The AMC7834 device is a highly-integrated, low-power, analog monitoring and control
solution for power-amplifier (PA) biasing capable of temperature, current and voltage
supervision.
The device integrates a multi-channel, 12-bit analog-to-digital converter (ADC); eight,
12-bit digital-to-analog converters (DAC); four high-side current-sense amplifiers that can be
optionally set to operate as part of four independent closed-loop drain-current controllers; an
accurate on-chip temperature sensor and two remote temperature-sensor diode drivers; four
configurable general-purpose I/O ports (GPIOs); and an accurate internal reference. The high level
of integration significantly reduces component count and simplifies PA-biasing system
designs.
The function integration and wide operating-temperature range of the device make it
suitable as an all-in-one, low-cost, bias control-circuit for PAs found in multi-channel RF
communication systems. The flexible DAC output ranges and wide common mode voltage current sensors
allow the device to be used as a biasing solution for a large variety of transistor technologies
such as LDMOS, GaAs, and GaN. The AMC7834 feature set is similarly beneficial in general-purpose
monitor and control systems.
For applications that require a different channel-count, additional features, or
converter resolutions, Texas Instruments offers a complete family of analog monitor and control
(AMC) products. For more information, go to www.ti.com/amc.
The AMC7834 device is a highly-integrated, low-power, analog monitoring and control
solution for power-amplifier (PA) biasing capable of temperature, current and voltage
supervision.
The device integrates a multi-channel, 12-bit analog-to-digital converter (ADC); eight,
12-bit digital-to-analog converters (DAC); four high-side current-sense amplifiers that can be
optionally set to operate as part of four independent closed-loop drain-current controllers; an
accurate on-chip temperature sensor and two remote temperature-sensor diode drivers; four
configurable general-purpose I/O ports (GPIOs); and an accurate internal reference. The high level
of integration significantly reduces component count and simplifies PA-biasing system
designs.
The function integration and wide operating-temperature range of the device make it
suitable as an all-in-one, low-cost, bias control-circuit for PAs found in multi-channel RF
communication systems. The flexible DAC output ranges and wide common mode voltage current sensors
allow the device to be used as a biasing solution for a large variety of transistor technologies
such as LDMOS, GaAs, and GaN. The AMC7834 feature set is similarly beneficial in general-purpose
monitor and control systems.
For applications that require a different channel-count, additional features, or
converter resolutions, Texas Instruments offers a complete family of analog monitor and control
(AMC) products. For more information, go to www.ti.com/amc.