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DG418：改进的SPST/SPDT模拟开关

Maxim's redesigned DG417/DG418/DG419 precision, CMOS, monolithic analog switches now feature guaranteed on-resistance matching (3Ω max) between switches and guaranteed on-resistance flatness over the signal range (4Ω max). These switches conduct equally well in either direction and guarantee low charge injection, low power consumption, and an ESD tolerance of 2000V minimum per Method 3015.7. The new design offers low off-leakage current over temperature (less than 5nA at +85°C). The DG417/DG418 are single-pole/single-throw (SPST) switches. The DG417 is normally closed, and the DG418 is normally open. The DG419 is single-pole/double-throw (SPDT) with one normally closed switch and one normally open switch. Switching times are less than 175ns max for tON and less than 145ns max for tOFF. Operation is from a single +10V to +30V supply, or bipolar ±4.5V to ±20V supplies. The improved DG417/DG418/DG419 are fabricated with a 44V silicon-gate process.

关键特性 Plug-In Upgrades for Industry-Standard DG417/DG418/DG419 Improved RDS(ON) Match Between Channels (3Ω max, DG419 only) Guaranteed RFLAT(ON) Over Signal Range (4Ω max) Improved Charge Injection (10pC max) Improved Off-Leakage Current Over Temperature (< 5nA at +85°C) Withstand Electrostatic Discharge (2000V min) per Method 3015.7 Low RDS(ON) (35Ω max) Single-Supply Operation +10V to +30V Bipolar-Supply Operation ±4.5V to ±20V Low Power Consumption (35µW max) Rail-to-Rail Signal Handling TTL/CMOS-Logic Compatible

DG417、DG418、DG419：引脚配置 应用 音频信号切换 电池供电应用 通信系统 传真机 引导与控制系统 军用无线装置 调制解调器 PBX、PABX 采样保持电路 测试设备

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相关产品

• DG417L：35Ω、SPST/SPDT、+3V逻辑兼容模拟开关
• DG418L：35Ω、SPST/SPDT、+3V逻辑兼容模拟开关
• DG419L：35Ω、SPST/SPDT、+3V逻辑兼容模拟开关

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