AMC7834IRTQR

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AMC7834IRTQR

Integrated Power-Amplifier Monitor and Control System

Packaging

Package | PIN: RTQ | 56
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $16.20
10-24 $15.06
25-99 $14.54
100-249 $12.70
250-499 $12.08
500-749 $11.12
750-999 $9.98
1000+ $9.95

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

Texas Instruments  AMC7834IRTQR

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.