Humidity sensor circuit

Example of the circuit using operational amplifier for amplifying humidity sensor signal

Humidity sensor circuit

Lineup

Small surface mount LDO regulator

Part number TCR15AG
Series
TCR13AG
Series
TCR8BM
Series
TCR5BM
Series
TCR5RG
Series
TCR3RM
Series
TCR3U
Series
TCR2L
Series
TAR5
Series
Features

Low dropout voltage

High PSRR

High PSRR

Low noise

Low current
consumption

Low current
consumption

15 V Input voltage

Bipolar type

IOUT (Max) [A] 1.5 1.3 0.8 0.5 0.3 0.2

PSRR (Typ.) [dB]

@f = 1 kHz

95 90 98 98 100 100 70 - 70
IB (Typ.) [μA] 25 56 20 19 7 7 0.34 1 170

Low current consumption op-amp / Low noise op-amp

Part number TC75S102F TC75S67TU
Package SMV UFV
VDD - VSS [V] 1.5 to 5.5 2.2 to 5.5
VIO (Max) [mV] 1.3 3
CMVIN (Max) [V] VDD 1.4 (@VDD = 2.5 V)
IDD (Typ.) [μA] 0.27 / 0.46 (@VDD = 1.5 V) 430 / 700 (@VDD = 2.5 V) 
VNI (Typ.) [nV/√Hz] @f = 1 kHz 
- 6

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