DAC0832LCWMX Equivalent & Substitute Parts

Part Overview

The DAC0832LCWMX is an 8-bit digital-to-analog converter manufactured by Texas Instruments, designed for data acquisition applications requiring parallel interface control with external voltage reference. The device features current output in an unbuffered configuration with differential output capability. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for system redesign, legacy system maintenance, and component procurement planning.

Substiute Parts

DAC0832LCWMX

Texas InstrumentsIn Stock: 3341DAC0832LCWMX Datasheet

Current PartRFQ

TLC7524CDR

Texas InstrumentsIn Stock: 29661TLC7524CDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DAC0832LCWMX is determined by the following critical parameters:

• Resolution: 8-bit conversion capability
• Output Configuration: Current output, unbuffered, with differential output support
• Interface: Parallel data interface for digital input
• Reference Architecture: External voltage reference requirement
• Supply Voltage Compatibility: Dual supply operation within 5V to 15V range for both analog and digital domains
• Operating Temperature Range: 0°C to 70°C industrial grade
• Package Type: Surface mount technology (SMT)
• Regulatory Compliance: ROHS3 compliance for environmental standards

The TLC7524CDR meets all substitution criteria through equivalent functional specifications, though with architectural and performance differences noted in the parameter comparison.

Parameter Comparison

Engineering Selection Recommendations

The TLC7524CDR serves as the primary substitute for the obsolete DAC0832LCWMX based on functional equivalence across core specifications. Both devices maintain 8-bit resolution, parallel interface architecture, external reference capability, and identical operating temperature ranges. Both are ROHS3 compliant and manufactured by Texas Instruments.

Key considerations for selection:

Advantages of TLC7524CDR: Active product status ensures long-term availability and supply chain continuity. Improved settling time (100ns versus 1µs) provides superior dynamic performance. Enhanced moisture sensitivity rating (MSL 1 versus 2A) indicates superior reliability in humid storage and operational environments. Narrower supply voltage specification (5V, 14.5V ~ 15.5V) requires tighter power supply regulation but reflects modern design standards.

Design Integration Factors: Package transition from 20-SOIC to 16-SOIC requires PCB layout modification. The R-2R architecture of TLC7524CDR differs from the multiplying DAC architecture of DAC0832LCWMX, necessitating circuit-level evaluation of reference voltage handling and output impedance characteristics. Supply voltage tolerance narrowing may require power supply redesign in systems utilizing the full 5V to 15V range of the original device.

Frequently Asked Questions (FAQ)

Q: Can TLC7524CDR directly replace DAC0832LCWMX without circuit modification?

A: Functional substitution is possible due to equivalent resolution, output type, interface, and reference architecture. However, package size change (20-SOIC to 16-SOIC) requires PCB redesign. Circuit-level evaluation is necessary to confirm compatibility with existing reference voltage and output impedance requirements.

Q: What is the primary reason for seeking a substitute for DAC0832LCWMX?

A: The DAC0832LCWMX is classified as obsolete. The TLC7524CDR is an active product with guaranteed long-term availability, making it suitable for new designs and legacy system updates.

Q: Are there differences in supply voltage requirements between these devices?

A: Yes. DAC0832LCWMX accepts 5V to 15V for both analog and digital supplies. TLC7524CDR specifies 5V or 14.5V to 15.5V, requiring tighter power supply regulation. Systems operating at intermediate voltages (6V to 14.4V) may require power supply modification.

Q: How do the settling time specifications compare?

A: TLC7524CDR settles in 100ns typical, compared to 1µs typical for DAC0832LCWMX. This 10-fold improvement in settling time may affect system timing margins and signal acquisition rates in high-speed applications.

Q: What packaging considerations apply to this substitution?

A: DAC0832LCWMX uses 20-SOIC packaging (7.50mm width), while TLC7524CDR uses 16-SOIC packaging (3.90mm width). PCB footprint modification is required. Both are surface mount devices suitable for automated assembly.

Q: Are both devices RoHS compliant?

A: Yes. Both DAC0832LCWMX and TLC7524CDR are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.