60

70

80

90

100

0

50

100

150

200

250

300

G001

170 MSPS, No Dither

170 MSPS, Dither Enabled

200 MSPS, No Dither

200 MSPS, Dither Enabled

70

71

72

73

74

75

76

77

78

0

50

100

150

200

250

300

G002

200 MSPS, Dither Enabled

170 MSPS, Dither Enabled

170 MSPS, No Dither

200 MSPS, No Dither

ADS5484

ADS5485

16-Bit, 170/200-MSPS Analog-to-Digital Converters

Check for Samples: ADS5484 ADS5485

1

FEATURES

APPLICATIONS

•

Wireless Infrastructure

23

•

170/200-MSPS Sample Rates

•

Test and Measurement Instrumentation

•

16-Bit Resolution, 78 dBFS Noise Floor

•

Software-Defined Radio

•

SFDR = 95 dBc

•

Data Acquisition

•

On-Chip High Impedance Analog Buffer

•

Power Amplifier Linearization

•

Efficient DDR LVDS-Compatible Outputs

•

Radar

•

Power-Down Mode: 70 mW

•

Medical Imaging

•

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

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

SNR

vs

vs

INPUT FREQUENCY

INPUT FREQUENCY

1

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.

2

PowerPAD is a trademark of Texas Instruments.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2008–2009, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.