Overview
The AD8170AN, produced by Analog Devices Inc., is a high-speed buffered multiplexer designed for various high-frequency applications. This device integrates wideband analog switches with a high-speed current feedback amplifier, making it suitable for demanding video and signal processing tasks. The AD8170AN is part of the AD8170 series, which includes 2:1 multiplexers, and is known for its fast channel switching, high output drive, and excellent video specifications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| -3 dB Bandwidth (Small Signal) | 250 MHz | |
| -3 dB Bandwidth (Large Signal) | 100 MHz | |
| Slew Rate | 1000 V/µs | |
| Settling Time to 0.1% | 15 ns | |
| Output Current | 50 mA | |
| Power Consumption | < 10 mA | |
| Input Resistance (+) Switch Input | 1.7 MΩ | |
| Input Capacitance (Channel Enabled) | 1.1 pF | |
| Output Voltage Swing (RL = 150 Ω) | ±3.5 V | |
| Differential Gain Error | 0.02% | |
| Differential Phase Error | 0.05° | |
| Crosstalk | -78 dB @ 5 MHz | |
| Disable Isolation | -88 dB @ 5 MHz | |
| Shutdown Isolation | -92 dB @ 5 MHz |
Key Features
- Fully buffered inputs and outputs
- Fast channel switching: 10 ns
- Internal current feedback output amplifier with programmable gain via external resistors
- High output drive: 50 mA
- High speed: 250 MHz bandwidth, G = +2; 1000 V/µs slew rate
- Fast settling time of 15 ns to 0.1%
- Low power consumption: < 10 mA
- Excellent video specifications: 0.1 dB gain flatness beyond 80 MHz, 0.02% differential gain error, 0.05° differential phase error
- Low crosstalk and high isolation: -78 dB crosstalk, -88 dB disable isolation, -92 dB shutdown isolation
- Fast output disable feature for connecting multiple devices (AD8174 only)
- Shutdown feature to reduce power consumption to 1.5 mA (AD8174 only)
Applications
- Pixel switching for “Picture-In-Picture” LCD and plasma displays
- Video routers
- High-speed signal processing and switching applications
- Video and audio multiplexing in various multimedia systems
Q & A
- What is the bandwidth of the AD8170AN?
The AD8170AN has a -3 dB bandwidth of 250 MHz for small signal inputs and 100 MHz for large signal inputs.
- How fast is the channel switching time of the AD8170AN?
The channel switching time is 10 ns.
- What is the slew rate of the AD8170AN?
The slew rate is greater than 1000 V/µs.
- What is the settling time of the AD8170AN to 0.1%?
The settling time to 0.1% is 15 ns.
- How much output current can the AD8170AN deliver?
The AD8170AN can deliver up to 50 mA of output current.
- What are the power consumption characteristics of the AD8170AN?
The device consumes less than 10 mA from a ±5 V supply.
- What are the key video specifications of the AD8170AN?
The device has 0.1 dB gain flatness beyond 80 MHz, 0.02% differential gain error, and 0.05° differential phase error.
- Does the AD8170AN have any special features for disabling or shutting down the output?
Yes, the AD8174 model (related to AD8170AN) has a fast output disable feature and a shutdown feature that reduces power consumption to 1.5 mA.
- What are typical applications for the AD8170AN?
Typical applications include pixel switching for “Picture-In-Picture” LCD and plasma displays, video routers, and other high-speed signal processing and switching applications.
- Is the AD8170AN RoHS compliant?
Yes, the AD8170AN is lead-free and RoHS compliant.
