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MAX14001 Datasheet(PDF) 10 Page - Maxim Integrated Products |
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MAX14001 Datasheet(HTML) 10 Page - Maxim Integrated Products |
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10 / 34 page  MAX14001/MAX14002 Configurable, Isolated 10-bit ADCs for Multi-Range Binary Inputs www.maximintegrated.com Maxim Integrated │ 10 Pin Configuration Pin Description 20 19 18 17 16 15 13 1 2 3 4 5 6 8 VDDL GNDL FAULT COUT AGND AIN GNDF ISET TOP VIEW MAX14001 MAX14002 CS SCLK SDO GATE IC 14 7 SDI IFET 11 10 GNDL GNDF 12 9 VDD VDDF REFIN 20-SSOP + 7.33mm 7.9mm PIN NAME REFERENCE FUNCTION POWER SUPPLY 20 VDDL GNDL Power Input for the Logic-Side of the MAX14001/MAX14002. Bypass with 10µF||1000pF capacitors to GNDL. 12 VDD GNDL Power Input for the Isolated DC-DC Converter. The DC-DC converter powers the field- side of the MAX14001/MAX14002. Bypass with 10µF||1000pF capacitors to GNDL. 11, 19 GNDL — Power and Signal Ground for All Logic-Side Pins. 9 VDDF GNDF Unregulated Output of the DC-DC Converter. Bypass to GNDF with 0.1µF||1000pF capacitors. The 1000pF capacitor should be placed as close to the pin as possible. 8 GATE GNDF Bias Voltage for the Gate of the External Depletion Mode FET. Connect a 0.01µF capacitor from GATE to GNDF. 2, 10 GNDF — Field-side ground for everything except the ADC front-end and voltage reference. ANALOG 1 ISET GNDF Connect a 120kΩ Resistor From ISET to GNDF. This generates a reference current used to establish the correct bias and inrush currents. Parasitic capacitance on this pin should not exceed 10pF. 7 IFET GNDF Current Sink Input for Inrush and Bias Current. This pin is buffered from high voltage by connecting it to the source of the external high-voltage FET. Connect a 1000pF capacitor from IFET to GNDF. 3 AIN AGND Analog Input. The ADC measures the voltage on this pin with respect to AGND. 4 AGND — Analog Ground Reference for AIN and REFIN 5 REFIN AGND Optional External Voltage Reference Input (Nominally 1.25V). When an external reference is used, connect a 0.1μF bypass capacitor from REFIN to AGND. When an internal reference is used, connect REFIN directly to AGND. 6 IC GNDF Internally Connected. Connect to GNDF. |
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Similar Description - MAX14001 |
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