LT108 bridge temperature measurement circuit

LT1008 also has low temperature drift (temperature drift <l-5pLV/C), low bias input current (<600pA), low voltage
offset (< 120ILV), low noise (0-1—lOffi, 0.5pLVp_p), and low CMRR and high-performance op amps
with high PSRR (guaranteed minimum 114dB) . The bridge temperature measurement circuit composed of LT1008 has the characteristics of high input impedance, high temperature measurement accuracy, and low output noise, as shown in the figure. Since the input current     of LT1008 is extremely low, the resistance of the code~core is larger, which increases the input impedance of the amplifier circuit. Ri, R2, RTi, and RTz are bridge detection circuits. The detection signal is output to the (+) and (1) terminals of the operational amplifier , and is output from the ⑥ pin after amplification. The amplification factor of the amplifier is R5/R3~100.