摘要：一个低功率/低电压运算放大器的输入电压范围在什么时候成为重要的呢？电池供电的手持系统设计时，你应该选择什么运算放大器？Maxim > App Notes > AMPLIFIER AND COMPARATOR CIRCUITS Keywords: CMVR, CMRR, input voltage range, rail to rail inputs, beyond the rail inputs, op amps, low voltage Mar 23, 2001 op amp, low voltage amplfiers APPLICATION NOTE 741 Rail-to-Rail Outputs and Beyond-the-Rails Inputs: The Inside Story on Micropower Op Amps Abstract: When does the input voltage range of a low power/low voltage op amp become important? What operational amplifier should you choose when designing a battery powered handheld system? To optimize performance in today's low-power handheld systems, designers must pay increasing attention to the common-mode input voltage range, output voltage swing, noise, and supply current of single-supply micropower op amps. Differential op amps usually include the negative rail in ……