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DS3691 Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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DS3691 Datasheet(HTML) 3 Page - National Semiconductor (TI) |
3 / 10 page AC Electrical Characteristics (Note 6) T A = 25˚C Symbol Parameter Conditions Min Typ Max Units RS-422 CONNECTION, V CC = 5V, MODE SELECT = 0.8V t r Output Rise Time R L = 100 Ω,C L = 500 pF (Figure 1 ) 120 200 ns t f Output Fall Time R L = 100 Ω,C L = 500 pF (Figure 1 ) 120 200 ns t PDH Output Propagation Delay R L = 100 Ω,C L = 500 pF (Figure 1 ) 120 200 ns t PDL Output Propagation Delay R L = 100 Ω,C L = 500 pF (Figure 1 ) 120 200 ns t PZL TRI-STATE Delay R L = 450 Ω,C L = 500 pF, CC =0pF (Figure 4 ) 250 350 ns t PZH TRI-STATE Delay R L = 450 Ω,C L = 500 pF, CC =0pF (Figure 4 ) 180 300 ns t PLZ TRI-STATE Delay R L = 450 Ω,C L = 500 pF, CC =0pF (Figure 4 ) 180 300 ns t PHZ TRI-STATE Delay R L = 450 Ω,C L = 500 pF, CC =0pF (Figure 4 ) 250 350 ns DC Electrical Characteristics (Notes 3, 4, 5, 6) Symbol Parameter Conditions Min Typ Max Units RS-423 CONNECTION, |V CC|=|V EE|, MODE SELECT ≥ 2V V IH High Level Input Voltage 2 V V IL Low Level Input Voltage 0.8 V I IH High Level Input Current V IN = 2.4V 1 40 µA V IN ≤ 15V 10 100 µA I IL Low Level Input Current V IN = 0.4V −30 −200 µA V I Input Clamp Voltage I IN = −12 mA −1.5 V V O Output Voltage R L = ∞, (Note 7) V IN = 2V 4.0 4.4 6.0 V V O V CC ≥ 4.75V V IN = 0.4V −4.0 −4.4 −6.0 V V T Output Voltage R L = 450 Ω V IN = 2.4V 3.6 4.1 V V T V CC ≥ 4.75V V IN = 0.4V −3.6 −4.1 V |V T|−|VT | Output Unbalance |V CC|=|VEE| = 4.75V, R L = 450 Ω 0.02 0.4 V I X + Output Leakage Power OFF V CC =V EE =0V V O = 6V 2 100 µA I X − Output Leakage Power OFF V CC =V EE =0V V O = −6V −2 −100 µA I S + Output Short Circuit Current V O =0V V IN = 2.4V −80 −150 mA I S − Output Short Circuit Current V O =0V V IN = 0.4V 80 150 mA I SLEW Slew Control Current ±140 µA I CC Positive Supply Current V IN = 0.4V, RL = ∞ 18 30 mA I EE Negative Supply Current V IN = 0.4V, RL = ∞ −10 −22 mA Note 2: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The tables of “Electrical Characteristics” provide conditions for actual device operation. Note 3: Unless otherwise specified, min/max limits apply across the −55˚C to +125˚C temperature range for the DS1691A and across the 0˚C to +70˚C range for the DS3691. All typicals are given for V CC = 5V and TA = 25˚C. VCC and VEE as listed in operating conditions. Note 4: All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to ground unless otherwise specified. Note 5: Only one output at a time should be shorted. Note 6: Symbols and definitions correspond to EIA RS-422 and/or RS-423 where applicable. Note 7: At −55˚C, the output voltage is +3.9V minimum and −3.9V minimum. AC Electrical Characteristics (Note 6) T A = 25˚C Symbol Parameter Conditions Min Typ Max Units RS-423 CONNECTION, V CC = 5V, VEE −5V, MODE SELECT = 2.4V t r Rise Time R L = 450 Ω,C L = 500 pF, CC =0(Figure 2 ) 120 300 ns t f Fall Time R L = 450 Ω,C L = 500 pF, CC =0(Figure 2 ) 120 300 ns t r Rise Time R L = 450 Ω,C L = 500 pF CC =50pF(Figure 3 ) 3.0 µs t f Fall Time R L = 450 Ω,C L = 500 pF CC =50pF(Figure 3 ) 3.0 µs t rc Rise Time Coefficient R L = 450 Ω,C L = 500 pF, CC =50pF(Figure 3 ) 0.06 µs/pF www.national.com 3 |
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