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16-bit A/D converter achieves 81.2dB SNR at half the power

Milpitas, Calif.—Linear Technology has introduced the LTC2217, a low noise, high performance 16-bit, 105Msps A/D converter with 81.2dBFS Signal-to-Noise Ratio (SNR) and 100dBc Spurious Free Dynamic Range (SFDR).

Ultra-low jitter helps maintain the high SNR at high input frequencies, yielding 80.4dBFS SNR at 70MHz, while the high linearity sample/hold circuitry allows for low distortion of 92dBFS at 70MHz. The single 3.3V power supply requires less support circuitry than alternative A/D converters that require two supplies.

The LTC2217 provides sampling at 105Msps while consuming 1190mW. The LTC2217 can interface to a variety of digital systems with multiple digital output modes standard LVDS, low power LVDS, straight CMOS and demultiplexed CMOS. Additionally, an easy to use digital output randomizer is available, which can dramatically reduce the effects of digital feedback from the digital outputs to the analog inputs. A separate output power supply allows the CMOS output swing to be as low as 0.5V for further noise enhancement.

The LTC2217 is pin-compatible with the existing 16-bit, 130Msps LTC2208 and 160Msps LTC2209 ADCs. In addition, the 16-bit 80Msps LTC2216, and 65Msps LTC2215 are also available. These low-noise 16-bit A/D converters are well suited for communications applications, ATE, as well as high-end medical imaging equipment.

Pricing: The LTC2217, LTC2216 and LTC2215 are priced at $68.00, $58.00 and $52.00 respectively, in 1,000-piece quantities.
Availability: Now.
Datasheet: click here.

Linear Technology, www.linear.com

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