SN74AUC1G66DBVR

Overview

The SN74AUC1G66DBVR is a single bilateral analog switch manufactured by Texas Instruments, housed in a five-pin SOT-23 (DBV) package. It operates within a supply voltage range of 0.8 V to 2.7 V and supports both analog and digital signals between VCC and GND. The device features low on-state impedance, typically 9 Ω at 2.3 V, with a maximum of 15 Ω. It offers high-speed performance with propagation delays as low as 0.2 ns at 1.8 V. Key electrical characteristics include an off-state leakage current of ±1 µA max, a control input capacitance of 2 pF, and a switch input/output capacitance of 3.5 pF. The component provides latch-up protection exceeding 100 mA per JESD 78 Class II standards.

Feature Summary

• Operates at sub-1-V levels specifically designed for 1.65-V to 1.95-V applications
• Utilizes NanoFree technology using the die as the package for compact integration
• Provides high linearity and a high on-off output voltage ratio
• Features robust ESD protection exceeding JESD 22 specifications

Applications

• Signal gating and chopping circuits
• Modulation or demodulation systems such as modems
• Signal multiplexing for analog-to-digital conversion systems
• Signal multiplexing for digital-to-analog conversion systems

Procurement Notes

Verify the exact ordering suffix against the manufacturer's Package Option Addendum to confirm the specific tape and reel configuration and marking details. Ensure that the procurement matches the active production status listed in the official documentation. Cross-reference the lead finish and moisture sensitivity level ratings during sourcing to guarantee compatibility with assembly requirements.

Selection Notes

Select this component when designing circuits requiring operation below 1 V or strictly within the 1.65 V to 1.95 V range. The low on-state resistance makes it suitable for precision signal routing where minimal voltage drop is critical. Consider the SOT-23 package constraints for space-limited designs. Verify that the load capacitance and transition rates align with the specified switching speed requirements for the target application frequency.

Part Context

This part belongs to the SN74AUC1G66 family of single bilateral analog switches from Texas Instruments. It is distinct from other logic families due to its ultra-low voltage capability and NanoFree packaging. The DBVR suffix indicates the SOT-23 package type supplied in a large tape and reel format containing 3000 units. It serves as a fundamental building block for low-power signal path management in portable electronics.

Replacement Considerations

Direct replacements within the same family include SN74AUC1G66DCKR (SC-70 package) and SN74AUC1G66YZPR (DSBGA package). These variants share identical electrical characteristics but differ in physical footprint and thermal properties. Verify pinout compatibility and package dimensions before substituting.