MICRF300
MICRF300: 100MHz to 1000MHz, 1.8 to 3.6V Low-Noise Amplifier with Shutdown
| Key Features |
- 1.8V to 3.6V supply voltage range
- 2.5mA operating supply current
- 1μA (Max) shutdown current over temperature
- 18.3dB gain at 315MHz/433.92MHz
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- 1.15dB noise figure at 315MHz/433.92MHz
- -25dBm input P1dB compression point at 433.92MHz
- -40°C to +125°C operating temperature range
- Small 6-pin SC70 package
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| Applications |
- Security systems
- Remote keyless entry (RKE)
- Tire pressure monitoring (TPMS)
- Automated meter reading (AMR)
- Garage door openers (GDO)
- Remote weatherstations
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| General Description |
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The MICRF300 is a low-noise amplifier (LNA) with low-power shutdown mode, which operates over the 100MHz to 1000MHz frequency band. The device is targeted for low-power, low-data rate applications at 315/433MHz, achieving a low 1.2dB noise figure with 18dB of gain, helping to improve receiver noise figure and sensitivity. The device also performs well at 868/915MHz, achieving 13dB of gain and a noise figure of 1.7dB. The device requires a simple input matching network and output matching network to optimize performance for the desired frequency band.
The MICRF300 operates over the 1.8V to 3.6V voltage range. Consuming a low 2.5mA of supply current during operation and a typical 50nA of shutdown current, the MICRF300 is an ideal solution for battery powered equipment. The device is available in 6-pin SC70 package and is rated to operate over the -40°C to +125°C temperature range.
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| Part Number | Temperature Range | Package |
| MICRF300YC6 | -40°C to +125°C | SC70-6 |
1. Under bar symbol (_) may not be to scale.
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