DAC7750
- Current output options:
- 0 mA to 24 mA
- 4 mA to 20 mA
- 0 mA to 20 mA
- ±0.1% FSR typical total unadjusted error (TUE)
- DNL: ±1 LSB maximum
- Maximum loop compliance voltage: AVDD – 2 V
- Internal 5-V reference: 10 ppm/°C (maximum)
- Internal 4.6-V power-supply output
- CRC frame error check
- Watchdog timer
- Thermal alarm
- Open-circuit alarm
- Pins to monitor output current
- On-chip fault alarm
- User-calibration for offset and gain
- Wide temperature range: –40°C to +125°C
- Packages: 6-mm × 6-mm 40-pin VQFN and 24-pin HTSSOP
The DAC7750 and DAC8750 (DACx750) are low-cost, precision, fully-integrated, 12-bit and 16-bit digital-to-analog converters (DACs) designed to meet the requirements of industrial process-control applications. These devices can be programmed as a current output with ranges of 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA. The DACx750 include reliability features such as CRC error checking on the SPI frame, a watchdog timer, an open circuit, compliance voltage, and thermal alarm. In addition, the output current can be monitored by accessing an internal precision resistor.
These devices include a power-on-reset function designed to power up the device in a known state (IOUT is disabled and in a Hi-Z state). The CLR pin sets the current output to the low end of the range if the output is enabled. Program the zero and gain registers to digitally calibrate the device in the end system. The output slew rate is also programmable by register. These devices can superimpose an external HART signal on the current output, and operate with a 10-V to 36-V supply.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | DACx750 Single-Channel, 12-Bit and 16-Bit Programmable Current Output Digital-to-Analog Converters for 4-mA to 20-mA Current-Loop Applications datasheet (Rev. D) | PDF | HTML | 2021年 12月 7日 |
Application note | A Basic Guide to the HART Protocol | PDF | HTML | 2023年 11月 9日 | |
EVM User's guide | DACx760EMC-EVM User's Guide | 2014年 4月 24日 | ||
Application note | Implementing HART™ Communication With the DAC8760 Family | 2014年 1月 16日 | ||
EVM User's guide | DACx760EVM and DACx750EVM User's Guide (Rev. A) | 2013年 11月 21日 |
設計與開發
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DAC7750EVM — 具有 4mA 至 20mA 電流輸出的 DAC7750 12 位元可編程 DAC 評估模組
The DAC7750 evaluation module (EVM) provides an easy to use platform for evaluation of the performance and operating characteristics of the DAC7750 (12-bit, Voltage & Current Outputs). The EVM is a complete evaluation kit that includes a USB-based motherboard called the SM-USB-DIG, USB cable, (...)
ANALOG-ENGINEER-CALC — 類比工程師計算機
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
支援產品和硬體
產品
系列電壓參考
精確 ADC
生物感測 AFE
整合式精密 ADC 與 DAC
高速 ADC (≥10 MSPS)
精密 DAC (≤10 MSPS)
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
TIDA-00118 — 適用於可編程邏輯控制器 (PLC) 的 16 位元類比輸出模組參考設計
TIPD119 — Voltage and current output terminal reference design for analog outputs in industrial applications
TIPD153 — 單通道工業電壓及電流輸出驅動器、隔離式、經 EMC/EMI 測試的參考設計
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
HTSSOP (PWP) | 24 | Ultra Librarian |
VQFN (RHA) | 40 | 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。