Texas Instruments AMC7834集成功率放大器监视和控制系统
Texas Instruments AMC7834集成功率放大器(PA)监视和控制系统是高度集成的低功耗器件。 该款功率放大器监视和控制系统能够对温度、电流和电压进行监控。 AMC7834集成了一个多通道、12位模数转换器(ADC)和八通道、12位数模转换器(DAC)。 该控制系统可用作针对多种晶体管技术（包括LDMOS和GaN）的偏置解决方案。 该控制系统的其他特性还包括四个高侧电流感测放大器、温度感测能力以及四个GPIO。 该器件的工作温度范围为-40°C至125°C，采用56引脚VQFN封装。 典型应用包括通信基础设施、通用监视和控制以及数据采集系统。
The operating temperature of the Texas Instruments AMC7834 range from -40°C to 125°C and is available in a 56-pin VQFN package. Typical applications include communication infrastructures, general-purpose monitor and control, and data acquisition systems.
特性
- Eight monotonic 12-bit DACs with programmable ranges
- Four Bipolar DACs
- 4V to 1V, –5V to 0V, and 0V to 5V
- Four Unipolar DACs
- 0V to 5V and 2.5V to 7.5V
- High current drive capability up to ±10 mA
- Selectable clamp voltage
- Four Bipolar DACs
- Multi-channel 12-bit SAR ADC
- Four external analog inputs with a 0V to 2.5V range
- Four internal inputs for bipolar DAC monitoring
- Programmable out-of-range alarms
- Four high-side current-sense amplifiers
- Common-mode voltages of 4V to 60V
- Optional closed-loop drain-current controller operation
- Temperature sensing capabilities
- Internal temperature sensor
- Two remote temperature-diode drivers
- Internal 2.5V reference
- Four General-Purpose I/O Ports (GPIOs)
- Low-power SPI-compatible serial interface
- 4-Wire mode, 1.7V to 3.6V operation
- –40°C to +125°C operating temperature range
- Available in a 56-pin VQFN package
应用
- Communication infrastructure
- Cellular base stations
- Microwave backhaul
- optical networks
- General-purpose monitor and control
- Data acquisition systems
Related Development Tool
Texas Instruments AMC7834EVM评估模块
评估12位AMC功率放大器功能和性能的平台。
发布日期: 2017-03-27
| 更新日期: 2022-04-20