LTC2485CDD#PBF

Product Overview

Category

The LTC2485CDD#PBF belongs to the category of analog-to-digital converters (ADCs).

Use

It is commonly used for converting analog signals into digital data in various applications.

Characteristics

• High precision: The LTC2485CDD#PBF offers high-resolution conversion with low noise, ensuring accurate measurement.
• Low power consumption: It operates at a low supply voltage and consumes minimal power, making it suitable for battery-powered devices.
• Wide input voltage range: The ADC can handle a wide range of input voltages, allowing for versatile use in different systems.
• Integrated features: The LTC2485CDD#PBF includes built-in temperature sensors and reference voltage generators, enhancing its functionality.

Package

The LTC2485CDD#PBF comes in a DFN (Dual Flat No-Lead) package, which provides compactness and ease of integration into electronic circuits.

Essence

The essence of the LTC2485CDD#PBF lies in its ability to accurately convert analog signals into digital data, enabling precise measurements and control in various applications.

Packaging/Quantity

The LTC2485CDD#PBF is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Resolution: The ADC has a resolution of up to 24 bits, allowing for highly detailed digital representation of analog signals.
• Sampling Rate: It supports a maximum sampling rate of 15 samples per second, ensuring real-time data acquisition.
• Input Voltage Range: The LTC2485CDD#PBF can handle input voltages ranging from -10V to +10V, providing flexibility in signal measurement.
• Supply Voltage: It operates within a supply voltage range of 2.7V to 5.5V, accommodating various power supply configurations.
• Operating Temperature Range: The ADC can operate within a temperature range of -40°C to +85°C, making it suitable for both industrial and consumer applications.

Detailed Pin Configuration

The LTC2485CDD#PBF has the following pin configuration:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. SDA: Serial data output/input
4. SCL: Serial clock input
5. ADDR: Address selection input
6. REF: Reference voltage input
7. IN+: Positive analog input
8. IN-: Negative analog input

Functional Features

• High-resolution conversion: The LTC2485CDD#PBF provides accurate conversion of analog signals into digital data with up to 24-bit resolution.
• Low noise performance: It offers low noise levels, ensuring precise measurement even in noisy environments.
• Integrated temperature sensor: The built-in temperature sensor allows for simultaneous measurement of temperature along with analog signal conversion.
• On-chip reference voltage generator: The ADC includes an integrated reference voltage generator, eliminating the need for external references.
• I2C interface: The LTC2485CDD#PBF utilizes the I2C communication protocol for easy integration with microcontrollers and other digital devices.

Advantages and Disadvantages

Advantages

• High precision and accuracy
• Low power consumption
• Wide input voltage range
• Integrated temperature sensor and reference voltage generator
• Compact package for easy integration

Disadvantages

• Relatively low sampling rate compared to some other ADCs
• Limited to I2C interface for communication

Working Principles

The LTC2485CDD#PBF operates based on the successive approximation register (SAR) architecture. It converts analog signals into digital data by comparing the input voltage with a reference voltage and iteratively adjusting the digital representation until a close match is achieved. The conversion process is controlled by an internal clock and the I2C interface.

Detailed Application Field Plans

The LTC2485CDD#PBF finds applications in various fields, including:

1. Industrial automation: It can be used for precise measurement and control of analog signals in industrial processes.
2. Medical devices: The ADC enables accurate data acquisition in medical equipment, such as patient monitoring systems and diagnostic instruments.
3. Environmental monitoring: It can be utilized for measuring environmental parameters, such as temperature, humidity, and pressure.
4. Energy management: The LTC2485CDD#PBF can be employed in energy monitoring systems to measure power consumption accurately.
5. Test and measurement: It is suitable for high-precision measurement applications, including laboratory equipment and data acquisition systems.

Detailed and Complete Alternative Models

1. LTC2440: A 24-bit ADC with similar characteristics and performance to the LTC2485CDD#PBF.
2. ADS124S08: An 8-channel, 24-bit ADC with integrated programmable gain amplifiers (PGAs).
3. MCP3421: A low