EEWORLDEEWORLDEEWORLD

Part Number

Search

LT1537

Description
Advanced Low Power 5V RS232 Transceiver with Small Capacitors
File Size208KB,8 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Compare View All

LT1537 Overview

Advanced Low Power 5V RS232 Transceiver with Small Capacitors

LT1537
Advanced Low Power
5V RS232 Transceiver with
Small Capacitors
FEATURES
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
s
s
s
s
Low Cost
Uses Small Capacitors: 0.1µF, 0.2µF
1
µ
A Supply Current in Shutdown
120kBaud Operation for R
L
= 3k, C
L
= 2500pF
250kBaud Operation for R
L
= 3k, C
L
= 1000pF
CMOS Comparable Low Power: 40mW
Operates from a Single 5V Supply
Easy PC Layout: Flow-through Architecture
Rugged Bipolar Design
Outputs Assume a High Impedance State When Off
or Powered Down
Improved Protection: RS232 I/O Lines Can Be Forced
to
±25V
Without Damage
Output Overvoltage Does Not Force Current Back
into Supplies
Absolutely No Latch-Up
Available in SO Package
The LT
®
1537 is a three-driver, five-receiver RS232 trans-
ceiver, pin compatible with the LT1137A, offering perfor-
mance improvements and two shutdown modes. The
LT1537’s charge pump is designed for extended compli-
ance and can deliver over 35mA of load current. Supply
current is typically 8mA, competitive with similar CMOS
devices. An advanced driver output stage operates up to
250kbaud while driving heavy capacitive loads.
The LT1537 is fully compliant with all RS232 specifica-
tions. Special bipolar construction techniques protect the
drivers and receivers beyond the fault conditions stipu-
lated for RS232. Driver outputs and receiver inputs can be
shorted to
±25V
without damaging the device or the
power supply generator. In addition, the RS232 I/O pins
are resilient to multiple
±5kV
ESD strikes.
The transceiver has two shutdown modes. One mode
disables the drivers and the charge pump, the other shuts
down all circuitry. While shut down, the drivers and
receivers assume high impedance output states.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATI
s
s
S
Notebook Computers
Palmtop Computers
TYPICAL APPLICATI
+
0.1µF
2
×
0.1µF
V
+
5V V
CC
1
2
3
4
DRIVER OUT
RX IN
DRIVER OUT
TO
LINE
RX IN
RX IN
RX IN
DRIVER OUT
RX IN
ON/OFF = 5V
5
6
7
8
9
10
11
12
13
14
LT1537
28
27
25
24
23
22
21
20
19
18
17
16
15
26
V
0.1µF
RECEIVER
OUTPUT
C
L
= 50pF
R
DRIVER
OUTPUT
R
L
= 3k
C
L
= 2500pF
DRIVER IN
RX OUT
DRIVER IN
RX OUT
RX OUT
RX OUT
DRIVER IN
RX OUT
GND
DRIVER
DISABLE
LT1537 • TA01
+
+
2
×
0.1µF
TO LOGIC
INPUT
U
Output Waveforms
LT1537 • TA02
+
UO
UO
1

LT1537 Related Products

LT1537 LT1537CSW LT1537CG LT1537C
Description Advanced Low Power 5V RS232 Transceiver with Small Capacitors Advanced Low Power 5V RS232 Transceiver with Small Capacitors Advanced Low Power 5V RS232 Transceiver with Small Capacitors Advanced Low Power 5V RS232 Transceiver with Small Capacitors
MSP430f5310 ADC multi-channel acquisition problem
Hello, I encountered a problem when using ADC multi-channel acquisition. First, I used ADC 4 channels 10-bit acquisition (A3, A2, A1, A0), adopted the internal reference voltage 2.5v, and used DMA to ...
hgd Microcontroller MCU
Share the method of marking the resistance value of SMT resistors
[i=s] This post was last edited by dontium on 2015-1-23 13:25 [/i] Resistor value marking method   1. Direct marking method: Use numbers and unit symbols to mark the resistance value on the surface of...
smtsmt1a Analogue and Mixed Signal
Car Charger DIY Schematic PCB
[i=s]This post was last edited by Wutong after the rain on 2016-8-25 15:42[/i] In response to the post I posted yesterday: [url=https://bbs.eeworld.com.cn/thread-498465-1-1.html]https://bbs.eeworld.co...
雨后的梧桐 Mobile and portable
How to pop up another window interface???
Hey guys, I want to press a button on one interface and another interface will pop up. What function should I use to call and generate the other interface?...
wang2002219 Embedded System
The amplifier board is soldered but cannot be used normally
I recently soldered a sound amplifier circuit board, and found that it could not work properly after soldering. I don't know what the reason is: I input the audio signal, but the speaker does not soun...
零下12度半 Analog electronics
When you have the necessary foundation, what do you focus on when mastering a new MCU?
[i=s] This post was last edited by dontium on 2014-1-12 15:31 [/i] The purpose of this topic is to understand where everyone starts when mastering a new microcontroller. The choice between the two dep...
dontium MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 397  1669  1044  626  1778  8  34  22  13  36 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号