ADS7864YB/2K

Product Overview

• Category: Analog-to-Digital Converter (ADC)
• Use: Converts analog signals into digital data
• Characteristics:
  • High resolution and accuracy
  • Low power consumption
  • Wide input voltage range
  • Fast conversion speed
• Package: Integrated Circuit (IC)
• Essence: Converts continuous analog signals to discrete digital values
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Resolution: 12 bits
• Input Voltage Range: ±10V
• Conversion Time: 1.5µs
• Power Supply: +5V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ADS7864YB/2K has a total of 20 pins. The pin configuration is as follows:

1. VREF-
2. VREF+
3. AGND
4. REFOUT
5. IN0
6. IN1
7. IN2
8. IN3
9. IN4
10. IN5
11. IN6
12. IN7
13. CS
14. SCLK
15. SDATA
16. EOC
17. DGND
18. DVDD
19. AVDD
20. VCC

Functional Features

• Simultaneous Sampling: All input channels are sampled simultaneously.
• Serial Interface: Uses a serial interface for communication with microcontrollers or other devices.
• Programmable Gain Amplifier: Allows for amplification of weak input signals.
• Internal Reference: Built-in reference voltage for accurate conversions.

Advantages

• High resolution and accuracy ensure precise measurements.
• Low power consumption makes it suitable for battery-powered applications.
• Wide input voltage range allows for versatile signal acquisition.
• Fast conversion speed enables real-time data processing.

Disadvantages

• Limited number of input channels (8 in total).
• Requires an external microcontroller or device for communication and control.

Working Principles

The ADS7864YB/2K operates by sampling the analog input signals simultaneously using an internal sample-and-hold circuit. The sampled voltages are then converted into digital data using a successive approximation register (SAR) ADC architecture. The converted digital values are transmitted through a serial interface to an external microcontroller or device for further processing.

Detailed Application Field Plans

The ADS7864YB/2K is commonly used in various applications, including:

1. Industrial Automation: Monitoring and control systems.
2. Data Acquisition: Measurement and recording of analog signals.
3. Instrumentation: Precision measurement equipment.
4. Medical Devices: Patient monitoring and diagnostics.
5. Automotive: Sensor data acquisition and control systems.

Alternative Models

1. ADS7864YB/1K: Similar specifications but with 10-bit resolution.
2. ADS7864YB/4K: Similar specifications but with 14-bit resolution.
3. ADS7864YB/8K: Similar specifications but with 16-bit resolution.

These alternative models provide different resolution options based on specific application requirements.

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