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ICM7207
ICM7207 is a precision dual-slope ADC chip used for digital voltage and frequency measurements.
ICM7207
ICM7207 is a precision dual-slope ADC chip used for digital voltage and frequency measurements.
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ICM7207 數據表
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詳細說明
The ICM7207 is a low cost, high performance, single chip microprocessor controlled 4 1/2 digit A/D converter. It provides serial output data and interface to industry standard 8051 and 8022 microprocessors. The ICM7207 features a 8 channel multiplexer, 4 1/2 digit resolution, ±1 count of nonlinearity, and a maximum conversion time of 90ms. It has a 12-bit ad converter with a maximum conversion time of 90ms. It operates with a single power supply between 4.5V to 5.5V and consumes a typical current of 1.5mA.The ICM7207 includes a 12-bit A/D converter, 8-channel multiplexer and a 4 1/2 digit LED display driver. It also includes an internal oscillator with 50ms period clock, and an on-chip reference that can be disabled for external reference. The ICM7207 is available in a 28-pin PDIP package and is specified for operation over the -40˚C to +85˚C temperature range. It is commonly used in digital multimeters, data loggers, and other industrial applications that require high accuracy and resolution A/D conversion.
主要特徵
- Real Time Clock/Calendar with BCD code time and date inputs
- 12-Hour/24-Hour operation
- Programmable alarm interrupts
- Automatic leap-year compensation
- Serial output for microprocessor interface
- Low power consumption
應用
- Industrial automation
- Process control systems
- Motion control applications
- Energy management systems
- Robotics
- Automotive applications
- Medical equipment
- Telecommunications systems
- Security systems
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| Part Life Cycle Code | Obsolete | Reach Compliance Code | |
| HTS Code ! | 8542.39.00.01 |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is ICM7207?
The ICM7207 is a precision, dual-slope analog-to-digital converter (ADC) designed by Intersil. It is commonly used in digital multimeters, data loggers, and industrial automation systems where accurate conversion of analog signals to digital data is required.
How Does ICM7207 Work?
The ICM7207 operates on the principle of dual-slope integration. It integrates the input voltage during two different time intervals: one with a fixed reference voltage and one with the input voltage. By comparing the integrated values, the converter determines the digital representation of the input signal. This method provides high accuracy and stability in conversion.
How Many Pins does ICM7207 have and What are the Functions of the Pinout Configuration?
The ICM7207 is housed in a 24-pin DIP (Dual Inline Package) package. The pinout configuration includes:
- V+: Positive power supply pin.
- V-: Negative power supply pin.
- Vref: Reference voltage input pin.
- Vin: Analog input voltage pin.
- CS: Chip select input pin.
- CLK: Clock input pin.
- D0-D7: Parallel output data pins.
- EOC: End of conversion output pin.
- OVF: Overflow output pin.
What are the Pros and Cons of ICM7207?
Pros:
- Precision: Provides accurate and stable conversion of analog signals to digital data.
- Dual-Slope Integration: Utilizes the dual-slope integration method for high-resolution conversion.
- Versatile Applications: Suitable for a wide range of applications requiring precision measurement.
- Parallel Output: Offers parallel output data for fast interfacing with external systems.
Cons:
- Complexity: Dual-slope ADCs like the ICM7207 may require careful calibration and timing considerations for optimal performance.
- Power Consumption: May consume more power compared to other types of ADCs.
- Package Size: The 24-pin DIP package may not be suitable for space-constrained designs.
Are There Any Equivalents/Alternatives to ICM7207 for Recommendation?
- The ICL7106 from Intersil is a similar dual-slope ADC commonly used in digital panel meters.
- Alternatives to the ICM7207 include the AD1674 from Analog Devices and the MAX11606 from Maxim Integrated.
