AD8313ARMZ

The AD8313ARMZ is designed as a complete multistage demodulating logarithmic amplifier that can accurately convert an RF signal at its differ-ential input to an equivalent decibel-scaled value at its dc output. It maintains a high degree of log conformance for signal frequencies from 0.1 GHz to 2.5 GHz and is useful over the range of 10 MHz to 3.5 GHz. The nominal input dynamic range is 65 dBm to 0 dBm (re: 50 ), and the sensitivity can be increased by 6 dB or more with a narrow-band input impedance matching network or a balun. Applications include RF transmitter power amplifier setpoint control and level monitoring and logarithmic amplifier for RSSI measurement cellular base stations, radio link, radar.

AD8313ARMZ has ten features. (1) Wide bandwidth: 0.1GHz to 2.5GHz min. (2) High dynamic range: 70dB to ±3.0dB. (3) High accuracy: ±1.0dB over 65dB range ( 1.9GHz). (4) Fast response: 40 ns full-scale typical. (5) Controller mode with error output. (6) Scaling stable over supply and temperature. (7) Wide supply range: 2.7V to 5.5V. (8) Low power: 40mW at 3V. (9) Power-down feature: 60mW at 3V. (10) Complete and easy to use. That are all the main features.

Some absolute maximum ratings of AD8313ARMZ have been concluded into several points as follow. (1) Its supply voltage would be 5.5V. (2) Its Vout, Vset, PWDN would be 0V, VPOS. (3) Its input power differential (re: 50, 5.5V) would be 25dBm. (4) Its input power single-ended (re: 50, 5.5V) would be 19dBm. (5) Its internal power dissipation would be 200mW. (6) Its JA would be 200°C/W. (7) Its maximum junction temperature would be 125°C. (8) Its operating temperature range would be from -40°C to +85°C. (9) Its storage temperature range would be from -65°C to +150°C. It should be noted that stresses above those listed under absolute maximum ratings may cause permanent damage to the device.

Also some other specifications about AD8313ARMZ. (1) Its specified frequency range would be min 0.1GHz and max 2.5GHz. (2) Its DC common mode voltage would be typ Vpos-0.75V. (3) Its input bias currents would be typ 10uA. (4) Its input impedance would be typ 900||1.1 ||pF. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!