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ADS5484_1 Datasheet, PDF (1/37 Pages) Texas Instruments – 16-Bit, 170/200-MSPS Analog-to-Digital Converters
ADS5484
ADS5485
www.ti.com ............................................................................................................................................... SLAS610C – AUGUST 2008 – REVISED OCTOBER 2009
16-Bit, 170/200-MSPS Analog-to-Digital Converters
Check for Samples: ADS5484 ADS5485
FEATURES
1
•23 170/200-MSPS Sample Rates
• 16-Bit Resolution, 78 dBFS Noise Floor
• SFDR = 95 dBc
• On-Chip High Impedance Analog Buffer
• Efficient DDR LVDS-Compatible Outputs
• Power-Down Mode: 70 mW
• Pin-for-Pin with ADS5483/5482/5481,
135/105/80-MSPS ADCs
• QFN-64 PowerPAD™ Package
(9 mm × 9 mm footprint)
• Industrial Temperature Range:
–40°C to 85°C
APPLICATIONS
• Wireless Infrastructure
• Test and Measurement Instrumentation
• Software-Defined Radio
• Data Acquisition
• Power Amplifier Linearization
• Radar
• Medical Imaging
DESCRIPTION
The ADS5484/ADS5485 (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 provided to simplify the system
design. Internal dither is available to improve SFDR. These devices are drop-in compatible to the
ADS5483/5482/5481, creating a pin-compatible family from 80 – 200 MSPS. Designed for highest total ENOB,
the ADS548x family has outstanding low noise performance and spurious-free dynamic range.
The ADS548x family is available in a QFN-64 PowerPAD package. The devices are built on Texas Instruments
complementary bipolar process (BiCom3) and are specified over the full industrial temperature range (–40°C to
85°C).
SFDR
vs
INPUT FREQUENCY
SNR
vs
INPUT FREQUENCY
100
78
170 MSPS, Dither Enabled
77
170 MSPS, No Dither
170 MSPS, Dither Enabled
90
76
170 MSPS, No Dither
75
80
200 MSPS, Dither Enabled
74
73 200 MSPS, No Dither
70
72
200 MSPS, Dither Enabled
200 MSPS, No Dither
71
60
0
50
100
150
200
250
fIN − Input Frequency − MHz
300
G001
70
0
50
100
150
200
250
fIN − Input Frequency − MHz
300
G002
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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.
2
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 © 2008–2009, Texas Instruments Incorporated
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