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AM417 Datasheet(PDF) 6 Page - Analog Microelectronics |
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AM417 Datasheet(HTML) 6 Page - Analog Microelectronics |
6 / 6 page RATIOMETRIC VOLTAGE TRANSMITTER AM417 analog microelectronics April 99 6/6 APPLICATION FOR OUTPUT VOLTAGE 0.5...4.5V The current application shows the basic functions of the AM417. With the given values of the ex- ternal components (see List of External Components) the following application features are ad- justed: • VIN = 100mV • G = GIA GOUT = 40 • VOUT = 0.5 – 4.5V • IOUT = +10mA – 0.25mA • IBR = 1mA (ratiometrical supply current for the pressure transducer) LIST OF EXTERNAL COMPONENTS Symbol Description Value Unit T1 BCW68H, BC557C (or similar) low drop, high β at10mA PNP R1 IBR = 1 mA 500 Ω R2 IOUT = 10mA min (100°C) 15 Ω R3 Span (Gain adjustment) 500 Ω R4 VOUT = R3 / (R3 + R4) G 1.5 k Ω RS typical transducer resistor 3.0 (typ.) k Ω RTCS TC span compensation 10 – 120 k Ω RO1, RO2 Offset adjustment 0 – 500 Ω RTCO1, RTCO2 TC offset adjustment 0.1 – 10.0 M Ω C1 330 nF C2 ± 10% 4.7 nF C3 ± 10% 1.0 nF C 1 C 2 R 1 R 4 R 3 C 3 R O1 R O2 R TCS R TCO1 V OUT V S Ground R TCO2 V IN R S RS R S RS IA 4 5 8 7 1 AM417 2 Output Stage 6 3 9R 1R I BR OP V CC T 1 R 2 Figure 5 The information provided herein is believed to be reliable; however, Analog Microelectronics assumes no responsibility for inaccuracies or omissions. Analog Microelectronics assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user's own risk. Prices and specifications are subject to change without notice. No patent rights or licences to any of the circuits described herein are implied or granted to any third party. Analog Microelectronics does not authorise or warrant any Analog Microelectronics product use in life support devices and/or systems. } |
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