ICL7117CMH+D

Product Overview

Category: Integrated Circuit (IC)

Use: Analog-to-Digital Converter (ADC)

Characteristics: - High-resolution ADC - Low power consumption - Easy to use - Wide operating voltage range

Package: Ceramic Dual-In-Line Package (CDIP)

Essence: The ICL7117CMH+D is a high-resolution analog-to-digital converter designed for various applications that require accurate and reliable conversion of analog signals into digital data.

Packaging/Quantity: The ICL7117CMH+D is typically sold in a CDIP package, which contains one unit of the IC.

Specifications

The ICL7117CMH+D has the following specifications:

• Resolution: 3.5 digits
• Conversion Time: 100ms
• Reference Voltage Range: 0V to 2.56V
• Operating Voltage Range: ±4V to ±18V
• Input Voltage Range: -0.3V to VCC + 0.3V
• Power Consumption: 1.5mW (typical)
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ICL7117CMH+D features a 40-pin configuration with the following pin assignments:

1. AGND: Analog Ground
2. INP: Positive Analog Input
3. INM: Negative Analog Input
4. REF HI: Reference Voltage High
5. REF LO: Reference Voltage Low
6. VCC: Positive Power Supply
7. DGND: Digital Ground
8. D0-D3: Data Output Bits
9. D4-D7: Data Output Bits
10. D8-D11: Data Output Bits
11. D12-D15: Data Output Bits
12. D16-D19: Data Output Bits
13. D20-D23: Data Output Bits
14. D24-D27: Data Output Bits
15. D28-D31: Data Output Bits
16. D32-D35: Data Output Bits
17. D36-D39: Data Output Bits
18. CS: Chip Select
19. WR: Write Enable
20. RD: Read Enable
21. CLK: Clock Input
22. INT/EXT: Internal/External Clock Selection
23. VREF OUT: Reference Voltage Output
24. VREF ADJ: Reference Voltage Adjustment

Functional Features

The ICL7117CMH+D offers the following functional features:

• High-resolution conversion of analog signals into digital data
• Built-in reference voltage generator for accurate measurements
• Easy interfacing with microcontrollers and other digital systems
• Low power consumption for energy-efficient applications
• Wide operating voltage range allows for versatile use in various electronic systems

Advantages and Disadvantages

Advantages: - High resolution provides precise measurement capabilities - Low power consumption extends battery life in portable devices - Easy to integrate into existing electronic systems - Wide operating voltage range allows for flexibility in different applications

Disadvantages: - Limited input voltage range may restrict certain applications - Conversion time of 100ms may not be suitable for high-speed applications

Working Principles

The ICL7117CMH+D operates on the principle of successive approximation, where it compares the input analog voltage with a reference voltage and performs a series of binary comparisons to determine the digital representation of the input signal.

1. The analog input voltage is compared with the reference voltage using a comparator.
2. The result of the comparison is fed into a successive approximation register (SAR).
3. The SAR generates a binary code that represents the analog input voltage.
4. The digital output is then available for further processing or display.

Detailed Application Field Plans

The ICL7117CMH+D can be used in various applications that require accurate analog-to-digital conversion, such as:

1. Digital multimeters
2. Data acquisition systems
3. Industrial automation
4. Process control systems
5. Medical equipment
6. Instrumentation and measurement devices

Detailed and Complete Alternative Models

Some alternative models to the ICL7117CMH+D include:

1. ADC0804: 8-bit Analog-to-Digital Converter
2. MAX11645: 16-bit Low-Power ADC
3. LTC2400: 24-bit Delta-Sigma ADC
4. MCP3208: 12-bit SPI ADC
5. ADS1115: 16-bit I2C ADC

These alternative models offer different resolutions, features, and interfaces, providing options for specific application requirements.

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