MAX976, MAX978, MAX998 单/双/四路、

MAX976, MAX978, MAX998 单/双/四路、SOT23封装、单电源、高速、低功耗比较器

The MAX976/MAX978/MAX998 dual/quad/single, high-speed, low-power comparators are optimized for +3V/+5V single-supply applications. They achieve a 20ns propagation delay while consuming only 225µA supply current per comparator. The MAX998 features a low-power shutdown mode that places the output in a high-impedance state and reduces supply current to 1nA.

The MAX976/MAX978/MAX998 inputs have a common-mode voltage range that extends 200mV below ground. Their outputs are capable of rail-to-rail operation without external pullup circuitry, making these devices ideal for interface with CMOS/TTL logic. All inputs and outputs can tolerate a continuous short-circuit fault condition to either rail. The comparators' internal hysteresis ensures clean output switching, even with slow-moving input signals.

For space-critical applications, the single MAX998 is available in a 6-pin SOT23 package, the dual MAX976 is available in an 8-pin µMAX® package, and the quad MAX978 is available in a 16-pin QSOP package.

Single-Supply Operation Down to 2.7V

20ns Propagation Delay

225µA Supply Current

1nA Shutdown Supply Current

Rail-to-Rail Outputs

Ground-Sensing Inputs

Internal Hysteresis Ensures Clean Switching

Available in Space-Saving Packages

• SOT23 (MAX998)
• µMAX (MAX976)
• QSOP (MAX978)

应用/使用

3V系统
电池供电应用
数字线接收器
IR接收器
门限检测器/鉴别器

典型工作电路

MAX7359中文资料pdf