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LTC1338IG Datasheet(PDF) 3 Page - Linear Technology |
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LTC1338IG Datasheet(HTML) 3 Page - Linear Technology |
3 / 8 page 3 LTC1338 VCC = 5V, C1 = C2 = C3 = C4 = 0.1µF, unless otherwise noted. ELECTRICAL C C HARA TERISTICS C D CC HARA TERISTICS AC Note 3: Supply current and leakage current measurements in SHUTDOWN are performed with VDRIVER ENABLE and VRECEIVER ENABLE = 0V. Note 4: Supply current measurement in RECEIVER ALIVE mode is performed with VDRIVER ENABLE = 0V and VRECEIVER ENABLE = VCC. The q denotes specifications which apply over the operating temperature range of 0 °C to 70°C or –40°C to 85°C. Note 1: Absolute maximum ratings are those values beyond which the life of the device may be impaired. Note 2: Supply current is measured with driver and receiver outputs unloaded. The VDRIVER ENABLE and VRECEIVER ENABLE = VCC. PARAMETER CONDITIONS MIN TYP MAX UNITS Slew Rate RL = 3k, CL = 51pF 8 30 V/ µs RL = 3k, CL = 2500pF 3 5 V/ µs Driver Propagation Delay tHLD (Figure 1) q 2 3.5 µs (TTL to RS232) tLHD (Figure 1) q 2 3.5 µs Receiver Propagation Delay tHLR (Figure 2) q 0.3 0.8 µs (RS232 to TTL) tLHR (Figure 2) q 0.2 0.8 µs VCC = 5V, C1 = C2 = C3 = C4 = 0.1µF, unless otherwise noted. TYPICAL PERFOR A CE CHARACTERISTICS DATA RATE (k BAUD) 0 40 50 60 60 100 LTC1338 • TPC03 30 20 20 40 80 120 140 10 0 VCC = 5V RL = 3k CL = 2500pF 5 DRIVERS ACTIVE TEMPERATURE (˚C) –40 1.8 2.0 2.2 20 60 LTC1338 • TPC02 1.6 1.4 –20 0 40 80 100 1.2 1.0 VTH VTL TEMPERATURE (°C) –40 –8 –6 –2 0 2 40 10 LTC1338 • TPC01 –4 080 4 6 8 –20 60 20 100 RL = 3k OUTPUT HIGH VCC = 5V VCC = 4.5V OUTPUT LOW VCC = 4.5V VCC = 5V Driver Output Voltage Receiver Input Thresholds Supply Current vs Data Rate PARAMETER CONDITIONS MIN TYP MAX UNITS Power Supply VCC Supply Current No Load (All Driver VIN = VCC)(Note 2) 0°C ≤ TA ≤ 70°C 0.5 1.0 mA No Load (All Driver VIN = 0V)(Note 2) 0°C ≤ TA ≤ 70°C 1.0 1.5 mA No Load (All Driver VIN = VCC)(Note 2) – 40°C ≤ TA ≤ 85°C 0.5 1.5 mA No Load (All Driver VIN = 0V)(Note 2) – 40°C ≤ TA ≤ 85°C 1.0 2.0 mA RECEIVER ALIVE Mode (Note 4) q 50 80 µA Supply Leakage Current (VCC) SHUTDOWN (Note 3) q 0.2 10 µA Driver/Receiver Enable Threshold Low q 1.4 0.8 V Driver/Receiver Enable Threshold High q 2.0 1.4 V |
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