DAC8168IAPW Equivalent & Substitute Parts

Part Overview

The DAC8168IAPW is a 14-bit digital-to-analog converter manufactured by Texas Instruments, featuring 8 independent D/A converter channels in a 14-TSSOP surface mount package. This device is designed for applications requiring multi-channel analog signal generation with buffered voltage outputs and supports both SPI and DSP data interfaces. The part is currently in active production status with 1321 units available in stock. Alternative components may be required due to supply constraints, design optimization, or specific application requirements.

Substiute Parts

DAC8168IAPW

Texas InstrumentsIn Stock: 1345DAC8168IAPW Datasheet

Current PartRFQ

AD5648BRUZ-1

Analog Devices Inc.In Stock: 1111AD5648BRUZ-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DAC8168IAPW is based on strict equivalence of the following critical parameters:

• 14-bit resolution with 8 independent D/A converter channels
• Buffered voltage output configuration
• SPI and DSP digital interface support
• External and internal reference capability
• Supply voltage range: 2.7V ~ 5.5V (both analog and digital)
• String DAC architecture
• 14-TSSOP surface mount package with identical physical dimensions
• ROHS3 compliance and EAR99 export classification

The AD5648BRUZ-1 from Analog Devices Inc. meets all these core functional and physical requirements, making it a valid substitute within the constraints of the allowed parameter set.

Parameter Comparison

Engineering Selection Recommendations

Both the DAC8168IAPW and AD5648BRUZ-1 are active production components with ROHS3 compliance and EAR99 export classification. The AD5648BRUZ-1 offers improved settling time (7µs versus 10µs) and lower moisture sensitivity level (MSL 1 versus MSL 2), which may provide advantages in high-speed applications and extended storage conditions. The DAC8168IAPW maintains a wider operating temperature range (-40°C to 125°C versus -40°C to 105°C) and tighter INL/DNL specifications (±1, ±0.1 LSB versus ±2, ±0.5 LSB maximum). Selection between these parts should be based on specific application requirements regarding settling time, temperature range, and linearity specifications.

Frequently Asked Questions (FAQ)

Q: Can the AD5648BRUZ-1 directly replace the DAC8168IAPW in existing designs?

A: Yes, the AD5648BRUZ-1 is functionally equivalent for applications requiring 14-bit, 8-channel D/A conversion with buffered voltage outputs, SPI/DSP interfaces, and 2.7V to 5.5V supply operation. Both devices use identical 14-TSSOP packaging and support the same reference configurations. Pin-level compatibility and register programming should be verified against the respective device datasheets for your specific application.

Q: What are the key differences between these two parts?

A: The primary differences are settling time (AD5648BRUZ-1 at 7µs is faster than DAC8168IAPW at 10µs), operating temperature range (DAC8168IAPW extends to 125°C versus 105°C for AD5648BRUZ-1), INL/DNL linearity specifications (DAC8168IAPW tighter at ±1, ±0.1 LSB), and moisture sensitivity level (AD5648BRUZ-1 lower at MSL 1 unlimited versus MSL 2 one year).

Q: Are there any package or mounting differences?

A: No. Both parts are supplied in 14-TSSOP surface mount packages with identical physical dimensions (0.173" width, 4.40mm). PCB footprints and reflow soldering profiles are compatible.

Q: Which part should I select for high-temperature applications?

A: The DAC8168IAPW supports operation up to 125°C, making it suitable for applications requiring extended temperature range. The AD5648BRUZ-1 is rated to 105°C maximum.

Q: Are both parts RoHS compliant?

A: Yes, both the DAC8168IAPW and AD5648BRUZ-1 are ROHS3 compliant and REACH unaffected.