Ultra Low Power Broadband 8 to 14-Bit
Data Acquisition Platform
ISLA112P50/55210EV1Z Evaluation Daughter Board
New Evaluation Board Featuring Intersil's High Performance Amplifier (ISL55210)
Driving Intersil's High Performance, Low Power 500MSPS 12bit ADC (ISLA112P50)
Quickly Evaluate the Amplifier/Filter/ADC Signal Chain's Total Performance in your Application
Mating to Intersil's ADC KMB-001LEVALZ motherboard, this amplifier + ADC daughterboard provides a 100kHz to 100Mhz flat data acquisition channel requiring only 200mVpp (-10dBm) full scale input signal. It interfaces directly with Intersil's proven ADC analysis Konverter software. Typically consuming <680mW in the amplifier + ADC, this example design also offers a starting point for customizing this board to specific end equipment requirements.
The input transformers, amplifier gain, and interstage filter design can be tuned for a given application, allowing a user to try different circuit configurations to evaluate performance tradeoffs. In addition, the 12-bit 500MSPS ADC can be swapped out for any of the 20 pin compatible ADCs from the Intersil low power ADC family. These low power ADC's span the 8- to 14-bit range with max sample rates from 125MSPS to 500MSPS.
Application Note AN1725 describes the circuit and operation of this board in detail showing typical measurements and modification options.
Measured FFT Performance (95MHz input at 500MSPS)
SNR = 64.8dBFS
SFDR =80dB at -1dBFS
ADC power = 498mW
