AD7156

PRODUCTION

Ultralow Power, 1.8 V, 3 mm × 3 mm, 2-Channel Capacitance Converter

Data Sheet (Rev. 0) Product Selection Table
Part Models
2
1ku List Price
Starting From $1.66
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    Part Details

    • Ultralow power
      Power supply voltage: 1.8 V to 3.6 V
      Operation power supply current: 70 μA typical
      Power-down current: 2 μA typical
    • Fast response time
      Conversion time: 10 ms per channel
      Wake-up time from serial interface: 300 μs
    • Adaptive environmental compensation
    • 2 capacitance input channels
      Sensor capacitance (CSENS): 0 pF up to 13 pF
      Sensitivity up to 3 fF
    • 2 modes of operation
      Standalone with fixed settings
      Interfaced to a microcontroller for user-defined settings
    • 2 detection output flags
    • 2-wire serial interface (I2C-compatible)
    • Operating temperature: −40°C to +85°C
    • 10-lead LFCSP package (3 mm × 3 mm × 0.8 mm)
    AD7156
    Ultralow Power, 1.8 V, 3 mm × 3 mm, 2-Channel Capacitance Converter
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    Documentation

    Data Sheet 1

    User Guide 1

    Application Note 1

    Technical Articles 1

    Evaluation Design File 1

    Frequently Asked Question 1

    Learn More

    Software Resources

    FPGA/HDL 1

    Evaluation Kits

    eval board
    schematic 1
    EVAL-HCRWATCH4Z

    Vital Signs Monitoring (VSM) Watch

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    Features and Benefits

    • Vital signs monitoring platform
    • Wearable battery powered platform
    • Real-time live data view
    • Data storage to flash memory for offline analyses
    • Easy configuration

    Product Details

    The vital signs monitoring (VSM) watch, EVAL-HCRWATCH4Z, is a modular development, demonstration, and data collection platform for high performance vital signs monitoring applications based on Analog Devices, Inc., analog front ends (AFEs) and sensors.

    The VSM watch is a wearable, battery-powered device that enables the continuous monitoring and on-demand spot check measurement of photoplethysmography (PPG), electrodermal activity (EDA, bioimpedance-based), skin temperature, electrocardiography (ECG, biopotential based), and motion/activity (based on a 3‑axis accelerometer).

    The VSM watch allows synchronized, multiparameter data storage on internal memory for later data retrieval and offline analysis and/or live monitoring on a PC (Windows® OS) or Android- or iOS-based device.

    EVAL-AD7156

    AD7156 Evaluation Board

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    Product Details

    The EVAL-AD7156EBZ is a fully featured evaluation board for the AD7156. The evaluation board can be operated in complete standalone, battery-powered mode or connected to a PC via a standard USB interface. When operated with a PC, software is provided enabling the user to perform detailed analysis of the CDC's performance. This software includes the technical note describing the operation and set up of the evaluation board.


    eval board
    schematic 2
    EVAL-STUDYWATCH45Z

    Study Watch 4.5 User Guide

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    Features and Benefits

    • Device Configuration Block (DCB)
    • VSM Suite Library Configuration (LCFG)
    • Low Touch Feature

    Product Details

    This user guide explains the steps in connecting the ADI Study Watch 4.5 to a Microsoft Windows computer using a universal serial bus (USB) or Bluetooth low energy (BLE) for data streaming or logging, and analyzing the vital signs data using the Application Wavetool software.

    ADI Vital Signs Monitoring Watch 4.5 is a product designed to showcase the capabilities of Analog Devices’ biomedical sensors and algorithms for vital sign monitoring.

    The Study Watch 4.5 is a wearable, battery-powered device, which enables continuous monitoring and on-demand spot check measurement of photoplethysmography (PPG), electrocardiography (ECG, biopotential based), electrodermal activity (EDA, bioimpedance based), and skin temperature and motion/activity (based on a three-axis accelerometer). The raw sensor data can be parsed through the algorithms embedded within the watch to obtain real-time vital signs such as heart rate (HR), Oxygen saturation (SpO2), and respiration rate (RR).
    EVAL-HCRWATCH4Z
    Vital Signs Monitoring (VSM) Watch
    EVAL-AD7156
    AD7156 Evaluation Board
    EVAL-STUDYWATCH45Z
    Study Watch 4.5 User Guide

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