Features and Benefits
- 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 Resistor(s)
- High Speed
250 MHz Bandwidth, G = +2
1000 V/µs Slew Rate
Fast Settling Time of 15 ns to 0.1%
- Low Power: < 10 mA
- Excellent Video Specifications
- (RL = 150 O, G = +2)
- Gain Flatness of 0.1 dB Beyond 80 MHz
0.02% Differential Gain Error
0.05° Differential Phase Error
- Low Crosstalk of -78 dB @ 5 MHz
- High Disable Isolation of -88 dB @ 5 MHz
- High Shutdown Isolation of -92 dB @ 5 MHz
- Low Cost
The AD8170(2:1) and AD8174(4:1) are very high speed buffered multiplexers. These multiplexers offer an internal current feedback output amplifier whose gain can be programmed via external resistors and is capable of delivering 50 mA of output current. They offer -3dB signal bandwidth of 250 MHz and slew rate of greater than than 1000 V/µs. Additionally, the AD8170 and AD8174 have excellent video specifications with low differential gain and differential phase error of 0.02% and 0.05° and 0.1 dB flatness out to 85 MHz. With a low 70 dB of crosstalk and better than 82 dB isolation, these devices are useful in many high speed applications. These are low power devices consuming only 9.7 mA from a ±5 V supply.
The AD8174 offers a high speed disable feature allowing the output to be put into a high impedance state for cascading stages so that the off channels do not load the output bus. Additionally, the AD8174 can be shut down (SD) when not in use to minimize power consumption (IS = 1.5 mA). These products will be offered in 8-lead and 14-lead PDIP and SOIC packages.
An evaluation board is available for this product and may be ordered using the following product number: AD8170-EB and AD8174-EB. Schematic and layout for this evaluation board is contained in the product datasheet.
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
The AD8174 is a high speed buffered multiplexer that offers an internal current feedback output amplifier whose gain is programmed via external resistors and is capable of delivering 50 mA of output current. The AD8174 offers −3 dB signal bandwidth of 250 MHz and a slew rate greater than 1000 V/μs. The AD8174 has excellent video specifications with low differential gain of 0.02%, low differential phase error of 0.05°, and 0.1 dB flatness out to 85 MHz. With a low −78 dB at 5 MHz of crosstalk and better than −88 dB at 5 MHz isolation, the AD8174 is useful in many high speed applications. It is also a low power device consuming only 9.7 mA from a ±5 V supply.
The AD8174 offers a high speed disable feature that allows the user to put the output into a high impedance state for cascading stages so that the off channels do not load the output bus. In addition, the AD8174 can be shut down when not in use to minimize power consumption (IS = 1.5 mA). The AD8174 is available in 14-lead PDIP and 14-lead SOIC packages.
Full details about the device are available in the AD8174 data sheet, which should be consulted when using the AD8174-EB.
Tools & Simulations
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.