EEWORLDEEWORLDEEWORLD

Part Number

Search

LTC1843CS8

Description
Comparator Dual ±5.5V/11V 8-Pin SOIC N
CategoryThe comparator   
File Size206KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Download user manual Parametric View All

LTC1843CS8 Overview

Comparator Dual ±5.5V/11V 8-Pin SOIC N

LTC1843CS8 Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesNot Compliant
ECCN (US)EAR99
Part StatusUnconfirmed
SVHCYes
SVHC Exceeds ThresholdYes
Manufacturer TypeUltra Low Power Comparator
Number of Channels per Chip2
Rail to RailNo
Typical CMRR (dB)80
Typical PSRR (dB)80
Maximum Propagation Delay Time (ns)12000(Typ)
Output TypeOpen Drain
Maximum Operating Supply Voltage (V)±5.5|11
Maximum Input Offset Voltage (mV)10@5V@0C to 70C
Minimum Single Supply Voltage (V)2.5
Typical Single Supply Voltage (V)3|5|9
Maximum Single Supply Voltage (V)11
Minimum Dual Supply Voltage (V)±1.25
Typical Dual Supply Voltage (V)±3|±5
Maximum Dual Supply Voltage (V)±5.5
Maximum Quiescent Current (mA)5.7@5V@0C to 70C
Maximum Power Dissipation (mW)500
Power Supply TypeSingle|Dual
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
Standard Package NameSOP
Pin Count8
Supplier PackageSOIC N
MountingSurface Mount
Package Height1.5(Max)
Package Length5(Max)
Package Width3.99(Max)
PCB changed8
Lead ShapeGull-wing
LTC1841/LTC1842/LTC1843
Ultralow Power Dual
Comparators with Reference
FEATURES
s
s
DESCRIPTION
The LTC
®
1841/LTC1842/LTC1843 are ultralow power dual
comparators with built-in reference (LTC1842/LTC1843).
The comparators feature less than 5.7µA supply current
over temperature, a 1.182V
±1%
reference, program-
mable hysteresis and open-drain outputs that sink cur-
rent. The reference output can drive a bypass capacitor of
up to 0.01µF without oscillation.
The LTC1841 operates from a single 2V to 11V supply or
a dual
±1V
to
±5.5V
supply. The LTC1842/LTC1843
operate from a single 2.5V to 11V supply or a dual
±1.25V
to
±5.5V
supply. The LTC1842/LTC1843 hysteresis is
easily programmed by using two resistors and the HYST
pin. The comparators’ input operates from the negative
supply to within 1.3V of the positive supply. The compara-
tors’ output stage can typically sink greater than 20mA. By
eliminating the cross-conduction current that normally
happens when the comparators change logic states, power
supply glitches are eliminated.
The LTC1841/LTC1842/LTC1843 are available in SO-8
packages.
s
s
s
s
s
s
Ultralow Quiescent Current: 3.5
µ
A Typ
Open-Drain Outputs Typically Sink
Greater Than 20mA
Wide Supply Range: (LTC1841)
Single: 2V to 11V
Dual:
±1V
to
±5.5V
Input Voltage Range Includes the Negative Supply
Reference Output Drives 0.01
µ
F Capacitor
Adjustable Hysteresis
12µs Propagation Delay with 10mV Overdrive
No Current Spike When Switching
APPLICATIONS
s
s
s
s
Battery-Powered System Monitoring
Threshold Detectors
Window Comparators
Oscillator Circuits
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
Single Li-Ion Cell to 5V Supply
1-CELL
Li-Ion
BATTERY
R1
1.5M
+
C1
100µF
R6
25k
7
V
CC
LTC1843
OUT B 8
6
L1
10µH
7
D1
SUPPLY CURRENT (µA)
3 IN A
+
R3
1M
6 REF
V
2
R4
20k
R5
1.1M
+
R2
100k
4 IN B
V
IN
SW
LT1302-5
Si9924DY
3
SHDN
I
T
8
4
PGND SENSE
V
C
GND
2
R
C
20k
C
C
0.0µF
1
OUTPUT
5V
600mA
+
C2
100µF
+
OUT A 1
R7
500k
LBO
1841/43 TA01
HYST
5
C1, C2: SANYO OS-CON
D1: MOTOROLA MBRS130LT3
L1: COILTRONICS CTX10-3
U
U
U
LTC1843 Supply Current
vs Supply Voltage
5
T
A
= 25°C
4
3
2
1
0
0
2
6
8
4
SUPPLY VOLTAGE (V)
10
12
1841/43 TA02
1
About include path
#include "\software\ucos-ii\source\ucos_ii.h"As mentioned above, my .h complete path is "D:\Program Files\uc\SOFTWARE\uCOS-II\SOURCE"Why is it that only the following path is sufficient?Isn't this an ...
wangxingfei Embedded System
RLC analog circuit design
I am a newbie in analog electronics, and I need guidance from the experts. As shown in Figure 1 below, it is an RLC charge and discharge circuit. The switch S2 is turned on at a current of 5A, the on ...
c1036783304 Analog electronics
Delay and interruption problems of single chip microcomputer and their solutions
Volatile is used to prevent related variables from being optimized. For example, reading and writing external registers. For some registers of external devices, read and write operations may trigger c...
Jacktang Microcontroller MCU
Is it better for freelance developers to develop at home or in a public place?
Recently, I have found that there are more and more freelance developers around me. They can be roughly divided into two categories: one is the freelance type, who uses their own connections or takes ...
codingfarmer Talking
【Transfer】One article to understand the design and production process of chips
[i=s]This post was last edited by wsmysyn on 2016-4-16 11:00[/i] [align=left][color=rgb(62, 62, 62)](From: Semiconductor Industry Observation)[/color][/align][align=left][color=rgb(62, 62, 62)]We are ...
wsmysyn Integrated technical exchanges
[Showing Classics] Classic Circuits - Oscillators
[i=s]This post was last edited by dontium on 2015-1-23 12:57[/i]When learning analog circuits, these circuits are experiments that must be learned. I still remember the scene when I first learned anal...
cwpersist Analogue and Mixed Signal

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2530  385  1563  2020  2869  51  8  32  41  58 
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