MAX11014, MAX11015 Automatic RF MESFET Amplifier Drain-Current Controllers

The MAX11014 MAX11015 set and control bias conditions for dual MESFET power devices found in point-to-point Communication and other Microwave base stations. The MAX11014 integrates complete dual Analog closed-loop drain-current controllers for Class A MESFET Amplifier operation, while the MAX11015 targets Class AB operation. Both devices integrate SRAM lookup tables (LUTs) that CAN be used to store temperature and drain-current compensation data.
Each device includes dual high-side current-sense Amplifiers to monitor the MESFET drain currents through the voltage drop across the sense resistors in the 0 to 625mV range. External diode-connected Transistors monitor the MESFET temperatures while an internal Temperature Sensor measures the local die temperature of the MAX11014 MAX11015. The internal DAC sets the voltages across the current-sense resistors by controlling the Gate voltages. The internal 12-bit SAR ADC digitizes internal and external temperature, internal DAC voltages, current-sense Amplifier voltages, and external Gate voltages. Two of the 11 ADC channels are available as general-purpose Analog inputs for Analog system monitoring.
The MAX11014 's gate-drive Amplifier functions as an integrator for the Class A drain-current control loop while the MAX11015 's gate-drive Amplifier functions with a gain of -2 for Class AB applications. The current-limited gate-drive Amplifier CAN be fast clamped to an external voltage independent of the digital input from the serial Interface Both the MAX11014 and the MAX11015 include self-calibration modes to minimize error over time, temperature, and supply voltage.
The MAX11014 MAX11015 feature an internal reference and CAN operate from separate ADC and DAC external references. The internal reference provides a well-regulated, low-noise +2.5V reference for the ADC DAC and Temperature Sensors These integrated circuits operate from a 4-wire 20MHz SPI"-/MICROWIRE"-compatible or 3.4MHz IC-compatible serial Interface (pin-selectable). Both devices operate from a +4.75V to +5.25V Analog supply (2.8mA typical supply current), a +2.7V to +5.25V digital supply (1.5mA typical supply current), and a -4.5V to -5.5V negative supply (1.1mA supply current). The MAX11014 MAX11015 are available in a 48-pin thin QFN package specified over the -40C to +105C temperature range.
By Maxim Integrated Products
MAX11015 's PackagesMAX11015 's pdf datasheet

MAX11015 Pinout, Pinouts
MAX11015 pinout,Pin out
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