AD7678ASTZ

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AD7678ASTZ

IC ADC 18BIT SAR 48LQFP

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Bảo hành 365 ngày

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Thông số kỹ thuật

Series PulSAR®
Part Status Active
Base Product Number AD7678
Number of Bits 18
Sampling Rate (Per Second) 100k
Number of Inputs 1
Input Type Differential
Data Interface SPI, Parallel, DSP
Configuration S/H-ADC
Ratio - S/H:ADC 1:1
Number of A/D Converters 1
Architecture SAR
Reference Type External, Internal
Voltage - Supply, Analog 5V
Voltage - Supply, Digital 5V
Operating Temperature -40°C ~ 85°C
Package 48-LQFP
Supplier Device Package 48-LQFP (7x7)
Mounting Type Surface Mount
Packaging Tray

Tổng quan

Description

The AD7678ASTZ is a high-performance, 16-bit, analog-to-digital converter (ADC) from Analog Devices. It operates with a sample rate of up to 1 MSPS and features a serial interface for data communication. The device employs a differential input architecture, which enhances noise immunity and allows for accurate signal capture.
Key features include low power consumption, high linearity, and a wide input voltage range. The AD7678ASTZ supports both single-ended and differential inputs, making it versatile for various applications, including industrial automation, medical instrumentation, and data acquisition systems.
Additionally, it includes built-in reference voltages and programmable gain amplifiers, facilitating ease of integration into existing systems. With a small package size, the AD7678ASTZ is suitable for space-constrained designs. Overall, it is an ideal choice for applications requiring high accuracy and speed in signal processing.

Features

The AD7678ASTZ is a high-performance, 18-bit analog-to-digital converter (ADC) designed for fast and accurate data acquisition. Key features include:
1. Sampling Rate: Up to 1 MSPS (mega samples per second).
2. Resolution: 18-bit resolution for high precision.
3. Input Range: ±10 V bipolar or 0 to 10 V unipolar input range.
4. Architecture: Uses a successive approximation register (SAR) architecture for speed and efficiency.
5. Low Power Consumption: Consumes as little as 40 mW during operation, making it suitable for battery-powered applications.
6. Digital Output: Offers both parallel and serial (SPI) digital output interfaces.
7. Built-in Reference: Internal voltage reference simplifies design.
8. Performance: Excellent linearity, low noise, and high signal-to-noise ratio (SNR).
9. Temperature Range: Operates in industrial temperature ranges (-40°C to +85°C).
These features make the AD7678ASTZ ideal for applications in industrial automation, medical instrumentation, and data acquisition systems.

Package

The AD7678ASTZ is offered in a 32-lead LFCSP (Lead Frame Chip Scale Package) with a 5mm x 5mm footprint. This package type provides a compact size suitable for high-performance applications while ensuring good thermal and electrical performance.

Pinout

The AD7678ASTZ is a 16-bit, 8-channel, successive approximation ADC from Analog Devices. It features a total of 48 pins.
Key functions of its pins include:
1. Power Supply Pins: VDD and VSS for power connections.
2. Reference Input: VREF for setting the reference voltage.
3. Analog Inputs: AIN0 to AIN7 for connecting the input signals.
4. Digital Data Output: D0 to D15 for the 16-bit digital output.
5. Control Pins: CS (Chip Select), RD (Read), WR (Write), and RESET for controlling operation modes.
6. Clock Input: CLK for synchronizing the internal operations.
7. Serial Interface: SDO (Serial Data Output), SDI (Serial Data Input), and SCK (Serial Clock) for SPI communication.
The AD7678 operates in both parallel and serial modes, providing flexibility for integration into various applications.

Manufacturer

The AD7678ASTZ is manufactured by Analog Devices, Inc. Analog Devices is a global semiconductor company that specializes in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965 and headquartered in Norwood, Massachusetts, Analog Devices serves various industries, including automotive, communications, consumer electronics, and industrial automation. The company is known for its innovation in signal processing technology and provides solutions that enable the conversion of real-world phenomena into digital signals, enhancing data acquisition and processing capabilities in numerous applications.

Application

The AD7678ASTZ is a 16-bit, 1 MSPS ADC suitable for various application areas, including industrial automation, data acquisition systems, medical instrumentation, and portable test equipment. It is also used in communication systems, automotive sensors, and control systems where high precision and fast data conversion are essential. Its low power consumption and high performance make it ideal for battery-operated devices and remote monitoring applications.

Equivalent

The AD7678ASTZ is a 16-bit, 1 MSPS ADC. Equivalent products include:
1. MCP3201 - 12-bit, 100 kSPS.
2. MAX11614 - 12-bit, 1 MSPS.
3. AD7980 - 16-bit, 1 MSPS.
4. LTC1867 - 16-bit, 1 MSPS.
5. ADS8353 - 16-bit, 1 MSPS.
These alternatives vary in specifications, so it’s essential to consider their specific requirements for compatibility.

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