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DAC7725UBG4 Equivalent & Substitute Parts
Part Overview
The DAC7725UBG4 is a 12-bit digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for data acquisition applications requiring four independent voltage output channels. This component features an R-2R architecture with external reference capability and parallel data interface, operating across industrial temperature ranges from -40°C to 85°C.
The DAC7725UBG4 has been discontinued at DiGi Electronics. Equivalent substitute parts remain available in active production status, making component sourcing feasible for new designs or replacement applications requiring compatible functionality.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Number of D/A Converters | 4 |
| Settling Time | 10µs |
| Output Type | Voltage - Buffered |
| Data Interface | Parallel |
| Reference Type | External |
| Voltage - Supply, Analog | ±14.25V ~ 15.75V |
| Voltage - Supply, Digital | 5V |
| INL/DNL (LSB) | ±1 (Max) |
| Architecture | R-2R |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 28-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitution eligibility for the DAC7725UBG4 is determined by strict equivalence across the following critical parameters:
- 12-bit resolution with 4 independent D/A converters
- 10µs settling time performance
- Buffered voltage output configuration
- Parallel data interface architecture
- External reference input requirement
- Dual supply voltage: ±14.25V ~ 15.75V (analog), 5V (digital)
- ±1 LSB maximum INL/DNL specification
- R-2R converter architecture
- 28-SOIC surface mount package
- Industrial temperature range (-40°C to 85°C)
- ROHS3 compliance and MSL 3 rating
All substitute parts listed maintain identical electrical and mechanical specifications across these parameters, ensuring direct functional compatibility in existing circuit designs.
Parameter Comparison
| Parameter | DAC7725UBG4 | DAC7725UB | DAC7724UB |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Bits | 12 | 12 | 12 |
| Number of D/A Converters | 4 | 4 | 4 |
| Settling Time | 10µs | 10µs | 10µs |
| Output Type | Voltage - Buffered | Voltage - Buffered | Voltage - Buffered |
| Data Interface | Parallel | Parallel | Parallel |
| Reference Type | External | External | External |
| Voltage - Supply, Analog | ±14.25V ~ 15.75V | ±14.25V ~ 15.75V | ±14.25V ~ 15.75V |
| Voltage - Supply, Digital | 5V | 5V | 5V |
| INL/DNL (LSB) | ±1 (Max) | ±1 (Max) | ±1 (Max) |
| Architecture | R-2R | R-2R | R-2R |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Package / Case | 28-SOIC | 28-SOIC | 28-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) |
| Product Status | Discontinued at DiGi Electronics | Active | Active |
| Packaging | Not specified | Tube | Tube |
Engineering Selection Recommendations
DAC7725UB is the manufacturer-recommended direct substitute for the discontinued DAC7725UBG4. Both components share identical electrical specifications and packaging, with DAC7725UB currently in active production status. This part is available in tube packaging with higher inventory levels (1533 pcs), ensuring supply chain continuity.
DAC7724UB serves as a parametric equivalent, maintaining all critical electrical and mechanical specifications required for functional compatibility. This part is also in active production with substantial inventory availability (1286 pcs) and tube packaging.
Both substitute parts carry ROHS3 compliance and MSL 3 ratings, meeting the same environmental and regulatory requirements as the original component. Selection between DAC7725UB and DAC7724UB should be based on availability, lead time, and packaging requirements specific to your procurement process.
Frequently Asked Questions (FAQ)
Q: Can DAC7725UB directly replace DAC7725UBG4 in existing designs?
A: Yes. DAC7725UB maintains identical electrical specifications, pin configuration, and 28-SOIC package dimensions. No circuit modifications are required for direct substitution.
Q: What is the difference between DAC7725UB and DAC7724UB?
A: Both parts are parametric equivalents with identical 12-bit resolution, 4-channel configuration, settling time, supply voltages, and package specifications. Selection depends on availability and procurement preferences.
Q: Are the substitute parts available in the same packaging as the original?
A: DAC7725UBG4 packaging was not specified in the original documentation. Both substitute parts (DAC7725UB and DAC7724UB) are supplied in tube packaging, which is standard for this component category.
Q: Do the substitute parts meet the same compliance standards?
A: Yes. Both DAC7725UB and DAC7724UB are ROHS3 compliant with MSL 3 (168 Hours) rating, matching the original component's environmental and regulatory certifications.
Q: What is the current product status of these substitutes?
A: Both DAC7725UB and DAC7724UB are in active production status, ensuring long-term availability and supply chain stability compared to the discontinued DAC7725UBG4.
Q: Are there any differences in operating temperature range?
A: No. All three parts operate across the identical industrial temperature range of -40°C to 85°C.
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