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12-Bit 500MSPS A-D Converter Delivers Low Power Consumption in a Miniature Package

Tue, 08/03/2010 - 12:37pm
12 bit adcIntersil introduced a family of 8-, 10- and 12-bit 500MSPS analog to digital (ADC) converters. The lead product, the 12-bit, ISLA112P50IRZ 500MSPS converter, features power consumption of 468 milliWatts – said to be five times lower than any competing 12-bit 500MSPS ADC. The lower power consumption enables designers to integrate multiple ADCs in a single system without the thermal challenges normally associated with using high-speed ADCs. This converter uses the company’s FemtoCharge technology on a standard CMOS process. The ISLA112P50 uses a pair of time-interleaved 250 MSPS ADCs to generate its 500 MSPS sample rate. The new IC also features the Intersil Interleave Engine (I2E) technology, which performs automatic fine correction of offset, gain and sample time skew mismatches between unit ADCs to ensure high performance. Analog input bandwidth is 1.15GHz; signal-to-noise ratio (SNR) is 65.8 dBFS; and SFDR is 80dBc for an input frequency of 190 MHz. The device incorporates nap/sleep modes, and digital

Intersil Corp.
408-432-8888, www.intersil.com
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