AD7938BSUZ-6REEL7

Product Overview

Category

AD7938BSUZ-6REEL7 belongs to the category of analog-to-digital converters (ADCs).

Use

This product is used for converting analog signals into digital data, making it suitable for various applications that require precise and accurate conversion.

Characteristics

• High resolution: The AD7938BSUZ-6REEL7 offers a resolution of 16 bits, ensuring accurate conversion of analog signals.
• Low power consumption: This ADC is designed to operate with low power consumption, making it suitable for battery-powered devices.
• Fast conversion rate: With a maximum conversion rate of 1 MSPS (Mega Samples Per Second), the AD7938BSUZ-6REEL7 can handle high-speed signal processing.
• Wide input voltage range: It supports a wide input voltage range, allowing it to accommodate various signal levels.
• Small package size: The AD7938BSUZ-6REEL7 comes in a compact package, enabling space-efficient designs.

Package and Quantity

The AD7938BSUZ-6REEL7 is available in a surface-mount package (SMD) with six reels. Each reel contains a quantity of 250 units, providing ample supply for production needs.

Specifications

• Resolution: 16 bits
• Input Voltage Range: 0V to VREF
• Conversion Rate: Up to 1 MSPS
• Power Supply: 2.7V to 5.25V
• Operating Temperature Range: -40°C to +85°C
• Interface: Serial Peripheral Interface (SPI)

Pin Configuration

The AD7938BSUZ-6REEL7 has a total of 20 pins. Here is the detailed pin configuration:

1. VDD: Power supply voltage
2. VREF: Reference voltage for ADC conversion
3. AGND: Analog ground
4. REFOUT: Buffered reference output
5. REFIN: Analog input voltage
6. VIN1 to VIN8: Analog input channels
7. DGND: Digital ground
8. CS: Chip select input
9. SCLK: Serial clock input
10. SDI: Serial data input
11. SDO: Serial data output
12. RDY/BSY: Ready/busy status output
13. CONVST: Conversion start input
14. RESET: Reset input
15. PD: Power-down mode control input
16. DOUT/RDY: Data output/ready status output
17. A0 to A2: Address inputs
18. CLK: Master clock input
19. DVDD: Digital power supply voltage
20. NC: No connect

Functional Features

• High-resolution conversion: The AD7938BSUZ-6REEL7 provides 16-bit resolution, ensuring accurate and precise analog-to-digital conversion.
• Low power consumption: It operates with low power consumption, making it suitable for power-sensitive applications.
• Flexible input configuration: The ADC offers eight analog input channels, allowing for versatile signal acquisition.
• Fast conversion rate: With a maximum conversion rate of 1 MSPS, the AD7938BSUZ-6REEL7 can handle high-speed data acquisition.

Advantages and Disadvantages

Advantages

• High resolution ensures accurate conversion.
• Low power consumption extends battery life in portable devices.
• Versatile input configuration allows for flexible signal acquisition.
• Fast conversion rate enables real-time data processing.

Disadvantages

• Limited number of analog input channels may restrict simultaneous signal acquisition.
• Higher cost compared to lower-resolution ADCs.

Working Principles

The AD7938BSUZ-6REEL7 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 determining the most significant bits (MSBs) and least significant bits (LSBs) of the digital output.

The conversion process starts with the application of a conversion start signal (CONVST). The ADC then samples the analog input voltage and performs a series of comparisons to determine the digital representation. The converted data is made available through the serial data output (SDO) pin.

Detailed Application Field Plans

The AD7938BSUZ-6REEL7 finds applications in various fields, including:

1. Industrial automation: Used for precise measurement and control of analog signals in industrial processes.
2. Medical devices: Enables accurate conversion of physiological signals for monitoring and diagnosis.
3. Test and measurement equipment: Provides high-resolution data acquisition capabilities for accurate measurements.
4. Audio processing: Converts analog audio signals into digital format for processing and storage.
5. Instrumentation and control systems: Facilitates precise measurement and control of physical quantities.

Detailed Alternative Models

For those seeking