AD4116 Analog-to-Digital Converter (ADC)

ADI's AD4116 low power, low noise, 24-bit, Σ-Δ ADC integrates an analog front end (AFE) for six fully differential or eleven single-ended, high impedance (≥10 MΩ) bipolar, ±10 V voltage inputs.

The AD4116 integrates key analog and digital signal conditioning blocks to configure eight individual setups for each analog input channel in use. As many as 16 channels can be enabled at any time. A channel is defined as any of the standard analog voltage inputs or a low-level direct ADC input. The AD4116 features a maximum channel scan rate of 12,422 SPS (80 μs) using a sinc5 + sinc1 filter and 20,618 SPS per channel (48 μs) using a sinc3 filter.

The AD4116 operates with a single power supply, making it easy to use in galvanically isolated applications. The specified operating temperature range is -40°C to +105°C. The AD4116 is housed in a 40-lead, 6 mm × 6 mm LFCSP.

The EVAL-AD4116ASDZ is a full-featured evaluation board that can be used to evaluate all the features of the AD4116. The AD4116 is a 24-bit, sigma-delta ADC with six differential/11 single-ended, high impedance (≥10 MΩ) bipolar, ±10 V voltage inputs, and two differential/4 single-ended/pseudo differential direct ADC inputs. All channels have on-board overvoltage and overcurrent protection. The EVAL-AD4116ASDZ board includes voltage references, power and data insulation, and can be connected to the Analog Devices, Inc., EVAL-SDP-CB1Z system demonstration platform. The SDP board provides connection to a PC via a universal serial bus (USB) port. It can provide power for the EVAL-AD4116ASDZ board from the PC USB port. The AD411X Eval+ evaluation software configures the AD4116 device functionality and provides DC time domain analysis in the form of waveform graphs, histograms, and associated noise analysis for ADC performance evaluation.

Features

• Enables conversion of both voltage and current inputs
• 10 MΩ iPassives® front end allows for longer cable distances, higher degrees of accuracy, and lower costs than discrete solutions
• Embedded 2.5 V, low drift (5 ppm/°C), band gap internal reference reduces external component count