The AMC7908 is a highly integrated
power-amplifier (PA) monitor and control device capable of temperature, current, and
voltage supervision.
The AMC7908 bias controller is based
around eight digital-to-analog converters (DAC) with programmable output ranges. The
eight gate bias outputs are switched on and off through dedicated control pins. The
gate bias switches are designed for fast response and enable correct power
sequencing and protection of depletion-mode transistors, such as GaAs and GaN.
The AMC7908 supervisor is based around
an accurate multichannel analog-to-digital converter (ADC). The device integrates
two high-voltage inputs, two high-side current-sense amplifiers and an accurate
on-chip temperature sensor.
The function integration and wide
operating temperature range make the AMC7908 an excellent choice as an all-in-one,
bias control circuit for the power amplifiers found in RF communication systems. The
flexible DAC output ranges and built-in sequencing features let the device be used
as a biasing controller for a large variety of transistor technologies, such as
LDMOS, GaAs, and GaN.
The AMC7908 is a highly integrated
power-amplifier (PA) monitor and control device capable of temperature, current, and
voltage supervision.
The AMC7908 bias controller is based
around eight digital-to-analog converters (DAC) with programmable output ranges. The
eight gate bias outputs are switched on and off through dedicated control pins. The
gate bias switches are designed for fast response and enable correct power
sequencing and protection of depletion-mode transistors, such as GaAs and GaN.
The AMC7908 supervisor is based around
an accurate multichannel analog-to-digital converter (ADC). The device integrates
two high-voltage inputs, two high-side current-sense amplifiers and an accurate
on-chip temperature sensor.
The function integration and wide
operating temperature range make the AMC7908 an excellent choice as an all-in-one,
bias control circuit for the power amplifiers found in RF communication systems. The
flexible DAC output ranges and built-in sequencing features let the device be used
as a biasing controller for a large variety of transistor technologies, such as
LDMOS, GaAs, and GaN.