Overview
The ADG781BCPZ is a monolithic CMOS device produced by Analog Devices Inc., featuring four independently selectable single-pole/single-throw (SPST) switches. This component is designed for precision signal routing and is ideal for use in various applications requiring high-bandwidth and low on-resistance switching. The ADG781BCPZ operates from a single supply voltage ranging from 1.8 V to 5.5 V, making it suitable for battery-powered instruments and modern DACs and ADCs. Its compact 20-lead chip scale package (CSP) and surface mount technology ensure a small footprint on PCBs, while its broad temperature range of -40°C to 85°C allows for use in diverse environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Supply, Single (V+) | 1.8 to 5.5 | V |
| Number of Circuits | 4 | - |
| Multiplexer/Demultiplexer Circuit | 1:1 | - |
| On-State Resistance (Max) | 4 | Ω |
| Switch Time (Ton, Toff) (Typ) | 11 ns, 6 ns | ns |
| Bandwidth (-3 dB) | 200 | MHz |
| Channel Capacitance (CS(off), CD(off)) | 10 pF | pF |
| Leakage Current (IS(off)) (Max) | 100 pA | pA |
| Crosstalk | -90 dB @ 10 MHz | dB |
| Charge Injection | 3 pC | pC |
| Operating Temperature | -40°C to 85°C | °C |
| Package | 20-LFCSP-WQ (4x4) | - |
Key Features
- Low On-Resistance: Maximum of 4 Ω to enhance signal transmission quality.
- High Bandwidth: -3 dB bandwidth of 200 MHz for superior signal fidelity.
- Fast Switching Times: Typical switch-on time (Ton) of 11 ns and switch-off time (Toff) of 6 ns.
- Low Charge Injection: 3 pC for minimal signal disturbance.
- Low Leakage Current: Maximum of 100 pA to maintain signal strength.
- Excellent Crosstalk Attenuation: -90 dB at 10 MHz for clear signal paths.
- Broad Voltage Supply Range: 1.8 V to 5.5 V for flexible usage across different power setups.
- Compact Package: 20-lead chip scale package (CSP) for a small footprint on PCBs.
- Wide Operating Temperature Range: -40°C to 85°C for use in diverse environments).
Applications
- High-Frequency Data Acquisition Systems: Suitable for high-speed data acquisition due to its high bandwidth and fast switching times.
- Communications Equipment: Ideal for signal routing in communication devices).
- Audio and Video Switching Applications: Used in audio and video signal switching due to its low on-resistance and high bandwidth).
- Automated Test Equipment: Utilized in test equipment for precise signal routing).
- Precision Instrumentation: Suitable for precision instruments requiring high signal fidelity and low distortion).
Q & A
- What is the voltage supply range of the ADG781BCPZ?
The ADG781BCPZ operates from a single supply voltage ranging from 1.8 V to 5.5 V).
- How many independent switch circuits does the ADG781BCPZ have?
The ADG781BCPZ contains four independent single-pole/single-throw (SPST) switch circuits).
- What is the typical switch-on time (Ton) and switch-off time (Toff) of the ADG781BCPZ?
The typical switch-on time (Ton) is 11 ns and the typical switch-off time (Toff) is 6 ns).
- What is the maximum on-state resistance of the ADG781BCPZ?
The maximum on-state resistance is 4 Ω).
- What is the bandwidth of the ADG781BCPZ?
The -3 dB bandwidth is 200 MHz).
- What is the operating temperature range of the ADG781BCPZ?
The operating temperature range is -40°C to 85°C).
- What is the package type of the ADG781BCPZ?
The package type is 20-LFCSP-WQ (4x4)).
- Is the ADG781BCPZ lead-free and RoHS compliant?
Yes, the ADG781BCPZ is lead-free and RoHS compliant).
- What are some common applications of the ADG781BCPZ?
Common applications include high-frequency data acquisition systems, communications equipment, audio and video switching, automated test equipment, and precision instrumentation).
- What is the crosstalk attenuation of the ADG781BCPZ at 10 MHz?
The crosstalk attenuation is -90 dB at 10 MHz).
