MAX4003EUA

Product Summary

The MAX4003EUA low-cost, low-power logarithmic amplifier is designed to detect the power levels of RF power amplifiers (PAs) operating from 100MHz to 2500MHz. A typical dynamic range of 45dB makes this logarithmic amplifier useful in a variety of wireless applications including cellular handset PA control, TSSI for wireless terminal devices, and other transmitter power measurements. This logarithmic amplifier provides much wider measurement range and superior accuracy than typical diode-based detectors. Excellent temperature stability is achieved over the full operating range of -40℃ to +85℃. The MAX4003EUA logarithmic amplifier is a voltage-measuring device with a typical signal range of -58dBV to -13dBV. The input signal is internally AC-coupled by an on-chip 5pF capacitor in series with a 2kΩ resistance. This highpass coupling, with a corner at 16MHz, sets the lowest operating frequency and allows the input signal source to be DC grounded. The MAX4003EUA also features a power-on delay, which holds the detector output (OUT) low for approximately 5 μs to ensure glitchless controller output. The MAX4003EUA is available in an 8-bump chip-scale package (UCSP), an 8-pin μMAX package, and an 8-pin thin QFN package. The device consumes 5.9mA with a 3.0V supply and only 13μA when the device is in shutdown.

Parametrics

Absolute Maximum Ratings: (1)VCC to GND: -0.3V to +5.25V; (2)SHDN , CLPF to GND: -0.3V to (VCC + 0.3V); (3)RFIN: +6dBm; (4)OUT Short Circuit to GND: 10s; (5)Power Dissipation (TA = +70℃) of 8-Bump UCSP (derate 4.7mW/℃ above +70℃): 379mW; (6)Power Dissipation (TA = +70℃) of 8-Pin μMAX (derate 4.5mW/℃ above +70℃): 362mW; (7)Power Dissipation (TA = +70℃) of 8-Pin Thin QFN (derate 24.4mW/℃ above +70℃): 1951mW; (8)Operating Temperature Range: -40℃ to +85℃; (9)Junction Temperature: +150℃; (10)Storage Temperature Range: -65℃ to +150℃; (11)Lead Temperature (soldering, 10s): +300℃.

Features

Features: (1)Complete RF Detector; (2)Frequency Range from 100MHz to 2500MHz; (3)Input Range of -58dBV to -13dBV (-45dBm to 0dBm into 50dBm); (4)Fast Response: 70ns in 10dB Steps; (5)Low-Current Consumption: 5.9mA at VCC = 3.0V; (6)13μA (typ) Shutdown Current; (7)Available in 8-Bump UCSP or 8-Pin μMAX and Thin QFN Packages.

Diagrams