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數據轉換器
整合式與特殊功能資料轉換器
整合式精密 ADC 與 DAC

AMC7834

現行

整合式功率放大器監控和控制系統

立即訂購
產品規格表

AMC7834

現行
產品規格表 立即訂購

產品詳細資料

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
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
VQFN (RTQ) 56 64 mm² (8 mm × 8 mm)
  • 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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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 AMC7834 12-Bit Integrated Power-Amplifier Monitor and Control System with Temperature, Current and Voltage Supervision Capabilities datasheet (Rev. B) PDF | HTML 2016/3/17

設計與開發

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開發板

AMC7834EVM — AMC7834 12 位元整合式功率放大器類比監控和控制 (AMC) 系統評估模組

AMC7834EVM (評估模組) 是一個易於使用的平台，用於評估 12 位元 AMC 產品的功能與性能。  EVM 具有高度整合、低功耗的類比監控和控制系統 AMC7834，可監控電流、溫度和電壓。  AMC 整合多通道 ADC、DAC 與高壓側電流感測放大器，支援 +4V 至 60V 的共模電壓。  EVM 是一個完整的評估套件，包括與 Microsoft Windows™ XP 和 Windows™ 7 作業系統相容的 SDM-USB-DIG 和評估軟體。

使用指南: PDF
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模擬型號

AMC7834 IBIS Model

SLAM239.ZIP (66 KB) - IBIS 模型
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設計工具

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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VQFN (RTQ) 56 Ultra Librarian
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