Overview
The AD8170AR-REEL7, produced by Analog Devices Inc., is a high-speed, 2:1 multiplexer integrated circuit that combines wideband analog switches with a high-speed current feedback amplifier. This device is designed for applications requiring fast channel switching and high output drive capabilities. The AD8170 is part of the AD8170/AD8174 family, which offers flexible gain setting via external resistors 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 | - |
| Rise and Fall Time (10% to 90%) | 1.6 ns | - |
| Output Current | 50 mA | - |
| Power Supply Range | ±4 V to ±6 V | - |
| Power Supply Rejection Ratio (PSRR) | 55 dB to 66 dB | - |
| Differential Gain Error | 0.02% | - |
| Differential Phase Error | 0.05° | - |
| Crosstalk | -78 dB @ 5 MHz | - |
| Disable Isolation | -88 dB @ 5 MHz (AD8174 only) | - |
| Shutdown Isolation | -92 dB @ 5 MHz (AD8174 only) | - |
Key Features
- Fully buffered inputs and outputs
- Fast channel switching: 10 ns
- Internal current feedback output amplifier
- High output drive: 50 mA
- Flexible gain setting via external resistors
- High speed 250 MHz bandwidth, G = +2
- Fast settling time of 15 ns to 0.1%
- Low power: < 10 mA
- Excellent video specifications (RL = 150 Ω, G = +2)
- Gain flatness of 0.1 dB beyond 80 MHz
- Low crosstalk and high disable/shutdown isolation (AD8174 only)
Applications
- Pixel switching for “Picture-In-Picture” LCD and plasma displays
- Video routers
- High-speed video and imaging systems
Q & A
- What is the primary function of the AD8170AR-REEL7?
The AD8170AR-REEL7 is a 2:1 multiplexer that integrates wideband analog switches with a high-speed current feedback amplifier.
- What is the bandwidth of the AD8170AR-REEL7?
The device has a -3 dB bandwidth of 250 MHz for small signal and 100 MHz for large signal.
- How fast is the channel switching time of the AD8170AR-REEL7?
The channel switching time is 10 ns.
- What is the slew rate of the AD8170AR-REEL7?
The slew rate is greater than 1000 V/µs.
- What is the settling time to 0.1% for the AD8170AR-REEL7?
The settling time to 0.1% is 15 ns.
- What is the output current capability of the AD8170AR-REEL7?
The device can deliver up to 50 mA of output current.
- What are the typical power supply requirements for the AD8170AR-REEL7?
The power supply range is ±4 V to ±6 V.
- What are the differential gain and phase errors of the AD8170AR-REEL7?
The differential gain error is 0.02%, and the differential phase error is 0.05° at 3.58 MHz.
- Does the AD8170AR-REEL7 have any special features for disabling or shutting down the device?
Yes, the AD8174 version (not the AD8170) has a fast output disable feature and a shutdown feature that reduces power to 1.5 mA.
- What are some common applications for the AD8170AR-REEL7?
Common applications include pixel switching for “Picture-In-Picture” LCD and plasma displays, video routers, and high-speed video and imaging systems.
