Datasheet LTC1380, LTC1393 (Analog Devices) - 7
| Hersteller | Analog Devices |
| Beschreibung | Single-Ended 8-Channel/ Differential 4-Channel Analog Multiplexer with SMBus Interface |
| Seiten / Seite | 12 / 7 — TEST CIRCUITS. Figure 1. Switch tON/tOFF Propagation Delay from SMBus … |
| Revision | LTC1380/LTC1393: Single-Ended 8-Channel/ Differential 4-Channel Analog Multiplexer with SMBus Interface Data Sheet |
| Dateiformat / Größe | PDF / 246 Kb |
| Dokumentensprache | Englisch |
TEST CIRCUITS. Figure 1. Switch tON/tOFF Propagation Delay from SMBus STOP Condition
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LTC1380/LTC1393
TEST CIRCUITS
STOP CONDITION STOP CONDITION SCL SCL WITH EN = 1 WITH EN = 0 SDA SDA 1.5V LTC1380 SCL 0.4V S D VD 1.5V R C 1V L L SDA 1V 1V 1k 35pF 0.4V tON tOFF VC 80% V 1/2 • (V D 20% CC + VEE) VC tr < 20ns, tf < 20ns 1380/93 F01
Figure 1. Switch tON/tOFF Propagation Delay from SMBus STOP Condition
SCL SCL SDA SDA LTC1380 OIRR = 20LOG10 (VD/VS) WHERE V S D V S AND VD ARE THE D AC VOLTAGE COMPONENTS VS RL AT S AND D 200mVP-P 1k 100kHz V V C1 C2 1/2 • (V 1/2 • (V CC + VEE) CC + VEE) 1380/93 F02
Figure 2. Off-Channel Isolation (OIRR) Test
STOP CONDITION STOP CONDITION SCL SCL WITH EN = 1 WITH EN = 0 SDA SDA CHARGE INJECTION ∆ 1.5V Q = ∆VD • CL SCL LTC1380 0.4V S D VD C 1.5V L VC SDA 1000pF 0.4V VC V ∆ ∆ D VD VD 1380/93 F03
Figure 3. Charge Injection Test
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TEST CIRCUITS
STOP CONDITION STOP CONDITION SCL SCL WITH EN = 1 WITH EN = 0 SDA SDA 1.5V LTC1380 SCL 0.4V S D VD 1.5V R C 1V L L SDA 1V 1V 1k 35pF 0.4V tON tOFF VC 80% V 1/2 • (V D 20% CC + VEE) VC tr < 20ns, tf < 20ns 1380/93 F01
Figure 1. Switch tON/tOFF Propagation Delay from SMBus STOP Condition
SCL SCL SDA SDA LTC1380 OIRR = 20LOG10 (VD/VS) WHERE V S D V S AND VD ARE THE D AC VOLTAGE COMPONENTS VS RL AT S AND D 200mVP-P 1k 100kHz V V C1 C2 1/2 • (V 1/2 • (V CC + VEE) CC + VEE) 1380/93 F02
Figure 2. Off-Channel Isolation (OIRR) Test
STOP CONDITION STOP CONDITION SCL SCL WITH EN = 1 WITH EN = 0 SDA SDA CHARGE INJECTION ∆ 1.5V Q = ∆VD • CL SCL LTC1380 0.4V S D VD C 1.5V L VC SDA 1000pF 0.4V VC V ∆ ∆ D VD VD 1380/93 F03
Figure 3. Charge Injection Test
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