Rs232chargepump

A common application for charge-pump circuits is in RS-232 level shifters, where they are used to derive positive and negative voltages (often +10 V and ...

This Application note provides instructions for selecting the proper Charge Pump capacitor values. (C1 - C4) for a given input voltage.

The MAX232 (and other single supply devices) includes two charge pumps. The first charge pump doubles +5V to approximately +10V and the second charge pump ...

This article demonstrates a method for choosing charge pump capacitor values for V.28 and V.11 transceivers. Background. RS-232 transceivers with on-chip charge ...

The RS-232 standard specifies that a logic 0 is represented by voltages between 5 V and 25 V, and a logic 1 by voltages between –5 V and –25 V. My problem was ...

The first charge pump works as a doubler and creates +10V from the 5V supply, minus some losses. The second charge-pump converter is configured as an inverter ...

2010年6月18日 — With a new low-dropout output stage, Maxim introduced RS-232 transceivers with internal charge pumps that provided regulated ±5.5V outputs. This ...

The charge pump requires five small 0.1-μF capacitors for operation from as low as a 1.8-V supply. The TRS3122E is capable of running at data rates up to 1000 ...

The UM232EExE series are low power single supply RS232 interface. The device consists of two line drivers, two line receivers, and dual charge pump circuit.