LTC2181CUP#TRPBF

Product Overview

Category

LTC2181CUP#TRPBF belongs to the category of analog-to-digital converters (ADCs).

Use

This product is primarily used for converting analog signals into digital format, making it suitable for various applications in industries such as telecommunications, medical devices, and industrial automation.

Characteristics

• High-resolution: The LTC2181CUP#TRPBF offers a resolution of up to 18 bits, ensuring accurate conversion of analog signals.
• Low power consumption: This ADC operates at low power levels, making it energy-efficient and suitable for battery-powered devices.
• Fast sampling rate: With a maximum sampling rate of 125 mega-samples per second (MSPS), it can handle high-frequency signals effectively.
• Wide input voltage range: The LTC2181CUP#TRPBF supports a wide input voltage range, allowing it to process signals from various sources.
• Small package size: It comes in a compact package, enabling space-saving designs in electronic systems.

Package and Quantity

The LTC2181CUP#TRPBF is available in a 48-pin QFN (Quad Flat No-Lead) package. It is typically sold in reels containing a specified quantity, usually around 250 units per reel.

Specifications

• Resolution: Up to 18 bits
• Sampling Rate: Up to 125 MSPS
• Input Voltage Range: ±2.5V
• Power Supply: 3.3V
• Operating Temperature Range: -40°C to 85°C
• Package Type: 48-pin QFN

Pin Configuration

The LTC2181CUP#TRPBF has a total of 48 pins. Here is a detailed pin configuration:

Pin Number | Pin Name | Description -----------|----------|------------ 1 | VIN(+) | Positive Analog Input 2 | VIN(-) | Negative Analog Input 3 | VREF | Reference Voltage Input 4 | VCM | Common Mode Voltage Output 5 | VDD | Power Supply 6-9 | DGND | Digital Ground 10-17 | D[17:0] | Digital Output Data 18 | CS | Chip Select 19 | SCK | Serial Clock Input 20 | SDI | Serial Data Input 21 | SDO | Serial Data Output 22 | SDO/SDO2 | Serial Data Output / Daisy Chain Output 23 | SDI/SDI2 | Serial Data Input / Daisy Chain Input 24 | SCK/SCK2 | Serial Clock Input / Daisy Chain Clock Input 25 | CS/CS2 | Chip Select / Daisy Chain Chip Select 26-33 | AGND | Analog Ground 34 | REFOUT | Reference Output 35 | REFIN | Reference Input 36-48 | NC | No Connection

Functional Features

• High-resolution conversion: The LTC2181CUP#TRPBF provides accurate and precise analog-to-digital conversion with its high-resolution capability.
• Low power consumption: It operates at low power levels, making it suitable for power-sensitive applications.
• Flexible interface: The ADC supports a serial interface, allowing easy integration into various digital systems.
• Daisy chain capability: It offers daisy chain functionality, enabling multiple devices to be connected in series for synchronized data transfer.

Advantages and Disadvantages

Advantages

• High resolution ensures accurate signal conversion.
• Low power consumption makes it energy-efficient.
• Fast sampling rate enables the processing of high-frequency signals.
• Wide input voltage range allows compatibility with various signal sources.
• Compact package size saves space in electronic designs.

Disadvantages

• Limited to a maximum sampling rate of 125 MSPS, which may not be sufficient for certain high-speed applications.
• Requires an external reference voltage source for operation.

Working Principles

The LTC2181CUP#TRPBF operates based on the successive approximation register (SAR) architecture. It converts analog signals into digital format by comparing the input voltage with a reference voltage and generating a binary code representing the analog value. The internal circuitry performs a series of comparisons and adjustments to achieve accurate conversion.

Detailed Application Field Plans

The LTC2181CUP#TRPBF finds applications in various fields, including:

1. Telecommunications: Used in communication systems for converting analog signals into digital data for processing and transmission.
2. Medical Devices: Employed in medical equipment such as patient monitoring systems and imaging devices to convert analog signals from sensors into digital form for analysis.
3. Industrial Automation: Integrated into industrial control systems for digitizing analog signals from sensors and actuators, enabling precise control and monitoring.

Detailed and Complete