Datasheet LTM2887 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | SPI/Digital or I2C μModule Isolator with Dual Adjustable 5V Regulators |
| Pages / Page | 38 / 6 — SWITCHING CHARACTERISTICS. The. denotes the specifications which apply … |
| File Format / Size | PDF / 600 Kb |
| Document Language | English |
SWITCHING CHARACTERISTICS. The. denotes the specifications which apply over the specified operating
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LTM2887
SWITCHING CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating temperature range, otherwise specifications are at TA = 25°C. LTM2887-3 VCC = 3.3V, LTM2887-5 VCC = 5V, VL = 3.3V, and GND = GND2 = 0V, ON = VL unless otherwise noted. Specifications apply to all options unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Logic
Maximum Data Rate DI1 → O1, Ix → DOx, CL = 15pF (Note 3) l 10 MHz tPHL, tPLH Propagation Delay CL = 15pF (Figure 1) l 35 60 100 ns tR Rise Time CL = 15pF (Figure 1) l 3 12.5 ns LTM2887-I, DO2, CL = 15pF (Figure 1) l 20 35 ns tF Fall Time CL = 15pF (Figure 1) l 3 12.5 ns LTM2887-I, DO2, CL = 15pF (Figure 1) l 20 35 ns
SPI
Maximum Data Rate Bidirectional Communication (Note 3) l 4 MHz Unidirectional Communication (Note 3) l 8 MHz tPHL, tPLH Propagation Delay CL = 15pF (Figure 1) l 35 60 100 ns tPWU Output Pulse Width Uncertainty SDO, SDI2, CS2 (Note 2) ±50 ns tR Rise Time CL = 15pF (Figure 1) l 3 12.5 ns tF Fall Time CL = 15pF (Figure 1) l 3 12.5 ns tPZH, tPZL Output Enable Time SDOE = ↓, RL = 1kΩ, CL = 15pF (Figure 2) l 50 ns tPHZ, tPLZ Output Disable Time SDOE = ↑, RL = 1kΩ, CL = 15pF (Figure 2) l 50 ns
I2C
Maximum Data Rate (Note 3) l 400 kHz tPHL, tPLH Propagation Delay SCL → SCL2, CL = 15pF (Figure 1) l 150 225 ns SDA → SDA2, RL = Open, CL = 15pF (Figure 3) l 150 250 ns SDA2 → SDA, R l L = 1.1kΩ, CL = 15pF (Figure 3) 300 500 ns tPWU Output Pulse Width Uncertainty SDA, SDA2 (Note 2) ±50 ns tHD;DAT Data Hold Time (Note 2) 600 ns tR Rise Time SDA2, CL = 200pF (Figure 3) l 40 300 ns SDA, RL = 1.1kΩ, CL = 200pF (Figure 3) l 40 250 ns SCL2, CL = 200pF (Figure 1) l 250 ns tF Fall Time SDA2, CL = 200pF (Figure 3) l 40 250 ns SDA, RL = 1.1kΩ, CL = 200pF (Figure 3) l 40 250 ns SCL2, CL = 200pF (Figure 1) l 250 ns tSP Pulse Width of Spikes l 0 50 ns Suppressed by Input Filter
Power Supply
Power-Up Time ON = ↑ to VCC2 (Min) l 3 5 ms ON = ↑ to VL2 (Min) l 3 5 ms 2887fb 6 For more information www.linear.com/LTM2887 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Product Selection Guide Order Information Electrical Characteristics Switching Characteristics Isolation Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Test Circuits Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
SWITCHING CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating temperature range, otherwise specifications are at TA = 25°C. LTM2887-3 VCC = 3.3V, LTM2887-5 VCC = 5V, VL = 3.3V, and GND = GND2 = 0V, ON = VL unless otherwise noted. Specifications apply to all options unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Logic
Maximum Data Rate DI1 → O1, Ix → DOx, CL = 15pF (Note 3) l 10 MHz tPHL, tPLH Propagation Delay CL = 15pF (Figure 1) l 35 60 100 ns tR Rise Time CL = 15pF (Figure 1) l 3 12.5 ns LTM2887-I, DO2, CL = 15pF (Figure 1) l 20 35 ns tF Fall Time CL = 15pF (Figure 1) l 3 12.5 ns LTM2887-I, DO2, CL = 15pF (Figure 1) l 20 35 ns
SPI
Maximum Data Rate Bidirectional Communication (Note 3) l 4 MHz Unidirectional Communication (Note 3) l 8 MHz tPHL, tPLH Propagation Delay CL = 15pF (Figure 1) l 35 60 100 ns tPWU Output Pulse Width Uncertainty SDO, SDI2, CS2 (Note 2) ±50 ns tR Rise Time CL = 15pF (Figure 1) l 3 12.5 ns tF Fall Time CL = 15pF (Figure 1) l 3 12.5 ns tPZH, tPZL Output Enable Time SDOE = ↓, RL = 1kΩ, CL = 15pF (Figure 2) l 50 ns tPHZ, tPLZ Output Disable Time SDOE = ↑, RL = 1kΩ, CL = 15pF (Figure 2) l 50 ns
I2C
Maximum Data Rate (Note 3) l 400 kHz tPHL, tPLH Propagation Delay SCL → SCL2, CL = 15pF (Figure 1) l 150 225 ns SDA → SDA2, RL = Open, CL = 15pF (Figure 3) l 150 250 ns SDA2 → SDA, R l L = 1.1kΩ, CL = 15pF (Figure 3) 300 500 ns tPWU Output Pulse Width Uncertainty SDA, SDA2 (Note 2) ±50 ns tHD;DAT Data Hold Time (Note 2) 600 ns tR Rise Time SDA2, CL = 200pF (Figure 3) l 40 300 ns SDA, RL = 1.1kΩ, CL = 200pF (Figure 3) l 40 250 ns SCL2, CL = 200pF (Figure 1) l 250 ns tF Fall Time SDA2, CL = 200pF (Figure 3) l 40 250 ns SDA, RL = 1.1kΩ, CL = 200pF (Figure 3) l 40 250 ns SCL2, CL = 200pF (Figure 1) l 250 ns tSP Pulse Width of Spikes l 0 50 ns Suppressed by Input Filter
Power Supply
Power-Up Time ON = ↑ to VCC2 (Min) l 3 5 ms ON = ↑ to VL2 (Min) l 3 5 ms 2887fb 6 For more information www.linear.com/LTM2887 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Product Selection Guide Order Information Electrical Characteristics Switching Characteristics Isolation Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Test Circuits Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
