Shunt Voltage References
Shunt voltage references operate in a manner that is functionally equivalent to a Zener diode. The bias current must be set higher than the sum of the maximum quiescent current and the maximum expected load current. Since shunt voltage references are typically biased with a resistor, they can operate on a wide range of input voltages.
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LT5517 - 40MHz to 900MHz Quadrature Demodulator
The LT®5517 is a 40MHz to 900MHz quadrature demodulator optimized for high linearity receiver applications where high dynamic range is important. It is suitable for communications receivers where an RF or IF signal is directly converted into I and Q baseband signals with a bandwidth up to 130MHz. The LT5517 incorporates balanced I and Q mixers, LO buffer amplifiers and a precision, broadband quadrature generator derived from an on-chip divide-by-two circuit.
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