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Solutions Search - Reference Plus Comparator or Amplifier

High Accuracy, μPower, Over-Voltage Detector with Glitch Suppressor Using LTC1541 and LTC6994

May 4th 2016
An overvoltage detector which suppresses glitches is constructed from the LTC®1541 micropower op amp + comparator + voltage reference and LTC6994-1 TimerBlox® delay block/debouncer. In this circuit, the LTC1541 comparator detects power rail overvoltage conditions (including glitches). The built-in op amp inverts this ...

Circuit LTspice 

 

LTC4000 48V to 10.8V at 10A Buck Converter 3-Cell LiFePO4 Battery Charger with 2.9h Termination Timer, 1.25A Trickle Charge Current and Charging PFET Thermal Protection

Sep 23rd 2014
The LTC®4000 is a high voltage, high performance controller that converts many externally compensated DC/DC power supplies into full-featured battery chargers. ...

Circuit 

 

LT2940 1-Cell Monitor with Bottom-Side Sense

Nov 30th 2009
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

Circuit 

 

LT2940 Adjustable 0W to 10W Load Box with UVLO and Thermal Shutdown

Nov 30th 2009
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

Circuit 

 

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 ...

Circuit 

 

Pilot Light Flame Detector with Low-Battery Lockout using a Type R Thermocouple

Sep 22nd 1997
The LTC1541 combine a micropower amplifier, comparator and bandgap reference in an 8-pin package. The part operates from a single 2.5V to 12.6V or dual ±1.25V to ±6.3V supply with a typical supply current of 5µA. Both the op amp and comparator feature a common mode input voltage range that extends from the negative supply ...

Circuit 

 

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 ...

Circuit