Product Summary

The ADM485 is a line transceiver. It is 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 independently. When disabled, the outputs are tristated. The applications of the ADM485 are Low Power RS-485 Systems, DTE-DCE Interface, Packet Switching, LocalArea Networks, Data Concentration, Data Multiplexers, Integrated Services Digital Network (ISDN).

Parametrics

ADM485 absolute maximum ratings: (1)VCC: +7V; (2)Driver Input (DI): -0.3V to VCC + 0.3V; (3)Control Inputs (DE, RE): -0.3V to VCC + 0.3V; (4)Receiver Inputs (A, B): -14V to +14V; (5)Driver Outputs: -14V to +14V; (6)Receiver Output: -0.5V to VCC +0.5V; (7)Power Dissipation 8-Pin DIP: 500mW; (8)Power Dissipation 8-Pin SOIC: 450mW; (9)Power Dissipation 8-Pin Cerdip: 500mW; (10)Operating Temperature Range, Commercial (J Version): 0℃ to +70℃, Industrial (A Version): -40℃ to +85℃; (11)Storage Temperature Range: -65℃ to +150℃.

Features

ADM485 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: 10ns; (10)Receiver Propagation Delay: 25ns; (11)High Z Outputs with Power Off; (12)Superior Upgrade for LTC485.

Diagrams

ADM485 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
ADM485
ADM485

Other


Data Sheet

Negotiable 
ADM4850
ADM4850

Other


Data Sheet

Negotiable 
ADM4850ACP-REEL7
ADM4850ACP-REEL7

Analog Devices Inc

IC TXRX RS485/422 115KBPS 8LFCSP

Data Sheet

1-1500: $0.52
ADM4850ACPZ-REEL7
ADM4850ACPZ-REEL7


IC TXRX RS485/422 115KBPS 8LFCSP

Data Sheet

0-1: $1.05
1-10: $0.95
10-25: $0.85
25-100: $0.76
100-250: $0.68
250-500: $0.59
ADM4850AR
ADM4850AR

Analog Devices Inc

IC TXRX RS-485/RS-422 8-SOIC

Data Sheet

1-294: $0.56
ADM4850ARMZ
ADM4850ARMZ


IC TXRX RS485/422 115KBPS 8MSOP

Data Sheet

0-250: $1.04
ADM4850ARMZ-REEL7
ADM4850ARMZ-REEL7


IC TXRX RS485/422 115KBPS 8-MSOP

Data Sheet

0-1: $1.66
1-10: $1.49
10-25: $1.34
25-100: $1.20
100-250: $1.07
250-500: $0.93
ADM4850AR-REEL7
ADM4850AR-REEL7

Analog Devices Inc.

IC TXRX RS485/422 115KBPS 8SOIC

Data Sheet

Negotiable