AD7880CRZ

Product Overview

Category: Analog-to-Digital Converter (ADC)

Use: The AD7880CRZ is a high-performance, 12-bit successive approximation register (SAR) ADC. It is designed to convert analog signals into digital data with high accuracy and speed.

Characteristics: - Resolution: 12 bits - Sampling Rate: Up to 1 MSPS (Mega Samples Per Second) - Input Voltage Range: 0V to VREF - Power Supply: +5V - Low Power Consumption: 2.3mW at 1 MSPS - Small Package Size: 16-lead TSSOP

Package: The AD7880CRZ is available in a 16-lead thin shrink small outline package (TSSOP). This package offers excellent thermal performance and allows for easy integration into various electronic systems.

Essence: The essence of the AD7880CRZ lies in its ability to accurately convert analog signals into digital data, making it suitable for a wide range of applications that require precise measurements.

Packaging/Quantity: The AD7880CRZ is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Resolution: 12 bits
• Sampling Rate: Up to 1 MSPS
• Input Voltage Range: 0V to VREF
• Power Supply Voltage: +5V ±10%
• Power Consumption: 2.3mW at 1 MSPS
• Operating Temperature Range: -40°C to +85°C
• Package Type: 16-lead TSSOP

Detailed Pin Configuration

The AD7880CRZ has a total of 16 pins, each serving a specific function. Here is the detailed pin configuration:

1. REFOUT: Reference Output
2. VREF: Reference Voltage Input
3. AGND: Analog Ground
4. VIN: Analog Input
5. VDD: Power Supply
6. D11-D0: Digital Output Bits
7. CS: Chip Select
8. SCLK: Serial Clock Input
9. SDATA: Serial Data Output
10. DGND: Digital Ground
11. RDY/BSY: Ready/Busy Indicator
12. CONVST: Conversion Start Input
13. RFS: Reference Feedthrough Suppression
14. CLKOUT: Clock Output
15. REFSEL: Reference Selection
16. PD: Power-Down Control

Functional Features

1. High Resolution: The AD7880CRZ offers a resolution of 12 bits, allowing for precise measurement and conversion of analog signals.
2. Fast Sampling Rate: With a maximum sampling rate of 1 MSPS, the ADC can quickly capture and convert analog data into digital form.
3. Low Power Consumption: The ADC consumes only 2.3mW of power at the maximum sampling rate, making it suitable for low-power applications.
4. Wide Input Voltage Range: The input voltage range of 0V to VREF allows for versatile signal measurements across various voltage levels.
5. Easy Integration: The small package size and standard pin configuration make it easy to integrate the ADC into different electronic systems.

Advantages and Disadvantages

Advantages: - High resolution for accurate measurements - Fast sampling rate for real-time data acquisition - Low power consumption for energy-efficient designs - Wide input voltage range for versatile applications - Easy integration into electronic systems

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

Working Principles

The AD7880CRZ utilizes the successive approximation register (SAR) architecture to convert analog signals into digital data. It operates by comparing the input voltage with a reference voltage and successively approximating the digital representation of the input signal.

The conversion process starts with the application of a conversion start pulse (CONVST). The ADC then samples the analog input voltage and compares it with different voltage levels using a binary search algorithm. This iterative process continues until the digital output accurately represents the input voltage.

Detailed Application Field Plans

The AD7880CRZ can be used in various applications that require accurate analog-to-digital conversion, such as:

1. Data Acquisition Systems: The ADC can be used in data acquisition systems to convert analog sensor signals into digital form for further processing and analysis.
2. Industrial Automation: It can be employed in industrial automation systems to measure and monitor analog variables like temperature, pressure, and flow rate.
3. Medical Instruments: The ADC is suitable for medical instruments that require precise measurement of physiological signals, such as ECGs and blood pressure monitors.
4. Audio Processing: It can be utilized in audio processing applications, including audio mixers,