AMC7834
- 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
- Four Bipolar DACs:
- 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.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | AMC7834 12-Bit Integrated Power-Amplifier Monitor and Control System with Temperature, Current and Voltage Supervision Capabilities datasheet (Rev. B) | PDF | HTML | 2016年 3月 17日 |
EVM User's guide | AMC7834EVM User's Guide (Rev. B) | 2016年 5月 9日 |
設計與開發
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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。
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VQFN (RTQ) | 56 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。