DAC8775
- Output Current:
- 0 mA to 24 mA; 3.5 mA to 23.5 mA; 0 mA to 20 mA; 4 mA to 20 mA; ±24 mA
- Output Voltage (with/without 20% over-range):
- 0 V to 5 V; 0 V to 10 V; ±5 V; ±10 V
- 0 V to 6 V; 0 V to 12 V; ±6 V; ±12 V
- Adaptive Power Management
- Single Wide Power Supply Pin (12 V – 36 V)
- ±0.1% FSR Total Unadjusted Error (TUE)
- DNL: ±1 LSB Max
- Internal 5-V Reference (10 ppm/°C max)
- Internal 5-V Digital Power Supply Output
- CRC/Frame Error Check, Watchdog Timer
- Thermal Alarm, Open/Short Circuit for System Reliability
- Safe Actions on Alarm Condition
- Auto Learn Load Detection
- Wide Temperature Range: –40°C to +125°C
The DAC8775 is a quad-channel precision, fully integrated, 16-bit, digital-to-analog converter (DAC) with adaptive power management, and is designed to meet the requirements of industrial control applications. The adaptive power management circuit, when enabled, minimizes the power dissipation of the chip. When programmed as a current output, the supply voltage on the current output driver is regulated between 4.5 V and 32 V based on continuous feedback of voltage on the current output pin via an integrated buck/boost converter. When programmed as a voltage output, this circuit generates a programmable supply voltage for the voltage output stage (±15 V). DAC8775 also contains an LDO to generate the digital supply (5 V) from a single power supply pin.
DAC8775 is also implemented with a Highway Addressable Remote Transducer (HART) Signal Interface to superimpose an external HART signal on the current output. The slew rate of the current output DAC is register programmable. The device can operate with a single external power supply of +12 V to +36 V using the integrated buck/boost converters or with external power supplies when the buck/boost converters are disabled.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | DAC8775 Quad-Channel, 16-Bit Programmable Current Output and Voltage Output Digital-to-Analog Converter with Adaptive Power Management datasheet | PDF | HTML | 2017年 2月 7日 |
Circuit design | Programmable, two-stage, high-side current source circuit (Rev. A) | PDF | HTML | 2024年 9月 19日 | |
Application note | A Basic Guide to the HART Protocol | PDF | HTML | 2023年 11月 9日 | |
Application brief | Thermal Management to Increase Density in PLC AO Modules | 2018年 6月 12日 | ||
EVM User's guide | DAC8775EVM User's Guide | 2016年 12月 2日 |
設計與開發
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DAC8775EVM — DAC8775 評估模組
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封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VQFN (RWF) | 72 | 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。