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ADM1232AARN bảng dữ liệu(PDF) 2 Page - Analog Devices |
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ADM1232AARN bảng dữ liệu(HTML) 2 Page - Analog Devices |
2 / 6 page –2– REV. 0 ADM1232A–SPECIFICATIONS (V CC = Full Operating Range, TA = TMIN to TMAX unless otherwise noted) Parameter Min Typ Max Units Test Conditions/Comments TEMPERATURE –40 +85 °CT A = TMIN to TMAX POWER SUPPLY Voltage 4.5 5.0 5.5 V Current 20 50 µAV IL, VIH = CMOS Levels 200 500 µAV IL, VIH = TTL Levels STROBE AND PB RESET INPUTS Input High Level 2.0 VCC + 0.3 V Input Low Level –0.3 +0.8 V INPUT LEAKAGE CURRENT ( STROBE, TOLERANCE) –1.0 +1.0 µA TD 1.6 µA OUTPUT CURRENT RESET 8 10 mA When VCC Is at 4.5 V–5.5 V RESET, RESET –8 –12 mA When VCC Is at 4.5 V–5.5 V OUTPUT VOLTAGE RESET/RESET VCC – 0.5 VCC – 0.1 V While sourcing less than 500 µA, RESET remains within 0.5 V of VCC on power-down until VCC drops below 2.0 V. While sinking less than 500 µA, RESET remains within 0.5 V of GND on power-down until VCC drops below 2.0 V. RESET/RESET High Level 0.4 V RESET/RESET Low Level 2.4 V 1 V OPERATION RESET Output Voltage VCC – 0.1 V While Sourcing Less than 50 µA RESET Output Voltage 0.1 V While Sinking Less than 50 µA VCC TRIP POINT 5% 4.5 4.62 4.74 V TOLERANCE = GND 10% 4.25 4.37 4.49 V TOLERANCE = VCC CAPACITANCE Input ( STROBE, TOLERANCE) 5 pF TA = +25°C Output (RESET, RESET)7 pF TA = +25°C PB RESET Time 20 ms PB RESET Must Be Held Low for a Minimum Delay 1 4 20 ms of 20 ms to Guarantee a Reset RESET ACTIVE TIME 250 610 1000 ms STROBE Pulsewidth 20 ns Timeout Period 62.5 150 250 ms TD = 0 V 250 600 1000 ms TD = Floating 500 1200 2000 ms TD = VCC VCC Fall Time 10 µS Guaranteed by Design Rise Time 0 µS Guaranteed by Design VCC FAIL DETECT TO RESET OUTPUT DELAY RESET AND RESET Are Logically Correct 50 µs After VCC Falls Below the Set Tolerance Voltage (Figure 5) 250 610 1000 ms After VCC Rises Above the Set Tolerance Voltage Specifications subject to change without notice. |
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