Texas Instruments CD4016BMG4

Overview

CD4016BMG4 from Texas Instruments is a CMOS quad bilateral switch IC designed for analog and digital signal routing in mixed-signal systems. It supports ±10V peak-to-peak analog signals or 20V digital switching, features 280Ω typical on-resistance at 15V, matched switch resistance (≤10Ω difference), and 40MHz typical bandwidth - enabling precise multiplexing in audio, instrumentation, and data acquisition circuits.

For engineers reviewing the CD4016BMG4 datasheet, CD4016BMG4 pinout, CD4016BMG4 application, or CD4016BMG4 equivalent, key selection criteria include its bilateral conduction capability, low THD (<0.5% at 1kHz), high off-state resistance (>10¹² Ω), minimal crosstalk (−50dB at 0.9MHz), and operation across −55°C to +125°C with supply voltages from 3V to 18V.

Technical Context

The CD4016BMG4 implements four independent bilateral transmission gates, each controlled by a single logic-level input that simultaneously biases complementary p-channel and n-channel MOSFETs to achieve symmetrical on-resistance and bidirectional signal flow. Its architecture enables true analog signal pass-through without polarity constraints.

Each switch exhibits matched r_ON (Δr_ON ≤ 10Ω over 15V range), low feedthrough capacitance (0.2pF), and high isolation (65dB on/off voltage ratio at 10kHz), making it suitable for precision sample-and-hold, chopper-stabilized amplifiers, and demodulator front-ends where signal integrity and channel-to-channel consistency are critical.

Key Specifications

Pinout & Package

CD4016BMG4 is supplied in a 14-pin SOIC (Small Outline Integrated Circuit) package (Package Code D), measuring 8.65mm × 6mm, with 1.27mm lead pitch and 1.75mm maximum height. The package is RoHS-compliant with NiPdAu lead finish and meets JEDEC Level-1 moisture sensitivity rating.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bilateral switch applications.

Compared with CD4016BMG4, CD4066BM offers lower conduction loss but trades off leakage performance, while 74HC4066D delivers faster switching at the expense of analog voltage range and temperature robustness - making CD4016BMG4 the preferred choice for wide-range, precision analog routing in harsh environments.

Availability

CD4016BMG4 is available at Aetrix Electronics and suitable for industrial instrumentation, aerospace data acquisition, and medical sensor interface designs requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for CD4016BMG4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with over 90 years of innovation in high-reliability components.

The CD4016B series was developed for high-voltage analog signal routing in mixed-signal systems - targeting applications demanding wide supply range, bilateral conduction, and robust performance across military and industrial temperature grades.

FAQ

What is the maximum signal voltage swing supported by the CD4016BMG4?

The CD4016BMG4 supports up to ±10V peak-to-peak analog signals or 20V digital signals, provided the total supply differential (V_DD − V_SS) remains within 3V to 18V. This allows operation with dual supplies like ±5V or ±7.5V, or single supplies up to +15V/GND. Exceeding these limits risks permanent damage per absolute maximum ratings.

Does the CD4016BMG4 require external pull-up or pull-down resistors on its control inputs?

No, the CD4016BMG4 has extremely high control input impedance (10¹² Ω typical), so external biasing resistors are unnecessary. Control inputs (pins 3, 4, 5, 6) can be driven directly from CMOS logic outputs. However, floating control pins must be avoided - unused inputs should be tied to V_DD or V_SS to prevent undefined switch states and increased power consumption.

Can the CD4016BMG4 be used in a single-supply 3.3V system?

Yes, the CD4016BMG4 operates down to 3V supply (V_DD − V_SS = 3V), making it compatible with 3.3V systems. However, on-resistance increases significantly at lower voltages (e.g., ~7kΩ at 3V), and signal swing is limited to 0–3.3V. For optimal analog performance, use ≥5V supplies; for digital-only routing at 3.3V, verify r_ON impact on signal integrity in the target application.

How does the CD4016BMG4 handle signal polarity when used with dual supplies?

The CD4016BMG4 is inherently bilateral and symmetrical: signal polarity is irrelevant. When configured with dual supplies (e.g., V_DD = +5V, V_SS = −5V), it passes AC signals centered at 0V with equal on-resistance in both directions. The switch conducts regardless of whether the signal is positive or negative relative to ground - a core advantage over unidirectional analog switches.

Is the CD4016BMG4 pin-compatible with the CD4066B series?

No, the CD4016BMG4 is not pin-compatible with the CD4066B. While both are quad bilateral switches, CD4016B uses pins 1, 2, 13, 14 for S/D and pins 3, 4, 5, 6 for controls, whereas CD4066B assigns S/D to pins 1, 2, 3, 4 and controls to pins 5, 6, 7, 8. PCB layout and firmware must be adapted when substituting - always verify pin mapping using the official TI datasheet for CD4016BMG4 before redesign.