The AD8340 is a vector modulator from Analog Devices. It works in the frequency range of 700MHz to 1000MHz and can perform arbitrary amplitude and phase modulation.
The AD8340 vector modulator performs arbitrary amplitude and phase modulation of an RF signal over a 700 MHz to 1 GHz frequency range. It can be used as a general‑purpose RF modulator, variable attenuator/phase shifter, or remodulator for applications such as RF PA linearization, CDMA2000, GSM/EDGE amplifiers and smart antennas.
Key specifications include a single‑supply voltage of 4.75 V‑5.25 V, adjustable modulation bandwidth up to 230 MHz, output 1 dB compression point of 11 dBm, and an output noise floor of –149 dBm/Hz. The device is supplied in a 24‑lead RoHS‑compliant LFCSP package and operates from –40 °C to +85 °C.
| Frequency Range | 700 MHz – 1 GHz |
|---|---|
| Supply Voltage | 4.75 V – 5.25 V |
| Modulation Bandwidth | up to 230 MHz |
| Gain Control Range | 30 dB |
| Phase Control Range | 0° – 360° |
| Output 1 dB Compression Point | 11 dBm |
| Output Noise Floor | –149 dBm/Hz (full gain) |
| Package | 24‑lead LFCSP (RoHS‑compliant) |
The AD8340 operates from 700 MHz to 1 GHz.
It requires a single‑supply voltage between 4.75 V and 5.25 V.
The output 1 dB compression point is specified at 11 dBm.
The output noise floor is –149 dBm/Hz when the device is at maximum gain.