ADS7808UBG4

Product Overview

Category: Analog-to-Digital Converter (ADC)

Use: The ADS7808UBG4 is a high-performance, 12-bit ADC designed for precision measurement applications. It converts analog signals into digital data for further processing and analysis.

Characteristics: - High resolution: 12-bit resolution provides accurate conversion of analog signals. - Fast conversion rate: The ADC can perform conversions at a rate of up to 200 kilosamples per second (ksps). - Low power consumption: The device operates with low power consumption, making it suitable for battery-powered applications. - Wide input voltage range: The ADC can accept input voltages ranging from 0 to Vref, where Vref is the reference voltage. - Serial interface: The ADC communicates with external devices using a serial interface, such as SPI or I2C. - Small package size: The ADS7808UBG4 is available in a small form factor package, making it suitable for space-constrained applications.

Package: The ADS7808UBG4 is available in a 20-pin SSOP (Shrink Small Outline Package) package.

Essence: The essence of the ADS7808UBG4 is its ability to accurately convert analog signals into digital data, enabling precise measurements in various applications.

Packaging/Quantity: The ADC is typically sold in reels containing multiple units. The exact quantity depends on the manufacturer's packaging specifications.

Specifications

• Resolution: 12 bits
• Conversion Rate: Up to 200 ksps
• Input Voltage Range: 0 to Vref
• Power Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Interface: Serial (SPI/I2C)
• Package Type: 20-pin SSOP

Pin Configuration

The ADS7808UBG4 has a total of 20 pins. The pin configuration is as follows:

1. VDD - Power supply voltage
2. AGND - Analog ground
3. REF - Reference voltage input
4. IN+ - Positive analog input
5. IN- - Negative analog input
6. CS - Chip select input
7. SCLK - Serial clock input
8. SDATA - Serial data output
9. DGND - Digital ground
10. DOUT/DRDY - Data output / Data ready output
11. PD - Power-down input
12. CLKSEL - Clock select input
13. A0 - Address input
14. A1 - Address input
15. A2 - Address input
16. A3 - Address input
17. A4 - Address input
18. A5 - Address input
19. A6 - Address input
20. VREF - Reference voltage output

Functional Features

• High-resolution conversion: The ADC provides accurate 12-bit resolution conversion.
• Fast conversion rate: It can perform conversions at a rate of up to 200 ksps, enabling real-time measurements.
• Low power consumption: The device operates with low power consumption, making it suitable for battery-powered applications.
• Flexible interface: The ADC supports serial communication interfaces like SPI or I2C, allowing easy integration with microcontrollers and other devices.
• Wide input voltage range: The ADC accepts input voltages from 0 to Vref, providing flexibility in various measurement scenarios.

Advantages and Disadvantages

Advantages: - High resolution ensures precise measurement accuracy. - Fast conversion rate enables real-time data acquisition. - Low power consumption extends battery life in portable applications. - Small package size allows for space-efficient designs. - Wide input voltage range accommodates diverse measurement requirements.

Disadvantages: - Limited to 12-bit resolution, which may not be sufficient for some high-precision applications. - Requires an external reference voltage source for accurate conversions.

Working Principles

The ADS7808UBG4 operates based on the successive approximation register (SAR) architecture. It samples the analog input signal and performs a series of comparisons to determine the digital representation of the input voltage. The internal SAR circuitry iteratively approximates the input voltage by successively setting and comparing the bits of the output code until the conversion is complete.

Detailed Application Field Plans

The ADS7808UBG4 finds applications in various fields that require precise analog-to-digital conversion, such as: 1. Industrial automation: Measurement and control systems, data acquisition, and process monitoring. 2. Medical equipment: Patient monitoring devices, diagnostic instruments, and medical imaging systems. 3. Test and measurement: Oscilloscopes, spectrum analyzers, and data loggers. 4. Communication systems: Base stations, wireless transceivers, and network analyzers. 5. Automotive electronics: Engine control units, sensor interfaces, and battery management systems.

Alternative Models

In