DAC0832LCWM/NOPB Equivalent & Substitute Parts

Part Overview

The DAC0832LCWM/NOPB is an 8-bit digital-to-analog converter manufactured by Texas Instruments, designed for data acquisition applications requiring current output conversion. This component operates with external voltage references and supports parallel data interfaces across a supply voltage range of 5V to 15V. The device is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

DAC0832LCWM/NOPB

Texas InstrumentsIn Stock: 1029DAC0832LCWM/NOPB Datasheet

Current PartRFQ

DAC081S101CIMKX/NOPB

Texas InstrumentsIn Stock: 4153DAC081S101CIMKX/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DAC0832LCWM/NOPB is determined by the following critical parameters:

• Resolution: 8-bit conversion capability
• Converter Count: Single D/A converter per package
• Output Configuration: Current or voltage output capability
• Data Interface: Parallel or serial communication protocol support
• Reference Architecture: External or supply-referenced operation
• Supply Voltage Compatibility: Operating range overlap with 5V to 15V specification
• Package Form Factor: Surface mount compatibility
• Compliance Status: RoHS3 compliance and active product availability

The DAC081S101CIMKX/NOPB qualifies as a substitute based on matching 8-bit resolution and single converter architecture, though with architectural and interface differences that require system-level evaluation.

Parameter Comparison

Engineering Selection Recommendations

The DAC081S101CIMKX/NOPB is an active product from Texas Instruments with current manufacturing support and extended availability. Both components maintain ROHS3 compliance and are manufactured by the same supplier, ensuring consistent quality standards.

Direct substitution requires verification of the following system-level factors:

• Interface Protocol: The DAC0832LCWM/NOPB uses parallel data input, while the DAC081S101CIMKX/NOPB requires SPI or DSP serial communication. Firmware or hardware interface modification is necessary.
• Output Configuration: The original device provides current output; the substitute provides buffered voltage output. Signal conditioning and load impedance requirements must be re-evaluated.
• Reference Architecture: External reference operation differs from supply-referenced operation. Reference circuit design changes are required.
• Supply Voltage Range: The substitute operates within 2.7V to 5.5V, which overlaps the lower portion of the original specification but does not support the full 5V to 15V range.
• Package Footprint: 20-SOIC to SOT-23-6 transition requires PCB layout modification.

Frequently Asked Questions (FAQ)

Q: Can the DAC081S101CIMKX/NOPB directly replace the DAC0832LCWM/NOPB without circuit modification?

A: No. The substitute requires interface protocol conversion from parallel to SPI/DSP, output signal conditioning from current to voltage, and reference circuit redesign. PCB layout changes are also necessary due to different package geometries.

Q: What is the primary reason for seeking a substitute for the DAC0832LCWM/NOPB?

A: The DAC0832LCWM/NOPB is classified as obsolete. The DAC081S101CIMKX/NOPB is an active product with current manufacturing support and extended lead time availability.

Q: Are both components RoHS compliant?

A: Yes. Both the DAC0832LCWM/NOPB and DAC081S101CIMKX/NOPB are ROHS3 compliant.

Q: What supply voltage range does the substitute support?

A: The DAC081S101CIMKX/NOPB operates with analog and digital supply voltages between 2.7V and 5.5V. Systems requiring operation above 5.5V cannot use this substitute without additional voltage regulation.

Q: How do the data interfaces differ between these components?

A: The DAC0832LCWM/NOPB accepts parallel digital input on multiple pins. The DAC081S101CIMKX/NOPB uses serial communication via SPI or DSP protocols, requiring different microcontroller interface logic.

Q: What package changes are required for substitution?

A: The original device uses a 20-SOIC package (0.295" width, 7.50mm). The substitute uses a SOT-23-6 thin package. PCB footprint redesign and component placement modification are necessary.