1 Features

• 14-bit 125 MSPS ADC

• Noise floor: –153 dBFS/Hz

• Ultra-low power with optimized power scaling:

97 mW/ch (125 MSPS)

• Latency: 1 clock cycle

• INL: ±1.5 LSB; DNL: ±0.5 LSB

• Reference: external or internal

• Industrial temperature range: –40°C to +105°C

• On-chip digital filter (optional)

– Decimation by 2, 4, 8, 16, 32

– 32-bit NCO

• SDR/DDR and Serial CMOS interface

• Small footprint: 40-WQFN (5 mm × 5 mm) package

• Single 1.8-V supply

• Spectral performance (fIN = 5 MHz):

– SNR: 74.0 dBFS

– SFDR: 85-dBc HD2, HD3

– SFDR: 93-dBFS worst spur

• Spectral performance (fIN = 70 MHz):

– SNR: 70.6dBFS

– SFDR: 79-dBc HD2, HD3

– SFDR: 85-dBFS worst spur

2 Applications

• High-speed data acquisition

• Industrial monitoring

• Thermal imaging

• Imaging and sonar

• Software defined radio

• Power quality

• Communications infrastructure

• High-speed control loops

• Instrumentation

• Smart grids

• Spectroscopy

• Radar

3 Description

The ADC3544 device is a low-noise, ultra-low

power, 14-bit, 125-MSPS, high-speed analog-todigital

converter (ADC). Designed for low power

consumption, the device delivers a noise spectral

density of –153 dBFS/Hz, combined with a good

linearity and dynamic range. The ADC3544 offers

IF sampling support, which make these devices an

excellent choice for a wide range of applications.

High-speed control loops benefit from the short

latency of only one clock cycle. The ADC consumes

only 97 mW/ch at 125 MSPS, and the power

consumption scales well with lower sampling rates.

The ADC3544 uses an SDR or DDR interface to

output the data offering the lowest power digital

interface, together with the flexibility to minimize the

number of digital interconnects. These devices are

a pin-to-pin compatible family with different speed

grades. These devices support the extended industrial

temperature range of –40°C to 105⁰C.