Overview
The ADG819BRMZ-REEL7, produced by Analog Devices Inc., is a monolithic, CMOS, single-pole, double-throw (SPDT) analog switch. This device is designed on a submicron process, which ensures low power dissipation while providing high switching speed, low on-resistance, and low leakage currents. The ADG819 is particularly suited for battery-powered, portable instruments due to its low power consumption and operating supply range of 1.8 V to 5.5 V. It is available in various packages, including the 8-lead MSOP package, making it ideal for space-constrained applications.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit | Test Conditions |
|---|---|---|---|---|
| Analog Signal Range | 0 V to VDD | V | ||
| On Resistance (RON) | 0.5 Ω | 0.8 Ω | Ω | VS = 0 V to VDD, IS = 100 mA |
| On Resistance Match Between Channels (ΔRON) | 0.06 Ω | 0.12 Ω | Ω | VS = 0 V to VDD, IS = 100 mA |
| On Resistance Flatness (RFLAT(ON)) | 0.1 Ω | 0.25 Ω | Ω | VS = 0 V to VDD, IS = 100 mA |
| Source Off Leakage (IS (Off)) | ±0.01 nA | nA | VS = 4.5 V/1 V, VD = 1 V/4.5 V | |
| Operating Supply Range | 1.8 V to 5.5 V | V | ||
| Switching Time (tON, tOFF) | ~100 ns | ns | VDD = 5 V, RL = 50 Ω, CL = 35 pF |
Key Features
- Low Power Consumption: The ADG819 has very low power consumption, making it ideal for battery-powered devices.
- Wide Operating Supply Range: Operates from 1.8 V to 5.5 V, making it versatile for various applications.
- High Switching Speed: Fast switching times with typical values around 100 ns.
- Low On Resistance: Typical on-resistance of 0.5 Ω, ensuring minimal signal attenuation.
- Break-Before-Make Switching Action: Prevents momentary shorting when switching channels.
- Compact Packaging: Available in 6-lead SOT-23, 8-lead MSOP, and 6-ball WLCSP packages, ideal for space-constrained applications.
- TTL-/CMOS-Compatible Inputs: Compatible with both TTL and CMOS logic levels.
Applications
- Power Routing: Suitable for routing power in various systems.
- Battery-Powered Systems: Ideal for portable, battery-powered instruments.
- Communication Systems: Used in cellular phones, modems, and other communication devices.
- Data Acquisition Systems: Employed in data acquisition and measurement systems.
- PCMCIA Cards and Hard Drives: Used in PCMCIA cards and hard drive applications.
- Relay Replacement: Can replace mechanical relays in many applications.
Q & A
- What is the operating supply range of the ADG819?
The ADG819 operates from 1.8 V to 5.5 V.
- What are the typical on-resistance and on-resistance flatness values for the ADG819?
The typical on-resistance is 0.5 Ω, and the on-resistance flatness is 0.1 Ω.
- What are the switching times for the ADG819?
The typical switching times (tON, tOFF) are around 100 ns.
- Does the ADG819 exhibit break-before-make or make-before-break switching action?
The ADG819 exhibits break-before-make switching action.
- In what packages is the ADG819 available?
The ADG819 is available in 6-lead SOT-23, 8-lead MSOP, and 6-ball WLCSP packages.
- What are some common applications of the ADG819?
Common applications include power routing, battery-powered systems, communication systems, data acquisition systems, PCMCIA cards, hard drives, and relay replacement.
- Is the ADG819 compatible with TTL and CMOS logic levels?
Yes, the ADG819 is compatible with both TTL and CMOS logic levels.
- What is the leakage current specification for the ADG819?
The source off leakage current is typically ±0.01 nA.
- How does the ADG819 handle momentary shorting during channel switching?
The ADG819 prevents momentary shorting through its break-before-make switching action.
- What is the physical size of the ADG819 in its smallest package?
In its smallest package (6-ball WLCSP), the ADG819 occupies an area of 1.14 mm × 2.18 mm.
