ISO1500DBQR The Texas Instruments ISO1500DBQR is a half-duplex, isolated RS-485/RS-422 transceiver with a 1 Mbps data rate. It is designed for robust communication in demanding environments.
Mfr Part #:

ISO1500DBQR

Available from 5 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments ISO1500DBQR is a half-duplex, isolated RS-485/RS-422 transceiver with a 1 Mbps data rate. It is designed for robust communication in demanding environments.
✓ Total Stock: 16,384 pcs
$ Price Range: $1.81

ISO1500DBQR Available from 5 distributors

✓ Authorised
✓ Non-Authorised

ISO1500DBQR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Data Rate
Duplex
ESD Protection
Industrial Grade
Lead Spacing
Medical Grade
Military Grade
Mounting Type
Number of Drivers
Operating Temperature
Package Quantity
Protocol
Receiver Hysteresis
Supplier Device Package
Supplier Package
Type
Voltage

ISO1500DBQR Description

Short technical summary and product information.

The ISO1500DBQR from Texas Instruments is a galvanically-isolated differential line transceiver designed for TIA/EIA RS-485 and RS-422 applications. This device integrates a 3-channel digital isolator and an RS-485 transceiver into an ultra-small 16-pin SSOP package, significantly reducing board space requirements.

 

Key electrical specifications include a 1 Mbps data rate, half-duplex operation, and support for RS422 and RS485 protocols. It operates with logic-side supply voltages from 1.71V to 5.5V and bus-side supply voltages from 4.5V to 5.5V. The transceiver offers robust protection features, including ±16 kV HBM ESD protection on bus I/O and high common-mode transient immunity of 100 kV/µs typical.

 

Designed for reliability, the ISO1500DBQR provides 3000 V RMS isolation for one minute per UL 1577. It operates across an extended temperature range of -40°C to 125°C. The device features a failsafe receiver for bus open, short, and idle conditions, ensuring data integrity. Its ultra-small SSOP package and surface mount type make it suitable for space-constrained designs.

 

This transceiver meets or exceeds TIA/EIA-485-A requirements and offers glitch-free power-up and power-down for hot-plugging applications. Safety certifications include IEC 60950-1, IEC 62368-1, and IEC 61010-1, along with CQC, TUV, and CSA certifications.

ISO1500DBQR Quick Information

Product Type: Transceiver
Canonical Name: ISO1500DBQR Isolated RS-485/RS-422 Transceiver
Subcategory: Isolated RS-485/RS-422 Transceiver

ISO1500DBQR Compliance

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

ISO1500DBQR Estimated Pricing

Qty Low High
1+ $1.81 $1.81

Estimated market price range - modelled values for guidance only, not live distributor offers.

ISO1500DBQR Features

  • Isolated RS-485/RS-422 transceiver
  • 1 Mbps data rate, half-duplex operation
  • ±16 kV HBM ESD protection
  • 3000 V RMS isolation
  • Ultra-small 16-SSOP package

ISO1500DBQR Applications

  • Industrial communication systems
  • Automotive applications
  • Robust data transmission
  • Space-constrained designs

ISO1500DBQR FAQs

6 frequently asked questions generated from this part’s specifications.
What type of transceiver is the ISO1500DBQR?

The ISO1500DBQR is a half-duplex, isolated RS-485 and RS-422 transceiver.

What is the data rate of the ISO1500DBQR transceiver?

The ISO1500DBQR supports a data rate of 1 Mbps.

What are the supply voltage requirements for the ISO1500DBQR?

It requires a logic-side supply voltage between 1.71V and 5.5V, and a bus-side supply voltage between 4.5V and 5.5V.

What is the operating temperature range for the ISO1500DBQR?

The operating temperature range is -40°C to 125°C.

What is the isolation rating of the ISO1500DBQR?

The ISO1500DBQR provides 3000 V RMS isolation for 1 minute per UL 1577.

What package type is the ISO1500DBQR supplied in?

The ISO1500DBQR is supplied in a 16-SSOP package.

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