LTC2255IUH#TR

Product Overview

Category: Integrated Circuits (ICs)

Use: The LTC2255IUH#TR is a high-speed, 16-bit analog-to-digital converter (ADC) designed for precision data acquisition systems. It is commonly used in applications that require high-resolution and high-speed conversion of analog signals into digital format.

Characteristics: - High resolution: The LTC2255IUH#TR offers a resolution of 16 bits, allowing for precise measurement and conversion of analog signals. - High speed: With a maximum sampling rate of 125 Mega Samples Per Second (MSPS), this ADC can handle fast-changing analog signals with accuracy. - Low power consumption: The LTC2255IUH#TR is designed to operate with low power consumption, making it suitable for portable and battery-powered devices. - Small package: This ADC comes in a compact 32-pin QFN (Quad Flat No-Lead) package, which allows for easy integration into space-constrained designs. - Wide input voltage range: The ADC accepts analog input voltages ranging from -0.3V to VDD+0.3V, providing flexibility in various signal conditioning applications.

Package/Quantity: The LTC2255IUH#TR is available in a 32-pin QFN package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Resolution: 16 bits
• Sampling Rate: Up to 125 MSPS
• Input Voltage Range: -0.3V to VDD+0.3V
• Power Supply: 3.3V
• Operating Temperature Range: -40°C to 85°C
• Package Type: 32-pin QFN

Pin Configuration

The LTC2255IUH#TR has the following pin configuration:

Pin 1: VIN- Pin 2: VIN+ Pin 3: VREF- Pin 4: VREF+ Pin 5: GND Pin 6: CLK- Pin 7: CLK+ Pin 8: CS- Pin 9: CS+ Pin 10: SDI Pin 11: SDO Pin 12: SCK Pin 13: DGND Pin 14: DVDD Pin 15: AVDD Pin 16: REFOUT Pin 17: REFIN Pin 18: VCM Pin 19: VCMO Pin 20: VCM1 Pin 21: VCM2 Pin 22: VCM3 Pin 23: VCM4 Pin 24: VCM5 Pin 25: VCM6 Pin 26: VCM7 Pin 27: VCM8 Pin 28: VCM9 Pin 29: VCM10 Pin 30: VCM11 Pin 31: VCM12 Pin 32: VCM13

Functional Features

• High-speed conversion: The LTC2255IUH#TR can convert analog signals into digital format at a high sampling rate of up to 125 MSPS.
• Low noise and distortion: This ADC offers excellent signal-to-noise ratio (SNR) and low total harmonic distortion (THD), ensuring accurate and reliable data acquisition.
• Flexible input range: The ADC accepts a wide range of input voltages, allowing for versatile signal conditioning options.
• Serial interface: The LTC2255IUH#TR features a serial interface (SDI, SDO, SCK) for easy integration with microcontrollers or digital signal processors.

Advantages and Disadvantages

Advantages: - High resolution and accuracy - Fast conversion speed - Low power consumption - Compact package size - Wide input voltage range

Disadvantages: - Limited availability of alternative models - Relatively high cost compared to lower-resolution ADCs

Working Principles

The LTC2255IUH#TR utilizes a successive approximation register (SAR) architecture to convert analog signals into digital format. It employs a sample-and-hold circuit to capture the input voltage, which is then processed by an internal SAR ADC core. The converted digital data is then output through the serial interface.

Application Field Plans

The LTC2255IUH#TR is commonly used in the following application fields: 1. Data acquisition systems 2. Instrumentation and measurement equipment 3. Communication systems 4. Medical imaging devices 5. Industrial automation

Alternative Models

While the LTC2255IUH#TR is a highly capable ADC, there are alternative models available in the market that offer similar functionality. Some notable alternatives include: - AD7768-1 from Analog Devices - MAX11156 from Maxim Integrated - ADS8860 from Texas Instruments

These alternative models provide options for different performance requirements