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CN0216 Evaluation Boards
 
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CN0216 Evaluation Boards

Evaluation Boards Precision Weigh Scale Design using the AD7791 24-Bit Sigma-Delta ADC with External ADA4528-1 Zero-Drift Amplifiers

Analog Devices Inc.

The CN-0216 is a precision weigh scale signal conditioning system. It uses the AD7791, a low power buffered 24-bit sigma-delta ADC along with dual external ADA4528-2 zero-drift amplifiers. This solution allows for high dc gain with a single supply. Ultralow noise, low offset voltage, and low drift amplifiers are used at the front end for amplification of the low-level signal from the load cell. The circuit yields 15.3 bit noise-free code resolution for a load cell with a full-scale output of 10mV. This circuit allows great flexibility in designing a custom low-level signal conditioning front end that gives the user the ability to easily optimize the overall transfer function of the combined sensor-amplifier-converter circuit. The AD7791 maintains good performance over the complete output data range, from 9.5Hz to 120Hz, which allows it to be used in weigh scale applications that operate at various low speeds. The EVAL-CN0216-ARDZ evaluation board is compatible with the Arduino Shield form factor.

Specifications
  • Contents:Board(s)
  • Function:Weight Scale
  • Type:Sensor
  • Utilized IC / Part:AD7791, ADA4528-1, ADP3301
Parts

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EVAL-CN0216-ARDZEVAL-CN0216-ARDZSHIELD BOARD WEIGH SCALE DESIGN ArduinoSensorWeight ScaleAD7791, ADA4528-1, ADP3301RoHS
EVAL-CN0216-PMDZEVAL-CN0216-PMDZPRECISION WEIGHT SCALE CKT WITH Pmod™SensorWeight ScaleAD7791, ADA4528-1, ADP3301

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Associated Product
Analog Devices Inc. 24 Bit
Category: Semiconductors, Development Tools-Integrated Circuits (ICs)-Data Acquisition-Analog to Digital Converters (ADCs)-24 Bits
Analog Devices Inc. 2.75V to 3V Output
Category: Semiconductors, Development Tools-Integrated Circuits (ICs)-PMIC - Power Management-Voltage Regulators-Linear-Positive-Fixed-1 Output-2.75V to 3V
Analog Devices Inc. EVAL-ADICUP360
Category: Semiconductors, Development Tools-Development Boards, Kits, Programmers-Evaluation Boards - Embedded - MCU, DSP-MCU
Analog Devices Inc. 3.05V to 3.3V Output
Category: Semiconductors, Development Tools-Integrated Circuits (ICs)-PMIC - Power Management-Voltage Regulators-Linear-Positive-Fixed-1 Output-3.05V to 3.3V
Analog Devices Inc. Zero-Drift
Category: Semiconductors, Development Tools-Integrated Circuits (ICs)-Linear-Amplifiers-Instrumentation, OP Amps, Buffer Amps-Zero-Drift
Analog Devices Inc. 3.35V to 5V Output
Category: Semiconductors, Development Tools-Integrated Circuits (ICs)-PMIC - Power Management-Voltage Regulators-Linear-Positive-Fixed-1 Output-3.35V to 5V