ADS7861E

Product Overview

Category

The ADS7861E belongs to the category of analog-to-digital converters (ADCs).

Use

The ADS7861E is used to convert analog signals into digital data for processing and analysis in various applications.

Characteristics

• High-resolution: The ADS7861E offers a resolution of up to 16 bits, allowing for accurate conversion of analog signals.
• Low power consumption: It operates at low power levels, making it suitable for battery-powered devices.
• Fast conversion rate: The ADC can perform conversions at high speeds, enabling real-time data acquisition.
• Wide input voltage range: It supports a wide range of input voltages, accommodating different signal levels.
• Integrated features: The ADS7861E incorporates built-in reference voltage, sample-and-hold circuitry, and serial interface options.

Package

The ADS7861E is available in a small form factor package, such as a QFN or TSSOP package.

Essence

The essence of the ADS7861E lies in its ability to accurately convert analog signals into digital data, facilitating further processing and analysis.

Packaging/Quantity

The ADS7861E is typically sold in reels or trays, with a quantity of around 250 to 1000 units per package.

Specifications

• Resolution: Up to 16 bits
• Input Voltage Range: ±Vref
• Conversion Rate: Up to X samples per second
• Power Supply: +5V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ADS7861E has a total of 20 pins. Here is the detailed pin configuration:

1. VDD: Power supply positive terminal
2. VREF: Reference voltage input
3. AGND: Analog ground
4. VIN: Analog input voltage
5. SCLK: Serial clock input
6. DIN: Serial data input
7. DOUT: Serial data output
8. CS: Chip select input
9. DGND: Digital ground
10. PD: Power-down mode control

Functional Features

• High-resolution conversion
• Low power consumption
• Fast conversion rate
• Integrated reference voltage and sample-and-hold circuitry
• Serial interface options for easy integration with microcontrollers

Advantages and Disadvantages

Advantages

• High accuracy and resolution
• Low power consumption
• Compact package size
• Wide input voltage range
• Integrated features for simplified design

Disadvantages

• Limited operating temperature range
• Requires external reference voltage source

Working Principles

The ADS7861E operates based on the successive approximation register (SAR) architecture. It samples the analog input voltage, compares it to a reference voltage, and performs a binary search to determine the digital representation of the input signal.

Detailed Application Field Plans

The ADS7861E finds applications in various fields, including: 1. Industrial automation 2. Medical devices 3. Test and measurement equipment 4. Data acquisition systems 5. Communication systems

Detailed and Complete Alternative Models

1. ADS7862E: Similar to ADS7861E but with additional features.
2. ADS8861E: Higher-resolution version of ADS7861E.
3. ADS7221E: Lower-resolution version of ADS7861E with lower cost.

These alternative models offer different specifications and features to cater to specific application requirements.

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