DS26LS32ACM/NOPB

Overview

The DS26LS32ACM/NOPB is a quad differential line receiver manufactured by Texas Instruments, designed to meet RS-422 and RS-423 standards. It operates from a single 5V supply with a voltage range of 4.75V to 5.25V. The device features TRI-STATE outputs with 8mA sink capability and includes an enable/disable function for all four receivers. Input sensitivity is ±0.2V over the input voltage range of ±7V. It provides a minimum input impedance of 6kΩ and 100mV input hysteresis. The component is housed in a 16-pin SOIC package and supports commercial operating temperatures from 0°C to +70°C.

Feature Summary

• Quad differential line receiver architecture supporting balanced digital data transmission
• TRI-STATE outputs with selectable enable and disable functions common to all channels
• Input pull-up and pull-down resistors integrated to prevent output oscillation on unused channels
• High differential or common-mode input voltage ranges of ±7V

Applications

• Two-wire balanced interface systems compliant with RS-422 standards
• Single wire with driver ground reference configurations per RS-423 specifications
• Federal Standards 1020 and 1030 unbalanced digital data transmission networks

Procurement Notes

Verify the specific ordering suffix against the latest TI Package Option Addendum to confirm lead finish and environmental compliance status. Confirm that the LIFEBUY marketing status aligns with long-term availability requirements for the intended design lifecycle. Ensure the SOIC D package dimensions match the target PCB footprint constraints during layout verification.

Selection Notes

Select this component when designing systems requiring RS-422 or RS-423 compatible reception with TRI-STATE bus interfacing capabilities. The integrated pull-up and pull-down resistors make it suitable for applications where unused receiver channels must be stabilized without external components. Verify that the commercial temperature range of 0°C to +70°C meets the operational environment specifications.

Part Context

This part belongs to the DS26LS32 family of quad differential line receivers produced by Texas Instruments. The 'AC' designation indicates the commercial temperature variant, while the 'M' suffix denotes the SOIC surface-mount package. The '/NOPB' suffix signifies lead-free construction and absence of bromine/antimony flame retardants, adhering to RoHS directives.

Replacement Considerations

DS26LS32CM/NOPB: Identical functional specifications but potentially different marking or lot trace codes.

FAQ

How does the DS26LS32AC differ from the DS26LS33?

The DS26LS32AC has an input sensitivity of ±0.2V over a ±7V input voltage range, whereas the DS26LS33 has an input sensitivity of ±0.5V over a ±15V input voltage range.

What is the purpose of the internal resistors in the DS26LS32AC?

Internal pull-up and pull-down resistors are included to prevent output oscillation on unused receiver channels, eliminating the need for external stabilization components.

Can the DS26LS32AC drive a data bus directly?

Yes, the device features TRI-STATE outputs with 8mA sink capability, allowing them to be connected directly onto a data bus when enabled or disabled via the common control inputs.