ADS5433
ADS5433
www.ti.com
SLAS503–APRIL 2006
14 BIT, 80 MSPS ANALOG-TO-DIGITAL CONVERTER
FEATURES
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52 Pin HTQFP Package With Exposed
Heatsink
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14 Bit Resolution
Pin Compatible to the ADS5423, ADS5424,
and AD6644/45
80 MSPS Maximum Sample Rate
Typical SNR = 74.4 dBc at 80 MSPS and
30 MHz IF
Industrial Temperature Range = –40°C to
85°C
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Typical SFDR = 96.5 dBc at 80 MSPS and
30 MHz IF
APPLICATIONS
Assured SFDR = 91 dBc at 80 MSPS and
30 MHz IF
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Single and Multichannel Digital Receivers
Base Station Infrastructure
Instrumentation
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2.2 Vpp Differential Input Range
5 V Supply Operation
Video and Imaging
3.3 V CMOS Compatible Outputs
1.85 W Total Power Dissipation
2s Complement Output Format
RELATED DEVICES
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Clocking: CDC7005
Amplifiers: OPA695, THS4509
On-Chip Input Analog Buffer, Track and Hold,
and Reference Circuit
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 VPP 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
DRV
DD
DD
AIN
AIN
+
+
A3
A2
TH3
TH2
TH1
ADC3
Σ
Σ
A1
−
−
ADC1
DAC1
VREF
ADC2
DAC2
Reference
6
5
5
C1
C2
Digital Error Correction
CLK
CLK
Timing
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.
Copyright © 2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.