ADS5433
www.ti.com
FEATURES
APPLICATIONS
RELATED DEVICES
DESCRIPTION
FUNCTIONAL BLOCK DIAGRAM
Reference
TimingCLK
OVR D[13:0]
CLK
6
DMID DRY
VREF
AIN
AIN TH1
5 5
Σ
DAC2ADC2
ADC3Σ
DAC1ADC1
A3A1 TH2 TH3
C1
C2
AVDD DRVDD
GND
Digital Error Correction
A2+
−
+
−
B0061-02
ADS5433
SLAS503 – APRIL 2006
14 BIT, 80 MSPS ANALOG-TO-DIGITAL CONVERTER
• 52 Pin HTQFP Package With Exposed
Heatsink• 14 Bit Resolution
• Pin Compatible to the ADS5423, ADS5424,• 80 MSPS Maximum Sample Rate
and AD6644/45• Typical SNR = 74.4 dBc at 80 MSPS and
• Industrial Temperature Range = – 40 ° C to30 MHz IF
85 ° C• Typical SFDR = 96.5 dBc at 80 MSPS and
30 MHz IF
• Assured SFDR = 91 dBc at 80 MSPS and • Single and Multichannel Digital Receivers
30 MHz IF • Base Station Infrastructure
• 2.2 V pp Differential Input Range • Instrumentation
• 5 V Supply Operation • Video and Imaging
• 3.3 V CMOS Compatible Outputs
• 1.85 W Total Power Dissipation
• Clocking: CDC7005• 2s Complement Output Format
• Amplifiers: OPA695, THS4509• On-Chip Input Analog Buffer, Track and Hold,
and Reference Circuit
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).
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.