AD620论文.doc

大 学 生本科毕业设计（论文）英文翻译适用专业：电子与通信工程电子科学与技术电气工程及其自动化自动化计算机科学与技术测试技术与仪器说明：本文为大学电子通信类毕业设计（论文）翻译资料，满足要求的翻译字数不少于5000字，实际翻译中文字数5215字。摘要：电子通信 单片机 AT89C51 中英对照翻译PRODUCT DESCRIPTIONThe AD620 is a low cost, high accuracy instrumentation amplifier that requires only one external resistor to set gains of 1 to 10,000. Furthermore, the AD620 features 8-lead SOIC and DIP packaging that is smaller than discrete designs and offers lower power (only 1.3 mA max supply current), making it a good fit for battery-powered, portable (or remote) applications. The AD620, with its high accuracy of 40 ppm maximum nonlinearity, low offset voltage of 50 V max, and offset drift of 0.6 V/C max, is ideal for use in precision data acquisition systems, such as weigh scales and transducer interfaces. Furthermore, the low noise, low input bias current, and low power of the AD620 make it well suited for medical applications, such as ECG and noninvasive blood pressure monitors. The low input bias current of 1.0 nA max is made possible with the use of processing in the input stage. The AD620 works well as a preamplifier due to its low input voltage noise of 9 nV/Hz at 1 kHz, 0.28 V p-p in the 0.1 Hz to 10 Hz band, and 0.1 pA/Hz input current noise. Also, the AD620 is well suited for multiplexed applications with its settling time of 15 s to 0.01%, and its cost is low enough to enable designs with one in-amp per channel.A Pressure Monitor Circuit that Operates on a 5 V Single SupplyPressure Measurement，although useful in many bridge applications, such as weigh scales, the AD620 is especially suitable for higher resistance pressure sensors powered at lower voltages where small size and low power become more significant. Figure 40 shows a 3 k pressure transducer bridge powered from 5 V. In such a circuit, the bridge consumes only 1.7 mA. Adding the AD620 and a buffered voltage divider allows the signal to be conditioned for only 3.8 mA of total supply current. Small size and low cost make the AD620 especially attractive for voltage output pressure transducers. Since it delivers low noise and drift, it will also serve applications such as diagnostic noninvasive blood pressure measurement. The low current noise of the AD620 allows its use in ECG monitors (Figure 41) where high source resistances of 1 M or higher are not uncommon. The AD620s low power, low supply voltage requirements, and space-saving 8-lead mini-DIP and SOIC package offerings make it an excellent choice for battery-powered data recorders. Furthermore, the low bias currents and low current noise, coupled with the low voltage noise of the AD620, improve the dynamic range for better performance. The value of capacitor C1 is chosen to maintain stability of the right leg drive loop. Proper safeguards, such as isolation, must be added to this circuit to protect the patient from possible harm.大学本科生毕业设计中英文对照翻译仅免费提供该部分，如需全文，请汇款30元，我名杨甲沛，我的建行卡号：4367 4200 6124 0218 639汇款时请记清您汇款地所在的城市和姓名，以便本人及时查收，款到立即发邮件或QQ传给您翻译全文，全文也为WORD形式，翻译后5100多个汉字，拿来就用，无须修改。汇款后请及时与本人联系，好及时为您发邮件。本人每天至少登录一次QQ和邮箱。我的QQ 158535020 邮箱07年1月12号产品描述AD620 是低成本, 高精度仪表化放大器。它只需要一个外部电阻来设定从1 到 10,000增益。 此外， AD620 以8位引导SOIC 和DIP组为特征，这比离散设计要小，并且提供比较低的动力 (只有1。3 mA最大供给电流) 小，这使得它很好适用于电池组动力源，可移动（遥控的）应用。 AD620由于它的40ppm最大非线性的高精确度，50V最大值的低偏移电压和0。6 V/C最大值的偏移量漂移，使得它能理想地应用于精确数据获得系统中,例如称重量的天平和转换器接口。 此外，低噪声，低输入偏移电流和低功耗使得AD620 很好适合于医学应用方面, 比如 ECG 和 入侵式血压监视器。 最大值为1。0 nA 的低输入偏移电流可能被用在输入阶段的处理应用中。 AD620 作为前级放大器工作性能优良是由于它在1 kHz频段上 9 nV/ 赫兹的低输入电压噪声,在 0。1 赫兹至 10 赫兹频段 0。28V p- p 和0。1 pA/赫兹的输入电流噪声。并且，AD620的解决时间仅15s相当于 0。01%,而且它的费用足够低使得设计能够每频道用一个in-amp，这使得它很适合多功能复合应用领域。一个工作在 5 V 单一供给压力量的压力监视器电路，虽然在许多桥应用中是有用的，例如称重量的天平, AD620 尤其适合于工作于低电压下的较高阻抗压力传感器，在这里较少数量和低功耗变得更加重要。 图 40 显示了一个工作于5 V电压下的3 k 压力变换桥电路。在如此的一个电路中，电桥只消耗1.7 mA。 增加式AD620和被缓冲的电压分配器允许信号适应于总供给电流仅为3.8 mA的情况。 数量小和低成本使得AD620对电压输出压力转换器尤其有吸引力。因为它传递低噪声和飘移，它也将会应用于诸如诊断入侵式血压检测领域。 AD620 的低电流噪声允许它应用在 ECG 监视器(图 41)，在监视器中1 M或更高的高源阻抗是异常的。AD620的低功耗,低供给电压需求和节省空间8位引导mini-DIP and SOIC程序包使得它成为电池驱动数据录音机的优秀的选择。 此外，AD620 的低偏移电流、低电流噪声以及低电压噪声提高了性能优化的动态范围。 电容器 C1 的价值在于维持右支路驱动环的稳定性。 适当的保护，例如隔离, 一定要增加到这个电路以使病人免遭可能的伤害。仅免费提供该部分，如需全文，请汇款30元，