4009 Datasheet | Next Electromics

Technical Summary: 4009 Hex Inverter Buffer/Converter

Overview

The 4009 is a CMOS hex inverter buffer/converter IC designed for high-voltage applications. It is part of the 4000-series CMOS logic family, which is known for its low power consumption, wide operating voltage range, and compatibility with TTL logic levels. The 4009 consists of six independent inverter buffers that can be used for level shifting, signal inversion, or buffering in digital circuits. Its ability to interface between different voltage levels makes it particularly useful in mixed-voltage systems.

This IC is widely used in industrial, automotive, and consumer electronics due to its robustness and reliability. The 4009 is available in various package options, including PDIP, SOIC, and TSSOP, making it suitable for both through-hole and surface-mount applications.

Features

Hex Inverter Buffers: Six independent inverter channels in a single package.
High-Voltage Operation: Supports voltage levels up to 18V, making it suitable for interfacing between low-voltage logic and higher-voltage peripherals.
Low Power Consumption: Typical power dissipation of only a few microwatts in standby mode, ideal for battery-operated devices.
Wide Operating Voltage Range: Operates from 3V to 18V, providing flexibility in various applications.
TTL-Compatible Inputs: Can directly interface with TTL logic levels when operating at 5V.
High Noise Immunity: CMOS technology ensures excellent noise margin, reducing susceptibility to electrical interference.
Standardized Symmetrical Output Characteristics: Ensures consistent performance across all channels.

Applications

The 4009 hex inverter buffer/converter is versatile and finds use in a wide range of applications, including:

Level Shifting: Converting signals between different voltage domains, such as 5V to 12V systems.
Signal Buffering: Isolating sensitive logic circuits from high-capacitance loads or long transmission lines.
Waveform Generation: Creating square waves or pulse signals in oscillator circuits.
Logic Inversion: Inverting digital signals in control or data processing circuits.
Industrial Control Systems: Used in PLCs, motor drivers, and sensor interfaces.
Automotive Electronics: Employed in dashboard displays, lighting controls, and communication modules.
Consumer Electronics: Found in remote controls, audio equipment, and power management circuits.

Electrical Characteristics

Absolute Maximum Ratings

Supply Voltage (V_DD): -0.5V to +18V
Input Voltage (V_IN): -0.5V to V_DD + 0.5V
Output Voltage (V_OUT): -0.5V to V_DD + 0.5V
Operating Temperature Range: -55°C to +125°C
Storage Temperature Range: -65°C to +150°C

Recommended Operating Conditions

Supply Voltage (V_DD): 3V to 18V
Input High Voltage (V_IH): 70% of V_DD (min)
Input Low Voltage (V_IL): 30% of V_DD (max)
Output Current (I_OUT): ±10mA (per channel)

DC Electrical Characteristics (at V_DD = 10V, T_A = 25°C)

High-Level Output Voltage (V_OH): 9.95V (min) at I_OUT = -1.0mA
Low-Level Output Voltage (V_OL): 0.05V (max) at I_OUT = 1.0mA
Input Leakage Current (I_IN): ±0.1µA (max) at V_IN = 0V or V_DD
Quiescent Supply Current (I_DD): 1.0µA (max) at V_IN = 0V or V_DD

AC Electrical Characteristics (at V_DD = 10V, C_L = 50pF, T_A = 25°C)

Propagation Delay (t_PD): 60ns (max) for input to output transition
Output Transition Time (t_TLH, t_THL): 100ns (max)
Power Dissipation Capacitance (C_PD): 30pF (typ) per channel

Package Information

The 4009 is available in multiple package options to accommodate different assembly and space requirements:

PDIP-16 (Plastic Dual In-Line Package): 16-pin through-hole package with 0.3" row spacing.
SOIC-16 (Small Outline Integrated Circuit): 16-pin surface-mount package with 0.05" pin spacing.
TSSOP-16 (Thin Shrink Small Outline Package): 16-pin surface-mount package with 0.025" pin spacing, ideal for space-constrained applications.