DAC0808LCMX Equivalent & Substitute Parts

Part Overview

The DAC0808LCMX is an 8-bit digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for data acquisition applications requiring parallel interface conversion from digital to analog current output. The device operates with external voltage references and supports multiplying DAC architecture, making it suitable for precision analog signal generation in industrial and instrumentation systems.

The DAC0808LCMX is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

DAC0808LCMX

Texas InstrumentsIn Stock: 1288DAC0808LCMX Datasheet

Current PartRFQ

DAC0808LCMX/NOPB

Texas InstrumentsIn Stock: 32064DAC0808LCMX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DAC0808LCMX are identified based on strict equivalence across the following critical parameters:

• 8-bit resolution (Number of Bits)
• Single converter configuration (Number of D/A Converters = 1)
• Current output, unbuffered topology (Output Type)
• Parallel digital interface (Data Interface)
• External reference voltage requirement (Reference Type)
• Multiplying DAC architecture
• 150ns typical settling time (Settling Time)
• ±4.5V to ±18V analog supply voltage range (Voltage - Supply, Analog)
• 0°C to 75°C operating temperature range
• 16-SOIC surface mount package with 0.154" (3.90mm) width
• ROHS3 compliance and MSL Level 1 rating

Only parts meeting all these specifications are classified as direct substitutes. Packaging format variations (Cut Tape vs. Digi-Reel) do not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The DAC0808LCMX/NOPB is the direct functional equivalent to the obsolete DAC0808LCMX. Both parts share identical electrical specifications, thermal characteristics, and package geometry. The primary distinction is product status: DAC0808LCMX/NOPB maintains active production status with significantly higher inventory availability (31,989 units vs. 1,278 units).

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and legacy system support. The packaging format difference (Cut Tape & Digi-Reel for the substitute) does not affect functional performance or PCB assembly compatibility.

For applications requiring the DAC0808 8-bit multiplying DAC architecture with parallel interface and external reference configuration, DAC0808LCMX/NOPB is the recommended selection due to active product status and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can DAC0808LCMX/NOPB be used as a direct replacement for DAC0808LCMX?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The /NOPB designation indicates packaging format (Cut Tape & Digi-Reel) rather than functional differences. Pin configuration, electrical performance, and thermal characteristics are equivalent.

Q: What does the /NOPB suffix mean?

A: The /NOPB suffix indicates the part is supplied in Cut Tape (CT) and Digi-Reel packaging formats. This affects procurement and handling but does not alter the component's electrical or mechanical specifications.

Q: Are there any compatibility concerns when substituting DAC0808LCMX with DAC0808LCMX/NOPB?

A: No compatibility concerns exist. Both parts use the 16-SOIC surface mount package with identical pin assignments, voltage requirements, and operating characteristics. PCB layouts and circuit designs require no modification.

Q: Why is DAC0808LCMX classified as obsolete?

A: The DAC0808LCMX has been superseded by the actively produced DAC0808LCMX/NOPB variant. Texas Instruments maintains the DAC0808 architecture in active production through the /NOPB packaging variant to support ongoing system requirements.

Q: What are the critical parameters for substitution compatibility?

A: Substitution compatibility requires matching: 8-bit resolution, single converter configuration, current output topology, parallel interface, external reference requirement, multiplying DAC architecture, 150ns settling time, ±4.5V to ±18V supply voltage range, 0°C to 75°C operating temperature, and 16-SOIC package format.

Q: Is inventory availability a factor in component selection?

A: Inventory availability influences procurement timeline and cost but does not affect functional equivalence. DAC0808LCMX/NOPB offers significantly higher stock levels (31,989 units), supporting immediate availability for production requirements.