DAC121C081
- Ensured Monotonicity to 12-Bits
- Low Power Operation: 156-µA Maximum at 3.3 V
- Extended Power Supply Range (2.7 V to 5.5 V)
- I2C-Compatible 2-Wire Interface Which Supports Standard (100-kHz), Fast (400-kHz), and High-Speed (3.4-MHz) Modes
- Rail-to-Rail Voltage Output
- Very Small Package
- Resolution: 12 bits
- INL: ±8 LSB (Maximum)
- DNL: 0.6 / –0.5 LSB (Maximum)
- Settling Time: 8.5 µs (Maximum)
- Zero Code Error: 10 mV (Maximum)
- Full-Scale Error: −0.7%FS (Maximum)
- Supply Power
- Normal: 380 µW (3 V) / 730 µW (5 V) (Typical)
- Power Down: 0.5 µW (3 V) / 0.9 µW (5 V) (Typical)
The DAC121C081 is a 12-bit, single-channel, voltage-output digital-to-analog converter (DAC) that operates from a 2.7-V to 5.5-V supply. The output amplifier allows rail-to-rail output swing and has an 8.5-µs settling time. The DAC121C081 uses the supply voltage as the reference to provide the widest dynamic output range, and typically consumes 132 µA while operating at 5 V. It is available in 6-pin SOT and WSON packages, and provides three address options (pin selectable).
As an alternative, the DAC121C085 provides nine I2C addressing options and uses an external reference. It has the same performance and settling time as the DAC121C081, and is available in an 8-lead VSSOP.
The DAC121C081 and DAC121C085 use a 2-wire, I2C-compatible serial interface that operates in all three speed modes, including high-speed mode (3.4 MHz). An external address selection pin allows up to three DAC121C081 or nine DAC121C085 devices per 2-wire bus. Pin compatible alternatives to the DAC121C081 are available that provide additional address options.
The DAC121C081 and DAC121C085 each have a 16-bit register that controls the mode of operation, the power-down condition, and the output voltage. A power-on reset circuit ensures that the DAC output powers up to 0 V. A power-down feature reduces power consumption to less than a microWatt. Their low power consumption and small packages make these DACs an excellent choice for use in battery-operated equipment. Each DAC operates over the extended industrial temperature range of −40°C to +125°C.
The DAC121C081 and DAC121C085 are each part of a family of pin compatible DACs that also provide 8 and 10 bit resolution. For 8-bit DACs see the DAC081C081 and DAC081C085. For 10-bit DACs see the DAC101C081 and DAC101C085.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | DAC121C081 and DAC121C085 12-Bit Micro Power Digital-to-Analog Converter With an I2C-Compatible Interface datasheet (Rev. F) | PDF | HTML | 2016年 10月 3日 |
Application note | A Basic Guide to I2C | PDF | HTML | 2022年 11月 8日 | |
Application note | AN-2001 Daisy Chaining Precision DACs (Rev. A) | 2013年 5月 1日 | ||
User guide | 8/10/12-Bit Micro Power D/A Converter with I2C Interface Eval Bd User Guide | 2012年 1月 25日 |
設計與開發
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DAC121C085EVM — DAC121C085 評估模組
The DAC121C085EVM is a demonstration kit for the DAC121C085, a 12-bit, 1-channel, 8.5us settling time, 2-wire interface digital-to-analog converter. The EVM allows users to evaluate the operation and performance of the DAC121C085 data converter. The EVM features a small size layout that directly (...)
ANALOG-ENGINEER-CALC — 類比工程師計算機
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
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
SOT-23-THN (DDC) | 6 | Ultra Librarian |
WSON (NGF) | 6 | 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。