The DAC8218 is a low-power, octal, 14-bit digital-to-analog converter (DAC). With a 5V reference, the output can either be a bipolar ±15V voltage when operating from dual ±15.5V (or higher) power supplies, or a unipolar 0V to +30V voltage when operating from a +30.5V (or higher) power supply. With a 5.5V reference, the output can either be a bipolar ±16.5V voltage when operating from dual ±17V (or higher) power supplies, or a unipolar 0V to +33V voltage when operating from a +33.5V (or higher) power supply. This DAC provides low-power operation, good linearity, and low glitch over the specified temperature range of –40°C to +105°C. This device is trimmed in manufacturing and has very low zero-code and gain error. In addition, system level calibration can be performed to achieve ±1 LSB bipolar zero/full-scale error with bipolar supplies, or ±1 LSB zero code/full-scale error with a unipolar supply, over the entire signal chain. The output range can be offset by using the DAC offset register.
The DAC8218 features a standard, high-speed serial peripheral interface (SPI) that operates at up to 50MHz and is 1.8V, 3V, and 5V logic compatible, to communicate with a DSP or microprocessor. The input data of the device are double-buffered. An asynchronous load input (LDAC) transfers data from the DAC data register to the DAC latch. The asynchronous CLR input sets the output of all eight DACs to AGND. The VMON pin is a monitor output that connects to the individual analog outputs, the offset DAC, the reference buffer outputs, and two external inputs through a multiplexer (mux).
The DAC8218 is pin-to-pin and function-compatible with the DAC8718 (16-bit) and the DAC7718 (12-bit).
| 类型 | 标题 | 下载最新的英语版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 数据表 | Octal, 14-Bit, Low-Power, High-Voltatge Output, Serial Input D/A Converter 数据表 (Rev. A) | 2009年 12月 15日 | |||
| 用户指南 | DAC8218EVM User's Guide (Rev. A) | 2011年 5月 11日 | ||||
| 应用手册 | 所选封装材料的热学和电学性质 | 2008年 10月 16日 | ||||
| 应用手册 | 高速数据转换 | 英语版 | 2008年 10月 16日 |
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DACxx18EVM 具有 DAC7718、DAC8218 或 DAC8718 数模转换器。该 EVM 提供简单快捷的方法来评估这款高分辨率串行输入模数转换器 (DAC) 的功能和性能。默认情况下，DACxx18EVM 被设计为在双极输出范围内工作，但是也可以通过正确配置两个跳线将它配置为在单极输出范围内工作。EVM 提供串行接口头以轻松连接所有主机微处理器或 TI DSP 基本系统。已安装的精密电压基准 +5VDC 和 +2.5VDC 可通过板载跳线进行选择。REF5050（+5.0VDC 电源）和 REF5025 (+2.5VDC) 与具有各种参考值的 REF50xx 系列引脚兼容。
The DACxx18EVM features the DAC7718, DAC8218, or DAC8718 digital to analog converter. The EVM provides a quick and easy way to evaluate the functionality and performance of this high resolution serial input Digital to Analog Converter (DAC). The DACxx18EVM is designed to work by default for a (...)
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| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TQFP (PAG) | 64 | Ultra Librarian |
| VQFN (RGZ) | 48 | Ultra Librarian |
推荐米6体育平台手机版_好二三四可能包含与 TI 此米6体育平台手机版_好二三四相关的参数、评估模块或参考设计。