ADS62P49_1 Datasheet, PDF (1/77 Pages) Texas Instruments – Dual Channel 14-/12-Bit, 250-/210-MSPS ADC With DDR LVDS and Parallel CMOS Outputs

ADS62P49 / ADS62P29
ADS62P48 / ADS62P28
www.ti.com............................................................................................................................................................. SLAS635A – APRIL 2009 – REVISED JUNE 2009
Dual Channel 14-/12-Bit, 250-/210-MSPS ADC With DDR LVDS and Parallel CMOS Outputs
FEATURES
1
• Maximum Sample Rate: 250 MSPS
• 14-Bit Resolution – ADS62P49/ADS62P48
• 12-Bit Resolution – ADS62P29/ADS62P28
• Total Power: 1.25 W at 250 MSPS
• Double Data Rate (DDR) LVDS and Parallel
CMOS Output Options
• Programmable Gain up to 6dB for SNR/SFDR
Trade-Off
• DC Offset Correction
• 90dB Cross-Talk
• Supports Input Clock Amplitude Down to 400
mV_PP Differential
• Internal and External Reference Support
• 64-QFN Package (9 mm × 9 mm)
ADS62PXX HIGH SPEED FAMILY
14-Bit Family
12-Bit Family
11-Bit Family
250 MSPS
ADS62P49
ADS62P29
210 MSPS
ADS62P48
ADS62P28
200 MSPS
ADS62C17
DESCRIPTION
The ADS62Px9/x8 is a family of dual channel 14-bit and 12-bit A/D converters with sampling rates up to 250
MSPS. It combines high dynamic performance and low power consumption in a compact 64 QFN package. This
makes it well-suited for multi-carrier, wide band-width communications applications.
The ADS62Px9/x8 has gain options that can be used to improve SFDR performance at lower full-scale input
ranges. It includes a dc offset correction loop that can be used to cancel the ADC offset. Both DDR LVDS
(Double Data Rate) and parallel CMOS digital output interfaces are available.
It includes internal references while the traditional reference pins and associated decoupling capacitors have
been eliminated. Nevertheless, the device can also be driven with an external reference. The device is specified
over the industrial temperature range (–40°C to 85°C).
AT 170MHZ INPUT
SFDR, dBc
0 dB gain
6 dB gain
SINAD, dBFS
0 dB gain
6 dB gain
Analog Power, W
Performance Summary
ADS62P49
75
82
69.8
66.5
1
ADS62P48
78
84
70.1
66.3
0.92
ADS62P29
75
82
68.3
65.8
1
ADS62P28
78
84
68.7
65.8
0.92
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.
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 © 2009, Texas Instruments Incorporated