DAC0832LCWM Equivalent & Substitute Parts

Part Overview

The DAC0832LCWM is an 8-bit digital-to-analog converter manufactured by Texas Instruments, designed for data acquisition applications requiring parallel interface control with external voltage references. The device operates as a multiplying DAC with unbuffered current output and differential output capability, supporting analog and digital supply voltages in the 5V to 15V range.

The DAC0832LCWM is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support legacy system maintenance where component replacement or redesign is required.

Substiute Parts

DAC0832LCWM

Texas InstrumentsIn Stock: 2014DAC0832LCWM Datasheet

Current PartRFQ

TLC7524CD

Texas InstrumentsIn Stock: 1710TLC7524CD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DAC0832LCWM is determined by the following core electrical and mechanical parameters:

• Resolution: 8-bit conversion capability
• Output Configuration: Current-mode unbuffered output with differential capability
• Interface: Parallel data input
• Reference Input: External voltage reference requirement
• Supply Voltage Range: Compatibility with 5V to 15V analog and digital supplies
• Operating Temperature: 0°C to 70°C range
• Package Type: Surface mount SOIC configuration
• Compliance: ROHS3 compliance and REACH unaffected status

The TLC7524CD meets these core substitution criteria while operating as an active product with improved electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The TLC7524CD is the manufacturer-recommended substitute for the DAC0832LCWM. Both devices maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent component selection.

The TLC7524CD offers active product status, ensuring continued availability and manufacturing support. The device maintains functional equivalence across all critical electrical parameters: 8-bit resolution, parallel interface, external reference capability, unbuffered current output with differential configuration, and identical operating temperature range.

The TLC7524CD demonstrates improved settling time performance (100ns versus 1µs typical) and superior moisture sensitivity rating (MSL 1 versus MSL 2A), providing enhanced reliability characteristics. Supply voltage specifications are narrower but encompass the standard 5V operating point and 15V nominal supply range.

Package configuration differs: the TLC7524CD uses 16-SOIC versus the 20-SOIC of the DAC0832LCWM. This reduction in pin count reflects architectural optimization in the R-2R design. PCB layout and schematic modifications are required to accommodate the different package footprint and pin assignment.

Frequently Asked Questions (FAQ)

Q: Can the TLC7524CD directly replace the DAC0832LCWM without circuit modification?

A: Functional substitution is possible due to equivalent electrical specifications. However, the package change from 20-SOIC to 16-SOIC requires PCB layout redesign and verification of pin-to-pin signal routing. Schematic review is necessary to confirm pin assignment compatibility.

Q: What are the key differences in supply voltage specifications?

A: The DAC0832LCWM accepts 5V to 15V for both analog and digital supplies. The TLC7524CD specifies 5V or 14.5V to 15.5V, with narrower tolerance at the 15V nominal point. Applications using 5V single supply operation are compatible with both devices. Systems requiring intermediate supply voltages (6V to 14.4V) must be evaluated against the TLC7524CD specification.

Q: How does the settling time difference affect circuit performance?

A: The TLC7524CD settling time of 100ns is significantly faster than the DAC0832LCWM typical 1µs. This improvement reduces output stabilization delay and may allow higher data conversion rates. Applications with strict timing requirements benefit from this performance enhancement.

Q: What is the impact of the different SOIC package widths?

A: The 20-SOIC package (7.50mm width) differs from the 16-SOIC package (3.90mm width). This affects PCB footprint area, pin spacing, and component density. Existing PCB designs require layout modification to accommodate the smaller package.

Q: Are there compliance or certification differences between the two devices?

A: Both devices maintain ROHS3 compliance and REACH unaffected status. The TLC7524CD offers superior moisture sensitivity (MSL 1 unlimited storage versus MSL 2A 4-week limit), reducing handling and storage constraints in manufacturing environments.