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LTC1541IDD#PBF

Description
Comparator Single R-R O/P ±6.3V/12.6V Automotive 8-Pin DFN EP Tube
CategoryThe comparator   
File Size231KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC1541IDD#PBF Overview

Comparator Single R-R O/P ±6.3V/12.6V Automotive 8-Pin DFN EP Tube

LTC1541IDD#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
Manufacturer TypeMicropower Comparator
Number of Channels per Chip1
Rail to RailRail to Rail Output
Process TechnologyCMOS
Typical CMRR (dB)63.09(Max)
Typical PSRR (dB)72.04(Max)
Maximum Propagation Delay Time (ns)20000(Typ)
Output TypeCMOS
Maximum Operating Supply Voltage (V)±6.3|12.6
Maximum Input Offset Voltage (mV)1.2@5V
Minimum Single Supply Voltage (V)2.5
Typical Single Supply Voltage (V)3|5|9|12
Maximum Single Supply Voltage (V)±12.6
Minimum Dual Supply Voltage (V)±1.25
Typical Dual Supply Voltage (V)±3|±5
Maximum Dual Supply Voltage (V)±6.3
Typical Voltage Gain (dB)120
Typical Voltage Gain Range (dB)110 to 150
Maximum Input Bias Current (uA)0.001@5V
Maximum Supply Current (mA)0.01@5V
Typical Output Current (mA)1.8@5V
Power Supply TypeSingle|Dual
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeIndustrial
PackagingTube
Standard Package NameDFN
Pin Count8
Supplier PackageDFN EP
MountingSurface Mount
Package Height0.75(Max)
Package Length3
Package Width3
PCB changed8
Lead ShapeNo Lead
LTC1541/LTC1542
Micropower Op Amp,
Comparator and Reference
FEATURES
DESCRIPTIO
Quiescent Current: 5µA Typ
Outputs Swing Rail-to-Rail
Low Op Amp Offset Voltage: 700µV Max
Reference Output Drives 0.01µF Capacitor
Internal 1.2V
±0.4%
Reference Output (LTC1541)
Low Input Bias Current: 1nA Max
Reference Output Can Source Up to 2mA
Internal
±2.25mV
Comparator Hysteresis
Comparator and Op Amp Input Range
Includes Ground
Op Amp Capable of Driving Up to 1000pF Load
Unity-Gain Stable and 12kHz Bandwidth
2.5V to 12.6V Supply Voltage Range
Daisy-Chained Control Outputs
Pin Compatible Upgrade for MAX951/MAX953
Available in 3mm x 3mm x 0.8mm DFN Package
The LTC
®
1541/LTC1542 combine a micropower ampli-
fier, comparator and bandgap reference (LTC1541) in an
8-pin package. The part operates from a single 2.5V to
12.6V or dual
±1.25V
to
±
6.3V supply with a typical supply
current of 5µA. Both the op amp and comparator feature
a common mode input voltage range that extends from the
negative supply to within 1.3V of the positive supply. The
op amp output stage swings from rail-to-rail. The
comparator’s inverting input is internally connected to the
reference output (LTC1541).
The reference output voltage is 1.2V
±1%
over the
extended temperature range. The output can drive a
bypass capacitor of up to 0.01µF without any oscillations.
It can also source up to 2mA and sink up to 20µA.
The op amp is internally compensated to be unity-gain
stable with typical GBW at 12kHz and slew rate of 8V/ms.
The comparator has
±2.25mV
of internal hysteresis to
ensure clean output switching, even with slow moving
input signals.
The LTC1541/LTC1542 are available in MSOP and SO-8
packages. For space-limited applications, the LTC1541/
LTC1542 are available in a 3mm x 3mm low profile
(0.8mm) dual fine-pitch leadless package (DFN).
APPLICATIO S
Battery- or Solar-Powered Systems
Automotive Keyless Entry
Low Frequency, Local Area Alarms/Detectors
Infrared Receivers for Remote Controls
Smoke Detectors and Safety Sensors
GSM Portable Phones
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATIO
1N457
TYPE R
1k
100k
1N457
10M
Pilot Light Flame Detector with Low-Battery Lockout
V
IN
= 3.6V TO 9V
3
+
+
8
1
10k
2.2µF 1/2 LTC1541
2
OUTPUT HIGH = “ON”
OUTPUT LOW = “OFF”
PERCENT OF UNITS (%)
2N3904
SCR LOAD
I
CC
= 7µA AT V
IN
= 5V
2M
5
1M
6
2M
1.2V INTERNAL
REFERENCE
1541/42 • TA01
+
1/2 LTC1541
7
LOW BATTERY
0
–600
0
300
–300
INPUT OFFSET VOLTAGE (µV)
600
1541/42 TA02
10k
VN2222
U
Op Amp V
OS
Distribution,
V
CM
= 2.5V, SO-8 Package
Total of 839 Units
50
V
CC
= 5V
V
SS
= 0V
40
30
20
10
U
U
15412fd
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