AD7851ARSZ

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AD7851ARSZ

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IC ADC 14BIT SAR 24SSOP

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  • メーカー品番 #AD7851ARSZ

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仕様

属性
PartStatus Active
NumberofBits 14
SamplingRate(PerSecond) 333k
NumberofInputs 1
InputType Pseudo-Differential
DataInterface SPI
Configuration S/H-ADC
Ratio-S/H:ADC 1:1
NumberofA/DConverters 1
Architecture SAR
ReferenceType External, Internal
Voltage-Supply,Analog 5V
Voltage-Supply,Digital 5V
OperatingTemperature -40°C ~ 125°C
Package/Case 24-SSOP (0.209", 5.30mm Width)
SupplierDevicePackage 24-SSOP
MountingType Surface Mount
BaseProductNumber AD7851

概要

Description

The AD7851ARSZ is a high-speed, 12-bit analog-to-digital converter (ADC) designed for various applications, including data acquisition and instrumentation. It features a parallel interface, allowing for quick data transfer, and operates with a maximum sampling rate of 1 MSPS (mega samples per second). The device includes an internal track-and-hold circuit, ensuring accurate sampling of input signals.
Key specifications include a reference voltage range of 2.5V to 5V, low power consumption, and a wide input voltage range. The AD7851 can be powered by a single supply voltage, making it versatile for battery-operated devices. It also supports an external clock and offers various modes of operation, including continuous and single conversions.
This ADC is commonly used in industrial control, medical devices, and consumer electronics, where precise digital representations of analog signals are required. Its compact form factor and robust performance make it suitable for a wide range of applications.

Equivalent

The AD7851ARSZ chip, a 12-bit analog-to-digital converter (ADC), has several equivalent products, including the AD7850, AD7751, and the LTC1867. Other alternatives include the MCP3201 and the MAX1168, depending on specific requirements such as resolution, speed, and interface. Always check the datasheets for detailed specifications to ensure compatibility with your application.

Features

The AD7851ARSZ is a high-speed, 12-bit analog-to-digital converter (ADC) with several key features:
1. Sampling Rate: Offers a fast sampling rate of up to 1 MSPS.
2. Parallel Interface: Supports a 12-bit parallel output for rapid data retrieval.
3. Internal Reference: Includes an internal voltage reference for improved accuracy and reduced external component count.
4. Single Supply Operation: Operates on a single +5V supply, simplifying design and integration.
5. Low Power Consumption: Features low power consumption in both active and sleep modes, making it suitable for battery-powered applications.
6. Input Range: Accepts a bipolar input range of ±10V or unipolar input options.
7. Built-in Sample and Hold: Integrates a sample-and-hold circuit to maintain signal integrity during conversion.
8. Temperature Range: Designed for industrial-grade reliability, with operation across a wide temperature range.
These features make the AD7851ARSZ ideal for applications in data acquisition systems, instrumentation, and industrial control.

Pinout

The AD7851ARSZ is a 12-bit analog-to-digital converter (ADC) with a total of 28 pins. It features a variety of functions including:
1. Power Supply Pins: VDD and AGND for power and ground.
2. Input Pins: Multiple analog input channels (AIN0 to AIN11) for signal acquisition.
3. Control Pins: Various control signals including CS (Chip Select), RD (Read), WR (Write), and RESET for interfacing.
4. Digital I/O: Data output pins (DB0 to DB11) for the digital representation of the analog input.
5. Clock Input: A clock input pin (CLK) for timing signals.
6. Reference Voltage: VREF pins for setting the reference voltage used in the conversion process.
7. Interrupts: An interrupt pin (INT) to signal conversion completion.
This configuration allows the AD7851 to operate efficiently in applications requiring high-speed data acquisition and processing.

Manufacturer

The AD7851ARSZ is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company headquartered in Norwood, Massachusetts. Founded in 1965, the company specializes in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits.
Analog Devices serves various markets, including communications, automotive, industrial automation, healthcare, and consumer electronics. Their products are known for precision and reliability, often used in applications such as data acquisition, instrumentation, and control systems. The AD7851ARSZ itself is a high-speed, 16-bit, analog-to-digital converter (ADC) designed for applications that require fast and accurate digital conversion of analog signals.
As a prominent player in the semiconductor industry, Analog Devices focuses on innovation and technology development, catering to both established markets and emerging sectors.

Application

The AD7851ARSZ is a high-speed, 12-bit analog-to-digital converter (ADC) primarily used in applications requiring precise and rapid data conversion. Key application areas include:
1. Industrial Automation: For monitoring and controlling processes.
2. Data Acquisition Systems: In laboratory instrumentation and testing equipment.
3. Medical Devices: Such as imaging systems and patient monitoring equipment.
4. Communication Systems: For signal processing in telecommunications.
5. Automotive: In engine control units and sensor applications.
6. Consumer Electronics: In audio and video processing devices.
Its fast conversion speed and high accuracy make it suitable for real-time applications across these sectors.

Package

The AD7851ARSZ is packaged in a 28-lead SSOP (Shrink Small Outline Package).

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