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TC03 Datasheet(PDF) 2 Page - TelCom Semiconductor, Inc |
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TC03 Datasheet(HTML) 2 Page - TelCom Semiconductor, Inc |
2 / 7 page 2 TC02 TC03 PRECISION TEMPERATURE- TO -VOLTAGE CONVERTERS PRELIMINARY INFORMATION TC02/03-04 6/18/97 * Static-sensitive device. Unused devices must be stored in conductive material. Protect devices from static discharge and static fields. Stresses above those listed under Absolute Maximum Ratings may cause perma- nent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to Absolute Maximum Rating Conditions for extended periods may affect device reliability. ABSOLUTE MAXIMUM RATINGS * Supply Voltage ............................................................ 15V Input Voltage, Any Terminal .............. – 1.0 to (VCC +0.3V) Operating Temperature (TC02) ............. – 20 °C to +125°C Operating Temperature (TC03) ............. – 20 °C to +100°C Storage Temperature ............................ – 55 °C to +150°C Lead Temperature (Soldering, 10 sec) SOT-23B-3 ..................................................... +260 °C TO-92-3 .......................................................... +300 °C ELECTRICAL CHARACTERISTICS : TA = – 20°C to +125°C, VCC = 5V ±5%, unless otherwise specified. Symbol Parameter Test Conditions Min Typ Max Unit VCC Supply Voltage (TC02) 3.0 — 12 V VCC Supply Voltage (TC03) 2.2 — 12 V IS Supply Current Note 1 — 40 60 µA ISRC VOUT Output Source Current — — 1.0 mA Accuracy at Room Temperature TA = 25°C (Note 2) – 2 ± 0.5 +2 °C Accuracy at Minimum Temperature TC02: TA = – 20°C– 7 ± 0.5 +5 °C TC03: TA = – 20°C– 7 ± 0.5 +5 (Note 2) Accuracy at Maximum Temperature TC02: TA = +125°C – 3 — +3 °C TC03: TA = +100°C – 3 — +3 (Note 2) Nonlinearity Note 3, 4 – 0.8 — +0.8 °C Line Regulation — 80 — µV/V AV Average Slope of Output Voltage — 10 — mV/ °C VOUTMAX Maximum Output Voltage TC02: 3.0V ≤ VCC ≤ 12V TC03: 2.2V ≤ VCC ≤ 12V —— VCC – 1.2 V (Note 1) DETAILED DESCRIPTION A plot of output voltage versus temperature for both the TC02 and TC03 appears in Figure 1. The TC03 can be used with single power supply to measure temperatures from 0 °C to 100°C. A pull-down resistor (R1 in Figure 2) must be added from VOUT to the negative power supply for measuring temperatures less than 0 °C. The value of the resistor must be chosen to limit the maximum current pulled from the output to the negative supply to – 50 µA (i.e. R1 = VSS/50µA). Notes: 1. VOUT outputs open circuited. 2. Accuracy = Difference between calculated output voltage (10mV/ °C x Device case temperature at specified temperature and power supply) and measured output voltage expressed in °C. 3. Nonlinearity = deviation of output voltage versus temperature from the best-fit straight line over the device rated temperature range. 4. Guaranteed by design. OUTPUT STAGE Both the TC02 and TC03 have Class A output stages capable of sourcing 1mA. These devices have a limited ability to drive heavy capacitive loads. Loads of 50pF (to ground) can be driven directly. For heavier loads, a 2k Ω (or greater) resistor should be placed in series with the output for decoupling. If the TC02/03 is used in a noisy electrical environment, a 0.1 µF bypass capacitor from VCC to GND is recommended. |
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