• AD7891ASZ-1 MQFP-44
AD7891ASZ-1 MQFP-44

AD7891ASZ-1

8-Channel Single ADC SAR 454.5ksps 12-bit Parallel/Serial 44-Pin MQFP Tray

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  • Part Number : AD7891ASZ-1

  • Package/Case : MQFP-44

  • Brands : Analog Devices

  • Components Categories : ADCs/DACs - Special Purpose

  • Datesheet : AD7891ASZ-1 DataSheet (PDF)

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Overview of AD7891ASZ-1

The AD7891ASZ-1 is a 12-bit successive approximation analog-to-digital converter (ADC) with a maximum sampling rate of 1 MSPS. It is designed to convert analog signals into digital data for various precision measurement applications, offering high accuracy and reliability.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VDD: Analog Power Supply

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the AD7891ASZ-1 ADC for a visual representation.

Key Features

  • 12-Bit Resolution: Provides high-resolution digital conversion for accurate measurement results.
  • 1 MSPS Sampling Rate: Offers fast sampling capabilities for real-time data acquisition.
  • Low Power Consumption: Operates at low power levels, making it suitable for battery-operated devices.
  • Single-Supply Operation: Supports single-supply voltage operation for simplified system design.
  • Serial Interface: Utilizes a serial interface for easy integration with microcontrollers and DSPs.

Note: For detailed technical specifications, please refer to the AD7891ASZ-1 datasheet.

Application

  • Precision Measurement Systems: Ideal for use in precision measurement systems requiring high-resolution ADC conversion.
  • Data Acquisition: Suitable for data acquisition systems in industrial and scientific applications.
  • Instrumentation: Used in instrumentation equipment for converting analog signals to digital data.

Functionality

The AD7891ASZ-1 ADC is a high-performance converter that accurately digitizes analog signals into 12-bit digital data. It ensures reliable and precise measurement results in various applications.

Usage Guide

  • Power Supply: Connect the VDD pin to the analog power supply and AGND to the analog ground.
  • Analog Input: Apply the analog signal to the +IN pin for conversion by the ADC.
  • Conversion Control: Use the CNVST pin to initiate the conversion process and read the digital output from the SDATA pin.

Frequently Asked Questions

Q: What is the maximum sampling rate of the AD7891ASZ-1?
A: The AD7891ASZ-1 has a maximum sampling rate of 1 MSPS, allowing for fast data acquisition.

Q: Is the AD7891ASZ-1 suitable for battery-powered applications?
A: Yes, the AD7891ASZ-1 operates at low power levels and is suitable for battery-operated devices requiring high-precision ADC conversion.

Equivalent

For similar functionalities, consider these alternatives to the AD7891ASZ-1:

  • AD7685: A 16-bit high-speed successive approximation ADC offering enhanced resolution and performance.
  • LTC1867: This is a 12-bit, 250 kSPS SAR ADC from Linear Technology, providing similar features and performance to the AD7891ASZ-1.

AD7891ASZ-1

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category Data Acquisition ADCs/DACs - Specialized RoHS Details
Series AD7891 Mounting Style SMD/SMT
Package / Case MQFP-44 Product Data Acquisition Systems
Type High Speed ADC Resolution 12 bit
Number of Channels 8 Channel Supply Voltage - Min 5 V
Supply Voltage - Max 5 V Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 85 C Analog Supply Voltage 5 V
Architecture SAR Brand Analog Devices
Digital Supply Voltage 5 V DNL - Differential Nonlinearity +/- 1 LSB
Gain Error +/- 3 LSB Height 2 mm
INL - Integral Nonlinearity +/- 1 LSB Input Type Single-Ended
Input Voltage +/- 5 V/+/- 10 V Interface Type Parallel, Serial
Length 10 mm Moisture Sensitive Yes
Number of ADC Inputs 8 Input Number of Converters 1 Converter
Output Type CMOS/TTL Pd - Power Dissipation 100 mW
Product Type Data Acquisition ADCs/DACs - Specialized Reference Type External, Internal
Sampling Rate 454 kS/s SNR - Signal to Noise Ratio 70 dB
Factory Pack Quantity 96 Subcategory Data Converter ICs
Width 10 mm Unit Weight 0.017588 oz

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