1 Features

• 18-bit 10/25/65 MSPS ADC

• Noise Floor: -160 dBFS/Hz

• Ultra Low Power with Optimized Power Scaling:

77 mW (10 MSPS) to 119 mW (65 MSPS)

• Latency: 1 clock cycle (1-wire SLVDS)

• Specified 18-bit, no missing codes

• INL/DNL: ±7/ ±0.7 LSB (typ)

• Reference: External or Internal

• Input Bandwidth: 900 MHz (3dB)

• Industrial Temperature Range: -40 to +105°C

• On-chip digital filter (optional)

– Decimation by 2, 4, 8, 16, 32

– 32-bit NCO

• Serial LVDS digital interface (2-, 1- and 1/2-wire)

• Small Footprint: 40-WQFN (5x5 mm) Package

• Spectral Performance (fIN = 1 MHz):

– SNR: 84.5 dBFS

– SFDR: 95 dBc HD2, HD3

– SFDR: 100 dBFS Worst Spur

• Spectral Performance (fIN = 20 MHz):

– SNR: 83.5 dBFS

– SFDR: 90 dBc HD2, HD3

– SFDR: 95 dBFS Worst Spur

2 Applications

• High-Speed Data Acquisition

• Industrial Monitoring

• Software Defined Radio

• Power Quality Analyzer

• Source Measurement Unit (SMU)

• Communications Infrastructure

• Spectrum Analyzer

• Control Loops

• Instrumentation

• Imaging

• Spectroscopy

• Radar

• Sonar

3 Description

The ADC358x is a low noise, ultra-low power 18-bit

65 MSPS high-speed ADC family. Designed for low

noise performance, it delivers a noise spectral density

of -160 dBFS/Hz combined with excellent linearity

and dynamic range. The ADC358x offers very good

DC precision together with IF sampling support which

makes it suited for a wide range of applications. Highspeed

control loops benefit from the short latency

as low as only 1 clock cycle. The ADC consumes

only 119 mW at 65 Msps and its power consumption

scales well with lower sampling rates.

The ADC358x uses a serial LVDS (SLVDS) interface

to output the data which minimizes the number of

digital interconnects. The device supports a one-lane

and two-lane option. The ADC358x is a pin to pin

compatible family with different speed grades. It

comes in a 40-pin QFN package (5 x 5 mm) and

supports the extended industrial temperature range

from -40 to +105⁰C.