AN6701

AN6701S PANASONIC | Alldatasheet

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Technical content

The AN6701S is an integrated circuit designed for tempera- ture sensing. Since a temperature characteristic adjusting cir- cuit and buffer amp. in addition to temperature sensor circuit are integrated, the temperature sensing operation with high sen- sitivity as well as high precision can easily be done by a single external resistor. n Features

• High sensitivity (100mV/˚C)
• Excellent linearity (non linearity.±0.5%)
• Easy calibration with an external resistor
• High precision (±1˚C) with calibration AN6701S Temperature Sensor IC 4 0.4–0.25 0.3 0.15 0.65 1.5–0.2 5.0–0.3 4.2–0.3 6.5–0.3 8-pin PANAFLAT Plastic Package (SOP008-P-0225A) Unit : mm

1 V CC

Temp. Adjuster Buffer Amp. n Block Diagram n Pin Descriptions Pin No. Pin name V CC Output voltage GND R C NC NC NC NC

O perating am bient tem perature Storage tem perature V m A m W Param eter Sym bol R ating U nit n A bsolute M axim um R atings (Ta=25˚C ) –10 to + 80 –55 to +125 Param eter Sym bol C ondition m in typ n Electrical C haracteristics (Ta= –10˚C — +80˚C ) Supply voltage V C C 9R C =10kΩ , R L=∞ Supply current IC C 0.4V C C =15V , R C =10kΩ , R L=∞ , Ta=25˚C O utput voltage V O 2.3N ot calibrated 1), V C C =15V , Ta=0˚C 4N ot calibrated 1), V C C =15V , Ta=25˚C 10 11N ot calibrated 1), V C C =15V , Ta=80˚C 1.1 1.2C alibrated 2), V C C =15V , Ta=–10˚C 8.6 8.8C alibrated 2), V C C =15V , Ta=60˚C 10.8 11C alibrated 2), V C C =15V , Ta=80˚C Supply voltage fluctuate due to output change D V O V 0.15R C =10kΩ , Ta=0˚C , V C C =5 to 15V N on-linearity N L –0.5N ot calibrated 1), V C C =15V , Ta=0 to 80˚C O utput current IO R C =10kΩ , V C C =9V , Ta=25˚C , D V O =–50m V 100 0.2 1.3 O utput resistance R O 30 N ote1) R C =10kΩ N ote2) A djust R C value to be V O =5.0V w hen Ta=25˚C m ax 15 V 0.8 m A 3.3 V V V V V V V –2 % µA 200 1.4 11.2 0.22 Ω U nit A pplicable tem perature Sensitivity (R C =1 to 100kΩ ) N on-linearity O ffset tem perature (R C =1 to 100kΩ ) Therm al constant τ (during quiescent airing) Therm al constant τ (during spray airing) Therm al resistance (during quiescent airing) m V /˚C s s ˚C /W Param eter V alue U nit n Typical C haracteristics –10 to + 80 104 to 112 –0.5 –30 to –10 300 N ote) O ffset tem perature is a tem perature in w hich output becom es “0” w hen input/output characteristics are inserted externally.

V C C =15V R C =10kΩ A m bient Tem perature Ta (˚C ) Supply C urrent IC C (µA ) IC C –Ta 1000 800 600 400 200 0–20 0 20 40 60 80 0–20 0 20 40 60 80 100 A m bient Tem perature Ta (˚C ) O utput V oltage V O (V ) V O –Ta Supply V oltage V C C (V ) Supply C urrent IC C (µA ) IC C –V C C 800 600 400 200 0 4 6 8 10 12 14 16 Tim e t (s) O utput C hange R ate D V O (% ) D V O – t 100 0 10 20 30 40 50 Supply V oltage V C C (V ) O utput V oltage V O (V ) V O –V C C 0 4 6 8 10 12 14 16 114 112 110 108 106 104 O ffset Tem perature Toffset (˚C ) Sensitivity S (m V /˚C ) S – Toffset Ta =25˚C R C = 1kΩ R C =100kΩ 10kΩ 1kΩ10kΩ V C C =15V Ta=80˚C(C alibrated) 60˚C 40˚C 20˚C 0˚C –10˚C T=24s (during quiescent airing) T=11s (during spray airing) V C C =12V D Ta=55˚C n Characteristics Curve

(a) W hen positive pow er supply is used. (c) W hen output polarity is inverted. (b) W hen negative pow er supply is used. 110m V /˚C 110m V /˚C –5 to+15V 5 to 15V 110m V /˚C 10kΩ 10kΩ 100kΩ 100kΩ2 R C R C R C n Application Circuit