The Simple Way to Match to a High-Speed ADC Input

High-speed, high-resolution ADCs are critical components in communications and instrumentation applications. The interface between the final amplifier of the signal chain and the input pins of the ADC is challenging and time-consuming. Yet it is critical to the performance of the entire system. Traditionally, this requires impedance matching, developing an anti-alias filter and multiple iterations of the board layout to get everything right.

Linear Technology’s LTM9001 greatly simplifies this part of the signal chain design. The ADC, the amplifier, all of the bypass capacitors and especially the matching and filter network are all integrated.

Play this video

References

Datasheets
LTM9001 - 16-Bit IF/Baseband Receiver Subsystem
LTM9002 - 14-Bit Dual-Channel IF/ Baseband Receiver Subsystem

LT Magazine
March 2008 - Complete IF Receiver Has 16-Bit, 130Msps ADC, Fixed-Gain Amplifier and Antialias Filter in 11.25mm × 11.25mm μModule Package

Product Family
Signal Chain µModules