Overview
The ADG1422BRMZ from Analog Devices Inc. is a dual single-pole/single-throw (SPST) analog switch, part of the ADG1421/ADG1422/ADG1423 family. This device is manufactured using the iCMOS (industrial CMOS) process, which ensures low power consumption and high performance. The ADG1422BRMZ is particularly noted for its flat on-resistance profile over the full analog input range, making it ideal for applications requiring low distortion and high linearity, such as audio and video signal routing.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Analog Signal Range | 0 V to VDD | V | |
| On Resistance, RON | 2.4 Ω typ | Ω | VS = 0 V to 10 V, IS = −10 mA |
| Input High Voltage, VINH | 2.0 V min | V | |
| Input Low Voltage, VINL | 0.8 V max | V | |
| Input Current, IINL or IINH | 0.005 µA typ | µA | VIN = VGND or VDD |
| Digital Input Capacitance, CIN | 4 pF typ | pF | |
| Turn-On Time, tON | 180 ns typ | ns | RL = 300 Ω, CL = 35 pF |
| Turn-Off Time, tOFF | 130 ns typ | ns | RL = 300 Ω, CL = 35 pF |
| Break-Before-Make Time Delay (ADG1423 Only) | 70 ns typ | ns | RL = 300 Ω, CL = 35 pF |
| Charge Injection | 30 pC typ | pC | VS = 6 V, RS = 0 Ω, CL = 1 nF |
| Off Isolation | −60 dB typ | dB | RL = 50 Ω, CL = 5 pF, f = 1 MHz |
| Package | 10-MSOP, 10-TFSOP |
Key Features
- Low On-Resistance: The ADG1422BRMZ features a low on-resistance of 2.4 Ω, ensuring minimal signal attenuation and distortion.
- Flat On-Resistance Profile: The on-resistance profile is very flat over the full analog input range, making it suitable for applications requiring high linearity.
- High Isolation and Low Charge Injection: High off-isolation and low charge injection make this switch ideal for applications where signal integrity is crucial.
- Low Power Consumption: The device operates with very low power consumption, making it suitable for battery-powered systems.
- Dual Supply Operation: The switch can operate with single or dual supplies ranging from ±4.5 V to ±16.5 V.
Applications
- Automatic Test Equipment: Ideal for switching signals in test and measurement systems.
- Data Acquisition Systems: Used in data acquisition systems to switch analog signals.
- Relay Replacements: Can replace mechanical relays in various applications due to its low power consumption and high reliability.
- Battery-Powered Systems: Suitable for battery-powered systems due to its low power consumption.
- Audio and Video Signal Routing: Used in audio and video systems to route signals with minimal distortion.
- Communication Systems: Used in communication systems for signal switching and routing.
Q & A
- What is the typical on-resistance of the ADG1422BRMZ?
The typical on-resistance of the ADG1422BRMZ is 2.4 Ω.
- What are the package options for the ADG1422BRMZ?
The ADG1422BRMZ is available in 10-MSOP and 10-TFSOP packages.
- What is the operating voltage range for the ADG1422BRMZ?
The device can operate with single or dual supplies ranging from ±4.5 V to ±16.5 V.
- What is the turn-on time for the ADG1422BRMZ?
The turn-on time is typically 180 ns with RL = 300 Ω and CL = 35 pF.
- What is the charge injection of the ADG1422BRMZ?
The charge injection is typically 30 pC with VS = 6 V, RS = 0 Ω, and CL = 1 nF.
- What are some common applications for the ADG1422BRMZ?
Common applications include automatic test equipment, data acquisition systems, relay replacements, battery-powered systems, and audio/video signal routing.
- How does the ADG1422BRMZ differ from the ADG1421?
The ADG1422BRMZ differs from the ADG1421 in that the digital control logic is inverted; the ADG1422 switches are turned on with Logic 0 on the appropriate control input.
- What is the off-isolation of the ADG1422BRMZ?
The off-isolation is typically −60 dB with RL = 50 Ω, CL = 5 pF, and f = 1 MHz.
- Is the ADG1422BRMZ suitable for high-frequency applications?
Yes, the device is suitable for high-frequency applications due to its low on-resistance and high off-isolation.
- Does the ADG1422BRMZ support break-before-make switching?
No, the ADG1422BRMZ does not support break-before-make switching; this feature is available in the ADG1423 model.
