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ADM2487EBRWZ Scheda tecnica(PDF) 3 Page - Analog Devices |
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3 / 20 page ADM2482E/ADM2487E Rev. 0 | Page 3 of 20 SPECIFICATIONS All voltages are relative to their respective ground; 3.0 V ≤ VDD1 ≤ 5.5 V, 3.0 V ≤ VDD2 ≤ 3.6 V. All minimum/maximum specifications apply over the entire recommended operation range, unless otherwise noted. All typical specifications are at TA = 25°C, VDD1 = 5 V, VDD2 = 3.3 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 < 500 kbps IDD1 3.5 mA Unloaded output ADM2487E TxD/RxD Data Rate = 500 kbps IDD1 4 mA Half-duplex configuration, RTERMINATION = 120 Ω, see Figure 8 ADM2482E TxD/RxD Data Rate = 16 Mbps IDD1 6.0 mA Half-duplex configuration, RTERMINATION = 120 Ω, see Figure 8 Power-Supply Current, Bus Side TxD/RxD Data Rate < 500 kbps IDD2 17 mA Unloaded output ADM2487E TxD/RxD Data Rate = 500 kbps IDD2 40 mA VDD2 = 3.6 V, half-duplex configuration, RTERMINATION = 120 Ω, see Figure 8 ADM2482E TxD/RxD Data Rate = 16 Mbps IDD2 50 mA VDD2 = 3.6 V, half-duplex configuration, RTERMINATION = 120 Ω, see Figure 8 DRIVER Differential Outputs Differential Output Voltage, Loaded |VOD2| 2.0 5.0 V RL = 100 Ω (RS-422), see Figure 2 1.5 5.0 V RL = 54 Ω (RS-485), see Figure 2 |VOD3| 1.5 5.0 V −7 V ≤ VTEST ≤ +12 V, see Figure 3 ∆|VOD| for Complementary Output States ∆|VOD| 0.2 V RL = 54 Ω or 100 Ω, see Figure 2 Common-Mode Output Voltage VOC 3.0 V RL = 54 Ω or 100 Ω, see Figure 2 ∆|VOC| for Complementary Output States ∆|VOC| 0.2 V RL = 54 Ω or 100 Ω, see Figure 2 Short-Circuit Output Current IOS 250 mA Output Leakage Current (Y, Z) IO 125 μA DE = 0 V, RE = 0 V, VCC = 0 V or 3.6 V, VIN = 12 V −100 μA DE = 0 V, RE = 0 V, VCC = 0 V or 3.6 V, VIN = −7 V Logic Inputs Input Threshold Low VIL 0.25 × VDD1 V DE, RE, TxD Input Threshold High VIH 0.7 × VDD1 V DE, RE, TxD Input Current II −10 +0.01 +10 μA DE, RE, TxD RECEIVER Differential Inputs Differential Input Threshold Voltage VTH −200 −125 −30 mV −7 V < VCM < +12 V Input Voltage Hysteresis VHYS 15 mV VOC = 0 V Input Current (A, B) II 125 μA DE = 0 V, VDD = 0 V or 3.6 V, VIN = 12 V −125 μA DE = 0 V, VDD = 0 V or 3.6 V, VIN = −7 V Line Input Resistance RIN 96 kΩ −7 V < VCM < +12 V 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 IOS 100 mA Tristate Output Leakage Current IOZR ±1 μA VDD1 = 5.0 V, 0 V < VO < VDD1 |
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