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PRODUCT PREVIEW
FEATURES
APPLICATIONS
RELATED PRODUCTS
DESCRIPTION
Reference
TimingCLK
OVR D[12:0]
CLK
5
DRY
VREF
AIN
AIN TH1
5 5
Σ
DAC2ADC2
ADC3Σ
DAC1ADC1
AVDD DVDD
GND
Digital Error Correction
+
−
+
−
B0061-01
DRYOVR
A1 TH2 A2 A3TH3
ADS5444
SLWS162 – AUGUST 2005
13-BIT 250 MSPS ANALOG-TO-DIGITAL CONVERTER
• Industrial Temperature Range = – 40 ° C to 85 ° C
• 13-Bit Resolution
• 250 MSPS Sample Rate • Test and Measurement
• SNR = 68.7 dBc at 100-MHz IF and 250 MSPS • Software-Defined Radio
• SFDR = 71 dBc at 100-MHz IF and 250 MSPS • Multi-channel Basestation Receivers
• SNR = 67.6 dBc at 230-MHz IF and 250 MSPS • Basestation TX Digital Predistortion
• SFDR = 78 dBc at 230-MHz IF and 250 MSPS • Communications Instrumentation
• 2.2 V PP Differential Input Voltage
• Fully Buffered Analog Inputs
• ADS5424 - 14-bit, 105 MSPS• 5 V Analog Supply Voltage
• ADS5423 - 14-bit, 80 MSPS• 3.3 V LVDS Compatible Outputs
• ADS5440 - 13-bit, 210 MSPS• Total Power Dissipation: 2.1 W
• 2's Complement Output Format
• TQFP-80 PowerPAD ™ Package
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.
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.