LTC2482IDD#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Analog-to-Digital Converter (ADC)

Characteristics: - High-resolution ADC - Low noise and low power consumption - Differential input voltage measurement - Serial interface for communication with microcontrollers - Internal reference voltage

Package: 10-Lead DFN (3mm x 3mm)

Essence: The LTC2482IDD#PBF is a high-performance, low-power, 24-bit analog-to-digital converter designed for precision measurements in various applications.

Packaging/Quantity: The LTC2482IDD#PBF is available in tape and reel packaging, with a minimum order quantity of 250 units.

Specifications

• Resolution: 24 bits
• Input Voltage Range: ±VREF
• Supply Voltage Range: 2.7V to 5.5V
• Conversion Rate: Up to 7.5 samples per second
• Operating Temperature Range: -40°C to +85°C
• Power Consumption: 300µA (typical)
• Interface: I2C-compatible serial interface

Pin Configuration

The LTC2482IDD#PBF has the following pin configuration:

1. SDA: Serial Data Input/Output
2. SCL: Serial Clock Input
3. VIN+: Positive Differential Input
4. VIN-: Negative Differential Input
5. GND: Ground
6. VDD: Supply Voltage
7. REF: Reference Voltage Output
8. AGND: Analog Ground
9. NC: No Connection
10. NC: No Connection

Functional Features

• High-resolution conversion: The LTC2482IDD#PBF offers 24-bit resolution, allowing for precise measurements.
• Low noise performance: The device features low noise levels, ensuring accurate data acquisition.
• Low power consumption: With a typical power consumption of 300µA, the LTC2482IDD#PBF is suitable for battery-powered applications.
• Differential input voltage measurement: The ADC supports differential voltage measurements, enabling the measurement of signals with common-mode noise rejection.
• Serial interface: The I2C-compatible serial interface allows easy communication with microcontrollers and other digital devices.
• Internal reference voltage: The device includes an internal reference voltage, eliminating the need for an external reference.

Advantages and Disadvantages

Advantages: - High resolution for precise measurements - Low noise performance ensures accurate data acquisition - Low power consumption extends battery life - Differential input voltage measurement improves signal integrity - Easy integration with microcontrollers through the serial interface - Internal reference voltage simplifies circuit design

Disadvantages: - Limited conversion rate compared to some other ADCs - Higher cost compared to lower-resolution alternatives

Working Principles

The LTC2482IDD#PBF operates on the principle of successive approximation. It converts analog input voltages into digital representations using a 24-bit resolution. The device utilizes an internal reference voltage and employs a delta-sigma architecture to achieve high accuracy and low noise performance.

During conversion, the differential input voltage is sampled and processed by the internal ADC core. The resulting digital output is then made available through the serial interface for further processing or display.

Detailed Application Field Plans

The LTC2482IDD#PBF finds application in various fields that require high-precision analog-to-digital conversion. Some potential application areas include:

1. Industrial instrumentation: The ADC can be used in industrial monitoring systems, data loggers, and process control equipment to accurately measure sensor outputs.
2. Medical devices: The high resolution and low noise characteristics make it suitable for medical instruments such as patient monitors, blood pressure monitors, and ECG machines.
3. Test and measurement equipment: The LTC2482IDD#PBF can be integrated into oscilloscopes, spectrum analyzers, and other test instruments to capture and analyze analog signals with high precision.
4. Energy management systems: The ADC can be utilized in energy monitoring devices, smart meters, and power quality analyzers to measure voltage and current waveforms accurately.

Detailed and Complete Alternative Models

1. ADS124S08: 24-bit, low-power, delta-sigma ADC from Texas Instruments.
2. MCP3551: 22-bit, low-noise, delta-sigma ADC from Microchip Technology.
3. MAX11270: 24-bit, ultra-low-power, sigma-delta ADC from Maxim Integrated.

These alternative models offer similar resolution and performance characteristics to the LTC2482IDD#PBF and can be considered as alternatives based on specific application requirements.

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