ADAQ4224

RECOMMENDED FOR NEW DESIGNS

24-Bit, 2 MSPS, μModule Data Acquisition Solution

Analog Devices ADAQ4224 Product Info

10 February 2026 2

Features

High Performance
- Throughput: 2 MSPS, no latency
- INL: ±1 ppm maximum from −40 °C to 105 °C
- Total system dynamic range: 128 dB typical
- SNR: 106.5 dBFS typical, THD: −122 dB typical
- Offset error drift: +4.1 μV/°C maximum
- Gain error drift: +1.50 ppm/°C maximum
Ease of use features reduce system complexity
- Second-order, 270 kHz anti-aliasing filter
- High-Z PGIA gain options: 1/3, 5/9, 20/9, 20/3
- Flexible external reference voltage: 4.096 V or 5 V
- Differential Input Voltage ranges, ±REFIN/Gain: ±15 V, ±9 V, ±2.25 V, ±0.75 V
- Wide input common-mode voltage range: −8 V to +10 V
- Low input bias current: ±20 pA typical
High density solution reduces system footprint
- 14 mm × 9 mm, 0.8 mm pitch, 178-ball CSP BGA
- 4× footprint reduction vs. equivalent discrete solution
- On-board reference buffer with an internal VCM generation

Total power dissipation: 446 mW typical at 2 MSPS
Electrically isolated, 1.8 V I²C-compatible temperature sensor
Flexi-SPI digital interface
- 1, 2, or 4 SDO lanes allows slower SCK
- Echo clock mode simplifies use of digital isolator
- Compatible with 1.2 V to 1.8 V logic
- PGIA gain control (A0, A1) interface
- Extended sample resolution to 30-bits
- Overrange and synchronization bits

Part details & applications

The ADAQ4224 is a μModule^® precision data acquisition (DAQ) signal chain solution that reduces the development cycle of a precision measurement system by transferring the signal chain design challenge of component selection, optimization, and layout from the designer to the device. With a guaranteed maximum ±1.0 ppm INL and no missing codes at 24 bits, the ADAQ4224 achieves unparalleled precision performance from −40°C to +105°C.

Using system-in-package (SIP) technology, the ADAQ4224 combines the common signal processing blocks required in a data acquisition solution in a small footprint, 14 mm × 9mm, 0.8 mm pitch, 178-ball CSP_BGA package.

The ADAQ4224 integrates the following:

A low noise, high-bandwidth programmable gain instrumentation amplifier (PGIA).
A second-order anti-aliasing filter.
A low-noise, low-distortion, high-bandwidth ADC driver.
A high precision 24-bit, 2 MSPS successive approximation register (SAR) ADC.
An electrically isolated, I²C compatible temperature sensor with excellent accuracy of ±1°C maximum.
A 1.8 V low dropout (LDO) regulator.
Performance critical passives.

The ADAQ4224 incorporates the critical passive components with superior matching and drift characteristics using Analog Devices, Inc., iPassive^® technology to minimize temperature dependent error sources and to offer optimized performance. Integrating the critical power supply and reference bypass capacitors reduce sensitivity to the system level board layout. Reducing the solution footprint enables addition of more functions within the system and hence the smaller form factor instruments without sacrificing performance.

The system integration solves many design challenges while the μModule still provides the flexibility of a configurable PGIA to allow gain or attenuation adjustments, as well as

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