DAC5662IPFBR Equivalent & Substitute Parts

Part Overview

The DAC5662IPFBR is a 12-bit digital-to-analog converter manufactured by Texas Instruments, designed for data acquisition applications requiring dual-channel current output conversion. This active product features parallel data interface capability with both external and internal reference options, operating across 3V to 3.6V supply rails. The device is housed in a 48-pin TQFP package (7x7mm) and is ROHS3 compliant with MSL 2 rating.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges for this product category.

Substiute Parts

DAC5662IPFBR

Texas InstrumentsIn Stock: 2115DAC5662IPFBR Datasheet

Current PartRFQ

AD9765ASTZRL

Analog Devices Inc.In Stock: 1970AD9765ASTZRL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DAC5662IPFBR is determined by the following critical parameters:

• Resolution: 12-bit conversion capability
• Channel Count: Dual D/A converters (2 channels)
• Output Architecture: Current source, unbuffered configuration
• Differential Output Capability: Required
• Data Interface: Parallel input protocol
• Reference Configuration: Support for both external and internal references
• Supply Voltage Compatibility: Analog and digital supply ranges must overlap with or exceed 3V ~ 3.6V
• Temperature Range: -40°C to 85°C operating window
• Package Footprint: 48-pin TQFP (7x7mm) or mechanically compatible alternative
• Compliance: ROHS3 compliance required

The AD9765ASTZRL qualifies as a substitute based on matching resolution, channel count, output type, differential capability, parallel interface, reference flexibility, temperature range, and compliance status. Package variation (48-LQFP vs. 48-TQFP) represents a mechanical difference requiring PCB layout adjustment but maintains electrical compatibility within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

Both the DAC5662IPFBR and AD9765ASTZRL maintain active product status with ROHS3 compliance and REACH unaffected designation, qualifying them for equivalent application use within the specified parameter boundaries.

The DAC5662IPFBR offers faster settling time (20ns typical) and tighter INL/DNL specifications (0.3, 0.2 LSB), making it the preferred selection for applications requiring maximum conversion speed and linearity performance.

The AD9765ASTZRL provides extended supply voltage flexibility (3V ~ 5.5V analog, 2.7V ~ 5.5V digital) and represents a viable alternative when supply rail flexibility is required. The package transition from 48-TQFP to 48-LQFP requires PCB layout modification but maintains identical pin count and 7x7mm footprint dimensions.

Selection between these devices should be based on specific application requirements for settling time performance, linearity tolerance, supply voltage constraints, and PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the AD9765ASTZRL directly replace the DAC5662IPFBR without PCB modification?

A: Electrical substitution is valid; however, package geometry differs (LQFP vs. TQFP). Both maintain 48-pin count and 7x7mm dimensions, but lead pitch and solder pad geometry require PCB layout adjustment. Direct socket replacement is not possible.

Q: What are the key electrical differences between these devices?

A: The DAC5662IPFBR provides faster settling time (20ns vs. 35ns) and superior linearity (0.3/0.2 LSB vs. ±0.4/±0.3 LSB). The AD9765ASTZRL offers broader supply voltage ranges. Both devices maintain identical resolution, channel count, output architecture, and reference flexibility.

Q: Are both devices suitable for the same temperature operating range?

A: Yes. Both devices operate across -40°C to 85°C, meeting identical temperature specifications.

Q: What is the impact of different MSL ratings?

A: The DAC5662IPFBR carries MSL 2 (1 Year shelf life), while the AD9765ASTZRL carries MSL 3 (168 Hours shelf life). MSL rating affects moisture sensitivity during storage and handling. Lower MSL values indicate greater moisture tolerance.

Q: Can supply voltage differences affect substitution feasibility?

A: The DAC5662IPFBR requires 3V ~ 3.6V for both analog and digital supplies. The AD9765ASTZRL accepts 3V ~ 5.5V analog and 2.7V ~ 5.5V digital. Substitution is valid only when the application supply voltages fall within both device specifications (3V ~ 3.6V range).

Q: Are both devices RoHS compliant?

A: Yes. Both the DAC5662IPFBR and AD9765ASTZRL are ROHS3 compliant and REACH unaffected.