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TI ships fastest 16-bit SAR ADCs

Posted: 17 Jan 2003 ?? ?Print Version ?Bookmark and Share

Keywords:texas instruments? ads8401? ads8402? sar adc? analog digital converter?

Texas Instruments Inc. has introduced a pair of 16-bit SAR data converters - which the company claims to be the industry's fastest 16-bit SARD ADC - and is targeted for applications including medical imaging, portable medical instrumentation, high-speed data acquisition, wired communications, and optical networking.

The ADS8401 and ADS8402 ADCs sample at 1.25MSa/s and offer true 16-bit no-missing code performance, aside from a power dissipation of 155mW. They also have 2LSB linearity, 0.25mV offset voltage, and 90dB SNR. In addition, the SAR architecture offers no latency, as compared to pipeline and delta-sigma architectures.

Part of the company's Burr-Brown product line, the ADS8401 offers a pseudo-differential, unipolar input range, while the ADS8402 uses unipolar differential inputs with a bipolar range, which are common to many high speed ADCs. Both devices offer a full 16-bit interface and an 8-bit option when data is read using two 8-bit cycles, if necessary.

The devices come in 48-lead TQFPs and are priced starting at $11.95 in 1,000-piece quantities.

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