1B51: Isolated mV/Thermocouple Signal Conditioner

The 1B51 is a precision, mV/thermocouple signal conditioner that incorporates a circuit design utilizing transformer based isolation and automated surface mount manufacturing technology. It provides an unbeatable combination of versatility and performance in a compact plastic package. Designed for measurement and control applications, it is specially suited for harsh environments with extremely high common-mode interference. Unlike costlier solutions that require separate dc/dc converters, each 1B51 generates its own input side power, providing true, low cost channel-to channel isolation.

Applications

Multichannel Thermocouple Temperature
Measurement
Low Level Data Acquisition Systems
Industrial Measurement & Control Systems

1B51 特点

Functionally Complete Precision COnditioner
High Accuracy
Low Input Offset Tempco: ±0.1u/°C
Low Nonlinearity: ±0.025%
High CMV: 160dB (60Hz, G=1000V/V)
240V rms Input Protection
Small Package: 1.0"x2.1"x0.35" DIP
Isolated Power
Low Pass Filter (fc=3Hz)
Pin Compatible with 1B41 Isolated RTD Conditioner

1B51 功能框图

1B51 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
1B51AN	量产	PLASTIC DIP	12	商业
1B51BN	量产	PLASTIC DIP	12	商业