AFE20408
- 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 error
- 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 –55°C to +150°C
The AFE20408 is a highly integrated power-amplifier (PA) monitor and control device capable of temperature, current, and voltage supervision.
The AFE20408 bias controller is based around eight digital-to-analog converters (DACs) 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 AFE20408 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 AFE20408 an excellent choice as an all-in-one, bias control circuit for power amplifiers. 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.
技術文件
設計與開發
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AFE20408EVM — AFE20408 評估模組
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 (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。