ADCs provide double data rate LVDS digital outputs.
March 11, 2011 -
Housed in 6 x 6 mm and 9 x 9 mm QFN packages, 12-bit Model LTC2152-14 and 14-bit Model LTC2157-14 are single and dual channel simultaneous sampling ADCs, respectively. Operating from single 1.8 V supply, Model LTC2157-14 consumes 303 mW/channel at 250 MS/sec with SNR performance of 70 dB and SFDR of 90 dB at baseband with 1.5 Vp-p input range. Analog full power bandwidth of 1.25 GHz and ultralow jitter of 0.15 ps RMS enables undersampling of IF frequencies with optimal noise performance.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Linear Technology Corp.
1630 McCarthy Blvd.
Milpitas, CA, 95035
USA
Single/Dual, 14-Bit 250Msps ADC Family Provides High SFDR Undersampling Performance
MILPITAS, CA - Linear Technology Corporation introduces a family of dual and single high IF sampling 14-bit, 170Msps, 210Msps and 250Msps analog-to-digital converters (ADCs) that maintain good SFDR performance at input frequencies up to 900MHz. The LTC2152-14 and LTC2157-14 are single and dual channel simultaneous sampling ADCs, respectively, offering double data rate (DDR) LVDS digital outputs. These ADCs are specifically designed to meet the needs of today's communications systems, where high undersampling capability reduces costs by eliminating downconversion stages.
Operating from a single 1.8V supply, the dual LTC2157-14 consumes 303mWper channel at 250Msps and offers signal to noise ratio (SNR) performance of 70dB and SFDR of 90dB at baseband with an easy-to-drive 1.5Vp-p input range. Pin-compatible speed grade options include 170Msps and 210Msps in 14-bit and 12-bit resolutions. Analog full power bandwidth of 1.25GHz and ultralow jitter of 0.15psRMS enables undersampling of IF frequencies with excellent noise performance.
Available in compact 9mm x 9mm (dual) and 6mm x 6mm (single) QFN packages, the ADCs are offered in commercial or industrial temperature grades. Demonstration boards and samples are immediately available. The 14-bit dual 250Msps LTC2157-14 is priced at $131.57 each in 1,000-piece quantities. The complete product family can be found at: www.linear.com/HSADC.
Summary of Features: LTC2152/LTC2157
o 14-bit/12-Bit, 170/210/250Msps Single/Dual ADCs
o 70dB SNR, 90dB SFDR (14-Bits)
o 605mW (303mW per Channel) at 250Msps
o 1.8V Single Supply Operation
o DDR LVDS Outputs
o Easy-to-Drive 1.5Vp-p Input Range
o 1.25GHz Full Power Bandwidth S/H
o Optional Clock Duty Cycle Stabilizer
o Low Power Sleep & Nap Modes
o Serial SPI Port for Configuration
o Easy Evaluation Using PScope(TM) Tool
About Linear Technology
Linear Technology Corporation, a member of the S&P 500, has been designing, manufacturing and marketing a broad line of high performance analog integrated circuits for major companies worldwide for three decades. The Company's products provide an essential bridge between our analog world and the digital electronics in communications, networking, industrial, automotive, computer, medical, instrumentation, consumer, and military and aerospace systems. Linear Technology produces power management, data conversion, signal conditioning, RF and interface ICs, and µModule® subsystems.
LT, LTC, LTM, µModule and are registered trademarks and PScope is a trademark of Linear Technology Corp. All other trademarks are the property of their respective owners.
North America and General Information
John Hamburger
Tel: (408) 432-1900 ext. 2419
jhamburger@linear.com
Doug Dickinson
Tel: (408) 432 1900 ext. 2233
ddickinson@linear.com
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