Dual 16-bit, 1.6-GSPS, TxDAC+ D/A Converter Synthesizes High-Quality Wideband Signals From Baseband To High Intermediate Frequencies

Analog Devices, Inc. (ADI), a global leader in high-performance signal processing technology and the data converter market share leader*, today introduced the AD9142 dual-channel, 16-bit, 1.6-GSPS D/A converter, which supports high data rates and complex modulation schemes required in communications, test and instrumentation, and defense and aerospace systems.

Featuring an on-chip 32-bit NCO (numerically-controlled oscillator) that allows flexible placement of the IF (intermediate frequency) carrier to optimize system performance, ADI’s AD9142 D/A converter exceeds requirements for applications that use sophisticated DPD (digital pre-distortion) techniques demanding broad signal bandwidths.

The combination of programmable interpolation rate, high sample rates, and fine NCO modulation capability gives system designers flexibility when choosing D/A converter output frequencies. This is especially helpful in meeting four- to six-carrier GSM transmission specifications and other communications standards. Operating with the on-chip PLL (phase-locked loop) at a D/A converter output frequency of 200 MHz, the AD9142 delivers a 79-dB ACLR (adjacent-channel leakage ratio) for six-carrier GSM applications.

The AD9142 includes integrated interpolation filters with selectable interpolation factors of 2, 4, and 8. The dual D/A converter data interface supports word and byte load allowing customers to reduce input pins on lower data rates to save board space, power and cost. The AD9142 is available in a space-saving 72-pin LFCSP (lead-frame chip-scale package).

Pricing, Availability and Complementary Products
Product  

Sample Availability
 

Production Release
 

Resolution (Bits)

 
  Channels  

Sample Rate (GSPS)

 
 

Price Each In 1,000 Quantities
 

Packaging

AD9142
  Now   Now   16   2   1.6   $41.40  

72-lead10x10mmLFCSP

Complementary ADI components include the ADL537x and ADRF670x series quadrature modulators, and the AD9516 14-output clock generator IC.

About Analog Devices

Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices is included in the S&P 500 Index.

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