LTC1821-1BIGW#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: The LTC1821-1BIGW#PBF is a high-performance analog-to-digital converter (ADC) designed for various applications that require precise and fast conversion of analog signals into digital data. It is commonly used in industrial automation, telecommunications, medical equipment, and other fields.

Characteristics: - High-resolution: The LTC1821-1BIGW#PBF offers a resolution of up to 16 bits, ensuring accurate conversion of analog signals. - Fast Conversion Speed: With a maximum sampling rate of 1 Mega-Samples per second (MSPS), it can quickly convert analog signals into digital data. - Low Power Consumption: This ADC operates at low power, making it suitable for battery-powered devices. - Wide Input Voltage Range: The LTC1821-1BIGW#PBF supports a wide input voltage range, allowing it to handle various signal levels. - Small Package Size: It comes in a compact package, enabling easy integration into space-constrained designs.

Package: The LTC1821-1BIGW#PBF is available in a small form factor package, such as a 24-pin SSOP (Shrink Small Outline Package).

Essence: The essence of the LTC1821-1BIGW#PBF lies in its ability to accurately and efficiently convert analog signals into digital data, providing a crucial interface between the analog and digital domains.

Packaging/Quantity: The LTC1821-1BIGW#PBF is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Resolution: Up to 16 bits
• Sampling Rate: Up to 1 MSPS
• Input Voltage Range: ±10V
• Power Supply: +5V
• Power Consumption: 10mW (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LTC1821-1BIGW#PBF features a 24-pin SSOP package with the following pin configuration:

1. VREF-
2. VREF+
3. AGND
4. VIN-
5. VIN+
6. REFOUT
7. SDO
8. SDI
9. SCK
10. CS
11. DGND
12. CLKOUT
13. D15
14. D14
15. D13
16. D12
17. D11
18. D10
19. D9
20. D8
21. D7
22. D6
23. D5
24. D4

Functional Features

• High-resolution ADC for accurate analog-to-digital conversion.
• Fast conversion speed enables real-time data acquisition.
• Low power consumption for energy-efficient operation.
• Wide input voltage range allows flexibility in signal handling.
• Small package size facilitates integration into space-constrained designs.

Advantages and Disadvantages

Advantages: - High resolution ensures precise conversion of analog signals. - Fast conversion speed enables real-time data processing. - Low power consumption extends battery life in portable devices. - Wide input voltage range accommodates various signal levels. - Compact package size allows for easy integration.

Disadvantages: - Limited maximum sampling rate compared to some other high-speed ADCs. - Requires an external power supply (+5V) for operation.

Working Principles

The LTC1821-1BIGW#PBF utilizes a successive approximation register (SAR) architecture to convert analog signals into digital data. It employs a sample-and-hold circuit to capture the input voltage, followed by a comparator that compares the sampled voltage with a reference voltage. The SAR then iteratively approximates the digital representation of the analog signal by successively adjusting the bits until the conversion is complete.

Detailed Application Field Plans

The LTC1821-1BIGW#PBF finds applications in various fields, including:

1. Industrial Automation: Used for precise measurement and control of analog signals in industrial processes.
2. Telecommunications: Enables accurate digitization of analog voice signals for transmission and processing.
3. Medical Equipment: Utilized in medical devices for capturing and analyzing physiological signals.
4. Test and Measurement: Provides high-resolution data acquisition capabilities for accurate measurements.
5. Audio Processing: Converts analog audio signals into digital format for audio recording and processing.

Detailed and Complete Alternative Models

1. LTC1867-1BIGW#PBF: Similar to LTC1821-1BIGW#PBF but offers higher resolution (18 bits).
2. LTC1859-1BIGW#PBF: Lower-resolution alternative (12 bits) with similar performance characteristics.
3. LTC1864-1BIGW#PBF: Higher-speed alternative with a maximum sampling rate of