ISL28470

The ISL28270 and ISL28273 are dual channel micropower instrumentation amplifiers (in-amps) and the ISL28470 is a quad channel in-amp optimized for single supply operation over the +2.4V to +5.5V range.

All three devices feature an Input Range Enhancement Circuit (IREC) which maintains CMRR performance for input voltages equal to the positive supply and down to 50mV above the negative supply rail. The input signal is capable of swinging above the positive supply rail and to 10mV above the negative supply with only a slight degradation of the CMRR performance. The output operation is rail-to-rail.

The ISL28273 is compensated for a minimum gain of 10 or more. For higher gain applications, the ISL28270 and ISL28470 are compensated for a minimum gain of 100. The in-amps have bipolar input devices for best offset and excellent 1/f noise performance. The amplifiers can be operated from one lithium cell or two Ni-Cd batteries.

ISL28470 特点

• 150μV max offset voltage (ISL28270, ISL28470)
• 600μV max offset voltage (ISL28273)
• 2.5nA max input bias current (ISL28270, ISL28470)
• 110dB CMRR
• 0.7μV/°C offset voltage temperature coefficient
• 240kHz -3dB bandwidth (G = 100) ISL28270, ISL28470
• 230kHz -3dB bandwidth (G = 10) ISL28273
• Single supply operation
• Rail-to-rail input and output (RRIO)
• Pb-free plus anneal available (RoHS compliant)

ISL28470 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图	潮湿敏感度等级MSL	美元价格US $
ISL28470EVAL1Z	量产	工业级	16 Ld QSOP	2	1.84
ISL28470FAZ	量产	工业级	16 Ld QSOP T+R	2	1.84
ISL28470FAZ-T7	量产		评估板	N/A	价格录入中

ISL28470 应用技术支持与电子电路设计开发资源下载

1. ISL28470 数据手册DataSheet下载.PDF