LTC1799 Series

1kHz to 33MHz Resistor Set SOT-23 Oscillator

Catalog

1kHz to 33MHz Resistor Set SOT-23 Oscillator

Part	Type	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Min]	Voltage - Supply [Max]	Frequency [Min]	Frequency [Max]	Package / Case	Current - Supply
Analog Devices LTC1799CS5#TRPBF	Oscillator Silicon	Surface Mount	70 °C	0 °C	2.7 V	5.5 V	1 kHz	33 MHz	SOT-23-5 Thin TSOT-23-5
Analog Devices LTC1799HS5#WTRPBF	Oscillator Silicon	Surface Mount	125 °C	-40 °C	2.7 V	5.5 V	1 kHz	33 MHz	SOT-23-5 Thin TSOT-23-5	700 µA
Analog Devices LTC1799HS5#TRPBF	Oscillator Silicon	Surface Mount	125 °C	-40 °C	2.7 V	5.5 V	1 kHz	33 MHz	SOT-23-5 Thin TSOT-23-5
Analog Devices LTC1799IS5#TRMPBF	Oscillator Silicon	Surface Mount	85 °C	-40 °C	2.7 V	5.5 V	1 kHz	33 MHz	SOT-23-5 Thin TSOT-23-5

Catalog

1kHz to 33MHz Resistor Set SOT-23 Oscillator

Key Features

• One External Resistor Sets the Frequency

• Fast Start-Up Time: <1ms

• 1kHz to 33MHz Frequency Range

• Frequency Error ≤1.5% 5kHz to 20MHz (TA= 25°C)

• Frequency Error ≤2% 5kHz to 20MHz (TA= 0°C to 70°C)

• ±40ppm/°C Temperature Stability

• 0.05%/V Supply Stability

• 50% ±1% Duty Cycle 1kHz to 2MHz

• 50% ±5% Duty Cycle 2MHz to 20MHz

• 1mA Typical Supply Current

• 100Ω CMOS Output Driver

• Operates from a Single 2.7V to 5.5V Supply

• Low Profile (1mm) SOT-23 (ThinSOT™Package)

• AEC-Q100 Qualified for Automotive Applications

Description

The LTC1799 is a precision oscillator that is easy to use and occupies very little PC board space. The oscillator frequency is programmed by a single external resistor (RSET). The LTC1799 has been designed for high accuracy operation (≤1.5% frequency error) without the need for external trim components.The LTC1799 operates with a single 2.7V to 5.5V power supply and provides a rail-to-rail, 50% duty cycle square wave output. The CMOS output driver ensures fast rise/fall times and rail-to-rail switching. The frequency-setting resistor can vary from 3k to 1M to select a master oscillator frequency between 100kHz and 33MHz (5V supply). The three-state DIV input determines whether the master clock is divided by 1, 10 or 100 before driving the output, providing three frequency ranges spanning 1kHz to 33MHz (5V supply). The LTC1799 features a proprietary feedback loop that linearizes the relationship between RSETand frequency, eliminating the need for tables to calculate frequency.ApplicationsLow Cost Precision OscillatorSwitching Power Supply Clock ReferenceClocking Switched Capacitor FiltersFixed Crystal Oscillator ReplacementCeramic Oscillator Replacement