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MAX985 Datasheet(PDF) 9 Page - Maxim Integrated Products |
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MAX985 Datasheet(HTML) 9 Page - Maxim Integrated Products |
9 / 12 page 9 Maxim Integrated MAX985/MAX986/MAX989/ MAX990/MAX993/MAX994 Micropower, Low-Voltage, UCSP/SC70, Rail-to-Rail I/O Comparators Zero-Crossing Detector Figure 3 shows a zero-crossing detector application. The MAX985’s inverting input is connected to ground, and its noninverting input is connected to a 100mVP-P signal source. As the signal at the noninverting input crosses 0V, the comparator’s output changes state. Logic-Level Translator Figure 4 shows an application that converts 5V logic lev- els to 3V logic levels. The MAX986 is powered by the 5V supply voltage, and the pullup resistor for the MAX986’s open-drain output is connected to the 3V supply voltage. This configuration allows the full 5V logic swing without creating overvoltage on the 3V logic inputs. For 3V to 5V logic-level translation, simply connect the 3V supply to VCC and the 5V supply to the pullup resistor. MAX985 IN+ 3 4 OUT 1 2 5 VCC 100mV VCC VEE IN- MAX986 IN- 100k Ω 100k Ω 4 3 RPULLUP 3V (5V) LOGIC OUT OUT 1 5 2 VCC 5V (3V) 3V (5V) VEE 5V (3V) LOGIC IN IN+ Figure 3. Zero-Crossing Detector Figure 4. Logic-Level Translator |
Similar Part No. - MAX985_12 |
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Similar Description - MAX985_12 |
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