Overview
The ADG1221BRMZ is a monolithic, complementary metal-oxide semiconductor (CMOS) device manufactured by Analog Devices Inc. It features two independent single-pole/single-throw (SPST) switches, designed using the iCMOS® technology. This device is part of the ADG1221/ADG1222/ADG1223 family, differing primarily in their digital control logic. The ADG1221 switches are activated with a Logic 1 on the appropriate control input, making it suitable for various switching and multiplexing applications.
Key Specifications
| Parameter | Value |
|---|---|
| Switch Type | Dual SPST |
| Supply Voltage | ±15 V, +12 V |
| Switch On Resistance | Typically 45 Ω at VDD = ±15 V |
| Charge Injection | Typically 0.5 pC at VDD = ±15 V |
| Capacitance | Typically 4.5 pF at VDD = ±15 V |
| Operating Temperature | -40°C to +125°C |
| Package | 10-Lead MSOP |
Key Features
- Low capacitance and low charge injection, making it suitable for high-precision applications.
- Wide input signal range that extends to the supplies.
- Each switch conducts equally well in both directions when on.
- Signal levels up to the supplies are blocked in the off condition.
- iCMOS technology for low power consumption and high performance.
Applications
The ADG1221BRMZ is versatile and can be used in various applications, including:
- Multiplexing and demultiplexing in data acquisition systems.
- Audio and video signal routing.
- Medical and industrial instrumentation.
- Automotive and aerospace systems where high reliability is required.
Q & A
- What is the primary function of the ADG1221BRMZ?
The ADG1221BRMZ is a dual SPST switch designed for switching and multiplexing applications. - What is the supply voltage range for the ADG1221BRMZ?
The supply voltage range is ±15 V or +12 V. - What is the typical switch on resistance of the ADG1221BRMZ?
The typical switch on resistance is 45 Ω at VDD = ±15 V. - What is the charge injection of the ADG1221BRMZ?
The charge injection is typically 0.5 pC at VDD = ±15 V. - What is the operating temperature range of the ADG1221BRMZ?
The operating temperature range is -40°C to +125°C. - What package type is the ADG1221BRMZ available in?
The ADG1221BRMZ is available in a 10-Lead MSOP package. - Can the ADG1221BRMZ be used in high-precision applications?
Yes, due to its low capacitance and low charge injection, it is suitable for high-precision applications. - How do the switches in the ADG1221BRMZ conduct?
Each switch conducts equally well in both directions when on. - What happens to signal levels when the switches are off?
Signal levels up to the supplies are blocked in the off condition. - Is the ADG1221BRMZ suitable for automotive and aerospace applications?
Yes, it is suitable due to its high reliability and performance.
