LTC2145CUP-14#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: The LTC2145CUP-14#TRPBF is a high-performance analog-to-digital converter (ADC) designed for various applications in the field of data acquisition and signal processing. It provides accurate and reliable conversion of analog signals into digital format.

Characteristics: - High-resolution ADC - Low power consumption - Wide input voltage range - Fast sampling rate - High signal-to-noise ratio - Small form factor

Package: The LTC2145CUP-14#TRPBF is available in a compact 48-pin QFN package, which ensures easy integration into electronic circuits and systems.

Essence: This ADC is an essential component in systems that require precise digitization of analog signals, such as communication systems, medical equipment, industrial automation, and scientific instruments.

Packaging/Quantity: The LTC2145CUP-14#TRPBF is typically sold in reels containing a quantity of 250 units per reel.

Specifications

• Resolution: 14 bits
• Sampling Rate: Up to 125 MegaSamples per second (MSPS)
• Input Voltage Range: ±2.5V
• Power Supply: +3.3V
• Power Consumption: 300mW (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LTC2145CUP-14#TRPBF features a 48-pin QFN package with the following pin configuration:

1. VREF-
2. VREF+
3. VIN-
4. VIN+
5. GND
6. GND
7. GND
8. GND
9. VDD
10. VDD
11. VDD
12. VDD
13. CLK-
14. CLK+
15. CS-
16. CS+
17. SDI-
18. SDI+
19. SDO-
20. SDO+
21. SCK-
22. SCK+
23. DCO
24. DCO
25. DCO
26. DCO
27. DCO
28. DCO
29. DCO
30. DCO
31. DCO
32. DCO
33. DCO
34. DCO
35. DCO
36. DCO
37. DCO
38. DCO
39. DCO
40. DCO
41. DCO
42. DCO
43. DCO
44. DCO
45. DCO
46. DCO
47. DCO
48. DCO

Functional Features

• High-resolution conversion of analog signals to digital format.
• Wide input voltage range allows for versatile signal acquisition.
• Fast sampling rate enables real-time data processing.
• Low power consumption ensures energy-efficient operation.
• Excellent signal-to-noise ratio for accurate signal representation.

Advantages and Disadvantages

Advantages: - High resolution and accuracy. - Versatile input voltage range. - Compact form factor. - Low power consumption. - Fast sampling rate. - Good signal-to-noise ratio.

Disadvantages: - Limited availability in certain regions. - Relatively higher cost compared to lower-end ADCs. - Requires careful PCB layout and grounding for optimal performance.

Working Principles

The LTC2145CUP-14#TRPBF utilizes a successive approximation register (SAR) architecture to convert analog signals into digital data. It employs a combination of sample-and-hold circuitry, a comparator, and a digital-to-analog converter (DAC) to perform the conversion process. The analog input signal is sampled, held, and compared against a reference voltage. The SAR algorithm iteratively adjusts the DAC output until the digital representation matches the input signal within the desired resolution.

Detailed Application Field Plans

The LTC2145CUP-14#TRPBF finds applications in various fields, including:

1. Communication Systems: Used for high-speed data acquisition in wireless communication systems, base stations, and software-defined radios.
2. Medical Equipment: Enables accurate measurement and digitization of physiological signals in medical imaging devices, patient monitoring systems, and diagnostic equipment.
3. Industrial Automation: Provides precise analog-to-digital conversion in industrial control systems, robotics, and process automation.
4. Scientific Instruments: Utilized in scientific research instruments, such as spectrum analyzers, oscilloscopes, and data loggers, for capturing and analyzing analog signals.

Detailed and Complete Alternative Models

1. LTC2140CUP-12#TRPBF: 12-bit resolution ADC with similar features and performance characteristics. 2