ADT70GR Analog Devices Inc, ADT70GR Datasheet
ADT70GR
Specifications of ADT70GR
Related parts for ADT70GR
ADT70GR Summary of contents
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... Platinum RTDs (PRTDs), allowing a very wide range of temperature measurement. It can also easily interface to 100 PRTDs. Using a remote, low cost thin-film PRTD, the ADT70 can measure temperature in the range of – +500 C. With high performance platinum elements, the temperature change can be extended to 1000 C. Accuracy of the ADT70 and PRTD system over a – ...
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... Input Bias Current Input Offset Current Common-Mode Rejection Output Voltage Swing Power Supply Rejection Ratio VOLTAGE REFERENCE Output Voltage Load Regulation Temperature Coefficient Line Regulation OPERATIONAL AMPLIFIER Input Offset Voltage Input Offset Voltage Drift Input Bias Current Input Offset Current Open-Loop Voltage Gain ...
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... Although the ADT70 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. REV Model 150 C ADT70GR 125 C ADT70GN 125 C 300 C Units JC 24 ...
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... V = +5V, NO LOAD S 1.35 1.3 1.25 1 TEMPERATURE – C Figure 2. System Gain vs. Temperature 0.1 0. +5V, NO LOAD S 0.06 0.04 0.02 0 0.02 0.04 0.06 0.08 0 TEMPERATURE – C Figure 3. Total System Gain PSRR vs. Temperature 100 100 125 Figure 4. Instrumentation Amplifier Input Offset Voltage vs. Temperature 125 Figure 5. Instrumentation Amplifier Output Offset Voltage vs ...
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... Figure 9. Op Amp Input Offset Voltage vs. Temperature REV 125 Figure 10. Op Amp Input Bias Current vs. Temperature 500 400 300 200 100 75 125 Figure 11. Op Amp Input Offset Current vs. Temperature 2.51 2.505 2.5 2.495 2.49 75 125 Figure 12. Reference Voltage vs. Temperature –5– ...
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ADT70 1000 + SOURCING 100 CURRENT 100 LOAD CURRENT – A Figure 13. Op Amp Output Voltage from Rails vs. Load Current 2.52 ...
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PSRR 100 1k 10k FREQUENCY – Hz Figure 19. In Amp PSRR vs. Frequency – A 140 120 100 PSRR 100 1k 10k ...
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... The price of Platinum Resistance Temperature Detectors (PRTDs) are becoming more competitive through the wide use of thin-film-type resistive elements. Temperature Coefficient of Resistance The temperature coefficient (TC, also referred RTD, describes the average resistance change per unit tempera- ture from the ice point to the boiling point of water. R ...
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... From the PRTD’s data sheet, the PRTD’s sensitivity rating ( / C) can be used with the lead-wire resistance to approximate the accuracy error in temperature degree ( C). Following the ex- ample above, the sensitivity of the 100 (taken from PRTD data sheet). Hence the approximate error is: ...
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... V. –V can be grounded when the mea sured temperature is greater than 0 C using PRTD. GND Sense (Pin 13), DGND (Pin 15), and AGND (Pin 2) are all con- nected to ground. If desired, GND Sense could be connected to whatever potential desired for an output offset of the instrumen- tation amplifier ...
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... V from the negative and positive rails and this could cause problems at high temperature, limiting the upper range to 600 C; the physical location of this resistor (if placed at a distance from the ADT70) may have an impact on the noise performance ...
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... PRTD application. However, one undesired effect of introducing the pseudo-ground is the loss in voltage range at high temperature. In our example, the PRTD will only operate from –200 C to +400 C corresponding to an input voltage range 100 ...
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American PRTD Application Circuit The majority of PRTD sensors use a scale factor of 0.00385 / / C. This type of sensor is known as the European PRTD and is the most common PRTD sensor. However, there is also an ...
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ADT70 0.210 (5.33) MAX 0.160 (4.06) 0.115 (2.93) 0.0118 (0.30) 0.0040 (0.10) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 20-Lead Plastic DIP (P-Suffix) 1.060 (26.90) 0.925 (23.50 0.280 (7.11) 0.240 (6.10 0.060 (1.52) PIN 1 ...