Datasheet LTM2881 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | Complete Isolated RS485/RS422 μModule Transceiver + Power |
| Pages / Page | 24 / 10 — block DiagraM. TesT circuiTs. Figure 1. Driver DC Characteristics. Figure … |
| File Format / Size | PDF / 594 Kb |
| Document Language | English |
block DiagraM. TesT circuiTs. Figure 1. Driver DC Characteristics. Figure 2. Driver Output Short-Circuit Current
Model Line for this Datasheet
Text Version of Document
LTM2881
block DiagraM
VCC VCC2 2.2µF 5V REG ISOLATED 2.2µF DC/DC CONVERTER VL 2.2µF RO A RX B RE ISOLATED ISOLATED 120Ω DE COMM COMM INTERFACE INTERFACE DI Y DX Z ON SLO TE DIN DOUT GND GND2 2881 BD = LOGIC SIDE COMMON = ISOLATED SIDE COMMON
TesT circuiTs
Y Y GND R IOSD DI + GND DI OR DRIVER V OR DRIVER V OD L – V R + L + VOC – –7V TO 12V Z – Z 2881 F01 2881 F02
Figure 1. Driver DC Characteristics Figure 2. Driver Output Short-Circuit Current
IIN A OR B V + RECEIVER IN – B OR A 2881 F03 VIN RIN = IIN
Figure 3. Receiver Input Current and Input Resistance
2881fi 10 For more information www.linear.com/LTM2881 Document Outline Features Applications Typical Application Description 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 Applications Package Description Revision History Typical Application Related Parts
block DiagraM
VCC VCC2 2.2µF 5V REG ISOLATED 2.2µF DC/DC CONVERTER VL 2.2µF RO A RX B RE ISOLATED ISOLATED 120Ω DE COMM COMM INTERFACE INTERFACE DI Y DX Z ON SLO TE DIN DOUT GND GND2 2881 BD = LOGIC SIDE COMMON = ISOLATED SIDE COMMON
TesT circuiTs
Y Y GND R IOSD DI + GND DI OR DRIVER V OR DRIVER V OD L – V R + L + VOC – –7V TO 12V Z – Z 2881 F01 2881 F02
Figure 1. Driver DC Characteristics Figure 2. Driver Output Short-Circuit Current
IIN A OR B V + RECEIVER IN – B OR A 2881 F03 VIN RIN = IIN
Figure 3. Receiver Input Current and Input Resistance
2881fi 10 For more information www.linear.com/LTM2881 Document Outline Features Applications Typical Application Description 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 Applications Package Description Revision History Typical Application Related Parts
