LTC1799IS5#TRMPBF

Programmable Timers And Oscillators Overview

The LTC1799IS5#TRMPBF 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) and spans 1kHz to 33MHz using a three-state DIV input for division ratios of 1, 10, or 100. The device provides a rail-to-rail CMOS output with fast rise/fall times. Frequency accuracy is guaranteed at ≤1.5% error between 5kHz and 20MHz at 25°C, with ±40ppm/°C temperature stability.

Programmable Timers And Oscillators Feature Summary

• Frequency range of 1kHz to 33MHz programmable via a single external resistor
• High accuracy with ≤1.5% frequency error (5kHz to 20MHz at 25°C)
• Three-state DIV input allows division by 1, 10, or 100
• AEC-Q100 qualified for automotive applications

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 IS5 suffix indicates the industrial temperature grade (-40°C to 85°C). Confirm the #TRMPBF suffix corresponds to the mini tape and reel packaging containing 500 pieces. Ensure the specific part number matches the required operating temperature range and packaging format for the target application.

Programmable Timers And Oscillators Selection Notes

Select this component when a low-cost, high-accuracy oscillator is needed without external trim components. Use the formula fOSC = (10MHz * 10k) / (N * RSET) to determine the resistor value, where N is 1, 10, or 100 based on the DIV pin state. Ensure RSET is between 3kΩ and 1MΩ and limit capacitance on the SET pin to less than 10pF for optimal jitter performance.

Programmable Timers And Oscillators Part Context

This part belongs to the LTC1799 family of resistor-set oscillators. The 'I' in the model number designates the industrial temperature range variant. Other variants include the CS5 for commercial range and HS5 for extended industrial range. All share the same functional block diagram and pinout within the TSOT-23 package.

Programmable Timers And Oscillators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.