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ADM3251E_VE Fiches technique(PDF) 3 Page - Analog Devices |
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ADM3251E_VE Fiches technique(HTML) 3 Page - Analog Devices |
3 / 16 page ADM3251E Rev. E | Page 3 of 16 SPECIFICATIONS All voltages are relative to their respective ground; all minimum/maximum specifications apply over the entire recommended operating range; TA = 25°C and VCC = 5.0 V (dc-to-dc converter enabled), unless otherwise noted. Table 1. Parameter Min Typ Max Unit Test Conditions/Comments DC CHARACTERISTICS VCC Operating Voltage Range 4.5 5.5 V DC-to-DC Converter Enable Threshold, VCC(ENABLE)1 4.5 V DC-to-DC Converter Disable Threshold, VCC(DISABLE)1 3.7 V DC-to-DC Converter Enabled Input Supply Current, ICC(ENABLE) 110 mA VCC = 5.5 V, no load 145 mA VCC = 5.5 V, RL = 3 kΩ VISO Output2 5.0 V IISO = 0 μA LOGIC Transmitter Input, TIN Logic Input Current, ITIN −10 +0.01 +10 μA Logic Low Input Threshold, VTINL 0.3 VCC V Logic High Input Threshold, VTINH 0.7 VCC V Receiver Output, ROUT Logic High Output, VROUTH VCC − 0.1 VCC V IROUTH = −20 μA VCC − 0.5 VCC − 0.3 V IROUTH = −4 mA Logic Low Output, VROUTL 0.0 0.1 V IROUTH = 20 μA 0.3 0.4 V IROUTH = 4 mA RS-232 Receiver, RIN EIA-232 Input Voltage Range3 −30 +30 V EIA-232 Input Threshold Low 0.6 2.0 V EIA-232 Input Threshold High 2.1 2.4 V EIA-232 Input Hysteresis 0.1 V EIA-232 Input Resistance 3 5 7 kΩ Transmitter, TOUT Output Voltage Swing (RS-232) ±5 ±5.7 V RL = 3 kΩ to GND Transmitter Output Resistance 300 Ω VISO = 0 V Output Short-Circuit Current (RS-232) ±12 mA TIMING CHARACTERISTICS Maximum Data Rate 460 kbps RL = 3 kΩ to 7 kΩ, CL = 50 pF to 1000 pF Receiver Propagation Delay tPHL 190 ns tPLH 135 ns Transmitter Propagation Delay 650 ns RL = 3 kΩ, CL = 1000 pF Transmitter Skew 80 ns Receiver Skew 70 ns Transition Region Slew Rate3 5.5 10 30 V/μs +3 V to −3 V or −3 V to +3 V, VCC = +3.3 V, RL = 3 kΩ, CL = 1000 pF, TA = 25°C AC SPECIFICATIONS Output Rise/Fall Time, tR/tF (10% to 90%) 2.3 ns CL = 15 pF, CMOS signal levels Common-Mode Transient Immunity at Logic High Output4 25 kV/μs VCM = 1 kV, transient magnitude = 800 V Common-Mode Transient Immunity at Logic Low Output4 25 kV/μs VCM = 1 kV, transient magnitude = 800 V ESD PROTECTION (RIN And TOUT PINS) ±15 kV Human body model air discharge ±8 kV Human body model contact discharge 1 Enable/disable threshold is the VCC voltage at which the internal dc-to-dc converter is enabled/disabled. 2 To maintain data sheet specifications, do not draw current from VISO. 3 Guaranteed by design. 4 VCM is the maximum common-mode voltage slew rate that can be sustained while maintaining specification-compliant operation. VCM is the common-mode potential difference between the logic and bus sides. The transient magnitude is the range over which the common mode is slewed. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. |
Numéro de pièce similaire - ADM3251E_VE |
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Description similaire - ADM3251E_VE |
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