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AD7741BRZ
+BOMIC V/F CONV 6.144MHZ 8SOIC
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Nhà sản xuấtCông ty Analog Devices Inc.
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Ông. Phần #AD7741BRZ
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Part Status | Active |
| Base Product Number | AD7741 |
| Type | Voltage to Frequency |
| Frequency - Max | 6.144 MHz |
| Full Scale | ±50ppm/°C |
| Linearity | ±0.024% |
| Mounting Type | Surface Mount |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Packaging | Tube |
Tổng quan
Description
Key specifications include a measurement range of up to ±4 pF, which makes it suitable for various applications such as pressure sensing, humidity sensing, and proximity detection. The device operates over a wide supply voltage range, typically from 2.7 V to 5.25 V, and supports a standard I²C-compatible interface for easy integration with microcontrollers and other digital systems.
Additionally, the AD7741BRZ boasts low power consumption and provides an on-chip temperature sensor to compensate for temperature effects on measurements. Its compact design, high accuracy, and ease of use make it a popular choice for developers looking to implement capacitive sensing capabilities in their electronic projects.
Equivalent
Features
1. Resolution and Performance: It offers a 24-bit resolution, ideal for applications requiring high precision.
2. Input Range: It has a single-ended input with a selectable input range, accommodating various sensor types.
3. Low Noise: The device provides low noise performance, essential for accurate and stable measurements.
4. Programmable Gain: It includes a programmable gain stage, enhancing flexibility across different applications.
5. Calibration: On-chip calibration features help maintain accuracy over time and varying conditions.
6. Temperature Compensation: Integrated temperature sensor allows for compensation, improving measurement stability.
7. Power Supply: It operates on a single power supply, simplifying design and integration.
8. Interface: The ADC supports a simple serial interface for easy communication with microcontrollers.
9. Low Power: Designed for low power consumption, suitable for battery-operated devices.
These features make the AD7741BRZ suitable for precision measurement tasks in industrial, scientific, and medical applications.
Pinout
1. VDD: Power supply pin (2.7V to 5.25V).
2. GND: Ground reference pin.
3. CIN: Capacitive input pin for connecting the external capacitor to be measured.
4. VREF: External reference voltage input (optional).
5. SCL: Serial clock line for I2C communication.
6. SDA: Serial data line for I2C communication.
7. SYNC: Synchronization input pin.
8. RDY/BSY: Ready/Busy status output pin, indicating conversion status.
The AD7741BRZ is utilized in applications involving capacitance measurement, such as pressure sensors, humidity sensors, and other types of transducers that require precise capacitance measurement.
Manufacturer
Application
1. Pressure and Temperature Measurement: For industrial and environmental monitoring systems.
2. Weigh Scales: Used in precision weighing scales for accurate weight measurement.
3. Medical Instrumentation: For high-resolution data acquisition in medical devices.
4. Precision Instrumentation: Used in laboratory and research instruments requiring high accuracy.
5. Strain Gauge Systems: Ideal for capturing minute changes in resistance for load cells and other strain gauge applications.
These applications benefit from the ADC's high resolution, low noise, and energy efficiency.