16-Bit, 105Msps Low-Noise ADC Achieves 81.2dB SNR at Half the Power 1200mW
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 also features an optional internal dither circuit for improved SFDR performance for low-level input signals. Both features, only offered in Linear Technology ADCs, enhance the LTC2217’s overall distortion performance in high sensitivity receiver applications.
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 ADCs are well suited for communications applications, ATE, as well as high-end medical imaging equipment.
In addition to the new low-noise ADCs introduced today, Linear Technology currently offers a 16-bit, high performance ADC family sampling from 10Msps to 105Msps with CMOS outputs in a 7mm x 7mm QFN package. Linear’s entire high-speed ADC portfolio features industry-leading AC performance, extremely low power consumption and pin-compatibility, providing easy migration from 10-bit to 12- or 14-bits, at various sample rates. All these ADCs can sample as low as 1Msps and as high as the specified maximum sampling rate. The system footprint of the whole ADC family is exceptionally small, compared to competitive products since fewer external bypass capacitors are needed.
Summary of Features: LTC2217 Low-Noise ADC Family
- Sample Rate: 105Msps/80Msps/65Msps
- 80.4dB SNR up to 70MHz Input
- 92dB SFDR up to 70MHz Input
- Low Power Dissipation: 1190mW/970mW/700mW
- 85fsRMS Jitter
- 2.75Vp-p Input Range
- Optional Internal Dither
- Optional Data Output Randomizer
- LVDS or CMOS Outputs
- 400MHz Full Power Bandwidth S/H
- Single 3.3V Supply
- CMOS Output Supply Voltage Range: 0.5V to 3.6V
- Shutdown Mode
- Clock Duty-Cycle Stabilizer
- 64-pin, 9mm x 9mm QFN Package
- Pin Compatible Family
LINEAR TECHNOLOGY GmbH
Linear Technology Corporation, a manufacturer of high performance linear integrated circuits, was founded in 1981, became a public company in 1986 and joined the S&P 500 index of major public companies in 2000. Linear Technology products include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, uModule(TM) products, and many other analog functions. Applications for Linear Technology's high performance circuits include telecommunications, cellular telephones, networking products such as optical switches, notebook and desktop computers, computer peripherals, video/multimedia, industrial instrumentation, security monitoring devices, high-end consumer products such as digital cameras and MP3 players, complex medical devices, automotive electronics, factory automation, process control, and military and space systems. For more information, visit www.linear.com.
LT, LTC, LTM, Burst Mode and are registered trademarks and uModule is a trademark of Linear Technology Corp. All other trademarks are the property of their respective owners.
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