The AD587 represents a significant advancement in the field of advanced single-chip reference voltage sources. It utilizes a proprietary ion implantation embedded Zener diode and laser wafer adjustment of highly stable thin-film resistors, allowing it to deliver excellent performance at a lower cost.
The AD587 performs significantly better than most other 10 V references. It uses industry-standard pinouts, so many systems can be quickly upgraded with the AD587.
The reference design uses an embedded Zener method, which makes noise and drift lower than the bandgap reference. The device also provides noise reduction pins to further reduce the noise level generated by the embedded Zener diode.
The AD587 is recommended as a reference for 8-, 10-, 12-, 14-, or 16-bit DACs that require an external precision reference source. The device is also ideal for successive approximations or integrated ADCs with up to 14-bit accuracy, and typically outperforms standard on-chip references.
The AD587J and AD587K are rated for operating temperatures ranging from 0°C to 70°C, and the AD587U is rated for −55°C to +125°C. AD587JQ and AD587UQ are available in an 8-pin CERDIP package, while other models are available in an 8-pin SOIC package (for surface-mount applications) or an 8-pin PDIP package.
Product Focus
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初始精度和温度系数均进行激光调整，因而在整个温度范围内的误差极低，且无需使用外部器件。在−55°C至+125°C范围内，AD587U保证最大总误差为±14 mV。
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可选的精密调整连接，专为要求更高精度的应用而设计。
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借助采用工业标准引脚排列的10 V基准电压源，现有系统可立即完成升级。
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极低输出噪声。AD587输出噪声典型值为4 μV峰峰值。同时提供降噪引脚，以利用外部电容进一步对噪声进行滤波。
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提供符合MIL-STD-883标准的版本。欲了解详细规格特性，请参考 ADI军用和航空航天产品参考手册