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MAX399：高精度、8通道/双4通道、低电压、CMOS模拟多路复用器

The MAX398/MAX399 precision, monolithic, CMOS analog multiplexers (muxes) offer low on-resistance (less than 100Ω), which is matched to within 6Ω between channels and remains flat over the specified analog signal range (11Ω max). They also offer low leakage over temperature (NO off-leakage current less than 2.5nA at +85°C) and fast switching speeds (transition time less than 250ns). The MAX398 is an 8-channel device, and the MAX399 is a dual 4-channel device. The MAX398/MAX399 are fabricated with Maxim's low-voltage silicon-gate process. Design improvements yield extremely low charge injection (less than 5pC) and guarantee electrostatic discharge protection (ESD) greater than 2000V. These muxes operate with a single +3V to +15V supply or bipolar ±3V to ±8V supplies, while retaining CMOS-logic input compatibility and fast switching. CMOS inputs provide reduced input loading. The MAX398/MAX399 are pin compatible with the industry-standard DG408, DG409, DG508A, and DG509A.

关键特性 Pin Compatible with Industry-Standard DG408/DG409/DG508A/DG509A Guaranteed On-Resistance Match Between Channels (< 6Ω) Low On-Resistance (< 100Ω) Guaranteed Flat On-Resistance over Signal Range (< 11Ω) Guaranteed Low Charge Injection (< 5pC) NO Off-Leakage Current < 1nA at +85°C COM Off-Leakage Current < 2.5nA at +85°C ESD Protection > 2000V +3V to +15V Single-Supply Operation ±3V to ±8V Bipolar-Supply Operation Low Power Consumption (< 300µW) Rail-to-Rail Signal Handling TTL/CMOS-Logic Compatible

MAX398、MAX399：引脚配置 应用 音频信号切换 自动测试设备(ATE) 电池供电应用 通信系统 引导与控制系统 平面显示器 低电压数据采集 军用无线装置 PBX、PABX 采样保持电路

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