LTC6908IS6-1#TRM

Programmable Timers And Oscillators Overview

The LTC6908IS6-1#TRM is a precision silicon oscillator from Analog Devices, housed in a 6-lead TSOT-23 package. It provides two complementary square wave outputs (OUT1 and OUT2) with a 180-degree phase shift. The oscillation frequency is set by a single external resistor connected to the SET pin, covering a range of 50kHz to 10MHz. Key electrical parameters include a supply voltage range of 2.7V to 5.5V, typical supply current of 400µA at 50kHz, and frequency accuracy within ±1.5% at 25°C. The device features optional spread spectrum frequency modulation (SSFM) for improved EMC performance.

Programmable Timers And Oscillators Feature Summary

• Dual complementary outputs (LTC6908-1) shifted by 180 degrees
• Frequency programmable via a single external resistor (RSET)
• Spread spectrum frequency modulation (SSFM) with fixed ±10% spreading
• Low power consumption: 400µA typical at V+ = 5V, fOUT = 50kHz
• Fast start-up time: 260µs typical at 1MHz

Programmable Timers And Oscillators Applications

• Switching power supply clock reference
• Precision programmable oscillator circuits
• Charge pump driver applications
• Portable and battery-powered equipment

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix #TRM indicates a tape and reel quantity of 500 pieces as per the datasheet ordering information. Confirm that the IS6 temperature grade (-40°C to 85°C specified) matches the operational requirements of the target environment. Ensure the component source is an authorized distributor to guarantee authenticity and traceability.

Programmable Timers And Oscillators Selection Notes

Select the LTC6908IS6-1 variant when complementary (180° phase-shifted) outputs are required for driving dual switching regulators or charge pumps. Choose this model over the IS6-2 if quadrature (90°) outputs are not needed. Ensure the RSET resistor value falls within the recommended 20kΩ to 400kΩ range for optimal frequency accuracy and stability.

Programmable Timers And Oscillators Part Context

This component belongs to the LTC6908 family of resistor-set silicon oscillators. The 'IS6' designation identifies it as the industrial temperature grade version (-40°C to 85°C) packaged in a thin TSOT-23 form factor. The '-1' suffix distinguishes it from the '-2' variant by providing complementary rather than quadrature output phases.

Programmable Timers And Oscillators Replacement Considerations

Direct functional replacements within the same package and specification include the LTC6908CS6-1#TRM (commercial grade) and LTC6908HS6-1#TRM (high-temperature grade). Verify that the temperature range of the substitute meets the application's environmental constraints.