Dual-Channel, 14-Bit, 2.45GSPS, RF-Sampling Telecom Receiver and Feedback IC - ADC32RF82

ADC32RF82 (ACTIVE)

Dual-Channel, 14-Bit, 2.45GSPS, RF-Sampling Telecom Receiver and Feedback IC

 

Description

The ADC32RF82 is a 14-bit, 2457.6-MSPS, dual-channel telecom receiver and feedback device family that supports RF sampling with input frequencies up to 4 GHz and beyond. Designed for high signal-to-noise ratio (SNR), the ADC32RF82 delivers a noise spectral density of –154.1 dBFS/Hz as well as dynamic range and channel isolation 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.

Each channel can be connected to 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 ADC32RF82 supports the JESD204B serial interface with subclass 1-based deterministic latency using data rates up to 12.5 Gbps with up to four lanes per ADC. 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, Dual-Channel, 2457.6-MSPS ADC
  • Noise Floor: –154.1 dBFS/Hz
  • RF Input Supports Up to 4.0 GHz
  • Aperture Jitter: 90 fS
  • Channel Isolation: 95 dB at fIN = 1.8 GHz
  • Spectral Performance (fIN = 900 MHz, –2 dBFS):
    • SNR: 61.2 dBFS
    • SFDR: 67-dBc HD2, HD3
    • SFDR: 81-dBc Worst Spur
  • Spectral Performance (fIN = 1.85 GHz, –2 dBFS):
    • SNR: 58.7 dBFS
    • SFDR: 71-dBc HD2, HD3
    • SFDR: 76-dBc Worst Spur
  • On-Chip Digital Down-Converters:
    • Up to 4 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 Per Channel at 12.5 Gbps
  • Power Dissipation: 3.0 W/Ch at 2457.6 MSPS
  • 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
ADC32RF82 ADC31RF80 ADC32RF80 ADC32RF83
2    1    2    2   
14    14    14    14   
2456    3000    3000    3000   
3200    3200    3200    3200   
67    71    66    66   
61.2    61.4    61.1    61.1   
5500    3200    6400    6400   
Decimating Filter    Decimating Filter    Decimating Filter    Decimating Filter   
  1.2    1.2    1.2   
  1.1    1.1    1.1   
  1.25
2   
1.25
2   
1.25
2   
  1.1
1.8   
1.1
1.8   
1.25
2   
-40 to 85    -40 to 85    -40 to 85    -40 to 85   
72VQFN    72VQFN    72VQFN    72VQFN