Overview
The ADG1421BRMZ, produced by Analog Devices Inc., is a dual single-pole/single-throw (SPST) analog switch. This component is part of the ADG1421/ADG1422/ADG1423 family and is known for its low on-resistance, minimal distortion, and ultralow power dissipation. The ADG1421BRMZ is particularly suited for applications requiring high linearity and low distortion, such as audio and video signal routing.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| On Resistance | 2.4 Ω max at 25°C | |
| Supply Voltage | ±5 V to ±16.5 V | Dual supply |
| Digital Input High Voltage | 2.0 V min | |
| Digital Input Low Voltage | 0.8 V max | |
| Turn-On Time (tON) | 180 ns typ, 340 ns max | RL = 300 Ω, CL = 35 pF, VS = 8 V |
| Turn-Off Time (tOFF) | 130 ns typ, 235 ns max | RL = 300 Ω, CL = 35 pF, VS = 8 V |
| Break-Before-Make Time Delay (tD) | 70 ns typ, 48 ns min (ADG1423 only) | RL = 300 Ω, CL = 35 pF, VS1 = VS2 = 8 V |
| Charge Injection | 30 pC typ | VS = 6 V, RS = 0 Ω, CL = 1 nF |
| Off Isolation | −60 dB typ | RL = 50 Ω, CL = 5 pF, f = 1 MHz |
Key Features
- Low on-resistance of 2.4 Ω maximum at 25°C, ensuring minimal signal attenuation.
- Flat on-resistance profile over the full analog input range, providing excellent linearity and low distortion.
- 3 V logic-compatible digital inputs with no VL logic power supply required.
- Ultralow power dissipation due to iCMOS construction, making it ideal for portable and battery-powered instruments.
- Available in 10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP packages.
Applications
- Automatic test equipment
- Data acquisition systems
- Relay replacements
- Battery-powered systems
- Sample-and-hold systems
- Audio signal routing
- Video signal routing
- Communication systems
Q & A
- What is the maximum on-resistance of the ADG1421BRMZ at 25°C?
The maximum on-resistance is 2.4 Ω at 25°C. - What are the supply voltage ranges for the ADG1421BRMZ?
The supply voltage ranges from ±5 V to ±16.5 V. - Is the ADG1421BRMZ suitable for audio signal routing?
Yes, it is suitable due to its flat on-resistance profile and minimal distortion. - What are the typical turn-on and turn-off times for the ADG1421BRMZ?
The typical turn-on time (tON) is 180 ns, and the typical turn-off time (tOFF) is 130 ns. - What is the charge injection of the ADG1421BRMZ?
The charge injection is typically 30 pC. - What is the off isolation of the ADG1421BRMZ?
The off isolation is typically −60 dB. - What are the package options for the ADG1421BRMZ?
The component is available in 10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP packages. - Is the ADG1421BRMZ suitable for battery-powered systems?
Yes, it is suitable due to its ultralow power dissipation. - What is the break-before-make time delay for the ADG1423 (relevant to ADG1421BRMZ family)?
The break-before-make time delay is typically 70 ns. - What are the digital input voltage levels for the ADG1421BRMZ?
The digital input high voltage is 2.0 V min, and the digital input low voltage is 0.8 V max.
