LTC2420IS8

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LTC2420IS8

IC ADC 20BIT MICROPOWER 8SOIC

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  • Mfr.부분 #LTC2420IS8
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사양

Series microPOWER™
Part Status Discontinued at Digi-Key
Number of Bits 20
Sampling Rate (Per Second) 7.5
Number of Inputs 1
Input Type Single Ended
Data Interface SPI
Configuration ADC
Number of A/D Converters 1
Architecture Sigma-Delta
Reference Type External
Voltage - Supply, Analog 2.7V ~ 5.5V
Voltage - Supply, Digital 2.7V ~ 5.5V
Operating Temperature -40°C ~ 85°C
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SO
Mounting Type Surface Mount
Base Product Number LTC2420

개요

Description

The LTC2420IS8 is a 24-bit delta-sigma analog-to-digital converter (ADC) designed for high-precision applications. It features a serial interface for easy communication with microcontrollers and digital signal processors. With a low noise floor and high linearity, the LTC2420 provides excellent dynamic performance, making it suitable for applications requiring accurate measurement of low-level signals, such as in industrial, medical, and instrumentation systems.
Its key specifications include a power supply range of 2.7V to 5.5V, a maximum sampling rate of 240 Hz, and a drift of less than 5 ppm/°C. The device also includes a built-in reference and offers programmable gain options, enhancing its versatility in various applications.
With its low power consumption and small package size, the LTC2420IS8 is ideal for battery-operated devices and space-constrained designs. Overall, it delivers a combination of precision, ease of use, and reliability, making it a preferred choice for engineers seeking high-performance ADC solutions.

Features

The LTC2420IS8 is a high-performance, low-power 24-bit analog-to-digital converter (ADC) designed for precision applications. Key features include:
1. High Resolution: Provides 24-bit resolution for accurate measurements.
2. Low Noise: Achieves low noise performance, ensuring high signal integrity.
3. Differential Inputs: Supports differential input signals, enhancing common-mode rejection.
4. Integrated Reference: Includes an internal voltage reference, simplifying design and reducing external component count.
5. Power Supply: Operates from a single supply voltage, typically ranging from 2.7V to 5.5V.
6. Low Power Consumption: Consumes only 1.5 mA in active mode, making it suitable for battery-powered applications.
7. Serial Interface: Utilizes a SPI-compatible interface for easy communication with microcontrollers.
8. Programmable Gain Amplifier: Features an internal programmable gain amplifier for flexible input signal scaling.
9. Temperature Range: Operates in a wide temperature range, suitable for various environments.
These features make the LTC2420IS8 ideal for applications in industrial, medical, and automotive fields, where precision and reliability are crucial.

Package

The LTC2420IS8 is available in an 8-lead SOIC (Small Outline Integrated Circuit) package. This package type features a flat profile and is designed for surface mounting, making it suitable for compact circuit board layouts.

Pinout

The LTC2420IS8 is an integrated 24-bit delta-sigma analog-to-digital converter (ADC) with a pin count of 8 pins.
Pin Functions:
1. VDD - Power supply input (typically +2.7V to +5.25V).
2. AGND - Analog ground reference.
3. SCK - Serial clock input for communication.
4. SDI - Serial data input for configuration.
5. SDO - Serial data output for conversion results.
6. CS - Chip select input to enable or disable the device.
7. REF - Reference voltage input for ADC operation.
8. AIN - Analog input for the signal being converted.
The LTC2420 is designed for high precision and low noise applications, making it suitable for various industrial and medical measurement systems.

Manufacturer

The LTC2420IS8 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, the company focuses on various applications, including industrial, automotive, communications, and consumer electronics. Their products are widely used in data acquisition systems, signal conditioning, and other electronic applications requiring precise and reliable performance.

Application

The LTC2420IS8 is a 24-bit data acquisition device primarily used in precision measurement applications. Its application areas include industrial process control, medical instrumentation, and sensor data acquisition. It is ideal for applications requiring high-resolution analog-to-digital conversion, such as temperature, pressure, and strain measurements. Additionally, it can be utilized in weighing scales, automation systems, and any system demanding accurate and reliable digital output from analog signals.

Equivalent

Equivalent products to the LTC2420IS8 include the following ADCs:
1. INA-ADC Series: Such as the INA-ADC-120, which offers similar specifications.
2. MCP3424: A 4-channel, 18-bit ADC with I2C interface.
3. AD7793: A low-power, 24-bit sigma-delta ADC.
4. MAX126: A 12-bit, serial-output ADC.
Always verify specifications to ensure compatibility for your application.

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