1 Features
1• 14-Bit, Dual-Channel, 2.6-GSPS ADC
• Noise Floor: –154.2 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: 65-dBc HD2, HD3
– SFDR: 79-dBc Worst Spur
• Spectral Performance (fIN = 1.85 GHz, –2 dBFS):
– SNR: 58.3 dBFS
– SFDR: 69-dBc HD2, HD3
– SFDR: 74-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: 2.95 W/Ch at 2.6 GSPS
• 72-Pin VQFN Package (10 mm × 10 mm)

2 Applications
• Multi-Band, Multi-Mode 2G, 3G, 4G Cellular
Receivers
• Phased Array Radars
• Electronic Warfare
• Cable Infrastructure
• Broadband Wireless
• High-Speed Digitizers
• Software-Defined Radios
• Communications Test Equipment
• Microwave and Millimeter Wave Receivers

3 Description
The ADC32RF44 device is a 14-bit, 2.6-GSPS, dualchannel,
analog-to-digital converter (ADC) that
supports RF sampling with input frequencies up to
4 GHz and beyond. Designed for high signal-to-noise
ratio (SNR), the ADC32RF44 delivers a noise
spectral density of –154.2 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 ADC 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 frontend
peak and RMS power detectors and alarm
functions to support external automatic gain control
(AGC) algorithms.
The ADC32RF44 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).