ADS5481_0811 Datasheet, PDF (1/42 Pages) Texas Instruments – 16-Bit, 80/105/135-MSPS Analog-to-Digital Converters

ADS5481
ADS5482
ADS5483
www.ti.com................................................................................................................................................... SLAS565A – JUNE 2008 – REVISED NOVEMBER 2008
16-Bit, 80/105/135-MSPS Analog-to-Digital Converters
FEATURES
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•23 80/105/135-MSPS Sample Rates
• 16-Bit Resolution
• SFDR: 95 dBc at 70 MHz and 135 MSPS
• SNR: 78.6 dBFS at 70 MHz and 135 MSPS
• Efficient DDR LVDS-Compatible Outputs
• Internal Dither Available
• Total Power Dissipation: 2.2 W
• Power-Down Mode: 70 mW
• On-Chip High Impedance Analog Buffer
• QFN-64 PowerPAD™ Package
(9 mm × 9 mm Footprint)
• Industrial Temperature Range:
–40°C to +85°C
APPLICATIONS
• Wireless Infrastructure (Multi-Carrier GSM,
WCDMA, LTE)
• Test and Measurement Instrumentation
• Software-Defined Radio
• Data Acquisition
• Power Amplifier Linearization
• Communication Instrumentation
• Radar
• Medical Imaging
DESCRIPTION
The ADS5481/ADS5482/ADS5483 (ADS548x) is a 16-bit family of analog-to-digital converters (ADCs) that
operate from both a 5-V supply and 3.3-V supply while providing LVDS-compatible digital outputs. The ADS548x
integrated analog input buffer isolates the internal switching of the onboard track and hold (T&H) from disturbing
the signal source while providing a high-impedance input. An internal reference generator is also provided to
simplify the system design.
Designed for highest total ENOB, the ADS548x family has outstanding low noise performance and spurious-free
dynamic range.
The ADS548x is available in an QFN-64 PowerPAD package. The device is built on Texas Instruments
complementary bipolar process (BiCom3) and is specified over the full industrial temperature range (–40°C to
+85°C).
SFDR
vs
INPUT FREQUENCY
100
95
ADS5482
90
ADS5481
85
ADS5483
80
0
20
40
60
80 100 120 140
f_I − Input Frequency − MHz
G068
82
81
80
79
78
77
76
75
0
SNR
vs
INPUT FREQUENCY
ADS5481
ADS5482
ADS5483
20
40
60
80 100 120 140
f_I − Input Frequency − MHz
G069
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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.
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All other trademarks are the property of their respective owners.
3
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 © 2008, Texas Instruments Incorporated