DAC7664YBR Equivalent & Substitute Parts

Part Overview

The DAC7664YBR is a 16-bit digital-to-analog converter manufactured by Texas Instruments, designed for data acquisition applications requiring four independent voltage output channels. The device features an internal reference, parallel data interface, and R-2R architecture with ±2/±1 LSB INL/DNL specifications. The DAC7664YBR is classified as obsolete, making identification of active equivalent parts essential for new designs and production continuity.

Substiute Parts

DAC7664YBR
Texas InstrumentsIn Stock: 1109DAC7664YBR Datasheet
DAC7664YBR
Current Part
DAC7664YBT
Texas InstrumentsIn Stock: 864DAC7664YBT Datasheet
DAC7664YBT
Parametric Equivalent

Key Parameters

Parameter Value
Manufacturer Part Number DAC7664YBR
Manufacturer Texas Instruments
Number of Bits 16
Number of D/A Converters 4
Output Type Voltage - Buffered
Settling Time 15µs
Data Interface Parallel
Reference Type Internal
Voltage - Supply, Analog ±5V
Voltage - Supply, Digital 5V
INL/DNL (LSB) ±2, ±1
Architecture R-2R
Operating Temperature -40°C ~ 85°C
Package / Case 64-LQFP
Mounting Type Surface Mount
Product Status Obsolete
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the DAC7664YBR is determined by strict equivalence across the following critical parameters:

  • Resolution: 16-bit
  • Channel Count: 4 independent D/A converters
  • Output Configuration: Voltage output with buffering
  • Settling Time: 15µs maximum
  • Data Interface: Parallel
  • Reference: Internal
  • Supply Voltages: ±5V analog, 5V digital
  • Linearity: ±2 LSB INL, ±1 LSB DNL
  • Package: 64-LQFP (10x10mm)
  • Temperature Range: -40°C to 85°C

The DAC7664YBT meets all these parameters and is classified as an active product, making it a direct parametric equivalent suitable for replacing the obsolete DAC7664YBR.

Parameter Comparison

Parameter DAC7664YBR (Main) DAC7664YBT (Substitute)
Manufacturer Texas Instruments Texas Instruments
Number of Bits 16 16
Number of D/A Converters 4 4
Output Type Voltage - Buffered Voltage - Buffered
Settling Time 15µs 15µs
Data Interface Parallel Parallel
Reference Type Internal Internal
Voltage - Supply, Analog ±5V ±5V
Voltage - Supply, Digital 5V 5V
INL/DNL (LSB) ±2, ±1 ±2, ±1
Architecture R-2R R-2R
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C
Package / Case 64-LQFP 64-LQFP
Mounting Type Surface Mount Surface Mount
Product Status Obsolete Active
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours) 3 (168 Hours)
Packaging Type Tube Tape & Reel (TR)

Engineering Selection Recommendations

The DAC7664YBT is the direct parametric equivalent for the obsolete DAC7664YBR. Both devices are manufactured by Texas Instruments and share identical electrical specifications, pin configurations, and package dimensions. The primary distinction is product status: the DAC7664YBR is obsolete while the DAC7664YBT is active and currently in production.

Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring compatibility with modern manufacturing and environmental standards. The DAC7664YBT is available in Tape & Reel packaging, which is standard for production environments, whereas the DAC7664YBR was supplied in tube packaging.

For new designs or production continuity, the DAC7664YBT is the appropriate selection due to its active status and guaranteed availability.

Frequently Asked Questions (FAQ)

Q: Can the DAC7664YBT directly replace the DAC7664YBR in existing designs?

A: Yes. The DAC7664YBT is a direct parametric equivalent with identical electrical characteristics, pin assignments, and package dimensions. No circuit modifications are required.

Q: What is the difference between the DAC7664YBR and DAC7664YBT?

A: The devices are electrically and functionally identical. The primary difference is product status: DAC7664YBR is obsolete, while DAC7664YBT is active. Additionally, packaging differs—DAC7664YBR uses tube packaging while DAC7664YBT uses Tape & Reel format.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical RoHS3 compliance status and Moisture Sensitivity Level (MSL) ratings of 3 (168 Hours).

Q: What supply voltages are required for operation?

A: The device requires ±5V for analog supply and 5V for digital supply. Both the DAC7664YBR and DAC7664YBT operate within the -40°C to 85°C temperature range.

Q: Is the 64-LQFP package identical between both parts?

A: Yes. Both parts use the 64-LQFP (10x10mm) package with identical pin configurations and mechanical dimensions.

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