DAC121C085
- 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.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | DAC121C081 and DAC121C085 12-Bit Micro Power Digital-to-Analog Converter With an I2C-Compatible Interface 数据表 (Rev. F) | PDF | HTML | 2016-10-3 | ||
| 应用手册 | A Basic Guide to I2C | PDF | HTML | 2022-11-8 | |||
| 应用手册 | AN-2001 Daisy Chaining Precision DACs (Rev. A) | 2013-5-1 | ||||
| 用户指南 | 8/10/12-Bit Micro Power D/A Converter with I2C Interface Eval Bd User Guide | 2012-1-25 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
DAC121C085EVM — DAC121C085 评估模块
DAC121C085EVM 是 DAC121C085 的演示套件，是一款 12 位、单通道、8.5us 趋稳时间、双线接口的数模转换器。EVM 可供用户评估 DAC121C085 数据转换器的运行和性能。该 EVM 采用小尺寸布局，可直接连接到 MSP430F5529 LaunchPad 电路板上。
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VSSOP (DGK) | 8 | Ultra Librarian |
订购和质量
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