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LTC2857-2 Datasheet(PDF) 4 Page - Linear Technology |
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LTC2857-2 Datasheet(HTML) 4 Page - Linear Technology |
4 / 20 page LTC2856-1/LTC2856-2 LTC2857-1/LTC2857-2 LTC2858-1/LTC2858-2 4 285678ff For more information www.linear.com/LTC2856-1 elecTrical characTerisTics SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Driver |VOD| Differential Driver Output Voltage R = ∞, VCC = 4.5V (Figure 1) l VCC V R = 27 Ω (RS485), VCC = 4.5V (Figure 1) l 1.5 VCC V R = 50 Ω (RS422), VCC = 4.5V (Figure 1) l 2 VCC V Δ|VOD| Change in Magnitude of Driver Differential Output Voltage for Complementary Output States R = 27 Ω or R = 50Ω (Figure 1) l 0.2 V VOC Driver Common Mode Output Voltage R = 27 Ω or R = 50Ω (Figure 1) l 3 V Δ|VOC| Change in Magnitude of Driver Common Mode Output Voltage for Complementary Output States R = 27 Ω or R = 50Ω (Figure 1) l 0.2 V IOZD Driver Three-State (High Impedance) Output Current on Y and Z DE = 0V, (Y or Z) = –7V, 12V, LTC2858-1, LTC2858-2 l ±10 µA IOSD Maximum Driver Short-Circuit Current –7V ≤ (Y or Z) ≤ 12V (Figure 2) l ±120 ±250 mA Receiver IIN Receiver Input Current (A, B) DE = TE = 0V, VCC = 0V or 5V, VIN = 12V (Figure 3) (C, I-Grade) DE = TE = 0V, VCC = 0V or 5V, VIN = –7V, (Figure 3) (C, I-Grade) l l –100 125 µA µA DE = TE = 0V, VCC = 0V or 5V, VIN = 12V (Figure 3) (H-Grade) DE = TE = 0V, VCC = 0V or 5V, VIN = –7V, (Figure 3) (H-Grade) l l –145 250 µA µA RIN Receiver Input Resistance RE = VCC or 0V, DE = TE = 0V, VIN = –7V, –3V, 3V, 7V, 12V (Figure 3) (C, I-Grade) l 96 125 k Ω RE = VCC or 0V, DE = TE = 0V, VIN = –7V, –3V, 3V, 7V, 12V (Figure 3) (H-Grade) l 48 125 k Ω VTH Receiver Differential Input Threshold Voltage –7V ≤ B ≤ 12V l ±0.2 V ΔVTH Receiver Input Hysteresis B = 0V 25 mV VOH Receiver Output High Voltage I(RO) = –4mA, A-B = 200mV, VCC = 4.5V l 2.4 V VOL Receiver Output Low Voltage I(RO) = 4mA, A-B = –200mV, VCC = 4.5V l 0.4 V IOZR Receiver Three-State (High Impedance) Output Current on RO RE = 5V, 0V ≤ RO ≤ VCC, LTC2856-1, LTC2856-2, LTC2858-1, LTC2858-2 l ±1 µA Logic VIH Logic Input High Voltage DE, DI, RE, VCC = 5.5V l 2 V VIL Logic Input Low Voltage DE, DI, RE, VCC = 4.5V l 0.8 V IINL Logic Input Current DE, DI, RE l 0 ±10 µA Supplies ICCS Supply Current in Shutdown Mode DE = 0V, RE = VCC, LTC2856, LTC2858 (C and I-Grade) LTC2856, LTC2858 (H-Grade) l l 0 0 5 15 µA µA ICCR Supply Current in Receive Mode No Load, DE = 0V, RE = 0V, LTC2856-1, LTC2856-2, LTC2858-1, LTC2858-2 l 540 900 µA The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 5V unless otherwise noted. (Note 2) |
Similar Part No. - LTC2857-2 |
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Similar Description - LTC2857-2 |
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