ISL28271

The ISL28271 and ISL28272 are dual micropower instrumentation amplifiers (in-amps) optimized for single supply operation over the +2.4V to +5.5V range.

Both devices feature an Input Range Enhancement Circuit (IREC) which maintains CMRR performance for input voltages equal to the positive and negative supply rails. The input signal is capable of swinging 10% above the positive supply rail and to 100mV below the negative supply with only a slight degradation of the CMRR performance. The output operation is rail-to-rail.

The ISL28271 is compensated for a minimum gain of 10 or more. For higher gain applications, the ISL28272 is compensated for a minimum gain of 100. The in-amps have CMOS input devices for maximum input common voltage range. The amplifiers can be operated from one lithium cell or two Ni-Cd batteries.

ISL28271 特点

• 120μA typical supply current for both channels
• 30pA max input bias current
• 100dB CMRR, PSRR
• 0.7μV/°C offset voltage temperature coefficient
• 180kHz 3dB Bandwidth - ISL28271
• 100kHz 3dB Bandwidth - ISL28272
• 0.5V/μs slew rate
• Single supply operation
• Rail-to-rail input and output (RRIO)
• Input is capable of swinging above V+ and below V- (ground sensing)
• 0.081%1 typical gain error - ISL28271
• -0.19%1 typical gain error - ISL28272
• Pb-free available (RoHS compliant)

ISL28271 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 $
ISL28271FAZ	量产	Full-Range Ind	16 Ld QSOP	3	1.84
ISL28271FAZ-T7	量产	Full-Range Ind	16 Ld QSOP T+R	3	1.84
ISL28271INEVAL1Z	量产		评估板	N/A	价格录入中

ISL28271 应用技术支持与电子电路设计开发资源下载

1. ISL28271 数据手册DataSheet下载.PDF