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MAX3250 - 50V Isolated / 3.0V to 5.5V / 250kbps / 2 Tx/2 Rx / RS-232 Transceiver

Datasheet Summary

Description

The MAX3250 is a 3.0V to 5.5V powered, ±50V isolated EIA/TIA-232 and V.28/V.24 communications interface with high data-rate capabilities.

The MAX3250 is a dual die part that operates with up to ±50V difference between the RS-232 side and the logic side (ISOCOM to GND).

Features

  • a FAULT open-drain output to signal an excessive isolated-side voltage condition on any of the RS232 inputs. This output can drive an alarm LED or can be monitored by the processor to prevent operation under these conditions. The receiver outputs are high impedance in shutdown, allowing multiple interfaces (IrDA, RS-232, RS-485) to be connected to the same UART. The MAX3250 is available in a space-saving 28-pin SSOP package. o ±50V Isolation o 20µA Supply Current in Shutdown o 250kbps Guaranteed.

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Datasheet Details

Part number MAX3250
Manufacturer Maxim
File Size 183.45 KB
Description 50V Isolated / 3.0V to 5.5V / 250kbps / 2 Tx/2 Rx / RS-232 Transceiver
Datasheet download datasheet MAX3250 Datasheet
Additional preview pages of the MAX3250 datasheet.

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Full PDF Text Transcription

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19-2443; Rev 1; 2/03 ±50V Isolated, 3.0V to 5.5V, 250kbps, 2 Tx/2 Rx, RS-232 Transceiver General Description The MAX3250 is a 3.0V to 5.5V powered, ±50V isolated EIA/TIA-232 and V.28/V.24 communications interface with high data-rate capabilities. The MAX3250 is a dual die part that operates with up to ±50V difference between the RS-232 side and the logic side (ISOCOM to GND). This makes the device ideal for operation in noisy conditions with high common-mode voltages. This feature prevents damage to the device if RS-232 lines are inadvertently short-circuited to a +24V or ±48V power bus. The MAX3250 is powered by a single 3V to 5.5V supply on the logic side. Power is transferred from the logic side to the isolated side by ±100V external capacitors.
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