Key facts
- Brand
- Linear Technology
- Model
- LTC690
- Category
- Other Electronics
- Documents
- 3
- Languages
- EN
- Last added
- 2012-05-09
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Linear Technology LTC6900 Datasheet
The LTC6900 is a precision, low‑power oscillator that operates from a single 2.7 V to 5.5 V supply and provides a rail‑to‑rail, 50 % duty‑cycle square‑wave output. Frequency is set by one external resistor (10 kΩ – 2 MΩ) and can be divided by 1, 10 or 100 using the three‑state DIV pin.
Typical applications include portable equipment, cell phones, charge‑pump drivers, clock references for switching power supplies, and replacements for crystal or ceramic oscillators. The device offers +40 ppm/°C temperature stability, <1.5 % frequency error, and fast start‑up times of 50 µs to 1.5 ms.
Linear Technology LTC690 specifications
| Supply Voltage (V+) | 2.7 V to 5.5 V |
|---|---|
| Frequency Range | 1 kHz to 20 MHz |
| Typical Supply Current | 0.32 mA (5 V) / 0.29 mA (3 V) |
| Temperature Stability | ±40 ppm/°C |
| Frequency Accuracy | < 1.5 % (5 kHz‑10 MHz) |
| Duty Cycle | 50 % ± 1 % (1 kHz‑2 MHz) / 50 % ± 5 % (2 MHz‑10 MHz) |
| Start‑up Time | 50 µs to 1.5 ms |
| Package | 5‑Lead Plastic TSOT‑23 (ThinSOT) |
All Linear Technology LTC690 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What supply voltage range does the LTC6900 operate from?
It operates from a single supply voltage between 2.7 V and 5.5 V.
What is the typical start‑up time of the LTC6900?
The device typically starts up in 50 µs to 1.5 ms, depending on the resistor value.
What is the frequency range of the LTC6903/LTC6904?
The devices generate square‑wave outputs from 1 kHz up to 68 MHz.
From: Linear Technology LTC6903/LTC6904 Programmable Oscillator Datasheet
What supply voltage does the LTC6903/LTC6904 require?
They operate from a single supply of 2.7 V to 5.5 V.
From: Linear Technology LTC6903/LTC6904 Programmable Oscillator Datasheet