AD7707BRUZ

Product Overview

Category: Integrated Circuit (IC)

Use: Analog-to-Digital Converter (ADC)

Characteristics: - High-resolution ADC - Low power consumption - Serial interface - Programmable gain amplifier - On-chip reference voltage

Package: 24-pin TSSOP (Thin Shrink Small Outline Package)

Essence: The AD7707BRUZ is a high-performance, low-power, 16-bit sigma-delta ADC. It is designed for precision measurement applications that require high resolution and accuracy.

Packaging/Quantity: The AD7707BRUZ is available in tape and reel packaging, with 250 units per reel.

Specifications

• Resolution: 16 bits
• Input Voltage Range: ±Vref
• Conversion Rate: Up to 20 samples per second
• Power Supply: 2.7V to 5.25V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AD7707BRUZ has a total of 24 pins. Here is the detailed pin configuration:

1. VDD: Power supply positive terminal
2. VSS: Power supply ground terminal
3. AGND: Analog ground
4. REFOUT: Reference voltage output
5. REFIN1(+): Positive reference voltage input
6. REFIN1(-): Negative reference voltage input
7. REFIN2(+): Positive reference voltage input
8. REFIN2(-): Negative reference voltage input
9. AIN1(+): Positive analog input channel 1
10. AIN1(-): Negative analog input channel 1
11. AIN2(+): Positive analog input channel 2
12. AIN2(-): Negative analog input channel 2
13. AIN3(+): Positive analog input channel 3
14. AIN3(-): Negative analog input channel 3
15. AIN4(+): Positive analog input channel 4
16. AIN4(-): Negative analog input channel 4
17. AGND: Analog ground
18. DVDD: Digital power supply positive terminal
19. DGND: Digital ground
20. SCLK: Serial clock input
21. DIN: Serial data input
22. DOUT: Serial data output
23. CS: Chip select input
24. RESET: Reset input

Functional Features

• High-resolution ADC with 16-bit resolution
• Low power consumption, suitable for battery-powered applications
• Serial interface for easy integration with microcontrollers and other digital devices
• Programmable gain amplifier allows for signal amplification and attenuation
• On-chip reference voltage eliminates the need for external references

Advantages and Disadvantages

Advantages: - High resolution provides accurate measurement results - Low power consumption extends battery life in portable applications - Serial interface simplifies communication with other devices - Programmable gain amplifier enhances flexibility in signal conditioning

Disadvantages: - Limited conversion rate compared to some other ADCs - Requires external components for proper operation (e.g., reference voltage)

Working Principles

The AD7707BRUZ utilizes a sigma-delta modulation technique to convert analog signals into digital data. It oversamples the input signal and applies noise shaping to achieve high resolution and accuracy. The programmable gain amplifier allows for signal conditioning before the conversion process. The serial interface enables easy communication with external devices.

Detailed Application Field Plans

The AD7707BRUZ is commonly used in various precision measurement applications, including: - Industrial process control - Data acquisition systems - Medical instrumentation - Weighing scales - Temperature monitoring systems

Detailed and Complete Alternative Models

• AD7708: Similar to AD7707BRUZ but with additional features such as on-chip temperature sensor and voltage reference.
• ADS1115: 16-bit ADC with higher conversion rate and integrated multiplexer.
• MCP3424: 18-bit ADC with programmable gain amplifier and I2C interface.

These alternative models offer different specifications and features, providing options for various application requirements.

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