Overview
The CD74HCT4067M is a digitally controlled analog switch produced by Texas Instruments. It utilizes silicon-gate CMOS technology to achieve operating speeds similar to LSTTL, while maintaining the low power consumption of standard CMOS integrated circuits. This device functions as a 16-channel analog multiplexer and demultiplexer, allowing any analog input to be used as an output and vice versa. It features low on-resistance, low off-leakages, and an enable control that disables all switches when high.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Operating Temperature Range | -55 to 125 | °C | |
| Supply Voltage (VCC) | 4.5 to 5.5 | V | |
| On Resistance (RON) | 70 (typ) at VCC = 4.5V, 60 (typ) at VCC = 6V | Ω | |
| Propagation Delay Time (tPHL, tPLH) | 15 ns (typ) at VCC = 4.5V, 13 ns (typ) at VCC = 6V | ns | CL = 2 pF, TA = 25°C |
| Switch Turn On Time (tPZH, tPZL) | 50 ns (typ) at VCC = 4.5V, 49 ns (typ) at VCC = 6V | ns | CL = 2 pF, TA = 25°C |
| Switch Turn Off Time (tPHZ, tPLZ) | 58 ns (typ) at VCC = 4.5V, 49 ns (typ) at VCC = 6V | ns | CL = 2 pF, TA = 25°C |
| Input Leakage Current (IIL) | ±0.1 µA (typ) at VCC = 6V, TA = 25°C | µA | |
| Off-Switch Leakage Current (IZ) | ±0.8 µA (typ) at VCC = 6V, TA = 25°C | µA | |
| Package Type | SOIC (24 pins) |
Key Features
- Wide analog input voltage range
- Low on-resistance: 70Ω (typ) at VCC = 4.5V, 60Ω (typ) at VCC = 6V
- Fast switching and propagation speeds
- Break-before-make switching
- Wide operating temperature range: –55°C to +125°C
- Balanced propagation delay and transition times
- Significant power reduction compared to LSTTL logic ICs
- Direct LSTTL input logic compatibility: VIL = 0.8V (max), VIH = 2V (min)
- CMOS input compatibility: Il ≤ 1µA at VOL, VOH
- High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
Applications
- Signal gating
- Modulators
- Squelch controls
- Demodulators
- Choppers
- Commutating switches
- Analog-to-digital and digital-to-analog conversions
- Digital control of frequency, impedance, phase, and analog-signal gain
- Building automation
- Wireless infrastructure
- Appliances
- Data center & enterprise computing
- Retail automation & payment
Q & A
- What is the primary function of the CD74HCT4067M?
The CD74HCT4067M is a digitally controlled 16-channel analog multiplexer and demultiplexer.
- What is the operating temperature range of the CD74HCT4067M?
The operating temperature range is –55°C to +125°C.
- What is the typical on-resistance of the CD74HCT4067M at VCC = 4.5V?
The typical on-resistance is 70Ω at VCC = 4.5V.
- What is the propagation delay time of the CD74HCT4067M at VCC = 4.5V?
The propagation delay time is typically 15 ns at VCC = 4.5V and CL = 2 pF.
- What is the package type of the CD74HCT4067M?
The package type is SOIC (24 pins).
- Does the CD74HCT4067M have direct LSTTL input logic compatibility?
Yes, it has direct LSTTL input logic compatibility with VIL = 0.8V (max) and VIH = 2V (min).
- What are some common applications of the CD74HCT4067M?
Common applications include signal gating, modulators, squelch controls, demodulators, choppers, and analog-to-digital conversions.
- What is the input leakage current of the CD74HCT4067M at VCC = 6V and TA = 25°C?
The input leakage current is typically ±0.1 µA at VCC = 6V and TA = 25°C.
- Does the CD74HCT4067M have high noise immunity?
Yes, it has high noise immunity with NIL = 30% and NIH = 30% of VCC at VCC = 5V.
- How does the enable control function on the CD74HCT4067M?
The enable control disables all switches to their off state when it is high.
