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Product details

Parameters

ADC input channels (#) 8 ADC resolution (bits) 12 DAC channels 8 DAC: resolution (Bits) 12 Temperature sensing Local, Remote GPIOs 4 Interface type SPI Special function 4 High Common-Mode Current Sensors Operating temperature range (C) -40 to 125 ADC: sampling rate (KSPS) 62.5 ADC: analog input range (Min) (V) 0 ADC: analog input range (Max) (V) 2.5 DAC: settling time (uS) 10 DAC: output full scale (Min) (V) -5 DAC: output full scale (Max) (V) 7.5 open-in-new Find other Integrated precision ADCs & DACs

Package | Pins | Size

VQFN (RTQ) 56 64 mm² 8 x 8 open-in-new Find other Integrated precision ADCs & DACs

Features

  • 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
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Description

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

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet AMC7834 12-Bit Integrated Power-Amplifier Monitor and Control System with Temperature, Current and Voltage Supervision Capabilities datasheet (Rev. B) Mar. 17, 2016
Selection guide TI Components for Aerospace and Defense Guide (Rev. E) Mar. 22, 2017
User guide AMC7834EVM User's Guide (Rev. B) May 09, 2016
Technical articles What happens behind the scenes of RF base stations? – part 3 Jul. 31, 2015
Technical articles What happens behind the scenes of RF base stations? (Part 2) Apr. 24, 2015

Design & development

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

Hardware development

EVALUATION BOARD Download
Description

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 (...)

Features
  • 4 bipolar DACs (-4 to 1V, -5 to 0V, and 0 to 5V)
  • 4 unipolar DACs (0 to +5V, 2.5 to +7.5V)
  • 4 external analog inputs: 0 to +2.5V range
  • 4 high-side current sense amplifiers
  • 2 remote temperature diode drivers
  • Labview based PC evaluation software

Design tools & simulation

SIMULATION MODEL Download
SLAM239.ZIP (66 KB) - IBIS Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
QFN (RTQ) 56 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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