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
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FEATURES
APPLICATIONS
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Wireless Infrastructure
Test and Measurement Instrumentation
Software-Defined Radio
Data Acquisition
Power Amplifier Linearization
Radar
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170/200-MSPS Sample Rates
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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
Medical Imaging
Pin-for-Pin with ADS5483/5482/5481,
135/105/80-MSPS ADCs
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QFN-64 PowerPAD™ Package
(9 mm × 9 mm footprint)
Industrial Temperature Range:
–40°C to 85°C
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
SNR
vs
INPUT FREQUENCY
INPUT FREQUENCY
100
90
80
70
60
78
77
76
75
74
73
72
71
70
170 MSPS, No Dither
170 MSPS, Dither Enabled
170 MSPS, Dither Enabled
170 MSPS, No Dither
200 MSPS, Dither Enabled
200 MSPS, No Dither
200 MSPS, Dither Enabled
200 MSPS, No Dither
0
50
100
150
200
250
300
0
50
100
f − Input Frequency − MHz
IN
150
200
250
300
f
− Input Frequency − MHz
IN
G001
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.
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PowerPAD is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
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