AD7890BRZ-4

Product Overview

Category

AD7890BRZ-4 belongs to the category of analog-to-digital converters (ADCs).

Use

The AD7890BRZ-4 is primarily used for converting analog signals into digital data. It finds applications in various industries such as telecommunications, industrial automation, medical equipment, and consumer electronics.

Characteristics

• High-resolution: The AD7890BRZ-4 offers a resolution of 12 bits, ensuring accurate conversion of analog signals.
• Fast conversion rate: With a maximum conversion rate of 1 MSPS (Mega Samples Per Second), it can quickly process analog inputs.
• Low power consumption: The device operates at low power, making it suitable for battery-powered applications.
• Wide input voltage range: It supports a wide input voltage range, allowing it to handle various signal levels.
• Small package size: The AD7890BRZ-4 comes in a compact package, enabling space-efficient designs.

Package and Quantity

The AD7890BRZ-4 is available in a small outline integrated circuit (SOIC) package. It is typically sold in reels containing a quantity of 250 units.

Specifications

• Resolution: 12 bits
• Conversion Rate: Up to 1 MSPS
• Input Voltage Range: ±10V
• Power Supply: +5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOIC
• Pin Count: 16

Detailed Pin Configuration

The AD7890BRZ-4 features a 16-pin configuration with the following pin assignments:

1. VREF: Reference voltage input
2. AGND: Analog ground
3. VIN: Analog input
4. VIN: Analog input
5. VIN: Analog input
6. VIN: Analog input
7. DGND: Digital ground
8. DOUT: Digital output
9. SCLK: Serial clock input
10. CS: Chip select input
11. SDATA: Serial data input/output
12. SDATA: Serial data input/output
13. SDATA: Serial data input/output
14. SDATA: Serial data input/output
15. SDATA: Serial data input/output
16. VDD: Power supply

Functional Features

• High accuracy: The AD7890BRZ-4 provides precise conversion of analog signals, ensuring reliable data acquisition.
• Serial interface: It incorporates a serial interface for easy integration with microcontrollers and other digital systems.
• Low noise: The device minimizes noise interference during the conversion process, enhancing signal integrity.
• Flexible power supply: It operates on a single +5V power supply, simplifying system design.

Advantages and Disadvantages

Advantages

• High-resolution conversion
• Fast conversion rate
• Low power consumption
• Wide input voltage range
• Compact package size

Disadvantages

• Limited pin count for multiple inputs/outputs
• Requires external reference voltage source

Working Principles

The AD7890BRZ-4 utilizes successive approximation register (SAR) architecture to convert analog signals into digital data. It samples the input voltage, compares it against an internal reference voltage, and iteratively determines the digital representation of the analog signal.

Detailed Application Field Plans

The AD7890BRZ-4 finds applications in various fields, including: 1. Telecommunications: Used for signal processing in communication systems. 2. Industrial Automation: Enables precise measurement and control in industrial processes. 3. Medical Equipment: Provides accurate data acquisition in medical devices such as patient monitors. 4. Consumer Electronics: Used in audio equipment, instrumentation, and other consumer electronics for analog-to-digital conversion.

Detailed and Complete Alternative Models

1. AD7890BRZ-3: Similar to AD7890BRZ-4 but with a resolution of 10 bits.
2. AD7890BRZ-5: Similar to AD7890BRZ-4 but with a resolution of 14 bits.
3. AD7890BRZ-6: Similar to AD7890BRZ-4 but with a resolution of 16 bits.

These alternative models offer different resolutions to suit specific application requirements.

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