Overview
The ADG774A, specifically the ADG774ABCPZ-REEL, is a monolithic CMOS device produced by Analog Devices Inc. It comprises four 2:1 multiplexer/demultiplexers with high impedance outputs. This device is designed to operate with low power dissipation while offering high switching speeds and low on resistance. The ADG774A is suitable for applications requiring the switching of high-speed data signals due to its wide bandwidth and low distortion characteristics.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit | Test Conditions |
|---|---|---|---|---|
| Analog Signal Range | 0 to 2.5 V | V | ||
| On Resistance, RON | 2.2 Ω | 4 Ω | Ω | VD = 0 V to 1 V, IS = −10 mA |
| On Resistance Match Between Channels, ∆RON | 0.15 Ω | 0.5 Ω | Ω | VD = 0 V to 1 V, IS = −10 mA |
| On Resistance Flatness, RFLAT(ON) | 0.3 Ω | 0.6 Ω | Ω | VD = 0 V to 1 V, IS = −10 mA |
| Source Off Leakage, IS (OFF) | ±0.001 nA | nA | VD = 3 V/1 V | |
| Break-Before-Make Time Delay, tD | 3 ns | 1 ns min | ns | CL = 35 pF, RL = 50 Ω, VS1 = VS2 = 2 V |
| Off Isolation | −65 dB | dB | f = 10 MHz, RL = 50 Ω | |
| Channel-to-Channel Crosstalk | −70 dB | dB | f = 10 MHz, RL = 50 Ω | |
| Bandwidth −3 dB | 400 MHz | MHz | RL = 50 Ω | |
| Distortion | 0.3 % | % | RL = 100 Ω | |
| Charge Injection | 6 pC | pC | CL = 1 nF, VS = 0 V | |
| Power Supply Voltage | 3.3 V / 5 V | V | ||
| Quiescent Supply Current | 1 μA max | 0.001 μA typ | μA | VDD = 5.5 V, Digital inputs = 0 V or VDD |
| Temperature Range | −40°C to +85°C | °C |
Key Features
- Wide bandwidth data rates of >400 MHz, making it suitable for high-speed data signal switching.
- Low insertion loss and on resistance: 2.2 Ω typical.
- Low distortion: <0.3%.
- Single 3 V/5 V supply operation and TTL logic-compatible.
- Fast switching times: tON = 6 ns, tOFF = 3 ns.
- Break-before-make switching action to prevent channel shorting.
- Low quiescent supply current: 1 nA typical.
- Low leakage over temperature.
- Compact 3 mm × 3 mm LFCSP package.
Applications
The ADG774A is versatile and can be used in various applications, including:
- High-speed data acquisition systems.
- Audio and video switching.
- Medical imaging equipment.
- Industrial control systems.
- Telecommunication systems requiring high bandwidth and low distortion.
Q & A
- What is the ADG774A?
The ADG774A is a monolithic CMOS device comprising four 2:1 multiplexer/demultiplexers with high impedance outputs. - What is the bandwidth of the ADG774A?
The bandwidth of the ADG774A is typically 400 MHz. - What is the on resistance of the ADG774A?
The on resistance of the ADG774A is typically 2.2 Ω. - What is the switching time of the ADG774A?
The switching times are tON = 6 ns and tOFF = 3 ns. - Is the ADG774A TTL logic-compatible?
Yes, the ADG774A is TTL logic-compatible. - What is the power supply voltage range for the ADG774A?
The ADG774A operates from a single 3.3 V/5 V supply. - What is the quiescent supply current of the ADG774A?
The quiescent supply current is 1 μA maximum and 0.001 μA typical. - What is the temperature range for the ADG774A?
The temperature range is −40°C to +85°C. - What package options are available for the ADG774A?
The ADG774A is available in 16-Lead LFCSP and QSOP packages. - What are some common applications of the ADG774A?
Common applications include high-speed data acquisition systems, audio and video switching, medical imaging equipment, and telecommunication systems.
