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LTC1541CS8

Description
IC opamp/comp/ref micrpwr 8soic
CategoryAnalog mixed-signal IC    The signal circuit   
File Size232KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric View All

LTC1541CS8 Overview

IC opamp/comp/ref micrpwr 8soic

LTC1541CS8 Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeSOIC
package instructionSOP,
Contacts8
Manufacturer packaging codeS8
Reach Compliance Codenot_compliant
ECCN codeEAR99
Samacsys DescriptionAmplifier, Comparator, Reference IC GSM 8-SOIC
Other featuresCAN ALSO OPERATE WITH 5V SUPPLY
Analog Integrated Circuits - Other TypesANALOG CIRCUIT
JESD-30 codeR-PDSO-G8
JESD-609 codee0
length4.9025 mm
Humidity sensitivity level1
Number of functions1
Number of terminals8
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height1.752 mm
Maximum supply voltage (Vsup)12.6 V
Minimum supply voltage (Vsup)2.5 V
Nominal supply voltage (Vsup)3 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width3.899 mm
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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