MAX314CPE+ - Quad SPST Analog Switch | Analog Devices
MPN: MAX314CPE+ ✓ ActiveMAX314CPE+ Overview
An analog switch is a solid-state semiconductor device that connects or isolates circuit paths under electrical control. Unlike a mechanical relay, it operates without moving contacts, enabling fast switching and compact integration. The MAX314CPE+ belongs to the CMOS analog-switch hierarchy and provides four SPST channels in a through-hole package for applications that require signal routing rather than continuous power conversion.
The device has a maximum on-resistance of 10 ohms and on-resistance matching between channels of 1.5 ohms. Its low leakage of 2.5 nA at +85°C helps preserve signal integrity in high-impedance circuits. Bidirectional conduction expands routing flexibility, while low power consumption supports both portable and fixed equipment. ESD tolerance greater than 2000 V per Method 3015.7 adds handling protection during assembly.
Each of the four switch channels provides a separate control path, allowing a system to isolate a sensor, select a measurement route, or disconnect an external interface. The parallel CMOS structure avoids mechanical contact delay or wear, while the specified resistance matching helps limit channel-dependent gain and attenuation errors when multiple inputs are routed through the device.
Typical uses include analog signal multiplexing in test and measurement equipment, channel isolation in data-acquisition systems, switching between sensors and amplifiers, and routing control signals in industrial control boards. The 16-pin PDIP package is particularly useful for prototypes, through-hole assemblies, and designs where a socketed or manually solderable package simplifies maintenance.
When laying out the circuit, place each switched node close to its source and destination where practical, and avoid sharing long copper paths between sensitive channels. Confirm signal amplitude, leakage requirements, control logic levels, and switching transients against the manufacturer data sheet. The MAX314CPE+ is especially appropriate when four separately controlled, bidirectional, normally open analog paths are needed in a conventional through-hole design.
This product page combines the manufacturer specifications, sourcing details, pin-package information, and practical selection guidance. It also identifies same-family alternatives while distinguishing verified drop-in choices from options that require a footprint or interface review before substitution.
Drop-in alternatives for MAX314CPE+ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
MAX314CPE
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MAX314EPE+
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MAX313CPE+
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MAX312CPE+
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MAX314CPE+ Maximum Ratings & Electrical Characteristics
| Number of Switches | 4 circuits |
| Number of Channels | 4 channels |
| Switch Configuration | 4 x SPST |
| Signal-to-Noise Ratio | 1:1 |
| On-Resistance | 10 ohms maximum |
| On-Resistance Matching Between Channels | 1.5 ohms |
| Off Leakage Current | 2.5 nA at +85°C |
| ESD Tolerance | Greater than 2000 V per Method 3015.7 |
| Technology | CMOS |
| Signal Direction | Bidirectional |
| Package | 16-pin PDIP |
| Mounting Type | Through-hole |
| Surface Mount | No |
| Package Shape | Rectangular |
| Temperature Grade | Commercial |
| Production Status | Production |
MAX314CPE+ rectangular Pin Configuration Guide
Pin configuration for MAX314CPE+ (rectangular package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for MAX314CPE+.
Refer to the datasheet for full pin configuration.
Typical Applications
MAX314CPE+ is suitable for 6 applications: Analog Signal Multiplexing, Test and Measurement Signal Routing, Sensor Isolation and Channel Selection, Data-Acquisition Front Ends, Industrial Control Signal Routing, Audio and Low-Frequency Analog Paths.
Analog Signal Multiplexing
The MAX314CPE+ is appropriate for routing multiple analog sources through four independently controlled SPST channels. Its 10 ohm maximum on-resistance limits insertion loss, while the specified 1.5 ohm matching between channels helps reduce channel-to-channel variation when a multiplexer switches between similar impedance levels. Bidirectional conduction also permits the same switch arrangement to support input and output routing. The commercial-grade 16-pin PDIP package favors prototype and through-hole instrument boards, where easy access and socketed construction can simplify maintenance.
Recommended
Test and Measurement Signal Routing
Four separately controlled switches allow a test system to connect, disconnect, or rearrange measurement paths without changing the surrounding analog circuitry. The MAX314CPE+ provides a maximum on-resistance of 10 ohms and channel matching of 1.5 ohms, supporting repeatable routing into similarly configured input stages. Low off-state leakage of 2.5 nA at +85°C is useful when isolating precision sources. The through-hole 16-pin PDIP format is particularly convenient for laboratory fixtures and manually assembled boards.
