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MAX9925AUB+ Datasheet(PDF) 7 Page - Maxim Integrated Products |
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MAX9925AUB+ Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 22 page Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold _______________________________________________________________________________________ 7 Pin Description PIN MAX9924 MAX9925 MAX9926 MAX9927 NAME FUNCTION 1 1 — — IN+ Noninverting Input 2 2 — — IN- Inverting Input — 3 — — OUT Amplifier Output 3 — — — N.C. No Connection. Not internally connected. 4 4 — — BIAS Input Bias. Connect to an external resistor-divider and bypass to ground with a 0.1µF and 10µF capacitor. 5 5 11 11 GND Ground 6 6 13 — ZERO_EN Zero-Crossing Enable. Mode configuration pin, internally pulled up to VCC with 10k Ω resistor. 7 7 — — COUT Comparator Output. Open-drain output, connect a 10k Ω pullup resistor from COUT to VPULLUP. 8 8 — — EXT External Reference Input. Leave EXT unconnected in Modes A1, A2. Apply an external voltage in Modes B, C. 9 9 — — INT_THRS Internal Adaptive Threshold. Mode configuration pin. 10 10 14 14 VCC Power Supply — — 1 1 INT_THRS1 Internal Adaptive Threshold 1. Mode configuration pin. — — 2 2 EXT1 External Reference Input 1. Leave EXT unconnected in Modes A1, A2. Apply an external voltage in Modes B, C. — — 3 3 BIAS1 Input Bias 1. Connect to an external resistor-divider and bypass to ground with a 0.1µF and 10µF capacitor. — — 4 4 COUT1 Comparator Output 1. Open-drain output, connect a 10k Ω pullup resistor from COUT1 to VPULLUP. — — 5 5 COUT2 Comparator Output 2. Open-drain output, connect a 10k Ω pullup resistor from COUT2 to VPULLUP. — — 6 6 BIAS2 Input Bias 2. Connect to an external resistor-divider and bypass to ground with a 0.1µF and 10µF capacitor. — — 7 7 EXT2 External Reference Input 2. Leave EXT unconnected in Modes A1, A2. Apply an external voltage in Modes B, C. — — 8 8 INT_THRS2 Internal Adaptive Threshold 2. Mode configuration pin. — — 9 9 IN2+ Noninverting Input 2 — — 10 10 IN2- Inverting Input 2 — — 12 — DIRN Rotational Direction Output. Open-drain output, connect a pullup resistor from DIRN to VPULLUP. — — — 12 OUT2 Amplifier Output 2 — — — 13 OUT1 Amplifier Output 1 — — 15 15 IN1- Noninverting Input 1 — — 16 16 IN1+ Inverting Input 1 |
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