ADS7825U

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ADS7825U

IC ADC 16BIT SAR 28SOIC

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仕様

Part Status Active
Number of Bits 16
Sampling Rate (Per Second) 40k
Number of Inputs 4
Input Type Single Ended
Data Interface SPI, Parallel
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 / Case 28-SOIC (0.295", 7.50mm Width)
Supplier Device Package 28-SOIC
Mounting Type Surface Mount
Base Product Number ADS7825

概要

Description

The ADS7825U is a 12-bit analog-to-digital converter (ADC) from Texas Instruments, designed for precise measurement in various applications. It operates with a single supply voltage ranging from 2.7V to 5.25V, making it suitable for battery-operated devices. The device features a serial interface (SPI-compatible), allowing easy integration with microcontrollers and digital signal processors.
Key specifications include a maximum sampling rate of up to 100 kSPS, low power consumption (typically 2 mW), and an internal reference voltage that can be adjusted to optimize performance. The ADS7825U also includes features like programmable gain amplification and a built-in temperature sensor, enhancing its versatility for applications in industrial, medical, and consumer markets.
Its compact package and low noise make it ideal for applications requiring high precision and reliability, such as data acquisition systems, sensors, and portable instrumentation. Overall, the ADS7825U is a robust choice for engineers looking to implement accurate analog signal processing in their designs.

Features

The ADS7825U is a 12-bit, 1-MSPS, successive-approximation Analog-to-Digital Converter (ADC) designed for low power and high performance. Key features include:
1. Input Voltage Range: Operates with a single supply voltage ranging from 2.7V to 5.25V.
2. Resolution: Offers 12-bit resolution, ideal for various applications requiring moderate accuracy.
3. Sample Rate: Capable of sampling at 1 MSPS, suitable for high-speed data acquisition.
4. Low Power Consumption: Consumes minimal power, enhancing battery life in portable applications.
5. Interface: Provides a simple SPI-compatible interface for data transfer, making integration straightforward.
6. Internal Reference: Features an internal voltage reference, simplifying design and reducing external component count.
7. Differential Inputs: Supports differential input configuration for improved noise performance.
8. Programmable Gain Amplifier (PGA): Includes a PGA to adjust gain, enhancing signal conditioning.
These features make the ADS7825U suitable for a wide range of applications, including industrial instrumentation, medical devices, and data acquisition systems.

Package

The ADS7825U is available in a TSSOP-16 (Thin Shrink Small Outline Package) package type.

Pinout

The ADS7825U is a 12-bit analog-to-digital converter (ADC) with a total of 8 pins. Its pin configuration includes the following key functions:
1. VREF - Reference Voltage Input.
2. AGND - Analog Ground.
3. DVDD - Digital Supply Voltage.
4. DGND - Digital Ground.
5. SCLK - Serial Clock Input for data communication.
6. DIN - Serial Data Input.
7. DOUT - Serial Data Output.
8. CS - Chip Select Input to enable the ADC.
The ADS7825U operates in a single-supply configuration and is designed for low-power applications, providing a maximum sampling rate of 100kSPS. It interfaces via a serial communication protocol, making it suitable for various applications requiring precise digital representation of analog signals.

Manufacturer

The ADS7825U is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, including analog, digital signal processing (DSP), and microcontroller solutions. Founded in 1930, the company has a strong focus on innovation in the fields of electronics and embedded systems. TI serves a wide range of markets, including industrial, automotive, communications, and consumer electronics, providing components that are essential for a variety of applications such as data acquisition, power management, and signal processing.

Application

The ADS7825U is a 12-bit analog-to-digital converter (ADC) suitable for various applications, including industrial automation, data acquisition systems, sensor monitoring, medical devices, and portable instrumentation. Its high accuracy and low power consumption make it ideal for battery-powered devices and systems requiring precise signal processing, such as temperature, pressure, and voltage measurements.

Equivalent

Equivalent products to the ADS7825U chip include the following ADCs:
1. MCP3201 - 12-bit, single-channel.
2. ADS7843 - 12-bit, touch screen controller/ADC.
3. TLV2543 - 12-bit, multi-channel.
4. MAX11100 - 12-bit, low-power, single-channel.
When looking for equivalents, consider resolution, sample rate, and interface compatibility. Always check datasheets for specific application requirements.

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DHL の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は2〜5営業日です。

フェデックス: 配送費は25ドル〜40ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

UPS の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

TNT社: 配送費は25ドル〜65ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

EMS: 配送料金は30〜50ドル(0.5kg)の範囲で、推定配送時間は7〜15営業日です。

登録航空郵便: 配送費は2〜4ドル(0.1kg)で、推定配送時間は5〜20営業日です。

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