
The LTC5587's +/- 1dB accuracy over a 40dB dynamic range and over the full temperature range from -40°C to 85°C offers best-in-class performance. Combined with a 12-bit A/D converter, the device provides 0.014dB per bit measurement resolution. Its low power consumption is ideal for applications in cellular basestations, picocells, and femtocells supporting all standards including LTE, W-CDMA, TD-SCDMA, CDMA/2k, GSM/EDGE and WiMAX. Other applications include MIMO radios, repeaters, point-to-point microwave links, military radios with complex modulation, remote power measurements, and portable test and measurement instruments. The detector is particularly useful in FPGA-based systems where no A/D converters are available.
The LTC5587 is powered from a single 3.3V supply. During sampling mode, its total operating current is 3mA, consuming only 10mW of power. Its consumption is further reduced by one-half when the ADC is idled, making the LTC5587 suitable for battery powered or portable remote RF measurement systems. The device also has shutdown capability, drawing less than 10uA supply current when disabled. The LTC5587 is offered in a small 3mm x 3mm 12-pin DFN package, providing a compact solution footprint.
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