QD Devices Inc.
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AD7948ANZ-B
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AD7948ANZ-B

Product Overview

Category

AD7948ANZ-B belongs to the category of analog-to-digital converters (ADCs).

Use

This product is used to convert analog signals into digital data for processing and analysis in various applications.

Characteristics

  • High-resolution conversion
  • Low power consumption
  • Wide input voltage range
  • Fast conversion speed
  • Multiple channels for simultaneous conversion

Package

AD7948ANZ-B is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of AD7948ANZ-B lies in its ability to accurately and efficiently convert analog signals into digital form, enabling further digital processing.

Packaging/Quantity

AD7948ANZ-B is typically sold in reels containing 250 units per reel.

Specifications

  • Resolution: 12 bits
  • Input Voltage Range: ±10V
  • Conversion Speed: 1 MSPS (Mega Samples Per Second)
  • Power Supply: +5V
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

AD7948ANZ-B has a total of 16 pins. The pin configuration is as follows:

  1. VDD: Power supply positive terminal
  2. VREF: Reference voltage input
  3. AGND: Analog ground
  4. VIN0: Analog input channel 0
  5. VIN1: Analog input channel 1
  6. VIN2: Analog input channel 2
  7. VIN3: Analog input channel 3
  8. VIN4: Analog input channel 4
  9. VIN5: Analog input channel 5
  10. VIN6: Analog input channel 6
  11. VIN7: Analog input channel 7
  12. CS: Chip select input
  13. SCLK: Serial clock input
  14. SDATA: Serial data output
  15. DGND: Digital ground
  16. VDD: Power supply positive terminal

Functional Features

  • Simultaneous sampling of multiple channels
  • On-chip track-and-hold circuitry for accurate conversion
  • Serial interface for easy integration with microcontrollers
  • Low power consumption for energy-efficient operation
  • High-speed conversion for real-time applications

Advantages and Disadvantages

Advantages

  • High-resolution conversion ensures accurate representation of analog signals.
  • Wide input voltage range allows for versatile applications.
  • Fast conversion speed enables real-time processing.
  • Multiple channels enable simultaneous conversion of multiple signals.

Disadvantages

  • Limited to 12-bit resolution, which may not be sufficient for certain high-precision applications.
  • Requires an external reference voltage for accurate conversion.

Working Principles

AD7948ANZ-B utilizes a successive approximation register (SAR) architecture for analog-to-digital conversion. The analog input signal is sampled and held using the on-chip track-and-hold circuitry. The SAR algorithm then compares the sampled voltage with a reference voltage and iteratively determines the digital representation of the input signal.

Detailed Application Field Plans

AD7948ANZ-B finds applications in various fields, including: 1. Industrial automation 2. Data acquisition systems 3. Medical instrumentation 4. Communication equipment 5. Test and measurement devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AD7948ANZ-B are: 1. AD7947ANZ-B: 10-bit resolution ADC with similar specifications. 2. AD7949ANZ-B: 14-bit resolution ADC with similar specifications. 3. AD7980ANZ-B: 16-bit resolution ADC with higher precision.

These alternative models provide options for different resolution requirements and can be considered based on specific application needs.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van AD7948ANZ-B in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of AD7948ANZ-B in technical solutions:

  1. Q: What is AD7948ANZ-B? A: AD7948ANZ-B is a 14-bit, 8-channel analog-to-digital converter (ADC) manufactured by Analog Devices.

  2. Q: What is the operating voltage range of AD7948ANZ-B? A: The operating voltage range of AD7948ANZ-B is typically between 2.7V and 5.25V.

  3. Q: How many channels does AD7948ANZ-B have? A: AD7948ANZ-B has 8 input channels, allowing you to convert up to 8 analog signals simultaneously.

  4. Q: What is the resolution of AD7948ANZ-B? A: AD7948ANZ-B has a resolution of 14 bits, which means it can provide digital output values ranging from 0 to 16383.

  5. Q: What is the maximum sampling rate of AD7948ANZ-B? A: AD7948ANZ-B has a maximum sampling rate of 250 kilosamples per second (ksps).

  6. Q: Does AD7948ANZ-B support differential inputs? A: Yes, AD7948ANZ-B supports both single-ended and differential inputs, providing flexibility in signal conditioning.

  7. Q: What is the interface used to communicate with AD7948ANZ-B? A: AD7948ANZ-B uses a serial peripheral interface (SPI) for communication with microcontrollers or other devices.

  8. Q: Can AD7948ANZ-B operate in a low-power mode? A: Yes, AD7948ANZ-B features a power-down mode that reduces power consumption when the device is not actively converting.

  9. Q: What is the temperature range in which AD7948ANZ-B can operate? A: AD7948ANZ-B can operate within a temperature range of -40°C to +85°C.

  10. Q: Are there any evaluation boards or development kits available for AD7948ANZ-B? A: Yes, Analog Devices provides evaluation boards and software tools to help developers quickly prototype and evaluate AD7948ANZ-B in their applications.

Please note that these answers are general and may vary depending on the specific requirements and datasheet of AD7948ANZ-B.