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CD4016 Quad Bilateral Switch Technical Summary

Overview

The CD4016 is a quad bilateral switch IC designed for analog or digital signal switching applications. As part of the CD4000 series CMOS logic family, it provides four independently controlled analog switches in a single package. The device is widely used for signal routing, multiplexing, and modulation/demodulation applications due to its high off-state impedance and low on-state resistance.

Built using CMOS technology, the CD4016 offers low power consumption while maintaining good signal integrity across a wide voltage range. Each switch conducts equally well in both directions when on, and blocks signals effectively when off, making it suitable for both analog and digital applications.

Key Features

• Quad bilateral switch configuration (4 independent switches)
• Low on-state resistance (typically 270Ω at VDD = 15V)
• High off-state output impedance (typically 10^12Ω)
• Wide supply voltage range: 3V to 15V
• Low power consumption (typical quiescent current of 1nA at 25°C)
• Matched switch characteristics (rON matching within 5Ω)
• Break-before-make switching action
• Standardized symmetrical output characteristics
• 100% tested for quiescent current at 20V
• 5V, 10V, and 15V parametric ratings

Applications

The CD4016 finds use in numerous analog and digital switching applications including:

Signal Routing

• Audio signal switching and routing
• Video signal multiplexing
• Communication channel selection

Modulation/Demodulation

• Analog multiplexers/demultiplexers
• Chopper-stabilized amplifiers
• Sample-and-hold circuits

Digital Systems

• Digital multiplexing
• Programmable logic arrays
• Signal gating

Other Applications

• Analog-to-digital conversion systems
• Precision resistor networks
• Oscillator circuits
• Industrial control systems

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage (VDD): -0.5V to +20V
• Input Voltage (VIN): -0.5V to VDD + 0.5V
• Switch I/O Voltage (VS): -0.5V to VDD + 0.5V
• Continuous Current through VDD or GND: ±50mA
• Continuous Current through Switch: ±25mA
• Operating Temperature Range: -55°C to +125°C
• Storage Temperature Range: -65°C to +150°C

Recommended Operating Conditions

• Supply Voltage Range: 3V to 15V
• Input Voltage Range: 0V to VDD
• Switch Voltage Range: 0V to VDD
• Operating Temperature Range: -40°C to +85°C

DC Electrical Characteristics (VDD = 15V, TA = 25°C)

• High-Level Input Voltage (min): 11V
• Low-Level Input Voltage (max): 4V
• On-State Resistance (max): 400Ω
• On-State Resistance Matching (max): 5Ω
• Off-State Leakage Current (max): 100nA
• Quiescent Device Current (max): 1μA

AC Electrical Characteristics

• Turn-On Time (typical): 120ns
• Turn-Off Time (typical): 100ns
• Switch Capacitance (typical): 7.5pF
• Bandwidth (typical): 40MHz

Package Information

Available Packages

• 14-pin PDIP (Plastic Dual In-line Package)
• 14-pin SOIC (Small Outline Integrated Circuit)
• 14-pin TSSOP (Thin Shrink Small Outline Package)

PDIP Package Dimensions

• Package Length: 19.3mm (max)
• Package Width: 6.35mm (max)
• Lead Pitch: 2.54mm
• Body Thickness: 3.3mm (max)

SOIC Package Dimensions

• Package Length: 8.65mm (max)
• Package Width: 3.91mm (max)
• Lead Pitch: 1.27mm
• Body Thickness: 1.75mm (max)

Design Considerations

Power Supply Decoupling

Proper power supply decoupling is essential for optimal performance. A 0.1μF ceramic capacitor should be placed as close as possible between VDD and GND pins to minimize noise and ensure stable operation.

Signal Integrity

When switching analog signals, consider the following:

• Keep signal levels within the supply voltage range
• Minimize capacitive loading on switch outputs
• Use proper termination for high-frequency signals
• Consider on-resistance effects on signal amplitude

Thermal Considerations

While the CD4016 has low power consumption, thermal management is still important in high-density designs or high ambient temperature environments. Ensure adequate airflow and consider thermal relief patterns in PCB layout.

Safety and Compliance Information

The CD4016 is not specifically designed for safety-critical applications. Designers must ensure compliance with all applicable safety standards and regulations for their specific application. Special considerations apply for:

• Medical equipment applications
• Automotive systems
• Aerospace and defense applications
• Industrial control systems

For life-critical medical equipment (Class III devices or equivalent), special authorization and contractual agreements are required before using this component. Designers assume full responsibility for proper component selection and application compliance.

Alternative Components

For applications requiring enhanced performance, consider these alternatives:

• CD4066: Improved version with lower on-resistance
• 74HC4066: High-speed CMOS version
• DG411: Precision analog switch with lower on-resistance
• MAX4617: Low-voltage, low on-resistance alternative