ADS1255IDBR

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ADS1255IDBR

IC ADC 24BIT SIGMA-DELTA 20SSOP

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  • Mfr。パート #ADS1255IDBR
  • パッケージ SSOP (DB)-20
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仕様

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
NumberofBits 24
SamplingRate(PerSecond) 30k
NumberofInputs 1, 2
InputType Differential, Single Ended
DataInterface SPI
Configuration MUX-PGA-ADC
NumberofA/DConverters 1
Architecture Sigma-Delta
ReferenceType External
Voltage-SupplyAnalog 5V
Voltage-SupplyDigital 1.8V ~ 3.6V
Features PGA
OperatingTemperature -40°C ~ 85°C
Package/Case 20-SSOP (0.209, 5.30mm Width)
SupplierDevicePackage 20-SSOP

概要

Description

The ADS1255IDBR is a high-precision, 24-bit analog-to-digital converter (ADC) designed for low-noise, high-speed applications. It features a differential input structure, allowing it to measure small signals accurately while rejecting common-mode noise. With a maximum sample rate of 30 kSPS and an integrated programmable gain amplifier (PGA), it can amplify signals ranging from ±0.256V to ±256V, making it versatile for various sensor applications.
The device includes built-in features like a reference voltage source, an internal oscillator, and digital filters, which simplify design and enhance performance in data acquisition systems. The ADS1255IDBR operates on a supply voltage of 2.7V to 5.25V and communicates via a SPI interface, enabling easy integration with microcontrollers and digital signal processors.
It is widely used in medical devices, industrial automation, and portable instrumentation, where high accuracy and reliability are critical. Its compact package (TQFP-32) facilitates efficient PCB design, making it a popular choice among engineers looking for a robust ADC solution.

Features

The ADS1255IDBR is a high-performance, 24-bit analog-to-digital converter (ADC) designed for precision applications. Key features include:
1. Resolution: 24-bit conversion, offering high precision.
2. Data Rate: Supports up to 30 kSPS (samples per second) for fast signal conversion.
3. Input Channels: 5 differential or 8 single-ended inputs, allowing for versatile signal handling.
4. Low Noise: Achieves low noise performance, ideal for sensitive applications.
5. Integrated PGA: Features a programmable gain amplifier (PGA) to enhance signal levels.
6. Internal Oscillator: Includes an internal oscillator, simplifying design and reducing component count.
7. Digital Filter: Offers a built-in digital filter for improved signal integrity.
8. Power Supply: Operates from a single 5V power supply, enabling easy integration.
9. Interface: SPI-compatible interface for straightforward communication with microcontrollers and processors.
10. Temperature Range: Designed for industrial applications with an extended temperature range.
These features make the ADS1255IDBR suitable for applications like industrial automation, data acquisition, and sensor interfacing.

Package

The ADS1255IDBR is packaged in a TQFP (Thin Quad Flat Package), specifically a 32-pin version. This package type is designed for surface-mount applications, facilitating efficient thermal and electrical performance in compact designs.

Pinout

The ADS1255IDBR is a 24-bit Analog-to-Digital Converter (ADC) with a total of 28 pins in a TSSOP package.
Key pin functions include:
1. Power Supply Pins:
- VDD (Power): Supply voltage.
- AGND (Analog Ground): Ground reference for analog signals.
- DGND (Digital Ground): Ground reference for digital signals.
2. Input Pins:
- AIN0 to AIN5: Analog input channels for differential signal measurement.
3. Digital Interface:
- SCLK (Serial Clock): Clock input for SPI communication.
- DIN (Data Input): Serial data input for configuration.
- DOUT (Data Output): Serial data output for converted data.
- CSB (Chip Select): Enables the device for communication.
4. Control Pins:
- DRDY (Data Ready): Indicates when the data is ready to be read.
- START: Initiates the conversion process.
- RESET: Resets the device.
5. Reference Pins:
- VREFP and VREFN: Positive and negative references for the ADC.
These functions enable precise measurement and communication for various applications in sensor interfaces and data acquisition systems.

Manufacturer

The ADS1255IDBR is manufactured by Texas Instruments (TI), a leading global semiconductor company. Texas Instruments designs and produces a wide range of analog and digital semiconductor solutions, including integrated circuits (ICs), processors, and microcontrollers. Established in 1930, TI is known for its innovations in signal processing, power management, and embedded systems. The company serves various industries, including automotive, industrial, communications, and consumer electronics. The ADS1255IDBR specifically is a high-precision, 24-bit analog-to-digital converter (ADC) designed for applications requiring accurate data acquisition and measurement.

Application

The ADS1255IDBR is a 24-bit analog-to-digital converter (ADC) commonly used in precision measurement applications. Its main application areas include industrial automation, medical instrumentation, weighing scales, data acquisition systems, and sensor interfacing. It is ideal for tasks requiring high-resolution data, such as strain gauge measurements, thermocouple readings, and other low-level signal processing applications.

Equivalent

Equivalent products to the ADS1255IDBR chip include the following ADCs:
1. AD7799 - Analog Devices
2. LTC2415 - Analog Devices
3. MCP3551 - Microchip
4. MAX11210 - Maxim Integrated
5. INA3221 - Texas Instruments (focus on similar features)
These alternatives may vary in specifications such as resolution, sampling rate, and interface, so it's essential to review datasheets for exact compatibility.

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出荷料参照(DHL/FedEx):

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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