ADS5424 Datasheet

  • ADS5424

  • 5V 14 位 105MSPS 高性能双极性模数转换器

  • 732.34KB

  • 24页

  • TI

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ADS5424
www.ti.com
SLWS157A 鈭?JANUARY 2005 鈭?REVISED MAY 2005
14 Bit, 105 MSPS
Analog to Digital Converter
FEATURES
D
14 Bit Resolution
D
105 MSPS Maximum Sample Rate
D
SNR = 74 dBc at 105 MSPS and 50-MHz IF
D
SFDR = 93 dBc at 105 MSPS and 50-MHz IF
D
2.2 V
pp
Differential Input Range
D
5 V Supply Operation
D
3.3 V CMOS Compatible Outputs
D
1.9 W Total Power Dissipation
D
2s Complement Output Format
D
On-Chip Input Analog Buffer, Track and Hold,
and Reference Circuit
D
52 Pin HTQFP Package With Exposed
Heatsink
D
Pin Compatible to the AD6644/45
D
Industrial Temperature Range = 鈭?05C to 855C
APPLICATIONS
D
Single and Multichannel Digital Receivers
D
Base Station Infrastructure
D
Instrumentation
D
Video and Imaging
RELATED DEVICES
D
Clocking: CDC7005
D
Amplifiers: OPA695, THS4509
DESCRIPTION
The ADS5424 is a 14 bit 105 MSPS analog-to-digital converter (ADC) that operates from a 5 V supply, while providing 3.3 V
CMOS compatible digital outputs. The ADS5424 input buffer isolates the internal switching of the on-chip Track and Hold
(T&H) from disturbing the signal source. An internal reference generator is also provided to further simplify the system
design. The ADS5424 has outstanding low noise and linearity, over input frequency. With only a 2.2 V
PP
input range,
simplifies the design of multicarrier applications, where the carriers are selected on the digital domain.
The ADS5424 is available in a 52 pin HTQFP with heatsink package and is pin compatible to the AD6645. The ADS5424
is built on state of the art Texas Instruments complementary bipolar process (BiCom3) and is specified over full industrial
temperature range (鈭?0掳C to 85掳C).
FUNCTIONAL BLOCK DIAGRAM
AVDD
AIN
AIN
TH1
TH2
DRVDD
ADC3
A1
+
鈭?/div>
A2
TH3
+
鈭?/div>
A3
ADC1
DAC1
ADC2
DAC2
VREF
Reference
5
C1
C2
CLK+
CLK鈭?/div>
Timing
Digital Error Correction
5
6
DMID OVR
DRY
D[13:0]
GND
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. All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright
铮?/div>
2005, Texas Instruments Incorporated
www.ti.com

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