AD7989-5BCPZ-R2

Product Overview

Category

AD7989-5BCPZ-R2 belongs to the category of analog-to-digital converters (ADCs).

Use

This product is primarily used for converting analog signals into digital data. It finds applications in various fields such as industrial automation, medical devices, communication systems, and instrumentation.

Characteristics

• High resolution: The AD7989-5BCPZ-R2 offers a resolution of 16 bits, ensuring accurate conversion of analog signals.
• Low power consumption: This ADC operates at low power levels, making it suitable for battery-powered devices.
• Fast conversion rate: With a maximum sampling rate of 1 MSPS (Mega Samples Per Second), it can quickly convert analog signals into digital form.
• Wide input voltage range: The AD7989-5BCPZ-R2 can handle input voltages ranging from 0V to VREF, providing flexibility in signal acquisition.
• Integrated features: It includes an internal reference, temperature sensor, and programmable gain amplifier, enhancing its functionality.

Package and Quantity

The AD7989-5BCPZ-R2 comes in a small form factor package known as LFCSP (Lead Frame Chip Scale Package). It is available in reel packaging with a quantity of 2500 units per reel.

Specifications

• Resolution: 16 bits
• Input Voltage Range: 0V to VREF
• Sampling Rate: Up to 1 MSPS
• Power Supply: 2.7V to 5.25V
• Operating Temperature Range: -40°C to +125°C
• Package Type: LFCSP
• Package Dimensions: 3mm x 3mm

Pin Configuration

The AD7989-5BCPZ-R2 has a total of 20 pins. Here is the detailed pin configuration:

1. VDD: Power supply voltage
2. VREF: Reference voltage input
3. AGND: Analog ground
4. VIN: Analog input voltage
5. VBIAS: Bias voltage for internal circuits
6. REFOUT: Buffered reference output
7. REFIN: External reference input
8. DGND: Digital ground
9. SCLK: Serial clock input
10. SDI: Serial data input
11. CS: Chip select input
12. SDO: Serial data output
13. RDY/BSY: Ready/busy indicator
14. CONVST: Conversion start input
15. TEMP: Temperature sensor output
16. AVDD: Analog power supply voltage
17. DVDD: Digital power supply voltage
18. DOUT/RDY: Data output or ready indicator
19. PDWN: Power-down control input
20. RESET: Reset control input

Functional Features

• High-resolution conversion: The AD7989-5BCPZ-R2 provides accurate 16-bit analog-to-digital conversion.
• Programmable gain amplifier: It includes a programmable gain amplifier that allows signal amplification before conversion, improving the overall signal-to-noise ratio.
• Internal reference and temperature sensor: The integrated reference and temperature sensor enhance system accuracy and stability.
• Flexible interface: The ADC supports a serial interface (SPI) for easy integration with microcontrollers and other digital devices.
• Low power consumption: The AD7989-5BCPZ-R2 operates at low power levels, making it suitable for power-constrained applications.

Advantages and Disadvantages

Advantages

• High resolution ensures accurate conversion of analog signals.
• Integrated features such as a temperature sensor and programmable gain amplifier enhance functionality.
• Wide input voltage range provides flexibility in signal acquisition.
• Low power consumption makes it suitable for battery-powered devices.
• Fast conversion rate enables quick signal processing.

Disadvantages

• Limited to a maximum sampling rate of 1 MSPS, which may not be sufficient for certain high-speed applications.
• The small package size may pose challenges during assembly and soldering processes.

Working Principles

The AD7989-5BCPZ-R2 operates based on the successive approximation register (SAR) architecture. It converts analog signals into digital data by comparing the input voltage with a reference voltage and iteratively adjusting the digital output until the conversion is complete. The internal programmable gain amplifier allows amplification of weak signals before conversion, improving the overall accuracy.

Detailed Application Field Plans

The AD7989-5BCPZ-R2 finds applications in various fields, including:

1. Industrial Automation: Used for precise measurement and control in industrial processes.
2. Medical Devices: Enables accurate data acquisition in medical equipment such as patient monitors and diagnostic devices.
3. Communication Systems: Converts analog signals in communication systems for transmission and processing.
4. Instrumentation: Provides high-resolution data acquisition in scientific instruments and test equipment.

Alternative Models