14-Bit, 3-GSPS, RF-Sampling Wideband Receiver and Feedback IC - ADC31RF80

ADC31RF80 (ACTIVE)

14-Bit, 3-GSPS, RF-Sampling Wideband Receiver and Feedback IC

 

Description

The ADC31RF80 device is a 14-bit, 3-GSPS, single-channel telecom receiver and feedback device that supports RF sampling with input frequencies up to 4 GHz and beyond. Designed for high signal-to-noise ratio (SNR), the ADC31RF80 delivers a noise spectral density of –155 dBFS/Hz as well as dynamic range over a large input frequency range. The buffered analog input with on-chip termination provides uniform input impedance across a wide frequency range and minimizes sample-and-hold glitch energy.

The ADC31RF80 comes with a dual-band, digital down-converter (DDC) with up to three independent, 16-bit numerically-controlled oscillators (NCOs) per DDC for phase-coherent frequency hopping. Additionally, the ADC is equipped with front-end peak and RMS power detectors and alarm functions to support external automatic gain control (AGC) algorithms.

The ADC31RF80 supports the JESD204B serial interface with subclass 1-based deterministic latency using data rates up to 12.5 Gbps with up to four lanes. The device is offered in a 72-pin VQFN package (10 mm × 10 mm) and supports the industrial temperature range (–40°C to +85°C).



Features

  • 14-Bit, 3-GSPS ADC
  • Noise Floor: –155 dBFS/Hz
  • RF Input Supports Up To 4.0 GHz
  • Aperture Jitter: 90 fS
  • Spectral Performance (fIN = 900 MHz, –2 dBFS):
    • SNR: 61.4 dBFS
    • SFDR: 71-dBc HD2, HD3
    • SFDR: 76-dBc Worst Spur
  • Spectral Performance (fIN = 1.85 GHz, –2 dBFS):
    • SNR: 58.5 dBFS
    • SFDR: 65-dBc HD2, HD3
    • SFDR: 75-dBc Worst Spur
  • On-Chip Digital Down-Converters:
    • Up to 2 DDCs (Dual-Band Mode)
    • Up to 3 Independent NCOs per DDC
  • On-Chip Input Clamp for Overvoltage Protection
  • Programmable On-Chip Power Detectors With Alarm Pins for AGC Support
  • On-Chip Dither
  • On-Chip Input Termination
  • Input Full-Scale: 1.35 VPP
  • Support for Multi-Chip Synchronization
  • JESD204B Interface:
    • Subclass 1-Based Deterministic Latency
    • 4 Lanes Support at 12.5 Gbps
  • Total Power Dissipation: 3.2 W at 3.0 GSPS
  • 72-Pin VQFN Package (10 mm × 10 mm)

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Parametrics Compare all products in Wideband Receivers

 
# Input Channels
Resolution (Bits)
Sample Rate (Max) (MSPS)
Analog Input BW (MHz)
SFDR (Typ) (dB)
SNR (Typ) (dB)
Power Consumption (Typ) (mW)
Features
Logic Voltage DV/DD (Max) (V)
Logic Voltage DV/DD (Min) (V)
Analog Voltage AVDD (Max) (V)
Analog Voltage AVDD (Min) (V)
Operating Temperature Range (C)
Pin/Package
ADC31RF80 ADC32RF80 ADC32RF82 ADC32RF83
1    2    2    2   
14    14    14    14   
3000    3000    2456    3000   
3200    3200    3200    3200   
71    66    67    66   
61.4    61.1    61.2    61.1   
3200    6400    5500    6400   
Decimating Filter    Decimating Filter    Decimating Filter    Decimating Filter   
1.2    1.2    1.2    1.2   
1.1    1.1    1.1    1.1   
1.25
2   
1.25
2   
1.25
2   
1.25
2   
1.1
1.8   
1.1
1.8   
1.1
1.8   
1.1
1.8   
-40 to 85    -40 to 85    -40 to 85    -40 to 85   
72VQFN    72VQFN    72VQFN    72VQFN