Product Summary

The ADM485JN is a differential line transceiver suitable for high speed bidirectional data communication on multipoint bus transmission lines. It is designed for balanced data transmission and complies with both EIA Standards RS-485 and RS-422. The part contains a differential line driver and a differential line receiver. Both the driver and the receiver may be enabled inde-pendently. When disabled, the outputs are tristated. Applications of the ADM485JN include Low Power RS-485 Systems, DTE-DCE Interface, Packet Switching, Local Area Networks, Data Concentration, Data Multiplexers and Integrated Services Digital Network (ISDN).

Parametrics

ADM485JN absolute maximum ratings: (1)VCC: +7 V; (2)Driver Input (DI): -0.3 V to VCC + 0.3 V; (3)Control Inputs (DE, RE): -0.3 V to VCC + 0.3 V; (4)Receiver Inputs (A, B): -14 V to +14 V; (5)Driver Outputs: -14 V to +14 V; (6)Receiver Output: -0.5 V to VCC +0.5 V; (7)Commercial (J Version): 0℃ to +70℃; (8)Industrial (A Version): -40℃ to +85℃; (9)Storage Temperature Range: -65℃ to +150℃.

Features

ADM485JN features: (1)Meets EIA RS-485 Standard; (2)5 Mb/s Data Rate; (3)Single +5 V Supply; (4)–7 V to +12 V Bus Common-Mode Range; (5)High Speed, Low Power BiCMOS; (6)Thermal Shutdown Protection; (7)Short Circuit Protection; (8)Zero Skew Driver; (9)Driver Propagation Delay: 10 ns; (10)Receiver Propagation Delay: 25 ns; (11)High Z Outputs with Power Off; (12)Superior Upgrade for LTC485.

Diagrams

ADM485JN FUNCTIONAL BLOCK DIAGRAM 

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
ADM485JN
ADM485JN

IC TX/RX SINGLE RS-485 5V 8DIP
Data Sheet
0-250: $1.00
ADM485JNZ
ADM485JNZ

IC TXRX SINGLE RS485 5V 8DIP
Data Sheet
0-1: $1.44
1-10: $1.30
10-25: $1.16
25-100: $1.04
100-250: $0.93
250-500: $0.81
500-1000: $0.67
1000-2500: $0.63
2500-5000: $0.62