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MAX5253ACAP Equivalent & Substitute Parts
Part Overview
The MAX5253ACAP is a 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring four independent voltage output channels. This component features an R-2R architecture with SPI interface and external reference capability, operating across 3V to 3.6V supply rails.
The MAX5253ACAP is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support long-term product availability for applications currently utilizing this component.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Number of Bits | 12 |
| Number of D/A Converters | 4 |
| Settling Time (Typical) | 16µs |
| Output Type | Voltage - Buffered |
| Data Interface | SPI |
| Reference Type | External |
| Voltage - Supply, Analog | 3V ~ 3.6V |
| Voltage - Supply, Digital | 3V ~ 3.6V |
| INL/DNL (LSB) | ±0.25, ±1 (Max) |
| Architecture | R-2R |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 20-SSOP (0.209", 5.30mm Width) |
| Mounting Type | Surface Mount |
Substitute Part Grouping Explanation
Substitution eligibility for the MAX5253ACAP is determined by strict equivalence across the following critical parameters:
- Resolution: 12 bits
- Channel Count: 4 independent D/A converters
- Output Configuration: Voltage output with buffering
- Interface Protocol: SPI serial communication
- Reference Input: External reference requirement
- Supply Voltage Range: 3V to 3.6V (both analog and digital rails)
- Linearity Performance: INL/DNL specifications of ±0.25 LSB and ±1 LSB maximum
- Package Form Factor: 20-SSOP surface mount package
- Thermal Operating Range: 0°C to 70°C
The MAX5253ACAP+ qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility across all parameters listed above.
Parameter Comparison
| Parameter | MAX5253ACAP (Obsolete) | MAX5253ACAP+ (Active) |
|---|---|---|
| Number of Bits | 12 | 12 |
| Number of D/A Converters | 4 | 4 |
| Settling Time (Typical) | 16µs | 16µs |
| Output Type | Voltage - Buffered | Voltage - Buffered |
| Data Interface | SPI | SPI |
| Reference Type | External | External |
| Voltage - Supply, Analog | 3V ~ 3.6V | 3V ~ 3.6V |
| Voltage - Supply, Digital | 3V ~ 3.6V | 3V ~ 3.6V |
| INL/DNL (LSB) | ±0.25, ±1 (Max) | ±0.25, ±1 (Max) |
| Architecture | R-2R | R-2R |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
| Package / Case | 20-SSOP (0.209", 5.30mm Width) | 20-SSOP (0.209", 5.30mm Width) |
| Mounting Type | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
Engineering Selection Recommendations
The MAX5253ACAP+ is the direct functional equivalent of the MAX5253ACAP. Both components share identical electrical performance specifications and mechanical packaging, ensuring pin-for-pin and functional compatibility.
The primary distinction between these parts is product lifecycle status and regulatory compliance. The MAX5253ACAP is obsolete, while the MAX5253ACAP+ maintains active production status. Additionally, the MAX5253ACAP+ achieves ROHS3 compliance, whereas the original MAX5253ACAP does not meet current RoHS requirements.
For new designs or component replenishment, the MAX5253ACAP+ is the appropriate selection. For legacy system maintenance requiring exact historical equivalence, the MAX5253ACAP remains functionally interchangeable where supply permits.
Frequently Asked Questions (FAQ)
Q: Can MAX5253ACAP+ replace MAX5253ACAP in existing designs?
A: Yes. The MAX5253ACAP+ is electrically and mechanically identical to the MAX5253ACAP. All electrical parameters, pin assignments, and package dimensions are equivalent. Direct substitution is supported without circuit modification.
Q: What is the difference between MAX5253ACAP and MAX5253ACAP+?
A: The components are functionally identical. The primary differences are product status (obsolete versus active) and regulatory compliance (RoHS non-compliant versus ROHS3 compliant). The "+" designation indicates the active production variant.
Q: Are there packaging differences between these parts?
A: No. Both parts use the 20-SSOP surface mount package with identical dimensions (0.209" width, 5.30mm). Mounting and PCB layout requirements are identical.
Q: Does the MAX5253ACAP+ meet current environmental standards?
A: The MAX5253ACAP+ is ROHS3 compliant and REACH unaffected. The original MAX5253ACAP does not meet RoHS requirements.
Q: What supply voltage range do these components support?
A: Both parts operate with analog and digital supply voltages ranging from 3V to 3.6V. Separate supply pins allow independent regulation of analog and digital rails.
Q: Is the SPI interface identical between these parts?
A: Yes. Both components use identical SPI serial communication protocol and timing specifications for digital control and data transfer.
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