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ADM2490EBRWZ Fiches technique(PDF) 3 Page - Analog Devices |
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ADM2490EBRWZ Fiches technique(HTML) 3 Page - Analog Devices |
3 / 16 page ADM2490E Rev. A | Page 3 of 16 SPECIFICATIONS All voltages are relative to their respective ground; 2.7 ≤ VDD1 ≤ 5.5 V, 4.5 V ≤ VDD2 ≤ 5.5 V. All minimum/maximum specifications apply over the entire recommended operation range, unless otherwise noted. All typical specifications are at TA = 25°C, VDD1 = VDD2 = 5.0 V, unless otherwise noted. Table 1. Parameter Symbol Min Typ Max Unit Test Conditions SUPPLY CURRENT Power Supply Current, Logic Side TxD/RxD Data Rate < 2 Mbps IDD1 3.0 mA 2.7 V ≤ VDD1 ≤ 5.5 V, unloaded TxD/RxD Data Rate = 16 Mbps IDD1 6 mA 100 Ω load between Y and Z Power Supply Current, Bus Side TxD/RxD Data Rate < 2 Mbps IDD2 4.0 mA 2.7 V ≤ VDD1 ≤ 5.5 V, unloaded TxD/RxD Data Rate = 16 Mbps IDD2 60 mA 100 Ω load between Y and Z DRIVER Differential Outputs Differential Output Voltage, Loaded |VOD2| 2.0 5.0 V RL = 50 Ω (RS-422), see Figure 3 1.5 5.0 V RL = 27 Ω (RS-485), see Figure 3 |VOD4| 1.5 5.0 V −7 V ≤ VTEST1 ≤ +12 V, see Figure 4 ∆|VOD| for Complementary Output States ∆|VOD| 0.2 V RL = 54 Ω or 100 Ω, see Figure 3 Common-Mode Output Voltage VOC 3.0 V RL = 54 Ω or 100 Ω, see Figure 3 ∆|VOC| for Complementary Output States ∆|VOC| 0.2 V RL = 54 Ω or 100 Ω, see Figure 3 Short-Circuit Output Current IOS 200 mA Logic Inputs Input Threshold Low VIL 0.25 × VDD1 V Input Threshold High VIH 0.7 × VDD1 V TxD Input Current ITxD −10 +0.01 +10 μA RECEIVER Differential Inputs Differential Input Threshold Voltage VTH −0.2 +0.2 V Input Voltage Hysteresis VHYS 70 mV VOC = 0 V Input Current (A, B) II 1.0 mA VOC = 12 V −0.8 mA VOC = −7 V Line Input Resistance RIN 12 kΩ Logic Outputs Output Voltage Low VOLRxD 0.2 0.4 V IORxD = 1.5 mA, VA − VB = −0.2 V Output Voltage High VOHRxD VDD1 − 0.3 VDD1 − 0.2 V IORxD = −1.5 mA, VA − VB = 0.2 V Short-Circuit Current 100 mA COMMON-MODE TRANSIENT IMMUNITY1 25 kV/μs VCM = 1 kV, transient magnitude = 800 V 1 CM 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. |
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