AD7891ASZ-1

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AD7891ASZ-1

IC DAS 12BIT 500K 44MQFP

100% оригинальный & Новые

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Гарантия 365 дней

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Спецификации

Package Bulk,Tray
ProductStatus Active
Type Data Acquisition System (DAS)
NumberofChannels 8
Resolution(Bits) 12 b
SamplingRate(PerSecond) 500k
DataInterface Serial, Parallel
VoltageSupplySource Single Supply
Voltage-Supply 5V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 44-QFP

Обзор

Description

The AD7891ASZ-1 is a high-speed, 12-bit analog-to-digital converter (ADC) designed for precise data conversion in various applications, including industrial automation, medical instrumentation, and data acquisition systems. It features a successive approximation architecture, enabling fast conversion rates of up to 1.5 MSPS (megasamples per second), making it suitable for capturing fast-changing signals.
Key specifications include an input voltage range of 0 to VREF, a serial interface for easy communication with microcontrollers, and low power consumption, typically around 15 mW. The device also offers differential input capability, which enhances noise immunity and improves measurement accuracy.
The AD7891ASZ-1 is packaged in a compact 20-lead TSSOP form factor, facilitating integration into space-constrained designs. With its combination of speed, resolution, and versatility, the AD7891ASZ-1 is an ideal choice for users seeking reliable and efficient analog-to-digital conversion solutions.

Features

The AD7891ASZ-1 is a 12-bit analog-to-digital converter (ADC) designed for high-speed data acquisition. Key features include:
1. Resolution: 12-bit resolution, providing a balance between precision and speed.
2. Input Range: Supports various input voltage ranges.
3. Sampling Rate: Capable of sampling at up to 1 MSPS (mega samples per second).
4. Single Supply Operation: Operates from a single +5V supply, simplifying design.
5. Serial Interface: Utilizes a 3-wire SPI-compatible digital output for easy interfacing with microcontrollers.
6. Low Power Consumption: Typical power consumption is low, which is suitable for portable applications.
7. Internal Reference: Contains an internal reference voltage for stable performance.
8. Flexible Data Formats: Supports various data formats, including binary and two's complement.
9. On-chip Track-and-Hold: Ensures accurate signal capture during sampling.
These features make the AD7891ASZ-1 suitable for various applications, including industrial automation, sensor interfacing, and medical instrumentation.

Package

The AD7891ASZ-1 is packaged in a 16-lead TSSOP (Thin Shrink Small Outline Package) format. This surface-mount package is designed for compact integration in electronic circuits.

Pinout

The AD7891ASZ-1 is a 16-bit Analog-to-Digital Converter (ADC) with a pin count of 24.
Pin Functions:
1. VDD/VSS: Power supply pins (positive and ground).
2. REFIN/REFOUT: Reference voltage input/output for setting the ADC reference level.
3. VIN+ / VIN-: Differential input pins for the analog signal.
4. SDO: Serial Data Output, used for data transmission.
5. SDI: Serial Data Input, used for configuration and control.
6. SCLK: Serial Clock input for synchronizing data transmission.
7. CONVST: Conversion Start signal, initiates the conversion process.
8. BUSY: Indicates when the ADC is busy processing.
9. CS: Chip Select, used to enable the device for communication.
The AD7891ASZ-1 supports a serial interface and is commonly used in applications requiring precise analog signal conversion.

Manufacturer

The AD7891ASZ-1 is manufactured by Analog Devices, Inc. (ADI), a global semiconductor company that specializes in data conversion and signal processing technologies. Founded in 1965, Analog Devices designs and manufactures a wide range of analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs) used in various applications, including industrial automation, communications, healthcare, and automotive systems. The company is known for its commitment to innovation and high-performance solutions, enabling customers to achieve efficiency and accuracy in their electronic designs.

Application

The AD7891ASZ-1 is a 12-bit, low-power analog-to-digital converter (ADC) commonly used in applications such as data acquisition systems, portable instrumentation, industrial process control, medical devices, and sensor interfacing. Its high speed and precision make it suitable for applications requiring accurate voltage measurements in environments like robotics, telecommunications, and automotive systems.

Equivalent

The AD7891ASZ-1 is a 12-bit analog-to-digital converter (ADC) from Analog Devices. Equivalent products include:
1. AD7940 - 12-bit, low noise, voltage input ADC.
2. AD7920 - 12-bit, successive approximation ADC.
3. MCP3201 - 12-bit ADC from Microchip.
4. MAX1241 - 12-bit ADC from Maxim Integrated.
These alternatives offer similar performance and specifications, suitable for applications requiring ADC functionality. Always check datasheets for detailed comparisons.

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