Overview
The ADG1634BCPZ-REEL7 is a monolithic industrial CMOS (iCMOS®) analog switch produced by Analog Devices Inc. This device comprises four independently selectable single-pole, double-throw (SPDT) switches. It is designed to operate with low on-resistance and high on-resistance flatness, making it ideal for applications requiring minimal signal distortion.
The ADG1634 is available in a 20-lead LFCSP (4mm x 4mm with EP) package and features an enable input (EN) for controlling the device's operation. When disabled, all channels are switched off, preventing momentary shorting during channel switching due to its break-before-make switching action.
Key Specifications
| Parameter | Typical | Maximum | Unit | Test Conditions |
|---|---|---|---|---|
| Analog Signal Range | 0 V to VDD | V | ||
| On Resistance (RON) | 4.5 Ω | 6.5 Ω | Ω | VS = 0 V to 10 V, IS = −10 mA |
| On-Resistance Match Between Channels (∆RON) | 0.25 Ω | 0.35 Ω | Ω | VS = 10 V, IS = −10 mA |
| On-Resistance Flatness (RFLAT(ON)) | 0.9 Ω | 1.9 Ω | Ω | VS = 0 V to 10 V, IS = −10 mA |
| −3 dB Bandwidth | 109 MHz | MHz | RL = 50 Ω, CL = 5 pF | |
| Power Supply Range | ±3.3 V, ±5 V, ±12 V | V | ||
| Current Consumption (IDD) | 0.001 µA (typ) | 600 µA (max) | µA | Digital inputs = 0 V or VDD |
Key Features
- Low On-Resistance: The ADG1634 features an ultralow on-resistance of 4.5 Ω typical, ensuring minimal signal attenuation.
- High On-Resistance Flatness: The device exhibits high on-resistance flatness, which is crucial for maintaining signal integrity across the operating range.
- Break-Before-Make Switching: Prevents momentary shorting when switching channels, ensuring reliable operation.
- Enable Input (EN): Allows for the device to be enabled or disabled, with all channels switched off when disabled.
- Low Power Consumption: Ultralow power dissipation makes it suitable for battery-powered and portable instruments.
- Wide Operating Range: Supports single and dual supply operations from ±3.3 V, ±5 V, to ±12 V.
Applications
- Communication Systems: Ideal for signal routing and switching in communication systems.
- Medical Systems: Used in medical devices for signal processing and routing.
- Audio and Video Signal Routing: Suitable for audio and video signal switching applications.
- Automatic Test Equipment: Utilized in test equipment for signal switching and routing.
- Data Acquisition Systems: Employed in data acquisition systems where low distortion is critical.
- Battery-Powered Systems: Ideal for battery-powered instruments due to its low power consumption.
- Sample-and-Hold Systems: Used in sample-and-hold circuits for precise signal handling.
- Relay Replacements: Can replace mechanical relays in various applications.
Q & A
- What is the typical on-resistance of the ADG1634?
The typical on-resistance of the ADG1634 is 4.5 Ω.
- What is the maximum on-resistance flatness of the ADG1634?
The maximum on-resistance flatness is 1.9 Ω.
- What is the bandwidth of the ADG1634?
The −3 dB bandwidth of the ADG1634 is 109 MHz.
- What are the available package options for the ADG1634?
The ADG1634 is available in 20-lead LFCSP (4mm x 4mm with EP) and 20-lead TSSOP packages.
- How does the enable input (EN) function on the ADG1634?
The enable input (EN) allows the device to be enabled or disabled, with all channels switched off when disabled.
- What are the typical current consumption values for the ADG1634?
The typical current consumption is 0.001 µA, with a maximum of 600 µA.
- In what types of systems is the ADG1634 commonly used?
The ADG1634 is commonly used in communication systems, medical systems, audio and video signal routing, automatic test equipment, data acquisition systems, battery-powered systems, sample-and-hold systems, and as relay replacements.
- What is the significance of the break-before-make switching action in the ADG1634?
The break-before-make switching action prevents momentary shorting when switching channels, ensuring reliable operation.
- What is the operating voltage range for the ADG1634?
The ADG1634 supports single and dual supply operations from ±3.3 V, ±5 V, to ±12 V.
- Why is the ADG1634 suitable for battery-powered instruments?
The ADG1634 is suitable for battery-powered instruments due to its ultralow power dissipation.
