LTC2248CUH#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Analog-to-Digital Converter (ADC)

Characteristics: - High-speed, high-resolution ADC - Low power consumption - Small form factor - Wide input voltage range - Differential input configuration - Serial interface for data transfer

Package: Ceramic QFN-32

Essence: The LTC2248CUH#PBF is a high-performance ADC designed for applications requiring fast and accurate analog-to-digital conversion.

Packaging/Quantity: The LTC2248CUH#PBF is available in tape and reel packaging with a quantity of 250 units per reel.

Specifications

• Resolution: 14 bits
• Sampling Rate: Up to 125 MSPS (Mega Samples Per Second)
• Input Voltage Range: ±2.5V
• Power Supply: 3.3V
• Operating Temperature Range: -40°C to +85°C
• SNR (Signal-to-Noise Ratio): 73 dB
• THD (Total Harmonic Distortion): -90 dB

Pin Configuration

The LTC2248CUH#PBF features a 32-pin ceramic 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. SDO
14. SDI
15. SCK
16. CS#
17. SHDN#
18. REFOUT
19. DGND
20. DGND
21. DGND
22. DGND
23. CLKIN
24. CLKOUT
25. DVDD
26. DVDD
27. DVDD
28. DVDD
29. VCM
30. VCM
31. VCM
32. VCM

Functional Features

• High-speed conversion with low latency
• Excellent linearity and accuracy
• Serial interface for easy integration with microcontrollers or digital signal processors
• Low power consumption for energy-efficient applications
• Differential input configuration for improved noise rejection
• Built-in reference voltage generator for simplified design

Advantages and Disadvantages

Advantages: - High resolution and sampling rate - Wide input voltage range - Small form factor for space-constrained applications - Low power consumption - Easy integration with microcontrollers or digital signal processors

Disadvantages: - Limited operating temperature range (-40°C to +85°C) - Requires external clock source for operation

Working Principles

The LTC2248CUH#PBF utilizes a successive approximation register (SAR) architecture to convert analog signals into digital data. The differential input configuration allows for better rejection of common-mode noise, resulting in improved accuracy. The ADC operates by comparing the input voltage to a reference voltage and generating a digital output code that represents the input signal.

Detailed Application Field Plans

The LTC2248CUH#PBF is suitable for various applications, including: 1. Communications systems 2. Test and measurement equipment 3. Medical imaging devices 4. Industrial automation 5. Radar and sonar systems 6. Audio processing equipment

Detailed and Complete Alternative Models

1. LTC2248IUH#PBF - Similar specifications but with an industrial temperature range (-40°C to +125°C).
2. LTC2248CUK#PBF - Same specifications as LTC2248CUH#PBF but with a different package (QFN-38).

These alternative models provide flexibility in choosing the most suitable option based on specific application requirements.

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