AD7194BCPZ

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AD7194BCPZ

IC ADC 24BIT SIGMA-DELTA 32LFCSP

  • Производитель
  • Мфр. Часть #AD7194BCPZ
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  • Лист данных AD7194BCPZ DataSheet
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Спецификации

Part Status Active
Base Product Number AD7194
Number of Bits 24
Number of Inputs 8, 16
Input Type Differential, Pseudo-Differential
Data Interface SPI, DSP
Configuration MUX-PGA-ADC
Number of A/D Converters 1
Architecture Sigma-Delta
Reference Type External
Voltage - Supply, Analog 3V ~ 5.25V
Voltage - Supply, Digital 2.7V ~ 5.25V
Features PGA
Operating Temperature -40°C ~ 105°C
Package 32-WFQFN Exposed Pad, CSP
Supplier Device Package 32-LFCSP (5x5)
Mounting Type Surface Mount
Packaging Tray

Обзор

Description

The AD7194BCPZ is a high-precision, low-noise, 24-bit sigma-delta analog-to-digital converter (ADC) designed for applications requiring accurate measurement of low-level signals. It features a built-in programmable gain amplifier (PGA), enabling it to handle a wide range of input voltages. The device operates with a supply voltage of 2.7V to 5.25V and includes an internal clock, simplifying system design.
Key features include an integrated low-noise reference, a flexible digital filter, and multiple operating modes (including continuous and single conversion). The AD7194BCPZ supports both SPI and I²C communication interfaces, allowing for easy integration with microcontrollers and digital signal processors.
Typical applications include industrial process control, weighing scales, and medical instrumentation. Its high resolution and low total harmonic distortion make it ideal for applications demanding high accuracy and stability in signal conversion. The package is available in a compact LFCSP (Lead Frame Chip Scale Package), suitable for space-constrained designs.

Features

The AD7194BCPZ is a precision, low-drift, 24-bit sigma-delta analog-to-digital converter (ADC) designed for weigh scales and industrial applications. Key features include:
1. High Resolution: 24-bit resolution for accurate measurement.
2. Low Noise: Excellent noise performance, enabling precise readings.
3. Multiple Input Channels: Supports up to four differential input channels.
4. Configurable Gain: Selectable gain options (from 1 to 128) for versatile input signal conditioning.
5. Integrated Reference: On-chip reference voltage simplifies design.
6. Power Efficiency: Low power consumption, making it suitable for battery-operated devices.
7. Data Rate: Programmable data output rates up to 20 kSPS.
8. Digital Filters: Built-in digital filtering options for signal processing.
9. SPI Interface: Easy communication through a Serial Peripheral Interface (SPI).
10. Temperature Range: Operates across a wide temperature range, suitable for harsh environments.
The AD7194BCPZ is ideal for applications requiring high accuracy and stability, such as industrial sensors and medical instrumentation.

Package

The AD7194BCPZ is packaged in a 24-lead LFCSP (Lead Frame Chip Scale Package) with a 4mm x 4mm footprint. This package type provides a compact solution suitable for various applications, offering excellent thermal performance and reduced board space.

Pinout

The AD7194BCPZ is a 24-bit sigma-delta analog-to-digital converter (ADC) with a total of 28 pins. It features a serial interface and is designed for precision measurement applications.
Key functions of the pins include:
1. Power Supply Pins: VDD (power supply) and GND (ground).
2. Reference Input: REF+ and REF- for external reference voltage.
3. Analog Inputs: AIN0, AIN1, AIN2, and AIN3 for differential or single-ended signals.
4. Digital Interface Pins:
- SCLK (serial clock), SDI (serial data input), SDO (serial data output), and CS (chip select) for SPI communication.
5. Control Pins:
- RESET for resetting the device, and various configuration pins for setting operational modes.
6. Status Pins: DRDY (data ready) to indicate when new data is available.
The AD7194 is optimized for low noise and high accuracy, suitable for applications in industrial, medical, and precision measurement systems.

Manufacturer

The AD7194BCPZ is manufactured by Analog Devices, Inc. (ADI), a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965 and headquartered in Norwood, Massachusetts, Analog Devices specializes in high-performance components used in various applications such as industrial automation, automotive, communications, and healthcare. The company is known for its innovation in signal processing technology, offering a wide range of products that include amplifiers, data converters, sensors, and microcontrollers, enabling customers to develop advanced electronic systems.

Application

The AD7194BCPZ is a high-precision, low-noise, 24-bit analog-to-digital converter (ADC) primarily used in applications such as industrial process control, weighing scales, medical instrumentation, and load cells. Its features make it suitable for measuring small signals in environments requiring high accuracy and stability, including strain gauge and pressure sensor applications.

Equivalent

The AD7194BCPZ is a precision, low-noise, delta-sigma ADC. Equivalent products include:
1. MCP3564 - Microchip's 24-bit ADC with similar specifications.
2. TI ADS1262 - Texas Instruments' 24-bit ADC with integrated low-noise features.
3. MAX11205 - Maxim Integrated's 24-bit ADC with low power consumption.
4. LTC2440 - Analog Devices' 24-bit ADC with a similar delta-sigma architecture.
Check specific datasheets for precise compatibility and performance characteristics.

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