Mansfield, Mass. Datel Inc.'s ADSD-1410 is a contemporary, analog-signal-processing (ASP), multi-chip module (MCM). Technologically, the ADSD-1410 uses active laser trimming of thin-film resistors to weave different semiconductor chips fabricated using different semiconductor processes into a single, high-speed, ASP function that exploits the best performance features of each chip and each process technology.
Functionally, the ADSD-1410 is a dual, 14-bit, 10 MHz, sampling analog-to-digital converter (A/D converter) with buffered outputs. It has two input channels (A and B); two wideband (30 MHz) sample-hold (S/H) amplifiers; and two, independently clocked, 14-bit 10 Msamples/s A/D converters.
The ADSD-1410 is housed in a single, 28-pin, double-DIP, ceramic package. The unit employs a proprietary gate array that provides all the timing and control logic necessary to operate each converter from a single, edge-triggered, start-convert pulse. Consequently, both the A/D converters can be run independently at 10 MHz each, and alternating blocks of data can be clocked from the three-state output buffer continuously at 20 MHz.
Within the ADSD-1410's single-package multi-chip layout, Datel's designers have optimized signal-return and analog-digital-ground paths as well as provided localized capacitive decoupling to obtain 150µV rms noise levels. Consequently, signal-to-noise ratio (SNR), one of the most important specifications for imaging applications, is specified at 78 dB. Additionally, the use of all high-bandwidth analog components results in a total harmonic distortion (THD) of -80dB.
Applications for the ADSD-1410 include numerous high-end imaging applications (digital X-ray equipment, digital telescopes, military imaging, etc.) and two-channel in-phase and quadrature (I/Q) applications in communications, radar and sonar. The ADSD-1410's large-signal input bandwidth (20 MHz) also makes the product an excellent choice for multi-channel, fast fourier transform (FFT)-based applications such as spectrum analyzers.
The ADSD-1410 consumes just 1.7 W from its three supply rails of ±5 V and +15 volts. The unit is specified for operation over either the commercial or military temperature ranges. Contact Datel for military "high-rel" screening.
Pricing in 500-piece quantities is $482 for the ADSD-1410MC (0 to +70°C), and $732 for the ADSD-1410MM (-55 to +125°C). Delivery for samples for either device is stock to two weeks. Production quantities are available in four to six weeks.
Click here for the ADSD-1410 data sheet
For more information, within the US, please call (800) 233-2765 or (508) 339-3000, and for
visit Datel, a subsidiary of C&D Technologies, on the web at: www.datel.com