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SBAS309 − MAY 2004
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D
Pin-Compatible with:
FEATURES
− ADS5500 (14-Bit, 125MSPS)
− ADS5541 (14-Bit, 105MSPS)
− ADS5542 (14-Bit, 80MSPS)
− ADS5520 (12-Bit, 125MSPS)
− ADS5522 (12-Bit, 80MSPS)
D
D
D
D
D
D
D
D
12-Bit Resolution
105MSPS Sample Rate
High SNR: 69.4dB at 100MHz f
IN
High SFDR: 85.0dB at 100MHz f
IN
APPLICATIONS
D
2.3V Differential Input Voltage
PP
Wireless Communication
− Communication Receivers
− Base Station Infrastructure
Internal Voltage Reference
3.3V Single-Supply Voltage
D
D
D
D
D
D
Test and Measurement Instrumentation
Single and Multichannel Digital Receivers
Analog Power Dissipation: 564mW
− Total Power Dissipation: 700mW
Communication Instrumentation
− Radar, Infrared
D
D
TQFP-64 PowerPADE Package
Recommended Op Amps:
THS3202, THS3201, THS4503,
OPA695, OPA847
Video and Imaging
Medical Equipment
Military Equipment
DESCRIPTION
The ADS5521 is a high-performance, 12-bit, 105MSPS analog-to-digital converter (ADC). To provide a complete
converter solution, it includes a high-bandwidth linear sample-and-hold stage (S&H) and internal reference. Designed
for applications demanding the highest speed and highest dynamic performance in very little space, the ADS5521
has excellent power consumption of 700mW at 3.3V single-supply voltage. This allows an even higher system
integration density. The provided internal reference simplifies system design requirements. Parallel CMOS
compatible output ensures seamless interfacing with common logic.
The ADS5521 is available in a 64-pin TQFP PowerPAD package and is pin-compatible with the ADS5500, ADS5541,
ADS5542, ADS5520, and ADS5522. This device is specified over the full temperature range of −40°C to +85°C.
AVDD
DRVDD
CLK+
CLK
CLKOUT
Timing Circuitry
−
D0
V +
12−Bit
Pipeline
ADC Core
Digital
Error
Correction
IN
.
.
.
Output
Control
S&H
V
−
IN
D11
OVR
DFS
Control Logic
Internal
Reference
CM
Serial Programming Register
ADS5521
AGND
DRGND
SCLK
SEN
SDATA
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.
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Copyright 2004, Texas Instruments Incorporated
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