CD74HC4067M96: 16-Channel Analog Multiplexer for Signal Switching

ElecSuppliers Part Number GuideAug 20, 2026

The CD74HC4067M96 is a digitally controlled 16-channel analog multiplexer and demultiplexer from Texas Instruments. It allows one common signal path to be connected to one of 16 analog channels according to the state of its digital select inputs.

The device is useful when an embedded system needs to monitor or route multiple analog signals while using a limited number of ADC or signal-processing inputs.

What Is the CD74HC4067M96?

The CD74HC4067M96 provides 16 individually selectable analog channels connected to a common terminal.

Four digital select inputs determine which channel is connected. An enable input can disable all channels, allowing the switch network to be disconnected from the common signal path.

Unlike a conventional digital multiplexer that handles only logic levels, the CD74HC4067M96 is designed to switch analog voltages as well. The signal path is bidirectional, meaning the selected channel can function as either an input or an output.

This makes the device useful for both analog signal selection and signal distribution.

CD74HC4067M96 16-Channel Switching

The main advantage of the CD74HC4067M96 is its ability to select one signal from 16 available channels.

For example, a controller with only one ADC input could use the multiplexer to sequentially connect multiple sensor signals to that ADC. The controller changes the four select inputs, waits for the selected channel to settle, and then performs the required measurement.

This approach can significantly reduce the number of analog inputs required on the main controller.

The multiplexer itself does not perform analog-to-digital conversion. It simply establishes the selected electrical path, so an ADC or other signal-processing circuit is still required.

CD74HC4067M96 Analog Signal Routing

Because the switches are bidirectional, the CD74HC4067M96 can be used for more than sensor input selection.

A signal source can be connected to the common terminal and routed toward one of multiple channels. Alternatively, multiple sources can be connected to the individual channels and one selected signal can be routed to the common terminal.

This flexibility allows the same device to be used in measurement systems, test equipment, analog routing circuits and configurable signal paths.

CD74HC4067M96 On Resistance

On resistance is an important parameter when using an analog multiplexer.

The CD74HC4067M96 has a typical on resistance of approximately 70Ω at a 4.5V supply and approximately 60Ω at 6V. The resistance introduces a voltage drop when current flows through the selected channel and can also interact with the impedance of the surrounding circuit.

For high-impedance sensor outputs, the effect may be relatively small. For low-impedance or higher-current signals, the switch resistance needs to be included in the circuit analysis.

The resistance also varies with operating conditions and signal voltage, so precision analog designs should evaluate the complete signal path rather than treating the switch as an ideal connection.

CD74HC4067M96 Break-Before-Make Switching

The CD74HC4067M96 uses break-before-make switching.

This means the currently selected connection is opened before another channel is connected. The architecture helps prevent two channels from being directly connected together during channel transitions.

This behavior is useful when switching between independent analog sources because it reduces the risk of temporarily creating an unintended connection between different signal paths.

The typical break-before-make switching time is specified at approximately 6ns under the stated operating conditions.

CD74HC4067M96 Operating Voltage

The CD74HC4067M96 belongs to the HC logic family and supports operation from 2V to 6V.

The wide supply range gives designers flexibility when integrating the multiplexer into different analog and digital systems.

However, the allowable analog signal range is related to the supply voltage. Engineers should ensure that the switched signal remains within the specified operating range of the device.

The digital control inputs should also be evaluated at the actual supply voltage because logic thresholds depend on the operating conditions.

CD74HC4067M96 Control Inputs

Four binary select inputs determine which of the 16 channels is connected to the common terminal.

The combination of the four select signals corresponds to one of the available channels. This makes channel selection straightforward to implement using a microcontroller, FPGA or other digital controller.

The enable input provides additional control. When the device is disabled, all analog switches are turned off.

This can be useful when the signal path needs to be isolated temporarily or when multiple switching devices are used within a larger analog routing architecture.

CD74HC4067M96 for Sensor Multiplexing

One of the most practical applications for the CD74HC4067M96 is sensor multiplexing.

A system with multiple sensors can connect each sensor to an individual multiplexer channel. The controller selects one channel at a time and connects it to an ADC or measurement circuit.

This architecture is particularly useful when the number of sensors exceeds the number of available ADC channels.

However, the sensor output impedance should be considered carefully. After switching channels, the ADC input and signal path may require sufficient settling time before an accurate measurement is taken.

CD74HC4067M96 Signal Integrity

Although the CD74HC4067M96 provides fast switching, the quality of the final signal depends on the complete circuit.

The on resistance, parasitic capacitance, source impedance and load impedance can form an RC network that affects signal settling and bandwidth.

For slow-moving sensor signals, this effect may be relatively easy to accommodate. For higher-frequency analog signals, engineers should analyze the complete source-to-load path and determine whether the multiplexer introduces unacceptable attenuation or distortion.

PCB layout also becomes more important as signal frequency increases.

CD74HC4067M96 Applications

The CD74HC4067M96 can be used in applications requiring multiple analog signals to share a common signal path.

Typical applications include sensor selection, ADC input expansion, analog signal routing, measurement equipment, data acquisition systems, test instruments and configurable analog interfaces.

It can also be used for signal demultiplexing when a common signal needs to be directed toward one of several external channels.

CD74HC4067M96 Package

The specific CD74HC4067M96 Part Number uses a 24-pin SOIC package and is specified for a -55°C to +125°C operating temperature range.

The complete Part Number matters when designing or sourcing a PCB because other CD74HC4067 variants use different packages and ordering configurations.

For an existing board, engineers should match the exact package footprint, pin assignment and electrical characteristics rather than selecting a component solely because it carries the CD74HC4067 family name.

CD74HC4067M96 Design Considerations

The most important factors when designing around the CD74HC4067M96 include signal voltage, source impedance, load impedance, on resistance, switching time and required settling time.

If the device is connected directly to an ADC, the RC characteristics of the multiplexer and ADC input should be considered together. The controller may need to allow additional settling time after changing the selected channel.

For precision measurement systems, leakage current and switch resistance can also affect the measured result, particularly when the source impedance is high.

Choosing the CD74HC4067M96

The CD74HC4067M96 is a useful option when a design needs to route one of 16 analog channels through a digitally controlled switch.

Its bidirectional signal path, 2V to 6V supply range, low typical on resistance and break-before-make operation provide the basic characteristics required for many analog multiplexing applications.

Before selecting the device, engineers should evaluate the signal amplitude, frequency, source impedance, ADC requirements, switching speed, temperature range and PCB package requirements.

CD74HC4067M96 for Analog Input Expansion

The CD74HC4067M96 provides a practical way to expand the number of analog signals that can be connected to a system with limited ADC resources.

By selecting one channel at a time, a single measurement path can be shared among multiple sensors or analog sources. This can reduce controller pin requirements and simplify the overall system architecture.

For new designs, the complete CD74HC4067M96 specifications should be checked against the intended signal range and measurement requirements, especially when the device is used in precision or higher-frequency analog applications.