1 Features
1• 16-Bit Resolution, Dual-Channel, 500-MSPS ADC
• Idle Channel Noise Floor: –159 dBFS/Hz
• Spectral Performance (fIN = 170 MHz at –1 dBFS):
– SNR: 73 dBFS
– NSD: –157 dBFS/Hz
– SFDR: 93 dBc
– SFDR: 94 dBc (Except HD2, HD3, and
Interleaving Tone)
• Spectral Performance (fIN = 310 MHz at –1 dBFS):
– SNR: 71.7 dBFS
– NSD: –155.7 dBFS/Hz
– SFDR: 81 dBc
– SFDR: 94 dBc (Except HD2, HD3, and
Interleaving Tone)
• Channel Isolation: 100 dBc at fIN = 170 MHz
• Input Full-Scale: 1.9 VPP
• Input Bandwidth (3 dB): 1.2 GHz
• On-Chip Dither
• Integrated Decimate-by-2 Filter
• JESD204B Interface with Subclass 1 Support:
– 1 Lane per ADC at 10.0 Gbps
– 2 Lanes per ADC at 5.0 Gbps
– Support for Multi-Chip Synchronization
• Power Dissipation: 1.35 W/ch at 500 MSPS
• 72-Pin VQFNP Package (10 mm × 10 mm)

2 Applications
• Radar and Antenna Arrays
• Broadband Wireless
• Cable CMTS, DOCSIS 3.1 Receivers
• Communications Test Equipment
• Microwave Receivers
• Software Defined Radio (SDR)
• Digitizers
• Medical Imaging and Diagnostics

3 Description
The ADS54J69 is a low-power, wide-bandwidth, 16-
bit, 500-MSPS, dual-channel, analog-to-digital
converter (ADC). Designed for high signal-to-noise
ratio (SNR), the device delivers a noise floor of
–159 dBFS/Hz for applications aiming for highest
dynamic range over a wide instantaneous bandwidth.
The device supports the JESD204B serial interface
with data rates up to 10.0 Gbps, supporting one or
two lanes per ADC. The buffered analog input
provides uniform input impedance across a wide
frequency range and minimizes sample-and-hold
glitch energy. Each ADC channel is directly
connected to a wideband digital down-converter
(DDC) block. The ADS54J69 provides excellent
spurious-free dynamic range (SFDR) over a large
input frequency range with very low power
consumption.
The JESD204B interface reduces the number of
interface lines, allowing high system integration
density. An internal phase-locked loop (PLL)
multiplies the ADC sampling clock to derive the bit
clock that is used to serialize the 16-bit data from
each channel.