ICL7109EQH+D

Number of A/D Converters:	1
Base Part Number:	ICL7109
Supplier Device Package:	44-PLCC (16.59x16.59)
Package / Case:	44-LCC (J-Lead)
Operating Temperature:	0°C ~ 70°C
Features:	--
Voltage - Supply, Digital:	±5V
Voltage - Supply, Analog:	±5V
Reference Type:	External
Architecture:	Dual Slope
Series:	--
Ratio - S/H:ADC:	--
Configuration:	ADC
Data Interface:	Parallel
Input Type:	Differential
Number of Inputs:	1
Sampling Rate (Per Second):	30
Number of Bits:	12
Part Status:	Active
Packaging:	Tube

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The ICL7109EQH+D is an integrating data acquisition module with a built-in A/D converter. It is a general purpose module for converting analog input signals into digital output signals. It has an effective integration of input channels, digital-to-analog converter (DAC) and A/D converters. Application Field The ICL7109EQH+D is used in a wide range of applications in data acquisition and industrial control systems. It is especially suitable for medical devices and instrumentation, security systems, test and measurement systems, and robotics applications. It can be used for monitoring temperature, pressure, vibration, current, voltage, and any other process variable. It can handle high speed input data up to 40 MHz, resolving up to 16-bit accuracy. It is capable of converting a wide dynamic range of signals, from tiny signals up to +/–20V, or even to large signals up to +/–24V.Working Principle The ICL7109EQH+D module comprises a differential amplifier, multiplexer, reference, analog-to-digital converter, and output register. The differential amplifier input stage is designed to handle high speed or heavy load inputs, indicating a high frequency bandwidth of up to 1MHz. The multiplexer is used to select one of the 16 inputs from the differential stage. The analog-to-digital converter, reference, and output register further conditions and converts the multiplexed input into a digital output. The analog-to-digital converter of the ICL7109EQH+D module is a successive approximation register (SAR) type converter, comprised of resistors, capacitors, comparators, and logic. It is designed to be a low power, low noise, and fast responding circuit, making it an ideal choice for data acquisition systems.The module operates in a 3-byte or 4-byte format and supports both parallel and serial (SPI o UART) modes of data transmission. The ICL7109EQH+D also has an adjustable output polarity, which can be set to active-low or active-high. The ICL7109EQH+D is widely used in the industrial, medical and commercial fields. It is a highly flexible, efficient, and reliable solution for data acquisition applications.

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