AD7846JN

Product Overview

Category

AD7846JN belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a 12-bit successive approximation analog-to-digital converter (ADC) in various electronic applications.

Characteristics

• Resolution: 12 bits
• Conversion Rate: Up to 200k samples per second
• Interface: Serial, SPI-compatible
• Power Supply: +5V
• Temperature Range: -40°C to +85°C

Package

AD7846JN is available in a 28-lead plastic dual in-line package (PDIP).

Essence

The essence of AD7846JN lies in its ability to convert analog signals into digital data with high precision and speed.

Packaging/Quantity

AD7846JN is typically packaged in tubes or trays, with quantities varying based on customer requirements.

Specifications

• Resolution: 12 bits
• Input Voltage Range: 0V to VREF
• Reference Voltage Range: 2.5V to VDD
• Total Unadjusted Error: ±1 LSB
• Differential Nonlinearity: ±1 LSB
• Integral Nonlinearity: ±1 LSB
• Power Supply Voltage: +5V ±10%
• Power Consumption: 15mW (typical)

Detailed Pin Configuration

AD7846JN has a total of 28 pins. The pin configuration is as follows:

1. REF IN
2. VDD
3. AGND
4. DGND
5. VREF OUT
6. VREF IN
7. VREF CAP
8. VREF BUF
9. VREF BUF CAP
10. VREF BUF CAP
11. VREF BUF CAP
12. VREF BUF CAP
13. VREF BUF CAP
14. VREF BUF CAP
15. VREF BUF CAP
16. VREF BUF CAP
17. VREF BUF CAP
18. VREF BUF CAP
19. VREF BUF CAP
20. VREF BUF CAP
21. VREF BUF CAP
22. VREF BUF CAP
23. VREF BUF CAP
24. VREF BUF CAP
25. VREF BUF CAP
26. VREF BUF CAP
27. VREF BUF CAP
28. VREF BUF CAP

Functional Features

• 12-bit resolution provides high accuracy in converting analog signals.
• Serial interface allows easy integration with microcontrollers and other digital devices.
• SPI compatibility enables efficient communication with a wide range of systems.
• Fast conversion rate of up to 200k samples per second ensures real-time data acquisition.

Advantages and Disadvantages

Advantages

• High-resolution conversion for precise measurements.
• Versatile serial interface for seamless integration.
• Wide temperature range allows operation in various environments.
• Low power consumption for energy-efficient applications.

Disadvantages

• Limited input voltage range may restrict certain applications.
• Requires an external reference voltage source for accurate conversions.

Working Principles

AD7846JN utilizes the successive approximation method to convert analog signals into digital data. It samples the input voltage, compares it with the internal reference voltage, and iteratively adjusts the digital output until the desired accuracy is achieved.

Detailed Application Field Plans

AD7846JN finds application in various fields, including but not limited to: - Industrial automation - Data acquisition systems - Medical equipment - Instrumentation and control systems - Communication devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AD7846JN are: - AD7866: 12-bit ADC with additional features like on-chip temperature sensor and programmable alarm thresholds. - MCP3208: 12-bit ADC with SPI interface and 8 input channels. - MAX1241: 12-bit ADC with low power consumption and internal reference voltage.

These alternative models can be considered based on specific application requirements and system constraints.

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