Overview
The CD4097B, specifically the CD4097BMG4, is a CMOS analog multiplexer or demultiplexer produced by Texas Instruments. This device is part of the CD40x7B series, known for its high-voltage ratings and low ON resistance. The CD4097B is a 16-channel multiplexer/demultiplexer with four binary control inputs and an inhibit input, allowing for precise selection and control of analog signals.
It features internal address decoding, low quiescent power dissipation, and high OFF resistance, making it suitable for a variety of analog and digital multiplexing applications. The device is available in several package types, including small-outline and thin shrink small-outline packages.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Number of Channels | 16 | |
| Voltage Rating | 20V | |
| ON Resistance (RON) | 125Ω (typ) over 15Vp-p signal range | VDD – VSS = 15V |
| OFF Resistance (Channel Leakage) | ±10pA (typ) at VDD – VSS = 10V | |
| Quiescent Power Dissipation | 0.2µW (typ) at VDD – VSS = 10V | |
| Input Current (max) | 1µA at 18V | Full package temperature range |
| Package Types | 24-lead hermetic DIP, 24-lead DIP, 24-lead SOIC, 24-lead TSSOP, 24-lead Thin Shrink TSSOP | |
| -3dB Cutoff Frequency (switch on) | 14 MHz (Common Out/In), 60 MHz (Any channel) | VC = VDD = 5V, VSS = –5V, Vis(p-p) = 5V (sine wave centered on 0V), RL = 1kΩ |
Key Features
- High-voltage types with 20V rating
- Low ON resistance: 125Ω (typ) over 15Vp-p signal range
- High OFF resistance: channel leakage of ±10pA (typ) at VDD – VSS = 10V
- Very low quiescent power dissipation: 0.2µW (typ) at VDD – VSS = 10V
- Binary address decoding on chip
- 5V, 10V, and 15V parametric ratings
- 100% tested for quiescent current at 20V
- Standardized symmetrical output characteristics
- Maximum input current of 1µA at 18V over full package temperature range
Applications
- Analog signal and digital multiplexing
- Transmission-gate logic implementation
- A/D and D/A conversion
- Signal gating
Q & A
- What is the CD4097B used for?
The CD4097B is used for analog signal and digital multiplexing, transmission-gate logic implementation, A/D and D/A conversion, and signal gating.
- How many channels does the CD4097B have?
The CD4097B has 16 channels.
- What is the voltage rating of the CD4097B?
The CD4097B has a voltage rating of 20V.
- What is the typical ON resistance of the CD4097B?
The typical ON resistance is 125Ω over a 15Vp-p signal range.
- What is the quiescent power dissipation of the CD4097B?
The quiescent power dissipation is 0.2µW (typ) at VDD – VSS = 10V.
- What are the package types available for the CD4097B?
The CD4097B is available in 24-lead hermetic DIP, 24-lead DIP, 24-lead SOIC, 24-lead TSSOP, and 24-lead Thin Shrink TSSOP packages.
- What is the -3dB cutoff frequency for the CD4097B?
The -3dB cutoff frequency is 14 MHz for the common out/in and 60 MHz for any channel.
- How does the inhibit input function on the CD4097B?
A logic '1' present at the inhibit input turns all channels off.
- What is the maximum input current for the CD4097B?
The maximum input current is 1µA at 18V over the full package temperature range.
- Does the CD4097B have internal address decoding?
Yes, the CD4097B has binary address decoding on the chip.
