Analog Devices Inc

Analog Devices®6991 Silicon Oscillator

Analog Devices' LTC6991 is part of the TimerBlox™ family

Image of Analog Devices' LTC6990 TimerBlox Analog Devices' LTC6991 is a silicon oscillator with a programmable period range of 1.024 ms to 9.54 hours (29.1 μHz to 977 Hz) that is specifically intended for long duration timing events. The LTC6991 is part of the TimerBlox family of versatile silicon timing devices.

A single resistor, RSET, programs the LTC6991's internal master oscillator frequency. The output clock period is determined by this master oscillator and an internal frequency divider, NDIV, programmable to eight settings from 1 to 221.

Features
  • Internal oscillator
  • No crystal
  • No timing caps
  • Simple setup using 1 to 3 resistors
  • Period range: 1 ms to 9.5 hours
  • < 1.5% maximum error
  • Square wave output with 50% duty cycle
  • Output reset function
  • 55 µA to 80 µA supply current
  • 500 µs start-up time
  • 2.25 V to 5.5 V single supply operation
  • CMOS output driver sources / sinks 20 mA
  • -40°C to +125°C operating temperature range

LTC6991

ImageManufacturer Part NumberDescriptionAvailable QuantityPrice
IC OSC SILICON PROG 6-DFNLTC6991CDCB#TRMPBFIC OSC SILICON PROG 6-DFN403 - Immediate$46.89View Details
IC OSC SILICON PROG TSOT23-6LTC6991CS6#TRMPBFIC OSC SILICON PROG TSOT23-62099 - Immediate$46.89View Details
IC OSC SILICON PROG TSOT23-6LTC6991IS6#TRMPBFIC OSC SILICON PROG TSOT23-6285 - Immediate$51.71View Details
IC OSC SILICON PROG TSOT23-6LTC6991HS6#TRMPBFIC OSC SILICON PROG TSOT23-63 - Immediate$59.55View Details
Published: 2012-06-29

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TimerBlox - Simple VCO, PWM, One Shot, Delay, POR, and Low Frequency Clock Timing Devices The key technical features and typical application circuit for the TimerBlox family of timing devices.