DAC61408RHAR Equivalent & Substitute Parts

Part Overview

The DAC61408RHAR is a 12-bit digital-to-analog converter manufactured by Texas Instruments, designed for data acquisition applications requiring eight independent voltage output channels. This component features an internal reference, buffered voltage outputs, and dual supply rails supporting both analog and digital domains. The part is currently in active production status with full RoHS3 compliance and REACH unaffected designation.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across all critical parameters. The DAC61408RHAR is available in tube packaging, while alternative configurations may differ in packaging format while preserving functional equivalence.

Substiute Parts

DAC61408RHAR

Texas InstrumentsIn Stock: 1407DAC61408RHAR Datasheet

Current PartRFQ

DAC61408RHAT

Texas InstrumentsIn Stock: 1169DAC61408RHAT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DAC61408RHAR is determined by strict equivalence across all electrical and mechanical parameters. The primary substitute identified is the DAC61408RHAT, which maintains identical specifications across the following critical parameters:

Electrical Equivalence Criteria:

• 12-bit resolution with 8 independent D/A converter channels
• 12µs typical settling time
• Buffered voltage output with differential output capability
• SPI and DSP data interface support
• Internal reference architecture
• Identical supply voltage ranges for both analog (4.5V ~ 5.5V) and digital (4.5V ~ 5.5V) domains
• Matching INL/DNL specifications (±0.5 LSB for both parameters)
• R-2R converter architecture

Mechanical Equivalence Criteria:

• 40-VQFN (6x6) package with exposed pad
• Surface mount configuration
• Identical moisture sensitivity level (MSL 3, 168 hours)

Compliance Equivalence:

• RoHS3 compliance maintained
• REACH unaffected status preserved
• Active product status

The only distinction between the DAC61408RHAR and DAC61408RHAT is the packaging format: the RHAR variant is supplied in tube packaging, while the RHAT variant is supplied in tape and reel (TR) format. This difference affects only the delivery and handling method, not the electrical or mechanical performance of the component.

Parameter Comparison

Engineering Selection Recommendations

Both the DAC61408RHAR and DAC61408RHAT are active production components from Texas Instruments with full RoHS3 compliance and REACH unaffected status. Selection between these parts is based on supply chain requirements and packaging format preferences rather than electrical performance differences.

DAC61408RHAR (Tube Packaging): Suitable for applications requiring smaller order quantities, prototype development, or manual assembly workflows where tube packaging facilitates component handling and placement.

DAC61408RHAT (Tape & Reel Packaging): Appropriate for high-volume production environments utilizing automated pick-and-place assembly equipment. Tape and reel format optimizes manufacturing throughput and reduces component handling labor.

Both variants maintain identical electrical specifications, mechanical dimensions, thermal characteristics, and regulatory compliance across all operating conditions within the -40°C to 125°C temperature range. PCB layout, schematic design, and firmware implementation remain unchanged between variants.

Frequently Asked Questions (FAQ)

Q: Can DAC61408RHAT be used as a direct replacement for DAC61408RHAR in production assembly?

A: Yes. The DAC61408RHAT is electrically and mechanically equivalent to the DAC61408RHAR. The only difference is packaging format (tape and reel versus tube). Both components are identical in all electrical parameters, pin configuration, package dimensions, and compliance certifications. Production assembly processes may require adjustment to accommodate tape and reel feeding systems if not already in place.

Q: Are there any performance differences between tube and tape & reel packaged variants?

A: No. The DAC61408RHAR and DAC61408RHAT contain identical silicon dies and deliver identical electrical performance. Packaging format affects only logistics, storage, and assembly methodology, not component functionality or specifications.

Q: What is the moisture sensitivity level, and how does it affect storage?

A: Both variants carry MSL 3 rating with a 168-hour floor life. This indicates the component can be exposed to ambient conditions (typically 30°C, 60% relative humidity) for up to 168 hours after moisture barrier bag opening before reflow soldering. Extended storage requires sealed packaging with desiccant. Tape and reel packaging typically includes moisture barrier protection; tube packaging requires equivalent protection measures.

Q: Are both parts RoHS3 compliant?

A: Yes. Both DAC61408RHAR and DAC61408RHAT are ROHS3 compliant and REACH unaffected, meeting all current environmental and regulatory requirements for commercial and industrial applications.

Q: What data interfaces are supported?

A: Both variants support SPI and DSP interfaces, enabling integration with standard microcontroller and digital signal processor platforms. Interface timing and protocol specifications remain identical across both part numbers.

Q: Can these parts operate with different supply voltages?

A: Both the analog and digital supply rails require 4.5V to 5.5V. Single supply operation is not supported. Both analog and digital domains must be powered within this specified range for proper device operation.

Q: What is the typical settling time for output voltage changes?

A: Both variants exhibit 12µs typical settling time, enabling applications requiring moderate-speed analog output updates. This specification applies across the full operating temperature range of -40°C to 125°C.