MC14051BDTR2G

Analog Switches, Multiplexers, Demultiplexers Overview

The MC14051BDTR2G is a digitally controlled analog multiplexer/demultiplexer manufactured by onsemi in a TSSOP-16 package. It implements an SP8T solid-state switch with low ON impedance and very low OFF leakage current. The device supports a supply voltage range of 3.0 Vdc to 18 Vdc, allowing analog signal control across the complete supply voltage range. Key electrical parameters include a maximum ON resistance (Ron) of 280 ohms at 15 V supply, a -3dB bandwidth of 17 MHz, and an off-channel capacitance of 7.5 pF. The input leakage current is typically ±0.05 nA, with a maximum of 100 nA. The component operates within a temperature range of -55°C to +125°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Triple diode protection integrated on control inputs for enhanced reliability
• Break before make switching function prevents signal overlap during transitions
• Linearized transfer characteristics ensure accurate analog signal handling
• Low-noise performance suitable for sensitive signal paths

Analog Switches, Multiplexers, Demultiplexers Applications

• Signal routing in data acquisition systems
• Audio signal switching and mixing applications
• Test and measurement equipment multiplexing
• Industrial process control signal selection

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the ordering suffix matches the required package type, as 'DT' indicates TSSOP-16. Confirm RoHS compliance status and lead-free material declarations against the latest manufacturer documentation. Ensure the specific revision level aligns with design requirements. Cross-reference the manufacturer part number with distributor listings to confirm authenticity and traceability before finalizing procurement orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when an 8-channel analog switch is required with CMOS logic compatibility. Consider the MC14051B series for general-purpose multiplexing where moderate speed and low leakage are prioritized over ultra-low ON resistance. Evaluate the HC4051 variant if higher speed or lower Ron is necessary. Ensure the operating voltage range fits the system's single or dual supply configuration constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MC1405xB family of analog multiplexers, which also includes the MC14052B (Dual 4-Channel) and MC14053B (Triple 2-Channel). These devices share similar pinouts and functional characteristics but differ in channel count and configuration. The family offers pin-for-pin replacement for legacy CD405x series components, facilitating upgrades in existing designs without board layout changes.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MC14051BDR2G serves as a direct pin-for-pin replacement for the CD4051B. For applications requiring lower ON resistance, consider the HC4051 high-speed CMOS device. Verify that any substitute maintains the same TSSOP-16 package dimensions and thermal characteristics to ensure mechanical compatibility.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum recommended difference between VDD and VEE?

While the absolute maximum rating allows up to 18.0 V, the datasheet recommends a maximum difference of 15 V between VDD and VEE for optimal parameter specification.

How does the device handle unused inputs?

Unused inputs must always be tied to an appropriate logic voltage level, such as VSS, VEE, or VDD. Unused outputs should be left open to ensure proper operation.

Is balanced supply required for operation?

Balanced supplies are not required. However, VSS must be greater than or equal to VEE. Asymmetric supply configurations, such as VDD=+10V, VSS=+5V, and VEE=-3V, are acceptable.