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LNA comes in 8-pin MSOP package

Posted: 15 Sep 2011     Print Version  Bookmark and Share

Keywords:LNA  op amp  SAR ADC 

Linear Technology Corp. releases LTC6360, a low-noise amplifier (LNA) that can drive to 0V while maintaining high linearity on a single 5V supply. Compared to typical rail-to-rail output single-supply amplifiers that can only swing to within a few hundred millivolts of ground, the LTC6360 offers improved linearity and dynamic range in applications that benefit from a true zero output swing.

According to the company, the LTC6360 is a high speed high precision amplifier that is suitable for driving 16- and 18bit SAR ADCs. The LTC6360's integrated ultra-low noise charge pump provides an internal negative rail that removes the need for a negative supply. Compared to typical rail-to-rail output single-supply amplifiers that can only swing to within a few hundred millivolts of ground, the LTC6360 offers improved linearity and dynamic range in applications that benefit from a true zero output swing.

LTC6360

The LTC6360's integrated low noise charge pump maximises 16- and 18bit SAR ADC dynamic range.

The device has an input offset voltage less than 250µV Max and 2.3nV/√Hz noise density. It settles to 16bits in 150ns and achieves a closed loop -3dB bandwidth of 250MHz. Additionally, the LTC6360 has -103dBc/-109dBc harmonic distortion (HD2/HD3) at fIN=40kHz. The LNA is also unity gain stable, allowing it to be used as a buffer to achieve the lowest output noise, Linear Tech noted. The output is designed to drive a series 10Ω resistor and 330pF capacitor filter network, although larger load capacitances can be driven, added the company.

The LTC6360 is available in MSOP and 3x3mm DFN 8-pin packages and is fully specified over the commercial (0°C to 70°C), industrial (-40°C to 85°C) and extended (-40°C to 125°C) temperature ranges. Prices start at Rs.98.21 ($2.19) each in 1,000 piece quantities.





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