Product details

Number of ADC channels 8 ADC resolution (Bps) 12 Number of DAC channels 8 DAC resolution (Bps) 12 Temperature sensing Local, Remote Number of GPIOs 4 Interface type SPI Features GPIO, Temp Sensor Operating temperature range (°C) -40 to 125 Rating Catalog ADC sampling rate (ksps) 62.5 ADC analog input range (min) (V) 0 ADC analog input range (max) (V) 2.5 DAC settling time (µs) 10 DAC output full-scale (min) (V) -5 DAC output full-scale (max) (V) 7.5
Number of ADC channels 8 ADC resolution (Bps) 12 Number of DAC channels 8 DAC resolution (Bps) 12 Temperature sensing Local, Remote Number of GPIOs 4 Interface type SPI Features GPIO, Temp Sensor Operating temperature range (°C) -40 to 125 Rating Catalog ADC sampling rate (ksps) 62.5 ADC analog input range (min) (V) 0 ADC analog input range (max) (V) 2.5 DAC settling time (µs) 10 DAC output full-scale (min) (V) -5 DAC output full-scale (max) (V) 7.5
VQFN (RTQ) 56 64 mm² 8 x 8
  • 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
  • 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

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.

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Technical documentation

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Type Title Date
* Data sheet AMC7834 12-Bit Integrated Power-Amplifier Monitor and Control System with Temperature, Current and Voltage Supervision Capabilities datasheet (Rev. B) PDF | HTML 17 Mar 2016
EVM User's guide AMC7834EVM User's Guide (Rev. B) 09 May 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

AMC7834EVM — AMC7834 12-Bit Integrated Power-Amplifier Analog Monitor and Control (AMC) System Evaluation Module

The AMC7834EVM (evaluation module) is an easy to use platform for evaluating the functionality and performance of the 12-bit AMC device.  The EVM features the AMC7834, a highly integrated, low-power, analog monitoring and control system that is capable of current, temperature and voltage (...)

User guide: PDF
Simulation model

AMC7834 IBIS Model

SLAM239.ZIP (66 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
VQFN (RTQ) 56 View options

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