AMC7908
- Eight analog outputs
- Eight monotonic DACs: 1.22mV resolution
- Automatically configured output ranges:
- Positive output voltage: 0V to 10V
- Negative output voltage: –10V to 0V
- High current drive capability
- High capacitive load tolerance
- Output on and off control switches
- Fast switching time
- Low resistance
- Multichannel ADC monitor
- Two high-voltage external inputs: 0V to 85V
- Two high-side current-sense amplifiers: up to 85V common-mode range
- Local temperature sensor: ±2.5°C accuracy
- Output sequence control for start-up and shutdown events
- Internal 2.5V reference
- SPI and I2C interface: 1.65V to 3.6V operation
- SPI: 4-wire interface
- I2C: 16 target addresses
- Specified temperature range: –40°C to +125°C
- Operating temperature range: –40°C to +150°C
The AMC7908 is a highly integrated power-amplifier (PA) monitor and control device capable of temperature, current, and voltage supervision.
The AMC7908 bias controller is based around eight digital-to-analog converters (DAC) with programmable output ranges. The eight gate bias outputs are switched on and off through dedicated control pins. The gate bias switches are designed for fast response and enable correct power sequencing and protection of depletion-mode transistors, such as GaAs and GaN.
The AMC7908 supervisor is based around an accurate multichannel analog-to-digital converter (ADC). The device integrates two high-voltage inputs, two high-side current-sense amplifiers and an accurate on-chip temperature sensor.
The function integration and wide operating temperature range make the AMC7908 an excellent choice as an all-in-one, bias control circuit for the power amplifiers found in RF communication systems. The flexible DAC output ranges and built-in sequencing features let the device be used as a biasing controller for a large variety of transistor technologies, such as LDMOS, GaAs, and GaN.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | AMC7908 8-Channel Power-Amplifier Monitor and Controller datasheet | PDF | HTML | 2024年 8月 9日 |
| Application note | Biasing LDMOS and GaN Power Amplifiers With the AMC7908 | PDF | HTML | 2024年 10月 9日 | |
| EVM User's guide | AMC7908 Evaluation Module User's Guide (Rev. A) | PDF | HTML | 2024年 6月 12日 |
設計與開發
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AMC7908EVM — AMC7908 評估模組
AMC7908EVM 是簡單易用的平台，可用於評估 AMC7908 產品的功能與性能。AMC7908EVM 具有選用電路和跨接器，可針對不同應用來配置產品。
AMC7908 是高度整合的功率放大器監控和控制裝置，具有八個 13 位元數位轉類比轉換器 (DAC) 和一個 12 位元類比轉數位轉換器 (ADC)。DAC 可透過專用箝位軟體和硬體觸發器開啟和關閉。
ANALOG-ENGINEER-CALC — 類比工程師計算機
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RHB) | 32 | 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。