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ADM488:  Low Power, Slew Rate Limited RS-485

The ADM488 and ADM489 are low power differential line transceiver suitable for communication on multipoint bus transmission lines.

They are intended for balanced data transmission and comply with both EIA Standards RS-485 and RS-422. Both products contains a single differential line driver and a single differential line receiver making them suitable for full duplex data ...More

ADM488:  Low Power, Slew Rate Limited RS-485

Product Description

The ADM488 and ADM489 are low power differential line transceiver suitable for communication on multipoint bus transmission lines.

They are intended for balanced data transmission and comply with both EIA Standards RS-485 and RS-422. Both products contains a single differential line driver and a single differential line receiver making them suitable for full duplex data transfer.

The ADM489 contains an additional receiver and driver enable control.

The input impedance is 12 kohms, allowing 32 transceivers to be connected on the bus.

The ADM488/ADM489 operates from a single +5 V ± 10% power supply. Excessive power dissipation caused by bus contention or by output shorting is prevented by a thermal shutdown circuit. This feature forces the driver output into a high impedance state if during fault conditions a significant temperature increase is detected in the internal driver circuitry.

The receiver contains a fail-safe feature that results in a logic high output state if the inputs are unconnected (floating). The ADM488/ADM489 is fabricated on BiCMOS, an advanced mixed technology process combining low power CMOS with fast switching bipolar technology.

The ADM488/ADM489 is fully specified over the industrial temperature range and is available in DIP, SOIC and TSSOP packages.

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  • Meets EIA RS-485 Standard
  • 250 kbps Data Rate
  • Single 5 V ± 10% Supply
  • –7 V to +12 V Bus Common-Mode Range
  • 12 kO Input Impedance
  • 2 kV EFT Protection Meets IEC1000-4-4
  • High EM Immunity Meets IEC1000-4-3
  • Reduced Slew Rate for Low EM Interference
  • Short Circuit Protection
  • Excellent Noise Immunity
  • 30 µA Supply Current
  • Function: Driver,Receiver
  • Data Rate: 250kbps
  • #Tx: 1
  • # Rx: 1
  • Operating Temp Range: -40 to +85

Functional Block Diagram for ADM488

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ADN4661 LVDS Driver 600Mbps 1 0 3.3 LVTTL/CMOS LVDS 15 kV HBM $0.68
ADN4662 LVDS Receiver 400Mbps 0 1 3.3 LVDS LVTTL/CMOS 15 kV HBM $0.68
ADN4663 LVDS Driver 600Mbps 2 0 3.3 LVTTL/CMOS LVDS 15 kV HBM $0.80
ADN4664 LVDS Receiver 400Mbps 0 2 3.3 LVDS LVTTL/CMOS 15 kV HBM $0.80
ADN4665 LVDS Driver 400Mbps 4 0 3.3 CMOS, TTL LVDS 15 kV HBM $1.16
ADN4666 LVDS Receiver 400Mbps 0 4 3.3 LVDS CMOS, TTL 15 kV HBM, 8 kV IEC Cont. $1.16
ADN4667 LVDS Driver 400Mbps 4 0 3.3 LVTTL/CMOS LVDS 15 kV HBM $1.16
ADN4668 LVDS Receiver 400Mbps 0 4 3.3 LVDS LVTTL/CMOS 15 kV HBM $1.16
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* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

Pricing, Packaging & Availability

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Package Description
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For detailed drawings and chemical composition please consult our  Package Site

Pin Count
Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

Temperature Range
This is the acceptable operating range of the device. The various ranges specified are as follows:
  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
  • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
  • Automotive: -40 to +125 degrees Celsius
Price
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

Production Availability
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This is the list of Product Change Notifications (PCN) published on the web for this model. Click on the link to access PCN Information.Only select pre-2009 PCN�s are available on-line. To obtain a pre-2009 PCN, contact your ADI Sales Rep. For more information on ADI's PCN process, please visit our PCN Policy Statement page

*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.