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ADM1232ARWZ-REEL1 bảng dữ liệu(PDF) 3 Page - Analog Devices |
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ADM1232ARWZ-REEL1 bảng dữ liệu(HTML) 3 Page - Analog Devices |
3 / 12 page ADM1232 Rev. C | Page 3 of 12 SPECIFICATIONS VCC = full operating range, TA = TMIN to TMAX, unless otherwise noted. Table 1. Parameter Min Typ Max Unit Test Conditions/Comments TEMPERATURE −40 +85 °C TA = TMIN to TMAX. POWER SUPPLY Voltage 4.5 5.0 5.5 V Current 20 50 μA VIL, VIH = CMOS levels. 200 500 μA VIL, 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 VCC is at 4.5 V to 5.5 V. RESET/RESET −8 −12 mA VCC is at 4.5 V to 5.5 V. OUTPUT VOLTAGE RESET/RESET VCC − 0.5 VCC − 0.1 V When sourcing less than 500 μA, RESET remains within 0.5 V of VCC on power-down until VCC drops below 2.0 V. When 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 When sourcing less than 50 μA. RESET Output Voltage 0.1 V When 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 of 20 ms to guarantee a reset. Delay 1 4 20 ms RESET ACTIVE TIME 250 610 1000 ms STROBE Pulse Width 70 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 (see Figure 9). 250 610 1000 ms After VCC rises above the set tolerance voltage. |
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