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MAX307CPI Equivalent & Substitute Parts
Part Overview
The MAX307CPI is a dual 8:1 analog multiplexer/demultiplexer IC manufactured by Analog Devices Inc./Maxim Integrated. This component features two independent 8:1 switch circuits with 100Ohm on-state resistance, designed for signal routing and switching applications in analog systems. The MAX307CPI is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Multiplexer/Demultiplexer Circuit Configuration | 8:1 |
| Number of Circuits | 2 |
| On-State Resistance (Max) | 100Ohm |
| Channel-to-Channel Matching (ΔRon) | 1.5Ohm |
| Voltage - Supply, Single (V+) | 5V ~ 30V |
| Voltage - Supply, Dual (V±) | ±4.5V ~ 20V |
| Switch Time (Ton, Toff) (Max) | 200ns, 150ns |
| Charge Injection | 2pC |
| Channel Capacitance (CS(off), CD(off)) | 8pF, 65pF |
| Current - Leakage (IS(off)) (Max) | 500pA |
| Crosstalk | -92dB @ 100kHz |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Package / Case | 28-DIP (0.600", 15.24mm) |
| Mounting Type | Through Hole |
Substitute Part Grouping Explanation
Substitution of the MAX307CPI is determined by strict equivalence across the following critical parameters:
- Multiplexer configuration: 8:1 dual circuit topology
- On-state resistance: 100Ohm maximum
- Channel-to-channel matching: 1.5Ohm maximum
- Supply voltage ranges: Single supply 5V ~ 30V and dual supply ±4.5V ~ 20V
- Switching performance: 200ns turn-on, 150ns turn-off maximum
- Charge injection: 2pC
- Channel capacitance specifications: 8pF and 65pF
- Leakage current: 500pA maximum
- Crosstalk performance: -92dB @ 100kHz
- Package: 28-DIP through-hole configuration
The MAX307CPI+ meets all these parameters and serves as the direct active equivalent.
Parameter Comparison
| Parameter | MAX307CPI | MAX307CPI+ |
|---|---|---|
| Multiplexer/Demultiplexer Circuit | 8:1 | 8:1 |
| Number of Circuits | 2 | 2 |
| On-State Resistance (Max) | 100Ohm | 100Ohm |
| Channel-to-Channel Matching (ΔRon) | 1.5Ohm | 1.5Ohm |
| Voltage - Supply, Single (V+) | 5V ~ 30V | 5V ~ 30V |
| Voltage - Supply, Dual (V±) | ±4.5V ~ 20V | ±4.5V ~ 20V |
| Switch Time (Ton, Toff) (Max) | 200ns, 150ns | 200ns, 150ns |
| Charge Injection | 2pC | 2pC |
| Channel Capacitance (CS(off), CD(off)) | 8pF, 65pF | 8pF, 65pF |
| Current - Leakage (IS(off)) (Max) | 500pA | 500pA |
| Crosstalk | -92dB @ 100kHz | -92dB @ 100kHz |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Package / Case | 28-DIP (0.600", 15.24mm) | 28-DIP (0.600", 15.24mm) |
| Mounting Type | Through Hole | Through Hole |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
Engineering Selection Recommendations
The MAX307CPI+ is the direct functional equivalent of the MAX307CPI. Both parts maintain identical electrical and mechanical specifications across all critical parameters. The primary distinction is product lifecycle status: the MAX307CPI is obsolete, while the MAX307CPI+ is active.
For new designs and production applications, the MAX307CPI+ is the appropriate selection. This part offers the same performance characteristics while providing active manufacturer support and availability. Additionally, the MAX307CPI+ carries ROHS3 compliance, meeting current environmental and regulatory requirements, whereas the original MAX307CPI does not.
Both parts are supplied in 28-DIP through-hole packaging and are pin-compatible, allowing direct substitution in existing PCB layouts without design modification.
Frequently Asked Questions (FAQ)
Q: Can MAX307CPI+ directly replace MAX307CPI in existing designs?
A: Yes. The MAX307CPI+ is electrically and mechanically identical to the MAX307CPI. Pin configuration, package dimensions, and all electrical parameters are equivalent. Direct substitution is possible without circuit redesign.
Q: What is the primary reason to switch from MAX307CPI to MAX307CPI+?
A: The MAX307CPI is obsolete and no longer manufactured. The MAX307CPI+ is the active equivalent part from the same manufacturer, ensuring continued availability and support for production and new designs.
Q: Are there packaging differences between these parts?
A: Both parts use 28-DIP (0.600", 15.24mm) through-hole packaging. The MAX307CPI+ is supplied in tube packaging, while the original MAX307CPI packaging specification was not provided. The physical package dimensions and pin layout are identical.
Q: Does the MAX307CPI+ meet current compliance standards?
A: Yes. The MAX307CPI+ is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The original MAX307CPI is RoHS non-compliant.
Q: Are the electrical performance characteristics identical?
A: Yes. Both parts maintain identical specifications for on-state resistance (100Ohm), switching time (200ns/150ns), charge injection (2pC), leakage current (500pA), crosstalk (-92dB @ 100kHz), and all other electrical parameters.
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