 V Analog Supply Voltage  
3.3 V LVDS Compatible Outputs  
Total Power Dissipation: 2.1 W  
2's Complement Output Format  
TQFP-80 PowerPAD™ Package  
DESCRIPTION  
The ADS5444 is a 13-bit 250 MSPS analog-to-digital converter (ADC) that operates from a 5 V supply, while  
providing LVDS-compatible digital outputs from a 3.3 V supply. The ADS5444 input buffer isolates the internal  
switching of the onboard track and hold (T&H) from disturbing the signal source. An internal reference generator  
is also provided to further simplify the system design. The ADS5444 has outstanding low noise and linearity over  
input frequency.  
AV  
DV  
DD  
DD  
AIN  
AIN  
+
+
Σ
Σ
A1  
TH1  
TH2  
A2  
TH3  
A3  
ADC3  
ADC1  
DAC1  
ADC2  
DAC2  
VREF  
Reference  
5
5
5
Digital Error Correction  
CLK  
CLK  
Timing  
OVR  
OVR  
DRY  
DRY  
D[12:0]  
GND  
B0061-01  
The ADS5444 is available in an 80-pin TQFP PowerPAD™ package. The ADS5444 is built on state of the art  
Texas Instruments complementary bipolar process (BiCom3X) and is specified over the full industrial  
temperature range (–40°C to 85°C).  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PowerPAD is a trademark of Texas Instruments.  
PRODUCT PREVIEW information concerns products in the forma-  
Copyright © 2005, Texas Instruments Incorporated  
tive or design phase of development. Characteristic data and other  
specifications are design goals. Texas Instruments reserves the  
right to change or discontinue these products without notice.  

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