Overview
The ADG452BR, produced by Analog Devices Inc., is a monolithic CMOS device that comprises four independently selectable single-pole single-throw (SPST) switches. These switches are designed on an enhanced LC2MOS process, which ensures low power dissipation while providing high switching speed and low on-resistance. This makes the ADG452BR ideal for applications requiring fast switching times and minimal signal distortion.
The device is pin-compatible with earlier models such as the ADG411, ADG412, ADG413, ADG431, ADG432, and ADG433, making it a suitable upgrade for existing designs. The ADG452BR operates over a wide temperature range of -40°C to +85°C and is available in various package options, including the 16-Lead SOIC (Small Outline Integrated Circuit) package.
Key Specifications
| Parameter | Typical Value | Maximum Value | Test Conditions |
|---|---|---|---|
| On-Resistance (RON) | 4.0 Ω | 5.0 Ω | VD = -10 V to +10 V, IS = -10 mA |
| On-Resistance Match Between Channels (∆RON) | 0.1 Ω | 0.5 Ω | VD = ±10 V, IS = -10 mA |
| On-Resistance Flatness (RFLAT(ON)) | 0.2 Ω | 0.5 Ω | VD = -5 V, 0 V, +5 V, IS = -10 mA |
| Channel ON Leakage (ID, IS) | ±0.04 nA | ±1 nA | VD = VS = ±10 V |
| Input High Voltage (VINH) | 2.4 V | ||
| Input Low Voltage (VINL) | 0.8 V | ||
| Switching Time (tON, tOFF) | tON: 70 ns, tOFF: 60 ns | tON: 180 ns, tOFF: 140 ns | RL = 300 Ω, CL = 35 pF, VS = ±10 V |
| Break-Before-Make Time Delay (tD) | 15 ns | 5 ns min | RL = 300 Ω, CL = 35 pF, VS1 = VS2 = +10 V |
| Charge Injection | 20 pC | VS = 0 V, RS = 0 Ω, CL = 1.0 nF | |
| Operating Temperature | -40°C to +85°C | ||
| Package | 16-Lead SOIC |
Key Features
- Low On-Resistance: The ADG452BR features a low on-resistance of 4.0 Ω typical, ensuring minimal signal attenuation.
- Fast Switching Times: With switching times of 70 ns (tON) and 60 ns (tOFF), this device is suitable for high-speed applications.
- Extended Signal Range: The signal range extends to the supply rails, allowing for single-supply operation from 5.0 V to 12 V and dual-supply operation from ±4.5 V to ±20 V.
- Break-Before-Make Switching: This feature prevents channel shorting when the switches are configured as a multiplexer, specifically in the ADG453 model.
- Low Charge Injection: The device has low charge injection of 20 pC, minimizing transients when switching digital inputs.
- Low Power Dissipation: The CMOS construction ensures ultralow power dissipation, making it ideal for battery-powered and portable instruments.
Applications
- Relay Replacement: The ADG452BR can replace mechanical relays in many applications due to its fast switching times and low on-resistance.
- Audio and Video Switching: Its flat on-resistance profile over the full analog input range makes it excellent for switching audio and video signals with minimal distortion.
- Automatic Test Equipment: The device is suitable for use in automatic test equipment due to its high signal bandwidth and fast switching times.
- Precision Data Acquisition: It is used in precision data acquisition systems where low on-resistance and fast switching are critical.
- Battery-Powered Systems: The low power dissipation makes it ideal for battery-powered systems and portable instruments.
- Communication Systems: The ADG452BR is also used in communication systems, including PBX and PABX systems, and avionics.
Q & A
- What is the typical on-resistance of the ADG452BR?
The typical on-resistance of the ADG452BR is 4.0 Ω.
- What are the switching times for the ADG452BR?
The switching times are typically 70 ns for tON and 60 ns for tOFF, with maximum values of 180 ns and 140 ns respectively.
- What is the operating temperature range of the ADG452BR?
The operating temperature range is -40°C to +85°C.
- What package options are available for the ADG452BR?
The ADG452BR is available in a 16-Lead SOIC package among others.
- Can the ADG452BR be used in single-supply and dual-supply applications?
Yes, it can operate from a single supply from 5.0 V to 12 V and from a dual supply ranging from ±4.5 V to ±20 V.
- What is the charge injection of the ADG452BR?
The charge injection is typically 20 pC.
- Is the ADG452BR suitable for audio and video switching?
Yes, it is suitable due to its flat on-resistance profile and high signal bandwidth, ensuring minimal signal distortion.
- What are some common applications of the ADG452BR?
Common applications include relay replacement, audio and video switching, automatic test equipment, precision data acquisition, battery-powered systems, and communication systems.
- Does the ADG452BR have break-before-make switching?
No, the break-before-make switching feature is specific to the ADG453 model, not the ADG452BR.
- How many switches are included in the ADG452BR?
The ADG452BR includes four independently selectable switches.
