AMC7891

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community AMC7834 SLAS972B – NOVEMBER 2014 – REVISED MARCH 2016 AMC7834 12-Bit Integrated Power-Amplifier Monitor and Control System with Temperature, Current and Voltage Supervision Capabilities 1 Features 1 Eight Monotonic 12-bit DACs With Programmable Ranges – Four Bipolar DACs: –4 to 1 V, –5 to 0 V, and 0 to 5 V – Four Unipolar DACs: 0 to 5 V, and 2.5 to 7.5 V – High Current Drive Capability: up to ±10 mA – Selectable Clamp Voltage Multi-Channel 12-bit SAR ADC – Four External Analog Inputs: 0 to 2.5 V Range – Four Internal Inputs for Bipolar DAC Monitoring – Programmable Out-of-Range Alarms Four High-Side Current-Sense Amplifiers – Common Mode Voltages: 4 to 60 V – Optional Closed-Loop Drain-Current Controller Operation Temperature Sensing Capabilities – Internal Temperature Sensor – Two Remote Temperature-Diode Drivers Internal 2.5 V Reference Four General-Purpose I/O Ports (GPIOs) Low-Power SPI-Compatible Serial Interface – 4-Wire Mode, 1.7 to 3.6 V Operation Operating Temperature Range: –40°C to +125°C Available in a 56-Pin VQFN Package 2 Applications Communications Infrastructure: – Cellular Base Stations – Microwave Backhaul – Optical Networks General-Purpose Monitor and Control Data Acquisition Systems 3 Description The AMC7834 device is a highly-integrated, lowpower, analog monitoring and control solution for power-amplifier (PA) biasing capable of temperature, c...