ADS7817UC/2K5

Product Overview

Category

The ADS7817UC/2K5 belongs to the category of analog-to-digital converters (ADCs).

Use

This product is used to convert analog signals into digital data for processing and analysis in various applications.

Characteristics

• High-resolution: The ADS7817UC/2K5 offers a resolution of 12 bits, providing accurate conversion of analog signals.
• Low power consumption: It operates at low power, making it suitable for battery-powered devices.
• Small package size: The ADS7817UC/2K5 comes in a compact package, allowing for space-efficient designs.
• Wide input voltage range: It can handle a wide range of input voltages, making it versatile for different signal levels.
• Serial interface: The ADC communicates with the microcontroller or other digital devices through a serial interface.

Package and Quantity

The ADS7817UC/2K5 is available in a small outline integrated circuit (SOIC) package. It is typically sold in reels containing a quantity of 2500 units.

Specifications

• Resolution: 12 bits
• Input voltage range: 0V to Vref
• Conversion time: 8 µs (typical)
• Operating temperature range: -40°C to +85°C
• Supply voltage: 2.7V to 5.25V
• Power consumption: 1.1 mW (typical)

Pin Configuration

The ADS7817UC/2K5 has a total of 8 pins, which are assigned specific functions as follows:

1. VDD: Power supply voltage
2. GND: Ground reference
3. CS: Chip select input
4. SCLK: Serial clock input
5. DIN: Serial data input
6. DOUT: Serial data output
7. AGND: Analog ground reference
8. REF: Reference voltage input

Functional Features

• High-speed conversion: The ADS7817UC/2K5 can perform conversions at a high speed, allowing for real-time data acquisition.
• Low noise performance: It offers low noise levels, ensuring accurate and reliable signal conversion.
• Programmable gain amplifier: The ADC includes a programmable gain amplifier that allows for amplification of weak signals.
• Internal reference voltage: It features an internal reference voltage source, eliminating the need for an external reference.

Advantages and Disadvantages

Advantages

• High resolution enables precise measurement and analysis.
• Low power consumption extends battery life in portable devices.
• Small package size facilitates compact designs.
• Wide input voltage range accommodates various signal levels.
• Serial interface simplifies integration with digital systems.

Disadvantages

• Limited to 12-bit resolution, which may not be sufficient for some applications requiring higher precision.
• Requires an external microcontroller or digital device for data processing and analysis.

Working Principles

The ADS7817UC/2K5 operates based on the successive approximation register (SAR) architecture. It samples the analog input voltage and converts it into a digital representation using a binary search algorithm. The internal circuitry compares the input voltage with a reference voltage and determines the digital code corresponding to the input voltage level.

Detailed Application Field Plans

The ADS7817UC/2K5 finds application in various fields, including but not limited to: - Industrial automation - Medical equipment - Data acquisition systems - Instrumentation and measurement devices - Consumer electronics

Alternative Models

1. ADS7816UC/2K5: Similar to ADS7817UC/2K5 but with 10-bit resolution.
2. ADS7818UC/2K5: Similar to ADS7817UC/2K5 but with 14-bit resolution.
3. ADS7822UC/2K5: Similar to ADS7817UC/2K5 but with dual-channel capability.

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

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