ADS5424_14 Datasheet, PDF (1/29 Pages) Texas Instruments – 14 Bit, 105 MSPS Analog-to-Digital Converter

ADS5424
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SLWS157B − JANUARY 2005 − REVISED JANUARY 2010
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
DESCRIPTION
D 52 Pin HTQFP Package With Exposed
Heatsink
D Pin Compatible to the AD6644/45
D Industrial Temperature Range = −405C 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
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 (−40°C to 85°C).
FUNCTIONAL BLOCK DIAGRAM
AV_DD DRV_DD
A_IN
A_IN
A1
TH1
TH2
+_Σ
A2
−
TH3
+_Σ
A3
ADC3
−
ADC1
DAC1
ADC2
DAC2
VREF
Reference
5
5
6
C1
C2
Digital Error Correction
CLK+
CLK−
Timing
DMID OVR DRY
D[13:0]
GND
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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  2005, Texas Instruments Incorporated
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