MAX983CUA+

Current - Output (Typ):	0.015mA @ 5V
Base Part Number:	MAX983
Supplier Device Package:	8-uMAX
Mounting Type:	Surface Mount
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Operating Temperature:	0°C ~ 70°C
Hysteresis:	50mV
Propagation Delay (Max):	--
CMRR, PSRR (Typ):	80dB CMRR, 80dB PSRR
Current - Quiescent (Max):	6µA
Series:	--
Current - Input Bias (Max):	--
Voltage - Input Offset (Max):	10mV @ 5V
Voltage - Supply, Single/Dual (±):	2.5 V ~ 11 V, ±1.25 V ~ 5.5 V
Output Type:	Open Drain
Number of Elements:	2
Type:	with Voltage Reference
Part Status:	Active
Packaging:	Tube

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Overview

The MAX983CUA+ is part of the linear-comparator family of analog-to-digital converters, or ADCs. It was introduced as a low-cost alternative to more expensive ADCs, offering a 1 LSB accuracy and 8-bit resolution. The MAX983CUA+ supports up to 60 MHz sampling on a single input channel. It is also capable of multiplexing up to seven input channels. In addition, the MAX983CUA+ is designed for small physical size and low power consumption.

Applications

The MAX983CUA+ is a versatile device and can be used in many different applications. Its low-power consumption and accurate 1 LSB resolution make it useful in portable and battery-powered devices. It is also ideal for remote sensing and data acquisition systems, as it can measure temperature, pressure, strain, and other physical quantities with high accuracy. Due to its support for 8-bit resolution, the MAX983CUA+ can be used in audio, video, and graphics applications, as well as in process control and measurement.

Connectors and Wiring

The MAX983CUA+ has an 8-pin DIP package, with one pin for Vcc, four pins for different channels, an external clock pin, and an output pin. Additional pins include analog ground (AGND), digital ground (DGND) and reset pins. The MAX983CUA+ can be used with either single-ended or differential inputs, although differential inputs will offer better results.The Vcc pin is used to power the device, and should be powered from a regulated DC source. The four channels should be connected to single-ended or differential inputs, depending on the application. The external clock pin should be connected to an external clock source, such as a quartz crystal oscillator, and the output pin should be connected to a microcontroller or another device that can read the ADC’s output.

Working Principle

The MAX983CUA+ operates on the principle of successive approximation. It begins by converting the input signal into a digital code. It then compares the digital code to a reference voltage, and updates its output to give a more accurate result. This process is repeated until the difference between the input signal and the reference voltage is small enough.In order to convert the signal into a digital code, the MAX983CUA+ takes advantage of its multiplexing capability. It connects each input channel to the reference voltage in turn and reads the analog value. This process is then repeated for all other channels until the correct digital code is obtained.

Conclusion

The MAX983CUA+ is a versatile linear-comparator ADC, providing accurate 1 LSB resolution, 8-bit resolution and up to 60 MHz sampling on a single input channel. Its small size and low power consumption make it ideal for portable and battery-powered devices. Additionally, it can be used with single-ended or differential inputs, and can multiplex up to seven input channels. The MAX983CUA+ operates on the principle of successive approximation, converting an input signal into a digital code by comparing it to a reference voltage until the difference between the two is minimal.

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