DAC7311
- Relative accuracy:
- 0.25 LSB INL (DAC5311: 8-bit)
- 0.5 LSB INL (DAC6311: 10-bit)
- 1 LSB INL (DAC7311: 12-bit)
- microPower operation: 80 µA at 2.0 V
- Power-down: 0.5 µA at 5 V, 0.1 µA at 2.0 V
- Wide power supply: 2.0 V to 5.5 V
- Power-on reset to zero scale
- Straight binary data format
- Low power serial interface with Schmitt-triggered inputs: up to 50 MHz
- On-chip output buffer amplifier, rail-to-rail operation
- SYNC interrupt facility
- Extended temperature range –40°C to +125°C
- Pin-compatible family in a tiny, 6-pin SC70 package
The 8-bit DAC5311, 10-bit DAC6311, and 12-bit DAC7311 (DACx311) are low-power, single-channel, voltage output digital-to-analog converters (DACs). The low power consumption in normal operation (0.55 mW at 5 V, reducing to 2.5 µW in power-down mode) makes the DACx311 an excellent choice for portable, battery-operated applications.
These devices are monotonic by design, provide excellent linearity, and minimize undesired code-to-code transient voltages while offering an easy upgrade path within a pin-compatible family. All devices use a versatile, three-wire serial interface that operates at clock rates of up to 50 MHz, and is compatible with standard SPI, QSPI, Microwire, and digital signal processor (DSP) interfaces.
All devices use an external power supply as a reference voltage to set the output range. The devices incorporate a power-on reset (POR) circuit that powers up the DAC output at 0 V and remains at 0 V until a valid write to the device occurs. The DACx311 contain a power-down feature, accessed over the serial interface, that reduces current consumption of the device to 0.1 µA at 2.0 V in power-down mode.
These devices are pin-compatible with the DAC8311 and DAC8411, offering an easy upgrade path from 8‑bit, 10‑bit, and 12‑bit resolution to 14‑bit and 16‑bit. All devices are available in a small, 6‑pin, SC70 (SOT) package. This package offers a flexible, pin- and function-compatible, drop-in DAC within the family over an extended temperature range of –40°C to +125°C.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | DACx311 2-V to 5.5-V, 80-µA, 8-Bit, 10-Bit, and 12-Bit, Low-Power, Single-Channel, Digital-to-Analog Converters in SC70 Package datasheet (Rev. D) | PDF | HTML | 2023/8/17 | ||
| Circuit design | Loop-Powered 4mA to 20mA Transmitter Circuit (Rev. A) | PDF | HTML | 2024/9/19 | |||
| 使用指南 | Precision DAC SPICE Models Quick-Start Guide | 2017/2/22 |
設計與開發
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DAC7311EVM — DAC7311 評估模組
The SC70 DAC EVM is an evaluation module designed for the prototyping and evaluation of the DAC8411, DAC8311, DAC7311, DAC6311 and DAC5311 digital to analog converters (DAC). These 8 to 16-bit, string DACs operate with a high speed serial clock (up to 50MHz) and offer excellent performance with (...)
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
TIDA-01081 — 機械視覺的 LED 照明控制參考設計
TIPD158 — 經過 EMC 與 EMI 測試的迴路供電 4mA 至 20mA 傳送器參考設計
此經過認證的參考設計使用 DAC7311、OPA317 與 TL431B 實作了 12 位元迴路供電（或 2 線）傳送器。此設計包含可對 IEC61000-4 測試套件提供抗擾度的保護電路。此設計亦包含用於整流反向極性供應電壓的電路。保護電路和整流器不會對電流輸出性能造成負面影響，未調整總誤差 (TUE) 小於 0.2%。
此設計適用於需要用於雙線資料傳輸之低成本解決方案的工業自動化與程序控制應用。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-SC70 (DCK) | 6 | Ultra Librarian |
訂購與品質
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。