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DAC8574IPWG4 Equivalent & Substitute Parts
Part Overview
The DAC8574IPWG4 is a 16-bit digital-to-analog converter (DAC) featuring four independent D/A conversion channels with buffered voltage output. This component is designed for data acquisition applications requiring precision analog signal generation from digital inputs. The device operates across a wide supply voltage range of 2.7V to 5.5V for both analog and digital supplies, making it suitable for mixed-signal system integration.
The DAC8574IPWG4 is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure project timelines are not compromised due to component unavailability.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resolution | 16 Bit |
| Number of D/A Converters | 4 |
| Output Type | Voltage - Buffered |
| Data Interface | I2C |
| Settling Time | 10µs |
| Reference Type | External |
| Voltage - Supply, Analog | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V |
| INL/DNL (LSB) | ±1 (Max) |
| Operating Temperature | -40°C ~ 105°C |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution of the DAC8574IPWG4 is determined by strict equivalence across the following critical parameters:
- 16-bit resolution with 4 independent D/A converter channels
- Buffered voltage output configuration
- I2C digital interface protocol
- 10µs settling time specification
- External reference input requirement
- Dual supply voltage range: 2.7V to 5.5V (analog and digital)
- ±1 LSB maximum INL/DNL linearity specification
- 16-TSSOP surface mount package footprint
- Operating temperature range of -40°C to 105°C
- ROHS3 compliance and equivalent regulatory certifications
The DAC8574IPW is identified as a manufacturer-recommended substitute. Both parts share identical electrical specifications, functional architecture, and package geometry. The primary distinction is packaging format: the DAC8574IPWG4 uses individual packaging, while the DAC8574IPW is supplied in tube packaging.
Parameter Comparison
| Parameter | DAC8574IPWG4 | DAC8574IPW |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Resolution | 16 Bit | 16 Bit |
| Number of D/A Converters | 4 | 4 |
| Output Type | Voltage - Buffered | Voltage - Buffered |
| Data Interface | I2C | I2C |
| Settling Time | 10µs | 10µs |
| Reference Type | External | External |
| Voltage - Supply, Analog | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| INL/DNL (LSB) | ±1 (Max) | ±1 (Max) |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
| Package / Case | 16-TSSOP | 16-TSSOP |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Discontinued at DiGi Electronics | Active |
| Packaging Format | Individual | Tube |
Engineering Selection Recommendations
The DAC8574IPW is a direct functional equivalent to the DAC8574IPWG4 and is the manufacturer-recommended substitute. Both components are manufactured by Texas Instruments and maintain identical electrical performance specifications, pin configuration, and package footprint.
The DAC8574IPW holds active product status, ensuring ongoing availability and manufacturer support. Both parts maintain ROHS3 compliance and equivalent regulatory certifications (REACH Unaffected, EAR99 ECCN classification).
The substitution is valid for all applications where the DAC8574IPWG4 was originally specified. No circuit modifications or design changes are required. The difference in packaging format (tube versus individual) affects only procurement and handling procedures, not functional performance or board-level integration.
Frequently Asked Questions (FAQ)
Q: Can the DAC8574IPW be used as a direct replacement for the DAC8574IPWG4?
A: Yes. Both parts are electrically and functionally identical. They share the same 16-bit resolution, 4-channel architecture, I2C interface, settling time, supply voltage range, and 16-TSSOP package footprint. No circuit redesign is necessary.
Q: What is the difference between DAC8574IPWG4 and DAC8574IPW?
A: The primary difference is packaging format. The DAC8574IPWG4 uses individual packaging, while the DAC8574IPW is supplied in tube packaging. This affects only procurement and component handling, not electrical performance or PCB integration.
Q: Are there any compatibility concerns when substituting these parts?
A: No compatibility concerns exist. Both parts operate across identical supply voltage ranges (2.7V to 5.5V), maintain the same operating temperature range (-40°C to 105°C), and provide equivalent linearity specifications (±1 LSB INL/DNL). Pin configuration and package geometry are identical.
Q: Does the DAC8574IPW meet the same compliance standards?
A: Yes. The DAC8574IPW maintains ROHS3 compliance, REACH Unaffected status, and EAR99 ECCN classification, matching the regulatory profile of the DAC8574IPWG4.
Q: Why is the DAC8574IPWG4 discontinued?
A: The DAC8574IPWG4 is discontinued at DiGi Electronics. The DAC8574IPW remains in active production and is the recommended alternative for continued design support and component availability.
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