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16-bit successive-approximation ADC includes LVDS interface

Dallas&#8212Texas Instruments says its ADS84xx is the industry's first 16-bit, successive approximation (SAR) analog-to-digital converter (ADC) family to include a serial low-voltage differential signaling (LVDS) interface. The low-noise 2 Msps ADS8413 and ADS8410, suited for high-speed, high-precision applications such as medical instrumentation, communications, data acquisition, and closed-loop systems, provide data transfer of up to 200 Mbps.

The ADS8413 has a pseudo-bipolar, differential input and features -107 dB total harmonic distortion (THD), 92 dB signal-to-noise ratio (SNR), and &plusmn1 LSB integral nonlinearity (INL). The ADS8410 has a unipolar, single-ended input and features -98dB THD, 87.5dB SNR and &plusmn1 LSB INL.

The LVDS interface supports daisy chaining or cascading of multiple devices on the same bus. Both devices feature low power dissipation (290 mW) at 2MSPS and offer two additional power-saving modes. When used at lower throughput rates, the “nap” mode enables substantial power-saving options. When not in use, a hardware power-down mode helps conserve energy (5 microwatts).

The company provides customers with an advanced signal chain solution for high-speed, high-precision applications including wideband amplifiers, such as the THS4031, to drive the analog inputs of the ADC; and deserializers, such as the SN65LVDS152, to convert serial LVDS into parallel data.

Click here for the product datasheet. The ADS8413 and ADS8410 come in 48-pin QFN packages. The ADS8413 is priced at $24.05 in 1,000-piece quantities; the ADS8410 is priced at $23 (suggested resale pricing). Evaluation modules (EVMs) are also available.

Texas Instruments , 1-800-477-8925, www.ti.com

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