DAC8771
- Output Current:
- 0 mA - 24 mA; 3.5 mA - 23.5 mA;
0 mA - 20 mA; 4 mA - 20 mA; ±24 mA
- 0 mA - 24 mA; 3.5 mA - 23.5 mA;
- Output Voltage (with/without 20% over-range):
- 0 V - 5 V; 0 V - 10 V; ±5 V; ±10 V
- 0 V - 6 V; 0 V - 12 V; ±6 V; ±12 V
- Adaptive Power Management
- Single Wide Power Supply Pin
- 12 V - 36 V with Buck-Boost
- 12 V - 33 V without Buck-Boost
- ±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
- Safe actions on alarm condition
- Auto Learn Feature
- Wide Temperature Range: –40°C to +125°C
The DAC8771 is a single 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 V and 32 V based on continuous feedback of voltage on the current output pin via a buck/boost converter. When programmed as a voltage output, this circuit generates a programmable supply voltage for the voltage output stage (±15 V). DAC8771 contains an LDO to generate the digital supply (5 V) from a single power supply pin, particularly helpful in isolated applications.
DAC8771 is also implemented with a 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 devices can operate with a single external power supply of +12 V to +36 V using the integrated buck/boost converter or with external power supplies when the buck/boost converter is disabled.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | DAC8771 Single-Channel,16-Bit Voltage and Current Output Digital-to-Analog Converter with Adaptive Power Management datasheet | PDF | HTML | 2018年 2月 20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 | ||
User guide | DAC8771 Evaluation Module | 2018年 2月 21日 |
設計與開發
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DAC8771EVM — DAC8771 評估模組
The DAC8771 evaluation module (EVM) is an easy-to-use platform for evaluating the functionality and performance of the DAC8771 device. The DAC8771 is a 16-bit, single-channel, programmable-current or voltage-ouput digital-to-analog converter (DAC) with adaptive power (...)
ANALOG-ENGINEER-CALC — 類比工程師計算機
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
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TIDA-01535 — 適用於電源隔離式超小型類比輸出模組的參考設計
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VQFN (RGZ) | 48 | 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。