Overview
The ADG5421BRMZ-RL7 is a high-performance, monolithic, complementary metal oxide semiconductor (CMOS) analog switch produced by Analog Devices Inc. This device is part of the ADG5421/ADG5423 family and is designed for industrial applications. It features two independent single-pole single-throw (SPST) switches that conduct equally well in both directions when on. The ADG5421BRMZ-RL7 is known for its ultralow on-resistance, on-resistance flatness, and robust construction, making it ideal for various signal processing tasks.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit | Test Conditions |
|---|---|---|---|---|
| On Resistance (RON) | 13.5 Ω | 26 Ω (at 25°C), 38 Ω (at -40°C to +85°C), 44 Ω (at -40°C to +125°C) | Ω | VS = 0 V to 10 V, IS = -10 mA |
| On-Resistance Match Between Channels (∆RON) | 0.1 Ω | 1 Ω (at 25°C), 1.5 Ω (at -40°C to +85°C), 1.6 Ω (at -40°C to +125°C) | Ω | VS = 0 V to 10 V, IS = -10 mA |
| On-Resistance Flatness (RFLAT) | 5.5 Ω | 6.8 Ω (at 25°C), 8.3 Ω (at -40°C to +85°C), 12.3 Ω (at -40°C to +125°C) | Ω | VS = 0 V to 10 V, IS = -10 mA |
| Channel On Leakage (ID, IS) | ±0.1 nA | ±0.4 nA (at 25°C), ±4 nA (at -40°C to +85°C), ±20 nA (at -40°C to +125°C) | nA | VS = VD = ±10 V |
| Input High Voltage (VINH) | 2.0 V | V | ||
| Input Low Voltage (VINL) | 0.8 V | V | ||
| Turn-On Time (tON) | 181 ns | 210 ns (at 25°C), 245 ns (at -40°C to +85°C), 280 ns (at -40°C to +125°C) | ns | RL = 300 Ω, CL = 35 pF |
| Turn-Off Time (tOFF) | 170 ns | 192 ns (at 25°C), 205 ns (at -40°C to +85°C), 220 ns (at -40°C to +125°C) | ns | RL = 300 Ω, CL = 35 pF |
Key Features
- Low On-Resistance: The ADG5421BRMZ-RL7 features an ultralow on-resistance of 13.5 Ω, ensuring minimal signal distortion.
- Dual-Supply Operation: It can operate from dual supplies up to ±22 V, making it suitable for bipolar analog signal applications.
- Latch-Up Immune Construction: Trench isolation guards against latch-up, preventing it even under severe overvoltage conditions.
- High ESD Rating: The device has a high ESD rating, enhancing its robustness in harsh environments.
- Break-Before-Make Action: Although specific to the ADG5423, this feature is relevant for multiplexer applications and ensures that one switch turns off before the other turns on.
Applications
- Data Acquisition: Ideal for data acquisition systems where low distortion and high accuracy are critical.
- Gain Switching: Suitable for gain switching applications due to its low on-resistance and on-resistance flatness.
- Multiplexer Applications: The break-before-make action in the ADG5423 variant makes it suitable for multiplexer applications.
- Industrial Automation: Its robust construction and ability to operate in harsh environments make it a good fit for industrial automation systems.
Q & A
- What is the typical on-resistance of the ADG5421BRMZ-RL7?
The typical on-resistance is 13.5 Ω.
- Can the ADG5421BRMZ-RL7 operate from dual supplies?
Yes, it can operate from dual supplies up to ±22 V.
- What is the turn-on time of the ADG5421BRMZ-RL7?
The turn-on time is typically 181 ns.
- Is the ADG5421BRMZ-RL7 latch-up immune?
Yes, it features trench isolation that guards against latch-up.
- What are the typical input high and low voltages for the ADG5421BRMZ-RL7?
The input high voltage is typically 2.0 V, and the input low voltage is typically 0.8 V.
- What is the maximum channel on leakage current?
The maximum channel on leakage current is ±20 nA at -40°C to +125°C.
- Can the ADG5421BRMZ-RL7 be used in multiplexer applications?
While the ADG5421 does not have break-before-make action, the ADG5423 variant does, making it suitable for multiplexer applications.
- What is the digital input capacitance of the ADG5421BRMZ-RL7?
The digital input capacitance is typically 6 pF.
- What are some common applications of the ADG5421BRMZ-RL7?
Common applications include data acquisition, gain switching, and industrial automation systems.
- Is the ADG5421BRMZ-RL7 available from major distributors?
Yes, it is available from distributors such as Digi-Key and SZComponents.
