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AD7707 Datasheet(PDF) 45 Page - Analog Devices |
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AD7707 Datasheet(HTML) 45 Page - Analog Devices |
45 / 53 page AD7707 Rev. B | Page 44 of 52 AD420 DAC CONTROL ROOM AD7707 DVDD +5V AIN2 REF IN(–) AGND MCLK IN MCLK OUT REF IN(+) AVDD AIN1 LOCOM +2.5V AIN3 VBIAS HICOM DGND MICRO- CONTROLLER ACTUATOR/ VALVE ±10V SMART VALVE/ACTUATOR RSENSE Figure 26. Smart Valve/Actuator Control Using the AD7707 REF IN(+) REF IN(–) 4.7µF 100kΩ MCLK IN MCLK OUT AD7707 VCC COM VCC BOOST REF OUT1 REF OUT2 REF IN AD421 C1 C2 C3 COM LOOP RTN COMP DRIVE 4.7µF 0.01µF 0.1µF 2.2µF DN25D 1kΩ 1000pF 0.01µF 0.01µF 0.0033µF SENSORS RTD mV MAIN TRANSMITTER ASSEMBLY AGND DGND THERMOCOUPLE V AIN1 3V 1.25V AIN2 AIN3 MICROCONTROLLER UNIT •PID •RANGE SETTING •CALIBRATION •LINEARIZATION •OUTPUT CONTROL •SERIAL COMMUNICATION •HART PROTOCOL AVDD DVDD 4mA TO 20mA Figure 27. Smart Transmitter Using the AD7707 |
Similar Part No. - AD7707_17 |
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Similar Description - AD7707_17 |
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