LTC1799IS5#TRPBF

Programmable Timers And Oscillators Overview

The LTC1799IS5#TRPBF is a precision silicon oscillator from Analog Devices, housed in a 5-lead TSOT-23 package. It operates on a single 2.7V to 5.5V supply with a typical current of 1mA. The frequency is set by a single external resistor (RSET) ranging from 3kΩ to 1MΩ, covering an output range of 1kHz to 33MHz via a three-state DIV input for division factors of 1, 10, or 100. Key electrical parameters include a frequency error of ≤1.5% at 25°C and ±40ppm/°C temperature stability. The device features fast start-up (<1ms), rail-to-rail CMOS output, and AEC-Q100 qualification for automotive use.

Programmable Timers And Oscillators Feature Summary

• Frequency programmable via single external resistor (RSET) with linearized feedback loop
• Three-state DIV input allows division by 1, 10, or 100 for extended frequency range
• AEC-Q100 qualified for automotive applications
• Low profile 1mm TSOT-23 package with <1ms start-up time

Programmable Timers And Oscillators Applications

• Switching power supply clock reference
• Clocking switched capacitor filters
• Fixed crystal oscillator replacement
• Ceramic oscillator replacement

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix #TRPBF indicates standard tape and reel packaging. Confirm the 'I' grade designation matches the required -40°C to 85°C operating temperature range for the target application environment.

Programmable Timers And Oscillators Selection Notes

Select this component when a low-cost, precision oscillator is needed without external trim components. Ensure the RSET value falls within the recommended 10kΩ to 200kΩ range for optimal accuracy and power consumption. Consider the DIV pin configuration to achieve the desired master oscillator frequency.

Programmable Timers And Oscillators Part Context

This part belongs to the LTC1799 family of resistor-set oscillators. The IS5 variant specifically denotes the industrial temperature grade (-40°C to 85°C) packaged in the thin SOT-23 form factor. Other variants include the CS5 (commercial) and HS5 (extended temperature) grades.

Programmable Timers And Oscillators Replacement Considerations

Direct replacements within the same package and function include LTC1799CS5#TRPBF and LTC1799HS5#TRPBF, differing primarily in operating temperature ranges.