LTC491IS#TR The LTC491IS#TR is a low power differential bus transceiver from LT, designed for RS485 and RS422 multipoint data transmission. It operates on a single 5V supply.
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LTC491IS#TR

Available from 1 distributors
Mfr Name: LT
LT
The LTC491IS#TR is a low power differential bus transceiver from LT, designed for RS485 and RS422 multipoint data transmission. It operates on a single 5V supply.
✓ Total Stock: 812 pcs

LTC491IS#TR Available from 1 distributor

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812 pcs
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LTC491IS#TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Industrial Grade
SVHC Present
Tape & Reel

LTC491IS#TR Description

Short technical summary and product information.

The LTC491IS#TR is a low power differential bus transceiver from Linear Technology (LT), designed for multipoint data transmission standards like RS485 and RS422. It supports an extended common mode range from -7V to 12V and a ±7V ground difference between devices.

 

This CMOS design offers significant power savings with a typical quiescent current (ICC) of 300µA. The driver and receiver feature three-state outputs. For protection, it includes thermal shutdown and power-up/down glitch-free driver outputs, allowing live insertion or removal. The receiver has a fail-safe feature that ensures a high output state when inputs are open.

 

Specifications are guaranteed from 0°C to 70°C and a 4.75V to 5.25V supply voltage range. The LTC491IS#TR is pin-compatible with the SN75180 and is available in 14-lead PDIP and SO packages. It supports up to 32 transceivers on the bus.

 

Key electrical characteristics include a typical driver propagation delay of 28ns with 5ns skew for 2.5MB operation, and 70mV typical input hysteresis.

LTC491IS#TR Quick Information

Product Type: Differential Driver and Receiver Pair
Series: LTC491
Canonical Name: LTC491 Differential Driver and Receiver Pair
Subcategory: RS422/RS485 Interface

LTC491IS#TR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

LTC491IS#TR Features

  • Low power consumption, 300µA typical ICC.
  • Designed for RS485 and RS422 applications.
  • Wide common mode range of -7V to 12V.
  • Thermal shutdown protection included.
  • Pin compatible with SN75180.

LTC491IS#TR Applications

  • Multipoint data transmission.
  • RS485 communication systems.
  • RS422 communication systems.
  • Level translation applications.

LTC491IS#TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range?

The supply voltage range is 4.75V to 5.25V (single supply).

What is the operating temperature range?

The operating temperature range is 0°C to 70°C.

What is the package type?

The device is available in a 14-Lead surface mount package.

What is the typical quiescent current?

The typical quiescent current is 300µA.

What is the bus common mode range?

The bus common mode range is -7V to 12V.

What is the typical driver propagation delay?

Typical driver propagation delay is 28ns.

What is the input hysteresis?

Typical input hysteresis is 70mV.

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