IL135Z IKSEMICON | Alldatasheet

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Тable 1 - Maximum ratings Standard Name of parameter Symbol min max Unit of measurement IC current reverse direct IR IF mA Air operation temperature: * - constant mode - short-time TOPER - 55 150 150 200 Storage temperature Tstg -65 150 °С Note - *TJ ≤ 150°С Тable 2 – Temperature parameters. Standard Name of parameter Symbol min Type max Test conditions Temperature Unit output voltage, V UOUT 2,95 2,98 3,01 IR = 1 mA 25 V Non-calibrated temperature error ∆Т1 - 1 IR = 1 mA -55 ÷ 150 temperature error at calibration 25° С ∆Т2 - 0,5 1,5 IR = 1 mA -55 ÷ 150 °С Calibrated error in extended temperature range ∆Т3 - 2 - Тcase=Тmax periodical -55 ÷ 150 °С Non-linearity of temperature characteristic ∆Т4 - 0,3 1 IR = 1 mA -55 ÷ 150 °С Тable 3 – Electrical parameters. Standard Name of parameter Symbol min type. max Test conditions Temperatu re Measurement of output voltage in supply currents range ∆UOUT - 2,5 10 0,45 mА ≤ I R ≤ 5 mА -55 ÷ 150 mV Dynamic impedance ∆R1 - 0,5 - IR = 1 mА 25 Ohm Temperature coefficient of output voltage ТКН - +10 - - 25 mV/°С Time constant: -still air -speed of air is 0,5 m/с - agitated oil τТ - -55 ÷ 150 С Time stability ТСТАБ - 0,2 - - 125 °С/ 1000ч Note – Precise measurements done in agitated oil bath. For other conditions there should be taking into consideration self-heating .

J 377 Оhm 52,3 µV/оС T 308 Оhm 42,8 µV/оС K 293 Оhm 40,8 µV/оС S 45,8 Оhm 6,4 µV/оС Adjustment: compensation of sensor and resistor tolerances

1 Selection of 1N4568

2 Adjustment of voltage drop on element R3 by the

resistor R1 to obtain the value of thermoelectrical coefficient, multiplied by the ambient temperature (in K degrees).

3 Selection of IL135Z and adjustment of R2 for

setting voltage drop on the element R3 according to thermocouple type J – 14,32 mV K – 11,17 mV T – 11,79 mV S – 1,768 mV IL135Z Figure 22 – Circuit of cold junction compensation (compensation for ground thermocouple) *Value of R3 nominal for this thermocouple type Thermo- couple Тhermoelectrical coefficient J 1050 Оhm 365 Оhm 52,3 µV/оС T 856 Оhm 315 Оhm 42,8 µV/оС K 816 Оhm 300 Оhm 40,8 µV/оС S 128 Оhm 46,3 Оhm 6,4 µV/оС Adjustment: compensation of sensor and resistor tolerances

1 Adjustment by the resistor R1 for obtaining voltage drop on

the element R3, equal to thermoelectrical coefficient multiplied by the ambient temperature (in K degrees)

2 Adjustment of the resistor R2 for obtaining some voltage

drop on the element R4 according to thermocouple type J – 14,32 mV K – 11,17 mV T – 11,79 mV S – 1,768 mV IL135Z Figure 23 – Circuit of cold junction compensation with unipolar supply *Value of R3 and R4 nominals for this thermocouple type