Low-Power ADC. ADS4449 Datasheet

ADS4449 ADC. Datasheet pdf. Equivalent

Part ADS4449
Description Low-Power ADC
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ADS4449
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Sample &
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Technical
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Tools &
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Reference
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ADS4449
SBAS603A – APRIL 2013 – REVISED JANUARY 2016
ADS4449 Quad-Channel, 14-Bit, 250-MSPS, Low-Power ADC
1 Features
1 Quad Channel
• 14-Bit Resolution
• Maximum Sampling Data Rate: 250 MSPS
• Power Dissipation:
– 365 mW per Channel
• Spectral Performance at 170-MHz IF (typ):
– SNR: 69 dBFS
– SFDR: 86 dBc
• DDR LVDS Digital Output Interface
• Internal Dither
• Package: 144-Terminal NFBGA (10.00 mm ×
10.00 mm)
3 Description
The ADS4449 is a high-linearity, quad-channel, 14-
bit, 250-MSPS, analog-to-digital converter (ADC).
Designed for low power consumption and high
spurious-free dynamic range (SFDR), the device has
low-noise performance and outstanding SFDR over a
large input frequency range.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ADS4449
NFBGA (144)
10.00 mm × 10.00
mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
2 Applications
• Multi-Carrier GSM Cellular Infrastructure Base
Stations
• RADAR and Smart Antenna Arrays
• Multi-Carrier Multi-Mode Cellular Infrastructure
Base Stations
• Active Antenna Arrays for Wireless Infrastructures
• Communications Test Equipment
Spectrum for 170-MHz Input Frequency
0
fIN = 170 MHz
−20 SFDR = 89 dBc
SINAD = 68.9 dBFS
−40 SNR = 69 dBFS
THD = 85 dBc
−60
−80
−100
−120
0
25 50 75 100 125
Frequency (MHz)
G005
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.



ADS4449
ADS4449
SBAS603A – APRIL 2013 – REVISED JANUARY 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 6
6.5 Electrical Characteristics........................................... 7
6.6 Digital Characteristics ............................................... 9
6.7 Timing Requirements .............................................. 10
6.8 Timing Characteristics For Figure 1........................ 10
6.9 Typical Characteristics ............................................ 12
6.10 Typical Characteristics: Contour ........................... 18
7 Parameter Measurement Information ................ 19
7.1 LVDS Output Timing ............................................... 19
8 Detailed Description ............................................ 21
8.1 Overview ................................................................. 21
8.2 Functional Block Diagram ....................................... 21
8.3 Feature Description................................................. 22
8.4 Device Functional Modes........................................ 23
8.5 Programming .......................................................... 26
8.6 Register Maps ........................................................ 28
9 Application and Implementation ........................ 41
9.1 Application Information............................................ 41
9.2 Typical Application .................................................. 41
10 Power Supply Recommendations ..................... 48
11 Layout................................................................... 48
11.1 Layout Guidelines ................................................. 48
11.2 Layout Example ................................................... 48
12 Device and Documentation Support ................. 49
12.1 Device Nomenclature............................................ 49
12.2 Documentation Support ........................................ 50
12.3 Community Resources.......................................... 50
12.4 Trademarks ........................................................... 50
12.5 Electrostatic Discharge Caution ............................ 50
12.6 Glossary ................................................................ 50
13 Mechanical, Packaging, and Orderable
Information ........................................................... 50
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (April 2013) to Revision A
Page
• Added Internal Dither Features bullet .................................................................................................................................... 1
• Added ESD Ratings table, Feature Description section, Device Functional Modes section, Application and
Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation
Support section, and Mechanical, Packaging, and Orderable Information section................................................................ 1
• Deleted Package and Ordering Information because the data is repeated in the Package Option Addendum ................... 1
• Deleted SNRB from the configuration registers block in the functional block diagram ......................................................... 1
• Changed Clock Inputs, Input clock sample rate parameter minimum specification in Recommended Operating
Conditions table ...................................................................................................................................................................... 5
• Changed Table 2 ................................................................................................................................................................. 22
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