Recommended
Sensor Isolation and Channel Selection
The MAX314CPE+ can disconnect a sensor from a shared amplifier or measurement amplifier and route it toward an alternate channel. This isolation helps prevent loading and unwanted interactions when several sensor outputs share instrumentation electronics. Its four SPST paths provide separate control for each selection task, and bidirectional operation allows the same package to support source selection or return-path switching. Leakage of 2.5 nA at +85°C should be evaluated against the impedance and accuracy budget of the selected sensor.
Recommended
Data-Acquisition Front Ends
In a data-acquisition front end, the MAX314CPE+ can route conditioned inputs, calibration references, or diagnostic signals toward an analog-to-digital converter. Four channels reduce the number of discrete routing components needed when several sources must be selected. The 10 ohm maximum on-resistance is a key consideration when driving the input impedance of the converter or the preceding amplifier. Designers should check source impedance, settling behavior, control timing, and charge injection in the complete acquisition chain before finalizing the switch selection.
Recommended
Industrial Control Signal Routing
The MAX314CPE+ can route low-voltage control, feedback, or diagnostic signals between industrial control sections where galvanic isolation is handled elsewhere. Separate SPST channels allow each signal path to be enabled independently, and bidirectional conduction supports both source and return routing. The commercial temperature grade must be checked against the actual enclosure temperature and industrial environmental requirements. Its through-hole package is useful for control boards assembled with conventional through-hole connectors and discrete components.
Recommended
Audio and Low-Frequency Analog Paths
The MAX314CPE+ can select or isolate low-frequency audio and control paths in multi-zone analog equipment. The 10 ohm maximum on-resistance is acceptable in many low-impedance routing networks, while the 1.5 ohm matching specification helps maintain similar channel behavior. Because the device is an analog switch rather than an audio attenuator, designers should assess distortion, signal amplitude, and downstream loading separately. The four independently addressed channels also support mute, bypass, and source-selection arrangements.
Recommended
Recommended Products Summary
Engineering reference data for MAX314CPE+ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MAX314CPE | MAX314EPE+ | MAX313CPE+ | MAX312CPE+ |
|---|---|---|---|---|---|
| Package | 16-PDIP | 16-PDIP - same | 16-PDIP - same | 16-PDIP - same | 16-PDIP - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| On-Resistance | 10 ohms maximum | 10 ohms maximum | 10 ohms maximum for MAX314 family | 10 ohms maximum for stated family | 10 ohms maximum for stated family |
| On-Resistance Matching | 1.5 ohms | 1.5 ohms | 1.5 ohms for MAX314 family | 1.5 ohms for stated family | 1.5 ohms for stated family |
| Signal Direction | Bidirectional | Bidirectional | Bidirectional for MAX314 family | Bidirectional for stated family | Bidirectional for stated family |
Key Differentiators
- Four independently routed channels in one package (vs MAX314CPE)
- Commercial-grade ordering choice for conventional through-hole boards (vs MAX314EPE+)
- Low channel-to-channel resistance variation (vs MAX312CPE+)
Design Notes
Route each switched signal as a short, direct path between the source, MAX314CPE+ terminal, and destination. Keep sensitive analog nodes away from digital control traces and connector return currents. When two channels carry related signals, maintain consistent geometry to limit parasitic pickup and channel-to-channel skew. The 10 ohm maximum on-resistance should be treated as part of the complete source impedance rather than as an isolated insertion-loss specification.
Calculate the maximum closed-switch resistance for the operating signal range and compare it with the input impedance of the following stage. For a high-impedance source, connector leakage and PCB contamination can exceed the switch's specified 2.5 nA off leakage at +85°C. Use guarding, clean assembly practices, and appropriately insulated nodes when measuring femtoamp- or picoamp-level signals.
Do not treat MAX314CPE+ as a general power switch without checking the absolute maximum current, supply voltage, power dissipation, and signal-amplitude limits in the manufacturer data sheet. Likewise, do not substitute the surface-mount MAX314CSE ordering option on a PDIP PCB. Confirm pin numbering, control polarity, supply connections, and the selected temperature-grade suffix before fabrication.
Provide unobstructed solder access and adequate spacing around the through-hole package, especially when it is installed near a connector or board edge. Follow the package drawing for pin numbering and lead orientation. Decouple the positive supply with the capacitance specified by the manufacturer, connect the ground pins as directed, and keep supply return current out of sensitive signal-reference paths.
Compliance Information
The manufacturer product result identifies MAX314 as a production family but does not provide a complete material-compliance declaration for MAX314CPE+. Obtain current RoHS, REACH, lead-free, halogen-free, and conflict-minerals documentation for the exact ordering code before product release.