TC4051BFTELN

Overview

The TC4051BFTELN is a single-ended 8-channel multiplexer/demultiplexer manufactured by Toshiba Semiconductor and Storage. It utilizes CMOS technology to switch analog and digital signals with large amplitude (VDD − VEE) using control signals with small logical amplitude (VDD − VSS). The device operates within a DC supply voltage range of 3V to 18V. Key electrical parameters include an on-state resistance maximum of 200 Ω at 15V, a quiescent supply current maximum of 600 μA at 85°C, and a -3dB cutoff frequency of 20 MHz. It features low input/output leakage current of ±100 nA and is housed in a 16-TSSOP package.

Feature Summary

• Supports simultaneous selection and mixture of analog and digital signals
• Enables switching of large signal amplitudes using low-voltage logic control
• Provides low on-state resistance suitable for connecting to low-impedance circuits

Applications

• Signal routing between circuits requiring mixed analog and digital handling
• Data acquisition systems utilizing low-impedance inputs
• Multiplexing applications operating within wide voltage ranges

Procurement Notes

Verify the specific ordering suffix against official Toshiba documentation to confirm the TSSOP-16 package type and reel specifications. Ensure compliance with RoHS3 standards as indicated in distributor listings. Confirm that the component meets the required operating temperature range of -40°C to +85°C for your specific application environment before finalizing procurement.

Selection Notes

Select this component when an 8-channel single-ended multiplexer is required with wide supply voltage flexibility. The TC4051B series allows independent power supplies for logic (VDD-VSS) and signal paths (VDD-VEE), facilitating level shifting. Compare the on-resistance and bandwidth requirements against the TC4052B or TC4053B if differential or triple 2-channel configurations are needed instead.

Part Context

The TC4051B belongs to the Toshiba CMOS Digital Integrated Circuit Silicon Monolithic family, which also includes the TC4052B (differential 4-channel) and TC4053B (triple 2-channel). These devices share similar control logic and switching capabilities but differ in channel configuration. The BF suffix indicates the SOP/TSSOP surface-mount variant, distinct from the BP through-hole DIP version.

Replacement Considerations

Direct functional equivalents within the same family include the TC4052B and TC4053B, though they offer different channel counts and configurations. For pin-compatible replacements, verify the package dimensions and electrical characteristics such as on-resistance and propagation delay against the original design requirements.