MAX202CWE+T

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Transceiver
Protocol:	RS232
Number of Drivers/Receivers:	2/2
Duplex:	Full
Receiver Hysteresis:	500mV
Data Rate:	120Kbps
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	MAX202

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The MAX202CWE+T is an integrated powered RS-232 line receiver and transceiver, designed to interface microprocessors, micro controllers, and other digital systems equipment to data set, modems, and other serial communication systems. It is a member of Maxim Integrated’s broad portfolio of interface ICs and has been engineered for both commercial and industrial applications. This article provides an overview of the device and its capabilities, as well as its application field and working principle.

Overview of Features & Benefits

The MAX202CWE+T includes integrated charge pump circuits, required for operation from a single 5-volt power supply with ±7-volt signal inputs and outputs. The device has the capability to sense input signal levels from +/- 5V up to +/- 15V, thanks to the internal ±15-volt voltage regulator. Similarly, the output capability ranges from +/- 5V to +/- 15V.The MAX202CWE+T features a low power shutdown mode, which reduces supply current to less than 1µA. It also has ±15V load-current outputs of up to 180mA, a signal-input current of up to 0.1mV and a signal-output voltage of up to ±15V. The device has an operating temperature range of -40ºC to +85ºC and is available in a 16-pin wide-body SOIC package.

Application Field and Working Principle

The MAX202CWE+T is ideal for many applications including digital instrumentation, communications systems, micro controllers, modems, and industrial automation. The device is suitable for micro processor systems and digital systems, as it provides EIA/TIA compliant RS-232 line receivers and transceivers.The MAX202CWE+T works by taking in an input signal of +5V or greater, which is then converted to a logic one at the input of the device. A logic zero is the inverse of this, where the input signal is below -5V. The +5V and -5V signals are then converted to the desired output voltage, usually +15V or -15V.The device can also be used to receive input signals in the form of voltage level shifters. This allows a micro controller to receive a signal of any voltage and convert it to a logic one or a logic zero. The MAX202CWE+T is designed to provide a low power shutdown mode to conserve power when it is not in use.In summary, the MAX202CWE+T is a low power RS-232 line receiver and transceiver that is ideal for many different applications. It has integrated charge pump circuits to operate from a single 5-volt power supply, and is capable of sensing input signal levels from +/- 5V to +/- 15V. The device has a low power shutdown mode and has an operating temperature range of -40ºC to +85ºC.

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