MCP3002T-I/ST

Product Overview

Category

The MCP3002T-I/ST belongs to the category of analog-to-digital converters (ADCs).

Use

This product is used to convert analog signals into digital data, making it suitable for various applications that require accurate and precise measurements.

Characteristics

• High resolution: The MCP3002T-I/ST offers a resolution of 10 bits, allowing for detailed and accurate conversion of analog signals.
• Low power consumption: This ADC operates at low power, making it energy-efficient and suitable for battery-powered devices.
• Small package size: The MCP3002T-I/ST comes in a small SOT-23 package, which makes it ideal for space-constrained applications.
• Wide voltage range: It can operate within a wide voltage range, from 2.7V to 5.5V, providing flexibility in different power supply scenarios.

Package and Quantity

The MCP3002T-I/ST is available in a surface-mount SOT-23 package. It is typically sold in reels containing a quantity of 3,000 units.

Specifications

• Resolution: 10 bits
• Input Voltage Range: 0V to Vref
• Conversion Time: 200 µs (typical)
• Operating Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MCP3002T-I/ST has a total of 8 pins, as follows:

1. VDD - Power supply voltage input
2. VREF - Reference voltage input
3. AGND - Analog ground
4. CLK - Serial clock input
5. DOUT - Digital output
6. DIN - Serial data input
7. CS - Chip select input
8. DGND - Digital ground

Functional Features

• Successive Approximation Register (SAR) architecture: The MCP3002T-I/ST utilizes SAR technology to achieve accurate analog-to-digital conversion.
• SPI Interface: It communicates with the microcontroller or other devices using the Serial Peripheral Interface (SPI) protocol.
• Differential Input Channels: This ADC has two differential input channels, allowing for the measurement of voltage differences between two signals.

Advantages and Disadvantages

Advantages

• High resolution enables precise measurements.
• Low power consumption makes it suitable for battery-powered applications.
• Small package size allows for space-saving designs.
• Wide operating voltage range provides flexibility in various power supply scenarios.

Disadvantages

• Limited number of input channels compared to some other ADCs.
• Requires an external reference voltage source.

Working Principles

The MCP3002T-I/ST operates by sampling the analog input voltage and converting it into a digital value using the SAR technique. The analog signal is compared to a reference voltage, and the converter determines the digital representation based on this comparison.

Application Field Plans

The MCP3002T-I/ST can be used in various applications, including but not limited to: - Sensor interfaces - Data acquisition systems - Industrial automation - Medical equipment - Consumer electronics

Alternative Models

• MCP3004: 10-bit ADC with four input channels
• MCP3202: 12-bit ADC with two input channels
• ADS1115: 16-bit ADC with four input channels

These alternative models offer different features and specifications, providing options for specific application requirements.

In conclusion, the MCP3002T-I/ST is a high-resolution analog-to-digital converter that offers low power consumption and a small package size. Its wide voltage range and SAR architecture make it suitable for various applications. However, it has a limited number of input channels and requires an external reference voltage source. Alternative models with different specifications are available to cater to specific needs.