ADS7817E/250G4

Product Overview

• Category: Analog-to-Digital Converter (ADC)
• Use: Converts analog signals into digital data
• Characteristics: High resolution, low power consumption, small package size
• Package: 16-pin SOIC (Small Outline Integrated Circuit)
• Essence: Provides accurate and reliable conversion of analog signals to digital format
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Resolution: 12 bits
• Conversion Rate: Up to 200 kilosamples per second (ksps)
• Input Voltage Range: 0 to Vref (Reference Voltage)
• Power Supply: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ADS7817E/250G4 has a total of 16 pins. The pin configuration is as follows:

1. VDD: Power supply voltage
2. REF: Reference voltage input
3. AGND: Analog ground
4. VIN: Analog input voltage
5. VOUT: Digital output voltage
6. CS: Chip select input
7. SCLK: Serial clock input
8. SDATA: Serial data output
9. DGND: Digital ground
10. NC: No connection
11. NC: No connection
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. VSS: Ground

Functional Features

• High-resolution ADC with 12-bit accuracy
• Fast conversion rate of up to 200 ksps
• Low power consumption for energy-efficient operation
• Wide input voltage range allows for versatile applications
• Small package size enables space-saving designs
• Serial interface for easy integration with microcontrollers

Advantages and Disadvantages

Advantages: - High resolution provides accurate conversion of analog signals - Fast conversion rate allows for real-time data acquisition - Low power consumption extends battery life in portable devices - Small package size enables compact circuit board designs - Serial interface simplifies integration with microcontrollers

Disadvantages: - Limited input voltage range may not be suitable for high-voltage applications - Requires an external reference voltage for accurate conversions - May require additional components for noise filtering and signal conditioning

Working Principles

The ADS7817E/250G4 operates based on the successive approximation register (SAR) architecture. It uses a capacitor-based digital-to-analog converter (DAC) to compare the input analog voltage with a reference voltage. The SAR algorithm iteratively adjusts the DAC's output until it matches the input voltage, resulting in a digital representation of the analog signal.

Detailed Application Field Plans

The ADS7817E/250G4 is commonly used in various applications, including:

1. Industrial automation: Monitoring and control systems that require precise analog-to-digital conversion.
2. Medical equipment: Vital sign monitoring devices, patient monitoring systems, and medical imaging equipment.
3. Test and measurement instruments: Oscilloscopes, data loggers, and signal analyzers.
4. Communication systems: Digital radios, base stations, and wireless transceivers.
5. Consumer electronics: Audio equipment, digital cameras, and portable media players.

Detailed and Complete Alternative Models

1. ADS7816: 12-bit ADC with lower conversion rate (100 ksps)
2. ADS7818: 12-bit ADC with higher conversion rate (250 ksps)
3. ADS7822: 12-bit ADC with integrated multiplexer for multiple input channels
4. ADS7830: 8-channel, 12-bit ADC with I2C interface
5. ADS7870: 14-bit ADC with higher resolution and lower conversion rate

These alternative models offer different features and specifications to cater to specific application requirements.

Word count: 399 words