LT5537EUF

The LT5537EUF is designed as one kind of wide dynamic range RF/IF log detector which operational from below 10MHz to 1000MHz.The lower limit of the operating frequency range can be extended to near DC by the use of an external capacitor. The input dynamic range at 200MHz with ±3dB nonlinearity is 90dB (from-76dBm to 14dBm,single-ended 50 input).The detector output voltage slope is nominally 20mV/dB,and the typical temperature coefficient is 0.01dB/°C at 200MHz.

The LT5537EUF has some features such as:(1)low frequency to 1000MHz operation;(2)83dB dynamic range with ±1dB nonlinearity at 200MHz;(3)sensitivity-76dBm or better at 200MHz;(4)log-linear transfer slope of 20mV/dB;(5)supply voltage range: 2.7V to 5.25V;(6)supply current:13.5mA at 3V;(7)tiny 8-Lead (3mm * 2mm) DFN package.Also it can be used in linear-to-Log signal level conversion,received signal strength indication (RSSI),RF power control,RF/IF power detection,receiver RF/IF gain control and envelope detection,ASK receiver.

The absolute maximum ratings of the LT5537EUF can be summarized as:(1)power supply voltage:5.5V;(2)enable voltage:-0.2V to VCC +0.2V;(3)input power: 22dBm;(4)operating ambient temperature range:-40°C to 85°C;(5)storage temperature range:-65°C to 125°C;(6)maximum junction temperature: 125°C.If you want to know more information about this part,please download the datasheet in www.seekic.com and www.chinaicmart.com .