Overview
The ADG620BRM from Analog Devices Inc. is a monolithic, CMOS single-pole double-throw (SPDT) switch. This device is part of the ADG619/ADG620 series, known for its low on-resistance and high switching speeds. The ADG620BRM is particularly notable for its make-before-break switching action, which prevents momentary shorting when switching channels. It is designed to operate with both single and dual supply voltages, making it versatile for various applications.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit | Conditions |
|---|---|---|---|---|
| On Resistance (RON) | 4 Ω | 6.5 Ω | Ω | VS = 0 V to 4.5 V, IDS = −10 mA |
| On-Resistance Flatness (RFLAT (ON)) | 0.5 Ω | 0.8 Ω | Ω | VS = 0 V to 4.5 V, IDS = −10 mA |
| Switch Time (tON, tOFF) | tON: 50 ns, tOFF: 210 ns | tON: 110 ns, tOFF: 420 ns | ns | RL = 300 Ω, CL = 35 pF |
| Break-Before-Make Time Delay (tBBM) | 70 ns | 10 ns min, 100 ns max | ns | RL = 300 Ω, CL = 35 pF (ADG619 only) |
| Make-Before-Break Time Delay (tMBB) | 170 ns | 10 ns min | ns | RL = 300 Ω, CL = 35 pF (ADG620 only) |
| Charge Injection | 6 pC | 110 pC | pC | VS = 0 V, RS = 0 Ω, CL = 1 nF |
| Off Isolation | -67 dB | -67 dB | dB | RL = 50 Ω, CL = 5 pF, f = 1 MHz |
| Channel-to-Channel Crosstalk | -67 dB | -67 dB | dB | RL = 50 Ω, CL = 5 pF, f = 1 MHz |
| -3 dB Bandwidth | 190 MHz | 190 MHz | MHz | RL = 50 Ω, CL = 5 pF |
| Supply Voltage (Single/Dual) | 2.7 V to 5.5 V / ±2.7 V to ±5.5 V | 2.7 V to 5.5 V / ±2.7 V to ±5.5 V | V | |
| Operating Temperature | -40°C to +85°C | -40°C to +85°C | °C | |
| Package/Case | 8-TSSOP, 8-MSOP | 8-TSSOP, 8-MSOP |
Key Features
- Low On Resistance: The ADG620BRM features a low on-resistance of 4 Ω, which is matched to within 0.7 Ω between channels, ensuring minimal signal loss and distortion.
- Fast Switching Times: With typical switch times of 50 ns for tON and 210 ns for tOFF, this device is suitable for high-speed applications.
- Make-Before-Break Action: The ADG620BRM exhibits make-before-break switching action, preventing momentary shorting when switching channels.
- Low Power Dissipation: The device consumes very low power, typically less than 0.1 μW, making it ideal for battery-powered systems.
- TTL-/CMOS-Compatible Inputs: The switch is compatible with both TTL and CMOS logic levels, enhancing its versatility in various digital systems.
- Rail-to-Rail Operation: The ADG620BRM operates over a wide voltage range, from 2.7 V to 5.5 V single supply or ±2.7 V to ±5.5 V dual supply.
Applications
- Automatic Test Equipment: Ideal for routing signals in test equipment due to its fast switching times and low on-resistance.
- Power Routing: Suitable for managing power distribution in complex systems.
- Communication Systems: Used in communication systems for signal routing and switching.
- Data Acquisition Systems: Employed in data acquisition systems to manage signal paths efficiently.
- Sample-and-Hold Systems: Useful in sample-and-hold circuits where precise signal control is necessary.
- Avionics: Applicable in avionics for reliable signal switching.
- Relay Replacement: Can replace mechanical relays in many applications due to its reliability and low power consumption.
- Battery-Powered Systems: Suitable for battery-powered systems due to its low power dissipation.
Q & A
- What is the typical on-resistance of the ADG620BRM?
The typical on-resistance of the ADG620BRM is 4 Ω. - What is the switching action of the ADG620BRM?
The ADG620BRM exhibits make-before-break switching action. - What are the supply voltage ranges for the ADG620BRM?
The ADG620BRM can operate with a single supply voltage of 2.7 V to 5.5 V or a dual supply voltage of ±2.7 V to ±5.5 V. - What is the typical bandwidth of the ADG620BRM?
The typical bandwidth of the ADG620BRM is 190 MHz. - What are the typical switch times for the ADG620BRM?
The typical switch times are 50 ns for tON and 210 ns for tOFF. - What is the operating temperature range of the ADG620BRM?
The operating temperature range is -40°C to +85°C. - What are the common applications of the ADG620BRM?
Common applications include automatic test equipment, power routing, communication systems, data acquisition systems, and more. - What package types are available for the ADG620BRM?
The ADG620BRM is available in 8-TSSOP and 8-MSOP packages. - Is the ADG620BRM compatible with TTL and CMOS logic levels?
Yes, the ADG620BRM is compatible with both TTL and CMOS logic levels. - What is the power consumption of the ADG620BRM?
The power consumption is typically less than 0.1 μW.
