Overview
The ADG431BR is a high-performance, low-power, quad SPST (single-pole, single-throw) analog switch produced by Analog Devices Inc. It is designed on an enhanced LC2MOS process, which provides low power dissipation, high switching speed, and low on-resistance. This device is particularly suited for applications requiring excellent signal integrity and fast switching times.
The ADG431BR features four independently selectable switches, each conducting equally well in both directions when ON and blocking signal levels up to the supplies when OFF. The device is compatible with TTL/CMOS logic and exhibits break-before-make switching action, making it ideal for multiplexer applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Circuits | 4 | - |
| Voltage Supply (Dual) | ±15 | V |
| Voltage Supply (Single) | 12 | V |
| On-State Resistance (Max) | 24 | Ω |
| Charge Injection | 5 | pC |
| Switch Time (Ton, Toff) (Max) | 90 ns, 60 ns | ns |
| Leakage Current (IS(off)) (Max) | 250 | pA |
| Channel-to-Channel Matching (ΔRon) | 1.2 | Ω |
| Crosstalk | -85 | dB @ 1 MHz |
| Operating Temperature Range | -40°C to 85°C | - |
| Package Type | 16-SOIC | - |
Key Features
- Low on-resistance (24Ω max) ensuring minimal signal distortion.
- Low charge injection (5 pC) for minimum transients when switching digital inputs.
- Fast switching speed (90 ns max on, 60 ns max off) suitable for high-speed data acquisition.
- High channel-to-channel matching (1.2Ω) for consistent performance.
- Low leakage current (250 pA max) to minimize power consumption.
- Low crosstalk (-85 dB @ 1 MHz) to ensure signal integrity.
- Wide supply voltage range (±15V dual supply or 12V single supply) for flexibility in different applications.
- Wide operating temperature range (-40°C to 85°C) making it suitable for various environments.
- Break-before-make switching action to prevent channel shorting in multiplexer applications.
- TTL/CMOS compatible digital control logic.
Applications
- Multiplexed data acquisition systems.
- Programmable-gain amplifier circuits.
- Signal conditioning applications.
- Audio and video switching.
- Automatic test equipment.
- Precision data acquisition.
- Battery-powered systems.
- Sample hold systems.
- Communication systems.
Q & A
- What is the ADG431BR?
The ADG431BR is a high-performance, low-power, quad SPST analog switch produced by Analog Devices Inc.
- What is the on-state resistance of the ADG431BR?
The on-state resistance is up to 24Ω maximum.
- What are the switching times for the ADG431BR?
The switch-on time (Ton) is up to 90 ns, and the switch-off time (Toff) is up to 60 ns.
- What is the charge injection of the ADG431BR?
The charge injection is 5 pC.
- What are the power supply options for the ADG431BR?
The device can operate with a dual supply of ±15V or a single supply of 12V.
- What is the operating temperature range of the ADG431BR?
The operating temperature range is -40°C to 85°C.
- What package type is the ADG431BR available in?
The ADG431BR is available in a 16-SOIC package.
- Is the ADG431BR RoHS compliant?
- What are some typical applications of the ADG431BR?
Typical applications include multiplexed data acquisition systems, programmable-gain amplifier circuits, and signal conditioning applications.
- Does the ADG431BR exhibit break-before-make switching action?
