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MAX505AENG Equivalent & Substitute Parts
Part Overview
The MAX505AENG is an 8-bit digital-to-analog converter (DAC) with four independent conversion channels, designed for parallel data interface applications requiring external voltage references. This component features buffered voltage output and operates with dual supply voltages (±5V analog, 5V digital). The MAX505AENG is classified as obsolete, making identification of compatible substitute parts essential for system redesign, legacy system maintenance, and procurement planning.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | MAX505AENG |
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Category | Data Acquisition |
| Number of Bits | 8 |
| Number of D/A Converters | 4 |
| Settling Time | 6µs (Typ) |
| Output Type | Voltage - Buffered |
| Data Interface | Parallel |
| Reference Type | External |
| Voltage - Supply, Analog | ±5V |
| Voltage - Supply, Digital | 5V |
| INL/DNL (LSB) | ±1 (Max) |
| Architecture | R-2R |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 24-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the MAX505AENG is determined by strict equivalence across the following critical parameters:
- Resolution and Channel Count: 8-bit resolution with 4 independent D/A converters
- Output Characteristics: Buffered voltage output with external reference capability
- Interface Protocol: Parallel data interface
- Supply Voltage Requirements: ±5V analog supply and 5V digital supply
- Electrical Performance: 6µs settling time (typical), ±1 LSB INL/DNL specification
- Package Compatibility: 24-DIP through-hole package (0.300", 7.62mm pitch)
- Temperature Range: -40°C to 85°C operating specification
The MAX505BENG+ meets all these criteria and is identified as a parametric equivalent. Both parts share identical functional specifications, electrical performance, and physical packaging, with the primary distinction being compliance certification status and packaging format.
Parameter Comparison
| Parameter | MAX505AENG | MAX505BENG+ |
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Number of Bits | 8 | 8 |
| Number of D/A Converters | 4 | 4 |
| Settling Time | 6µs (Typ) | 6µs (Typ) |
| Output Type | Voltage - Buffered | Voltage - Buffered |
| Data Interface | Parallel | Parallel |
| Reference Type | External | External |
| Voltage - Supply, Analog | ±5V | ±5V |
| Voltage - Supply, Digital | 5V | 5V |
| INL/DNL (LSB) | ±1 (Max) | ±1 (Max) |
| Architecture | R-2R | R-2R |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Package / Case | 24-DIP (0.300", 7.62mm) | 24-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole | Through Hole |
| Product Status | Obsolete | Obsolete |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
Engineering Selection Recommendations
The MAX505BENG+ serves as a direct parametric equivalent to the MAX505AENG. Both components are classified as obsolete products, indicating that neither part is in active production. The MAX505BENG+ offers improved compliance status, meeting ROHS3 requirements, whereas the MAX505AENG does not comply with RoHS directives.
For new designs or system redesigns, the MAX505BENG+ is the appropriate selection due to its RoHS3 compliance certification. For legacy system maintenance where original specifications must be preserved, the MAX505AENG remains functionally equivalent if procurement is possible.
Both parts maintain identical electrical performance specifications, package geometry, and thermal operating range. Substitution between these parts requires no circuit modifications or design alterations.
Frequently Asked Questions (FAQ)
Q: Can MAX505BENG+ be used as a direct replacement for MAX505AENG in existing designs?
A: Yes. The MAX505BENG+ is a parametric equivalent with identical electrical specifications, settling time, resolution, channel count, and 24-DIP package configuration. No circuit modifications are required for substitution.
Q: What is the significance of the RoHS3 compliance difference?
A: The MAX505BENG+ meets ROHS3 compliance standards, restricting hazardous substances in electronic components. The MAX505AENG does not meet these standards. For applications subject to RoHS regulations or environmental compliance requirements, the MAX505BENG+ is the appropriate selection.
Q: Are there any differences in pin configuration between these parts?
A: No. Both the MAX505AENG and MAX505BENG+ use identical 24-DIP through-hole packaging with 0.300" (7.62mm) pitch. Pin assignments and functional pinout are identical.
Q: What supply voltages are required for operation?
A: Both parts require ±5V for analog supply and 5V for digital supply. Ensure your power distribution network provides these dual voltage rails with appropriate filtering and regulation.
Q: Can these parts be used in applications requiring external voltage references?
A: Yes. Both the MAX505AENG and MAX505BENG+ feature external reference capability, allowing system designers to implement custom reference voltage schemes for enhanced accuracy or application-specific requirements.
Q: What is the operating temperature range for these components?
A: Both parts operate across -40°C to 85°C. Verify that your thermal management and operating environment remain within this specification.
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