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Dual-channel Continuous -Time ΔƩ AD Converter
The ADX62M14B40G is a Continuous Time (CT) ΔΣ Analog to Digital Converter (ADC) with built-in Anti- Aliasing Filters (AAF) and digital Decimation Filters.
It applies oversampling and captures the differential analog input signal with a 5 GSPS sampling clock, at the easy to drive continuous time analog input.
The CT ΔΣ Modulator loop includes inherent Anti- Aliasing Filter. This significantly reduces analog filter requirements compared to Nyquist ADCs. A robust multi-bit CT ΔΣ architecture ensures low sensitivity to clock jitter.
The ADX62M14B40G contains programmable digital decimation filters. These can be used to reduce data- rate and ensure compliance with the system requirements. The possible access to very high sample- rates, guarantees for excellent timing accuracy.
It applies oversampling and captures the differential analog input signal with a 5 GSPS sampling clock, at the easy to drive continuous time analog input.
The CT ΔΣ Modulator loop includes inherent Anti- Aliasing Filter. This significantly reduces analog filter requirements compared to Nyquist ADCs. A robust multi-bit CT ΔΣ architecture ensures low sensitivity to clock jitter.
The ADX62M14B40G contains programmable digital decimation filters. These can be used to reduce data- rate and ensure compliance with the system requirements. The possible access to very high sample- rates, guarantees for excellent timing accuracy.
Features
- 5 GSPS Internal Sampling Rate
- Integrated Decimation Filter adjusts Output Sampling Rate
- 62.5 MHz Full Performance Bandwidth
- 14-bit Resolution
- 2.0Vpp Full Scale Range
- Resistive input impedance
- Performance @ Fin=10MHz:
- SNR= 72dBFS
- SNDR = 71dBFS
- THD = 76dBc @ Ain = -1dBFS
- SFDR = 80dBc @ Ain = -1dBFS
- ENOB = 11.5bit
- Channel Isolation > 75dB
- 1.8V analog and 1.0V digital supplies
- Stand-By and Power-Down Modes
- 40nm TSMC CRN40G process
- 7 metals used
- TGO and LVT options used
Benefits
- The ADX62M14B40G IP building block is integral part of the Scalinx Smart Conversion Platform.
- The use of the Smart Conversion Platform reduces system development cost for data converter projects with analog bandwidths between 5 MHz and 600 MHz.
- The Smart Conversion Platform uses wideband CT ΔΣ ADC technology. This enables solutions where bandwidth vs. resolution trade-off as well as signal filters are implemented in programmable digital circuitry.
- The flexibility and programmability ingredients of the Smart Conversion Platform combined with appropriate IP functional blocks furnish fast and flexile path to single hardware solution for various specifications
- These features make the Smart Conversion Platform an ideal starting-point for digitizer ASIC projects demanding high analog bandwidths.
Applications
- Test & Measurement, Defence & Aerospace, Fixed & Mobile Communications
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