Solutions Search - LTC1440 - Ultralow Power Single/Dual Comparator with Reference

LT2940 28V Power to Frequency Converter

Nov 30th 2009
In some environments isolation is necessary for safety or noise reasons. The circuit above shows a power-to-frequency converter using the LT2940. The PMON output alternately charges and discharges a film capacitor, C5. When the voltage on C5 charges to the upper threshold on hysteretic comparator LTC1440, its output flips ...

13uA, 0kHz to 10kHz Voltage to Frequency Converter

Jan 22nd 1997
This circuit converts a 0V to 2.5V input signal to a 0kHz to 10kHz output frequency. The supply current of the circuit is only 6.2uA quiescent and 13.3uA at f=10kHz. The linearity of the circuit is +/-0.03%. PSRR is 10ppm/V and temperature drift is 250ppm/C. ...

LTC6990/LTC1440/LTC1059 Quadrature Sine Wave Oscillator

Jan 1st 1987
This circuit provides a voltage controlled frequency range from 2Hz to 18kHz with 1Vp-p constant putput amplitude. The LTC6990 is a precision silicon oscillator with a programmable frequency range of 488Hz to 2MHz. It can be used as a fixed-frequency or voltage-controlled oscillator (VCO). The LTC6990 is part of the TimerBlox ...