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ADUM7440 Datasheet(PDF) 5 Page - Analog Devices |
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ADUM7440 Datasheet(HTML) 5 Page - Analog Devices |
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5 / 20 page  ADuM7440/ADuM7441/ADuM7442 Rev. B | Page 5 of 20 ELECTRICAL CHARACTERISTICS—MIXED 5 V/3.3 V OPERATION All typical specifications are at TA = 25°C, VDD1 = 5 V, VDD2 = 3.3 V. Minimum/maximum specifications apply over the entire recom- mended operation range of 4.5 V ≤ VDD1 ≤ 5.5 V, 3.0 V ≤ VDD2 ≤ 3.6 V; and −40°C ≤ TA ≤ +105°C, unless otherwise noted. Switching specifications are tested with CL = 15 pF and CMOS signal levels, unless otherwise noted. Table 7. A Grade C Grade Parameter Symbol Min Typ Max Min Typ Max Unit Test Conditions SWITCHING SPECIFICATIONS Data Rate 1 25 Mbps Within PWD limit Propagation Delay tPHL tPLH 55 80 30 42 55 ns 50% input to 50% output Pulse Width Distortion PWD 10 25 2 5 ns |tPLH − tPHL| Change vs. Temperature 5 3 ps/°C Pulse Width PW 250 40 ns Within PWD limit Propagation Delay Skew1 tPSK 20 10 ns Channel Matching Codirectional tPSKCD 25 2 5 ns Opposing-Direction tPSKOD 30 3 6 ns Jitter 2 2 ns 1 tPSK is the magnitude of the worst-case difference in tPHL or tPLH that is measured between units at the same operating temperature, supply voltages, and output load within the recommended operating conditions. Table 8. 1 Mbps—A, C Grades 25 Mbps—C Grade Parameter Symbol Min Typ Max Min Typ Max Unit Test Conditions SUPPLY CURRENT ADuM7440 IDD1 4.4 5.5 28 35 mA IDD2 1.6 2.1 3.5 4.5 mA ADuM7441 IDD1 3.7 5.0 19 27 mA IDD2 2.2 2.8 5.2 7.0 mA ADuM7442 IDD1 3.2 3.9 15 20 mA IDD2 2.0 2.6 7.8 12 mA Table 9. For All Models Parameter Symbol Min Typ Max Unit Test Conditions DC SPECIFICATIONS Logic High Input Threshold VIH 0.7 VDDx V Logic Low Input Threshold VIL 0.3 VDDx V Logic High Output Voltages VOH VDDx − 0.1 VDDx V IOx = −20 µA, VIx = VIxH VDDx− 0.4 VDDx − 0.2 V IOx = −4 mA, VIx = VIxH Logic Low Output Voltages VOL 0.0 0.1 V IOx = 20 µA, VIx = VIxL 0.2 0.4 V IOx = 4 mA, VIx = VIxL Input Current per Channel II −10 +0.01 +10 µA 0 V ≤ VIx≤ VDDx Supply Current per Channel Quiescent Input Supply Current IDDI(Q) 0.77 mA Quiescent Output Supply Current IDDO(Q) 0.40 mA Dynamic Input Supply Current IDDI(D) 0.26 mA/Mbps Dynamic Output Supply Current IDDO(D) 0.02 mA/Mbps AC SPECIFICATIONS Output Rise/Fall Time tR/tF 2.5 ns 10% to 90% Common-Mode Transient Immunity1 |CM| 15 20 kV/µs VIx = VDDx, VCM = 1000 V, transient magnitude = 800 V Refresh Rate fr 1.2 Mbps 1 |CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. |
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