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MCP4902T-E/SL Equivalent & Substitute Parts
Part Overview
The MCP4902T-E/SL is an 8-bit digital-to-analog converter (DAC) manufactured by Microchip Technology, designed for data acquisition applications requiring dual voltage output channels. This device features SPI interface compatibility, external reference capability, and operates across a wide supply voltage range of 2.7V to 5.5V for both analog and digital supplies. The component is currently in active production status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when packaging or supplier inventory requirements necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Number of Bits | 8 |
| Number of D/A Converters | 2 |
| Settling Time (Typical) | 4.5µs |
| Output Type | Voltage - Buffered |
| Data Interface | SPI |
| Reference Type | External |
| Voltage - Supply, Analog | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V |
| INL/DNL (LSB) | ±0.25, ±0.2 |
| Architecture | String DAC |
| Operating Temperature | -40°C ~ 125°C |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the MCP4902T-E/SL is determined by strict equivalence across all electrical and mechanical parameters. The primary differentiator between the main part and identified substitutes is packaging format and supplier inventory classification. Both the main part (MCP4902T-E/SL) and the substitute part (MCP4902-E/SL) share identical core specifications:
- Resolution: 8-bit dual-channel DAC
- Interface Protocol: SPI serial communication
- Supply Voltage Range: 2.7V to 5.5V (analog and digital)
- Settling Time: 4.5µs typical
- Linearity Performance: ±0.25 LSB INL, ±0.2 LSB DNL
- Package Type: 14-SOIC surface mount
- Temperature Range: -40°C to 125°C
- Compliance: ROHS3 and REACH unaffected
The substitute part differs only in packaging format (Tube versus Tape & Reel) and inventory source, with no variation in electrical performance, pin configuration, or functional capability.
Parameter Comparison
| Parameter | MCP4902T-E/SL (Main) | MCP4902-E/SL (Substitute) |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Number of Bits | 8 | 8 |
| Number of D/A Converters | 2 | 2 |
| Settling Time (Typical) | 4.5µs | 4.5µs |
| Output Type | Voltage - Buffered | Voltage - Buffered |
| Data Interface | SPI | SPI |
| 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) | ±0.25, ±0.2 | ±0.25, ±0.2 |
| Architecture | String DAC | String DAC |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active |
| Packaging Format | Tape & Reel (TR) | Tube |
Engineering Selection Recommendations
Selection between MCP4902T-E/SL and MCP4902-E/SL is based on packaging and procurement requirements rather than electrical performance differentiation. Both parts maintain active production status with identical compliance certifications (ROHS3 Compliant, REACH Unaffected). The MCP4902T-E/SL in Tape & Reel format is suitable for high-volume automated assembly operations. The MCP4902-E/SL in Tube packaging accommodates lower-volume applications or manual assembly workflows. Inventory availability and supply chain logistics may influence part selection, as both variants are manufactured by Microchip Technology with equivalent electrical specifications and reliability characteristics.
Frequently Asked Questions (FAQ)
Q: Are MCP4902T-E/SL and MCP4902-E/SL electrically identical?
A: Yes. Both parts are 8-bit dual-channel DACs with identical electrical specifications, including 4.5µs settling time, SPI interface, 2.7V to 5.5V supply range, and ±0.25/±0.2 LSB linearity performance. The only difference is packaging format.
Q: What is the difference between Tape & Reel and Tube packaging?
A: Tape & Reel (TR) packaging is designed for automated pick-and-place assembly equipment and high-volume production. Tube packaging is used for manual assembly, lower-volume applications, or component distribution. Both formats contain the same 14-SOIC surface mount device.
Q: Can I use MCP4902-E/SL as a direct replacement for MCP4902T-E/SL?
A: Yes, provided your assembly process accommodates Tube packaging. The electrical performance, pin configuration, and functional operation are identical. Verify that your manufacturing equipment can handle the alternative packaging format.
Q: Are both parts RoHS3 compliant?
A: Yes. Both MCP4902T-E/SL and MCP4902-E/SL are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited) and REACH Unaffected status.
Q: What is the operating temperature range for these parts?
A: Both parts operate across -40°C to 125°C, suitable for industrial and extended temperature applications.
Q: Do these parts require an external reference voltage?
A: Yes. Both MCP4902T-E/SL and MCP4902-E/SL require an external reference voltage source for DAC operation.
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