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Linear Tech 12-bit ADC samples 50MSa/s

Posted: 12 May 2003 ?? ?Print Version ?Bookmark and Share

Keywords:Linear technology? ltc1743? adc? analog digital converter? analog signal converter?

The LTC1743 12-bit ADC of Linear Technology Corp. samples at 50MSa/s and is designed to digitize high-frequency, wide dynamic range signals used in communications and high definition imaging applications.

Available as a 48-pin TSSOP device, the ADC exhibits an SNR of 72.5dB and SFDR of 85dB (5MHz). When undersampling 70MHz input signals, the LTC1743 delivers 69.5dB SNR and 73dB SFDR, enabling direct IF communications applications.

The device offers the flexibility to configure the input and the output specifically for the application. With a 11V span, the LTC1743 delivers 71dB SNR and 90dB SFDR. With a 11.6V span, it delivers 72.5dB SNR and 85dB SFDR. A separate digital output supply pin allows easy connection to low voltage DSPs and FIFOs and the digital output includes an input overflow indication bit.

It operates from a single 5V supply and dissipates 1W. The ADC is screened for both the commercial and industrial temperature ranges. Pricing begins at $9.30 each in 1,000-piece quantities.

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