ADS5433 Datasheet, PDF (1/22 Pages) Texas Instruments – 14 BIT, 80 MSPS ANALOG-TO-DIGITAL CONVERTER

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ADS5433
14 BIT, 80 MSPS ANALOG-TO-DIGITAL CONVERTER
ADS5433
SLAS503 – APRIL 2006
FEATURES
• 14 Bit Resolution
• 80 MSPS Maximum Sample Rate
• Typical SNR = 74.4 dBc at 80 MSPS and
30 MHz IF
• Typical SFDR = 96.5 dBc at 80 MSPS and
30 MHz IF
• Assured SFDR = 91 dBc at 80 MSPS and
30 MHz IF
• 2.2 V_pp Differential Input Range
• 5 V Supply Operation
• 3.3 V CMOS Compatible Outputs
• 1.85 W Total Power Dissipation
• 2s Complement Output Format
• On-Chip Input Analog Buffer, Track and Hold,
and Reference Circuit
• 52 Pin HTQFP Package With Exposed
Heatsink
• Pin Compatible to the ADS5423, ADS5424,
and AD6644/45
• Industrial Temperature Range = –40°C to
85°C
APPLICATIONS
• Single and Multichannel Digital Receivers
• Base Station Infrastructure
• Instrumentation
• Video and Imaging
RELATED DEVICES
• Clocking: CDC7005
• Amplifiers: OPA695, THS4509
DESCRIPTION
The ADS5433 is a 14 bit 80 MSPS analog-to-digital converter (ADC) that operates from 5 V and 3.3 V supplies
while providing 3.3 V CMOS compatible digital outputs. The ADS5433 is optimized for spurious-free dynamic
range (SFDR). Pin-compatible to the ADS5423, ADS5424, and AD6644/45, the ADS5433 provides enhanced
SFDR for input frequencies up to 100 MHz. At 80 MSPS, SFDR is typically 96.5 dBc and is guaranteed to 91
dBc over the industrial temperature range (-40°C to 85°C) with a -1 dBFS 30 MHz input signal.
The ADS5433 input buffer isolates the internal switching of the on-chip Track and Hold (T&H) from disturbing the
signal source. A 2.2 V_PP input range and internal reference generator simplify system design. The ADS5433 is
available in a 52 pin HTQFP package and is built on Texas Instrument’s complementary bipolar process
(BiCom3).
FUNCTIONAL BLOCK DIAGRAM
AV_DD DRV_DD
AIN
AIN
A1
TH1
VREF
Reference
C1
C2
CLK
CLK
Timing
TH2
+_Σ
A2
−
TH3
+_Σ
A3
−
ADC1
DAC1
ADC2
DAC2
5
5
Digital Error Correction
ADC3
6
DMID OVR DRY
D[13:0]
GND
B0061-02
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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006, Texas Instruments Incorporated