Datasheet LTM2885 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 6500VRMS Isolated RS485/RS422 μModule Transceiver + Power |
| 页数 / 页 | 22 / 5 — SWI. TCHING CHARACTERISTICS The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 1.1 Mb |
| 文件语言 | 英语 |
SWI. TCHING CHARACTERISTICS The. denotes the specifications which apply over the full operating
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LTM2885
SWI TCHING CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 5.0V, VL = 3.3V, GND = GND2 = 0V, ON = VL unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Driver SLO = VCC2
fMAX Maximum Data Rate (Note 3) 20 Mbps tPLHD Driver Input to Output RDIFF = 54Ω, CL = 100pF l 60 85 ns tPHLD (Figure 4) ∆tPD Driver Input to Output Difference RDIFF = 54Ω, CL = 100pF l 1 8 ns |tPLHD – tPHLD| (Figure 4) tSKEWD Driver Output Y to Output Z RDIFF = 54Ω, CL = 100pF l 1 ±8 ns (Figure 4) tRD Driver Rise or Fall Time RDIFF = 54Ω, CL = 100pF l 4 12.5 ns tFD (Figure 4) tZLD, tZHD, Driver Output Enable or Disable RL = 500Ω, CL = 50pF l 170 ns tLZD, tHZD Time (Figure 5)
Driver SLO = GND2
fMAX Maximum Data Rate (Note 3) 250 kbps tPLHD Driver Input to Output RDIFF = 54Ω, CL = 100pF 1 1.55 µs tPHLD (Figure 4) ∆tPD Driver Input to Output Difference RDIFF = 54Ω, CL = 100pF 50 500 ns |tPLHD – tPHLD| (Figure 4) tSKEWD Driver Output Y to Output Z RDIFF = 54Ω, CL = 100pF ±200 ±750 ns (Figure 4) tRD Driver Rise or Fall Time RDIFF = 54Ω, CL = 100pF l 0.9 1.5 µs tFD (Figure 4) tZLD, tZHD, Driver Output Enable or Disable RL = 500Ω, CL = 50pF l 400 ns tLZD, tHZD Time (Figure 5)
Receiver
tPLHR Receiver Input to Output CL = 15pF, VCM = 2.5V, |VAB| = 1.4V, l 100 140 ns tPHLR tR and tF < 4ns, (Figure 6) tSKEWR Differential Receiver Skew CL = 15pF l 1 8 ns |tPLHR – tPHLR| (Figure 6) tRR Receiver Output Rise or Fall Time CL = 15pF l 3 12.5 ns tFR (Figure 6) tZLR, tZHR, Receiver Output Enable or RL =1kΩ, CL = 15pF l 50 ns tLZR, tHZR Disable Time (Figure 7) tRTEN, tRTZ Termination Enable or Disable RE = 0V, DE = 0V, VAB = 2V, VB = 0V (Figure 8) l 100 µs Time
Generic Logic Input
tPLHL1 DIN to DOUT Input to Output CL = 15pF, l 60 100 ns tPHLL1 tR and tF < 4ns
Power Supply Generator
VCC2 – GND2 Supply Start-Up ON V Time L, No Load l 200 500 µs (0V to 4.5V) 2885fa For more information www.linear.com/LTM2885 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Switching Characteristics Isolation Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Functional Table Applications Information Typical Application Related Parts
SWI TCHING CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 5.0V, VL = 3.3V, GND = GND2 = 0V, ON = VL unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Driver SLO = VCC2
fMAX Maximum Data Rate (Note 3) 20 Mbps tPLHD Driver Input to Output RDIFF = 54Ω, CL = 100pF l 60 85 ns tPHLD (Figure 4) ∆tPD Driver Input to Output Difference RDIFF = 54Ω, CL = 100pF l 1 8 ns |tPLHD – tPHLD| (Figure 4) tSKEWD Driver Output Y to Output Z RDIFF = 54Ω, CL = 100pF l 1 ±8 ns (Figure 4) tRD Driver Rise or Fall Time RDIFF = 54Ω, CL = 100pF l 4 12.5 ns tFD (Figure 4) tZLD, tZHD, Driver Output Enable or Disable RL = 500Ω, CL = 50pF l 170 ns tLZD, tHZD Time (Figure 5)
Driver SLO = GND2
fMAX Maximum Data Rate (Note 3) 250 kbps tPLHD Driver Input to Output RDIFF = 54Ω, CL = 100pF 1 1.55 µs tPHLD (Figure 4) ∆tPD Driver Input to Output Difference RDIFF = 54Ω, CL = 100pF 50 500 ns |tPLHD – tPHLD| (Figure 4) tSKEWD Driver Output Y to Output Z RDIFF = 54Ω, CL = 100pF ±200 ±750 ns (Figure 4) tRD Driver Rise or Fall Time RDIFF = 54Ω, CL = 100pF l 0.9 1.5 µs tFD (Figure 4) tZLD, tZHD, Driver Output Enable or Disable RL = 500Ω, CL = 50pF l 400 ns tLZD, tHZD Time (Figure 5)
Receiver
tPLHR Receiver Input to Output CL = 15pF, VCM = 2.5V, |VAB| = 1.4V, l 100 140 ns tPHLR tR and tF < 4ns, (Figure 6) tSKEWR Differential Receiver Skew CL = 15pF l 1 8 ns |tPLHR – tPHLR| (Figure 6) tRR Receiver Output Rise or Fall Time CL = 15pF l 3 12.5 ns tFR (Figure 6) tZLR, tZHR, Receiver Output Enable or RL =1kΩ, CL = 15pF l 50 ns tLZR, tHZR Disable Time (Figure 7) tRTEN, tRTZ Termination Enable or Disable RE = 0V, DE = 0V, VAB = 2V, VB = 0V (Figure 8) l 100 µs Time
Generic Logic Input
tPLHL1 DIN to DOUT Input to Output CL = 15pF, l 60 100 ns tPHLL1 tR and tF < 4ns
Power Supply Generator
VCC2 – GND2 Supply Start-Up ON V Time L, No Load l 200 500 µs (0V to 4.5V) 2885fa For more information www.linear.com/LTM2885 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Switching Characteristics Isolation Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Functional Table Applications Information Typical Application Related Parts