AD7194BCPZ

Product Overview

Category

AD7194BCPZ belongs to the category of analog-to-digital converters (ADCs).

Use

The AD7194BCPZ is used for converting analog signals into digital data. It is commonly employed in various applications that require precise and accurate conversion of analog signals, such as industrial automation, medical equipment, and scientific instruments.

Characteristics

• High resolution: The AD7194BCPZ offers a resolution of up to 24 bits, ensuring accurate conversion of analog signals.
• Low noise: It features low noise performance, enabling reliable signal acquisition even in noisy environments.
• High speed: With a maximum sampling rate of X samples per second, it can handle fast-changing analog signals effectively.
• Low power consumption: The AD7194BCPZ is designed to operate with low power consumption, making it suitable for battery-powered devices.
• Integrated features: It includes built-in programmable gain amplifiers (PGAs) and filters, providing flexibility in signal conditioning.

Package

The AD7194BCPZ comes in a small form factor package, known as LFCSP (lead frame chip scale package). This package ensures easy integration into compact designs and provides good thermal performance.

Essence

The essence of the AD7194BCPZ lies in its ability to accurately convert analog signals into digital data, enabling precise measurements and control in various applications.

Packaging/Quantity

The AD7194BCPZ is typically available in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Resolution: Up to 24 bits
• Input voltage range: ±VREF
• Sampling rate: X samples per second
• Power supply: +2.7 V to +5.25 V
• Operating temperature range: -40°C to +85°C
• Interface: SPI (Serial Peripheral Interface)

Detailed Pin Configuration

The AD7194BCPZ features a total of 32 pins, which are assigned specific functions. The pin configuration is as follows:

1. VREFP: Positive reference voltage input
2. VREFN: Negative reference voltage input
3. AIN1(+) / AIN1(-): Differential analog input
4. AIN2(+) / AIN2(-): Differential analog input
5. AIN3(+) / AIN3(-): Differential analog input
6. AIN4(+) / AIN4(-): Differential analog input
7. AIN5(+) / AIN5(-): Differential analog input
8. AIN6(+) / AIN6(-): Differential analog input
9. AIN7(+) / AIN7(-): Differential analog input
10. AIN8(+) / AIN8(-): Differential analog input
11. AVDD: Analog power supply
12. DVDD: Digital power supply
13. AGND: Analog ground
14. DGND: Digital ground
15. RESET: Reset input
16. CS: Chip select input
17. SCLK: Serial clock input
18. DIN: Data input
19. DOUT/RDY: Data output / Ready signal
20. GPIO1: General-purpose I/O pin 1
21. GPIO2: General-purpose I/O pin 2
22. GPIO3: General-purpose I/O pin 3
23. GPIO4: General-purpose I/O pin 4
24. GPIO5: General-purpose I/O pin 5
25. GPIO6: General-purpose I/O pin 6
26. GPIO7: General-purpose I/O pin 7
27. GPIO8: General-purpose I/O pin 8
28. EXCITATION: Excitation voltage input
29. REFOUT: Reference output
30. REFIN1(+)/REFIN1(-): Differential reference input
31. REFIN2(+)/REFIN2(-): Differential reference input
32. VIO: Digital I/O voltage supply

Functional Features

The AD7194BCPZ offers several functional features that enhance its performance and usability:

• Programmable gain amplifiers (PGAs): The built-in PGAs allow for signal amplification, enabling the ADC to handle a wide range of input voltages.
• On-chip filters: The integrated filters help in reducing noise and eliminating unwanted signals, ensuring accurate conversion.
• Internal temperature sensor: The ADC includes an internal temperature sensor, which can be used for temperature compensation or monitoring.
• Daisy-chain mode: Multiple AD7194BCPZ devices can be connected in a daisy-chain configuration, simplifying system design and reducing the number of interface lines required.

Advantages and Disadvantages

Advantages

• High resolution ensures precise measurement accuracy.
• Low noise performance enables reliable signal acquisition.
• Integrated features provide flexibility in signal