FX332 – 32 GHz Sample & Hold
The FX331C is a differential, dual rank, Sample & Hold Amplifier (S&HA) that tracks to 30GHz signals. It is optimized for low-noise, sub-sampling 20M-900MS/s and low-power dissipation. The FX331C is targeted at wideband, sub-sampled data acquisition/instrumentation applications where ultra-low noise level, low power-consumption, and very small form factor are required.
Product Description
The FX331C employs a novel circuit architecture implemented in advanced SiGe BiCMOS. It is the smallest, lowest power, and simplest to use high-bandwidth S&HA available commercially. Tracking input-referred noise is 1mVrms. The FX331C tracks DC to 30GHz analog signals and performs high-fidelity sampling from 20M to 900MS/s.
Key Features
- Single clock/dual rank architecture
- 2.9mm ceramic/air-cavity QFN16 package
- Single -5V Vee supply
- 550mW power dissipation
- Analog Bandwidth Adjust (BWA) allowing 24-30GHz band-limiting
- High-isolation
- Pin/function compatible with FX331A
Applications
- Sub-sampling: digital sampling oscilloscopes, jitter test
- High-speed digital communications systems
- RF Automated Test Equipment (ATE)
- Bandwidth & linearity extension of ADCs
- Hand-held test & measurement
Due to the compact size and low power, the FX331C can extend the bandwidth/linearity of systems that employ commercial ADCs.
Specifications
- 30GHz input tracking bandwidth, 300mVppd
- Min-Max sampling rate: 20MS/s to 900MS/s
- 62dBc SFDR @ Fin=1GHz, 500mVp-p, 200MS/s
- 44dBc SFDR @ Fin=10GHz, 500mVp-p, 200MS/s
- >55dB feed-through rejection in hold mode
- AC/DC-coupled differential IO
- Low power dissipation, 550mW
- Analog input bandwidth adjustable: 24-30GHz
- Single -5V supply
- 1mV rms input referred noise
- 2.9x2.9mm QFN16 package
- On-Chip bandgap and current references
Qualifications
- No Latch-Up per JESD78D
- Achieved CDM (JESD22-C101D) Class III per ESD STM5.3.1-2009
- Achieved HBM (JESD22-A114) Class 1B per ESD STM5.1-2007
