Overview
The ADG452BN, 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. The ADG452BN is suitable for a wide range of applications due to its flat on-resistance profile over the full analog input range, ensuring excellent linearity and low distortion when switching audio and video signals.
Key Specifications
| Parameter | Typical Value | Maximum Value | Test Conditions |
|---|---|---|---|
| On-Resistance (RON) | 4.0 Ω | 5 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 |
| Source OFF Leakage (IS (OFF)) | ±0.02 nA | ±2.5 nA | VD = ±10 V, VS = ±10 V |
| Drain OFF Leakage (ID (OFF)) | ±0.02 nA | ±2.5 nA | VD = ±10 V, VS = ±10 V |
| Channel ON Leakage (ID, IS (ON)) | ±0.04 nA | ±5 nA | VD = VS = ±10 V |
| Input High Voltage (VINH) | 2.4 V | - | - |
| Input Low Voltage (VINL) | 0.8 V | - | - |
| Input Current (IINL or IINH) | 0.005 μA | ±0.5 μA | VIN = VINL or VINH |
| Turn-On Time (tON) | 70 ns | 220 ns | RL = 300 Ω, CL = 35 pF, VS = ±10 V |
| Turn-Off Time (tOFF) | 60 ns | 180 ns | RL = 300 Ω, CL = 35 pF, VS = ±10 V |
| Break-Before-Make Time Delay (tD) | 15 ns | 5 ns | RL = 300 Ω, CL = 35 pF, VS1 = VS2 = ±10 V (ADG453 only) |
| Charge Injection | 20 pC | - | VS = 0 V, RS = 0 Ω, CL = 1.0 nF |
Key Features
- Low On-Resistance: The ADG452BN features a low on-resistance of 4.0 Ω typical and 5 Ω maximum, ensuring minimal signal attenuation.
- High Switching Speed: Fast switching times with turn-on and turn-off times of 70 ns and 60 ns typical, respectively, make it suitable for high-speed applications.
- Extended Signal Range: The switches can operate over the full analog input range, extending to the supply rails, which is beneficial for applications requiring a wide signal range.
- Single and Dual Supply Operation: The device can be operated from a single supply (as low as 5.0 V) or a dual supply (±4.5 V to ±20 V), making it versatile for various application needs.
- Low Power Dissipation: CMOS construction ensures ultralow power dissipation, making it ideal for battery-powered and portable instruments.
- Break-Before-Make Switching: This feature prevents channel shorting when the switches are configured as a multiplexer (specific to ADG453).
- Low Charge Injection: Minimal charge injection of 20 pC reduces transients when switching digital inputs.
Applications
- Relay Replacement: The ADG452BN can replace mechanical relays in many applications due to its fast switching times and low on-resistance.
- Audio and Video Switching: Suitable for switching audio and video signals due to its flat on-resistance profile and high signal bandwidth.
- Automatic Test Equipment: Used in test equipment where fast and reliable switching is required.
- Precision Data Acquisition: Ideal for precision data acquisition systems where low distortion and high linearity are crucial.
- Battery-Powered Systems: Suitable for battery-powered systems due to its low power dissipation.
- Sample-and-Hold Systems: Used in sample-and-hold systems where fast switching and low on-resistance are necessary.
- Communication Systems: Applied in communication systems, including PBX and PABX systems.
- Avionics: Used in avionics due to its reliability and performance under various environmental conditions.
Q & A
- What is the typical on-resistance of the ADG452BN?
The typical on-resistance of the ADG452BN is 4.0 Ω.
- What are the turn-on and turn-off times of the ADG452BN?
The turn-on time is typically 70 ns, and the turn-off time is typically 60 ns.
- Can the ADG452BN operate on a single supply or dual supply?
Yes, the ADG452BN can operate on either a single supply (as low as 5.0 V) or a dual supply (±4.5 V to ±20 V).
- What is the charge injection of the ADG452BN?
The charge injection of the ADG452BN is typically 20 pC.
- What are some common applications of the ADG452BN?
The ADG452BN is commonly used in relay replacement, audio and video switching, automatic test equipment, precision data acquisition, battery-powered systems, sample-and-hold systems, communication systems, and avionics.
- What is the operating temperature range of the ADG452BN?
The operating temperature range of the ADG452BN is –40°C to +85°C.
- What are the input high and low voltage levels for the ADG452BN?
The input high voltage (VINH) is 2.4 V minimum, and the input low voltage (VINL) is 0.8 V maximum.
- Does the ADG452BN have break-before-make switching?
Yes, the ADG452BN (specifically the ADG453 model) features break-before-make switching to prevent channel shorting when configured as a multiplexer.
- What is the off-isolation of the ADG452BN?
The off-isolation of the ADG452BN is typically 65 dB at 1 MHz.
- What are the package options available for the ADG452BN?
The ADG452BN is available in various packages including 16-Lead PDIP, 16-Lead TSSOP, and 16-Lead SOIC.
