1 Features

1• 16-Bit Resolution

• Maximum Sample Rate:

– ADS5562: 80 MSPS

– ADS5560: 40 MSPS

• Total Power:

– 865 mW at 80 MSPS

– 674 mW at 40 MSPS

• No Missing Codes

• High SNR: 84 dBFS (3 MHz IF)

• SFDR: 85 dBc (3 MHz IF)

• Low-Frequency Noise Suppression Mode

• Programmable Fine Gain, 1-dB steps Until 6-dB

Maximum Gain

• Double Data-Rate (DDR) LVDS and Parallel

CMOS Output Options

• Internal and External Reference Support

• 3.3-V Analog and Digital Supply

• Pin-for-Pin With ADS5547 Family

• 48-VQFN Package (7.00 mm × 7.00 mm)

2 Applications

• Medical Imaging, MRI

• Wireless Communications Infrastructure

• Software Defined Radio

• Test and Measurement Instrumentation

• High Definition Video

3 Description

The ADS556x is a high-performance 16-bit family of

ADCs with sampling rates up to 80 MSPS. The

device supports very-high SNR for input frequencies

in the first Nyquist zone. The device includes a lowfrequency

noise suppression mode that improves the

noise from DC to about 1 MHz.

In addition to high performance, the device offers

several flexible features such as output interface

(either Double Data Rate [DDR] LVDS or parallel

CMOS) and fine gain in 1-dB steps until 6-dB

maximum gain.

Innovative techniques, such as DDR LVDS and an

internal reference that does not require external

decoupling capacitors, have been used to achieve

significant savings in pin count. This innovation

results in a compact 7-mm × 7-mm 48-pin VQFN

package.

The device can be put in an external reference mode,

where the VCM pin behaves as the external reference input. For applications where power is

important, the ADS556x device offers power down

modes and automatic power scaling at lower sample

rates.

The device is specified over the industrial

temperature range of –40°C to 85°C.