摘要
介绍了TI公司推出的新型电化学模拟前端芯片LMP91000,基于该芯片设计了新式化学传感器前端调理电路,并对电路进行了验证。采用该芯片可以大大简化电路设计,减少电路的复杂性,提高电路的可靠性。同时可编程的增益控制和温度补偿,能够实现电化学传感器的自动调零和智能校准,大大提高测量精度。芯片具有的I2C总线,可以实现传感器的阵列设计,实现多气体测量。
A new type analog front-chip LMP91000 for EC sensors fronl TI is introduced in detail in this paper, based on which a new EC sensor conditioning circuit is designed and proved. and improve LMPgI000 is helpfill to simplify the design reliability of the circuit intelligent calibration are performed Auto-zeroing and by programmable gain control and temperature compensation. With I=C bus, an array design of EC sensors can be achieved easily for multi-gas measurement
出处
《传感器世界》
2014年第2期22-25,共4页
Sensor World
