DS1870 - Maxim Integrated Products

DS1870 LDMOS RF Power-Amplifier Bias Controller

Features ♦ Two-Channel Solution for Programmable RF Bias Control ♦ The Potentiometer’s Position is Automatically Updated to Compensate for the Ambient Temperature and the Drain Voltage or Current ♦ A Five-Channel, 13-Bit ADC Continuously Monitors the Ambient Temperature, VCC, VD, ID1, and ID2 ♦ Hi/Lo Alarms for Each ADC Channel can Trigger a Fault Output ♦ N.

Features

♦ Two-Channel Solution for Programmable RF Bias Control ♦ The Potentiometer’s Position is Automatically Updated to Compensate for the Ambient Temperature and the Drain Voltage or Current ♦ A Five-Channel, 13-Bit ADC Continuously Monitors the Ambient Temperature, VCC, VD, ID1, and ID2 ♦ Hi/Lo Alarms for Each ADC Channel can Trigger a Fault Output ♦ Nonvolatile Memory for the Device Settings, Lookup Tables, and 32-Bytes of User Memory ♦ I2C™-Compatible Serial Interface with Up to Eight Devices on the Same Serial Bus ♦ Single 5V Power Supply ♦ Small 16-Pin TSSOP Package ♦ -40°C to +95°C Operation.