DAC7614P Equivalent & Substitute Parts

Part Overview

The DAC7614P is a 12-bit digital-to-analog converter (DAC) with 4 independent channels, manufactured by Texas Instruments in a 16-DIP through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and production continuity. The DAC7614P provides voltage-buffered output with SPI data interface and external reference capability, suitable for precision analog signal generation applications requiring ±5V analog and 5V digital supply.

Substiute Parts

DAC7614P

Texas InstrumentsIn Stock: 2941DAC7614P Datasheet

Current PartRFQ

DAC7614U

Texas InstrumentsIn Stock: 8530DAC7614U Datasheet

MFR RecommendedRFQ

DAC8420FPZ

Analog Devices Inc.In Stock: 3666DAC8420FPZ Datasheet

DirectRFQ

DAC8420EPZ

Analog Devices Inc.In Stock: 1196DAC8420EPZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DAC7614P is determined by strict equivalence across the following critical parameters:

• Resolution & Channel Count: 12-bit resolution with 4 independent DAC channels
• Output Configuration: Voltage-buffered output with SPI serial interface
• Supply Voltage Compatibility: Analog supply of ±5V and digital supply of 5V
• Linearity Performance: INL/DNL specifications within acceptable tolerance
• Architecture: R-2R resistor ladder topology
• Temperature Range: -40°C to 85°C operating window
• Package Compatibility: 16-DIP through-hole form factor for direct PCB replacement

Substitute parts are grouped into two categories based on product status and packaging:

1. Texas Instruments DAC7614U: Same base product (DAC7614) in active production status with surface-mount SOIC packaging
2. Analog Devices DAC8420 Series: Alternative manufacturer parts (DAC8420FPZ, DAC8420EPZ) with enhanced specifications in 16-DIP through-hole packaging

Parameter Comparison

Engineering Selection Recommendations

For Direct Through-Hole Replacement (Same Package)

The DAC8420EPZ and DAC8420FPZ from Analog Devices are pin-compatible 16-DIP alternatives with active product status. Both parts maintain the same package footprint, mounting type, and core functionality as the DAC7614P. The DAC8420EPZ offers superior linearity performance (INL/DNL: ±0.5, ±0.25 LSB) compared to the DAC7614P (±2, ±1 LSB). The DAC8420FPZ provides standard linearity (INL/DNL: ±1, ±0.25 LSB). Both support extended analog supply voltage ranges (5V ~ 15V, -15V) while maintaining 5V digital supply compatibility. All three parts are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

For Surface-Mount Redesign

The DAC7614U represents the active production equivalent from Texas Instruments, available in 16-SOIC surface-mount packaging. This part maintains identical electrical specifications to the DAC7614P (12-bit, 4-channel, 10µs settling time, ±2/±1 LSB linearity) with the same ±5V analog and 5V digital supply requirements. The DAC7614U is suitable for new PCB designs requiring surface-mount technology, with active product status ensuring long-term availability.

Frequently Asked Questions (FAQ)

Q: Can DAC8420FPZ or DAC8420EPZ directly replace DAC7614P in existing through-hole designs?

A: Yes. Both DAC8420 variants are pin-compatible 16-DIP packages with identical footprints to the DAC7614P. No PCB modifications are required. The extended analog supply voltage range (5V ~ 15V, -15V) of the DAC8420 series provides additional design flexibility while remaining backward compatible with ±5V supply circuits.

Q: What is the key difference between DAC8420FPZ and DAC8420EPZ?

A: Both parts are identical in package, pinout, and core functionality. The primary difference is linearity specification: DAC8420EPZ offers tighter INL/DNL tolerance (±0.5, ±0.25 LSB) compared to DAC8420FPZ (±1, ±0.25 LSB). Selection depends on application precision requirements.

Q: Why is DAC7614U not recommended as a direct replacement despite being from Texas Instruments?

A: The DAC7614U uses 16-SOIC surface-mount packaging, which is incompatible with through-hole PCB designs. It requires PCB redesign and reflow soldering equipment. For existing through-hole applications, DAC8420FPZ or DAC8420EPZ are appropriate alternatives.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. DAC7614P, DAC7614U, DAC8420FPZ, and DAC8420EPZ are all ROHS3 compliant with REACH unaffected status.

Q: What is the settling time difference between DAC7614P and DAC8420 series?

A: DAC7614P settles in 10µs, while DAC8420 series settles in 13µs (typical). This 3µs difference is negligible for most applications but should be verified for time-critical signal generation requirements.

Q: Can DAC7614U be used in new designs despite surface-mount packaging?

A: Yes. DAC7614U is in active production status with identical electrical specifications to DAC7614P. It is suitable for new designs using surface-mount assembly processes and provides long-term supply continuity.