AD4050

RECOMMENDED FOR NEW DESIGNS

Compact, Low Power, 12-Bit, 2 MSPS/500 kSPS Easy Drive SAR ADC

Data Sheet (Rev. A) Product Selection Table
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Overview

  • Small footprint, big performance
    • INL: ±0.1 LSB maximum
    • SNR: 73.8 dB with VREF = 3.3 V
    • 1.35 nJ per conversion
    • 1.35 mW/0.68 mW at 1 MSPS/500 kSPS in sample mode
    • 370 μW/112 μW at 1 MSPS/300 kSPS in autonomous modes
    • 4.1 μW standby power
  • Versatile signal conditioning integration
    • Easy Drive features enable small, low-power AFE designs
    • Compatible with differential and single-ended signal chains
    • Wide common-mode input range
  • Minimizes digital host activity and power dissipation
    • Autonomous sampling with window comparator and interrupt generation
    • Averaging filter with continuous and burst sampling options
    • Power cycling synchronization for companion devices
  • 4-wire SPI compatible with 1.8 V to 3.3 V logic
  • 2.00 mm × 2.6 mm LFCSP and 1.67 mm × 1.97 mm WLCSP
  • Wide operating temperature range: −40°C to +125°C

The AD4050/AD4056 are versatile, 12-bit, successive approximation register (SAR) analog-to-digital converters (ADCs) that enable low-power, high-density data acquisition solutions without sacrificing precision. These ADCs offer a unique balance of performance and power efficiency, plus innovative features for seamlessly switching between high-resolution and low-power modes tailored to the immediate needs of the system. The AD4050/AD4056 are ideal for battery-powered, compact data acquisition and edge sensing applications.

The Easy Drive features enable highly efficient analog front end (AFE) designs. The small sampling capacitors (3.4 pF) maximize input impedance, thus reducing the dependence on high-bandwidth, power-hungry amplifiers typically required by SAR ADCs. The wide input common-mode range grants inherent support for both differential and single-ended signals.

The AD4050/AD4056 support microcontrollers with power-down modes and interrupt-driven firmware. The autonomous modes enable out-of-range event detection while the digital host sleeps. The averaging modes deliver on-demand, high-resolution measurements while offloading computations from the host processor. The self timed device enable signal (DEV_EN) synchronizes AFE device power cycling to the ADC sampling instant, optimizing system power consumption while minimizing power-up settling error artifacts. The AD4050/AD4056 also support power cycling the voltage reference and using the supply as the ADC reference voltage (VREF) for additional power savings.

The device configuration and ADC data readback are supported via a robust, 4-wire serial peripheral interface (SPI) with cyclic redundancy check (CRC) supported for all data transfers. The AD4050/AD4056 are available in compact LFCSP and WLCSP packages and operate across a wide temperature range, making them ideal for a diverse set of applications.

APPLICATIONS

  • Battery-powered data acquisition
  • Vital signs monitoring
  • Biological and chemical analysis
  • Geologic and seismic sensing
  • Motion and robotics
AD4050
Compact, Low Power, 12-Bit, 2 MSPS/500 kSPS Easy Drive SAR ADC
AD4050/AD4056 Functional Block Diagram AD4050/AD4056 Pin Configuration
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Documentation

Data Sheet 1

User Guide 1

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Software Resources

Mbed Support 1

Hardware Ecosystem

Parts Product Life Cycle Description
LDO Linear Regulators 3
ADP7118
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ADP7112
RECOMMENDED FOR NEW DESIGNS 20 V, 200 mA, Low Noise, CMOS LDO Linear Regulator
ADP150
PRODUCTION Ultralow Noise, 150 mA CMOS Linear Regulator
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Evaluation Kits

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EVAL-AD4050-ARDZ

Evaluating the AD4050/AD4052 Compact, Low Power, 12-Bit/16-Bit, 2 MSPS Easy Drive SAR ADCs

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Features and Benefits

  • Full featured evaluation boards for the AD4050 and AD4052 with a USB power solution
  • Single differential channel and common-mode input available through SMA connectors
  • Out of the box evaluation experience with the SDP-K1
  • PC software (ACE plugin) for control and data analysis of the time and frequency domains
  • Compatible with other Arduino form factor controller boards

Product Details

The EVAL-AD4050-ARDZ and EVAL-AD4052-ARDZ evaluation boards enable quick and easy evaluation of the performance and features of the AD4050 or the AD4052, respectively. The AD4050 and AD4052 are compact, low power, 12-bit or 16-bit (respectively) Easy Drive successive approximation register (SAR) analog-to-digital converters (ADCs).

The primary controller board for the EVAL-AD4050-ARDZ/EVALAD4052- ARDZ is the SDP-K1. The EVAL-AD4050-ARDZ/EVALAD4052- ARDZ conform to the Arduino® Uno Shield mechanical and electrical standards to interface with the SDP-K1, in addition to various software development kits from other manufacturers.

The AD4050/AD4052 evaluation solutions include the AD4050/ AD4052 industrial input and output (IIO) firmware application drivers for device configuration and ADC data capture and the AD4050/ AD4052 ACE plugin graphical user interface (GUI) for performance evaluation.
EVAL-AD4050-ARDZ
Evaluating the AD4050/AD4052 Compact, Low Power, 12-Bit/16-Bit, 2 MSPS Easy Drive SAR ADCs
EVAL-AD4052-ARDZ Board Photo Angle View EVAL-AD4052-ARDZ Board Photo Top View EVAL-AD4052-ARDZ Board Photo Bottom View

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