LTC1443IS#TR Linear Technology, LTC1443IS#TR Datasheet

IC COMP QUAD LP 1.182VREF 16SOIC

LTC1443IS#TR

Manufacturer Part Number
LTC1443IS#TR
Description
IC COMP QUAD LP 1.182VREF 16SOIC
Manufacturer
Linear Technology
Type
with Voltage Referencer
Datasheet

Specifications of LTC1443IS#TR

Number Of Elements
4
Output Type
CMOS, TTL
Voltage - Supply
2 V ~ 11 V, ±1 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.154", 3.90mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC1443IS#TRLTC1443IS
Manufacturer:
LT
Quantity:
188
Company:
Part Number:
LTC1443IS#TRLTC1443IS
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FEATURES
TYPICAL APPLICATIO
APPLICATIO S
All other trademarks are the property of their respective owners.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Battery-Powered System Monitoring
Threshold Detectors
Window Comparators
Oscillator Circuits
Ultralow Quiescent Current: 8.5
Reference Output Drives 0.01
Adjustable Hysteresis (LTC1444/LTC1445)
Wide Supply Range
Input Voltage Range Includes the Negative Supply
TTL/CMOS Compatible Outputs
Propagation Delay: 12µs (Typ) (10mV Overdrive)
No Crowbar Current
40mA Continuous Source Current
Pin Compatible Upgrades for MAX924 (LTC1443)
Low Profile (5mm × 4mm × 0.8mm) DFN Package
Single: 2V to 11V
Dual: ±1V to ±5.5V
V
IN
3.4M
1%
1.21M
1%
Reference Settling Test Circuit
U
5V
TO 8V
R2
2.4M
10k
R1
R3
430Ω
C1
1.0µF
14
4
8
5
IN A
IN A
HYST
REF
U
µ
F Capacitor
µ
+
A Max
+
V
+
3
9
LTC1445
LTC1443/44/45 • TA01
V
2
OUT
Comparators with Reference
DESCRIPTIO
The LTC
comparators with a built-in reference. The comparators
feature less than 8.5µA supply current over temperature,
an internal reference (1.182V ±1% for LTC1443 or 1.221V
±1% for LTC1444/LTC1445), programmable hysteresis
(LTC1444/LTC1445) and TTL/CMOS output (LTC1443/
LTC1445) that sinks and sources current (open-drain
output for LTC1444). The reference output can drive a
bypass capacitor of up to 0.01µF without oscillation.
The comparators operate from a single 2V to 11V supply
or a dual ±1V to ±5.5V supply (LTC1443). Comparator
hysteresis is easily programmable using two resistors and
the HYST pin (LTC1444/LTC1445). Each comparator’s
input operates from the negative supply to within 1.3V of
the positive supply. The LTC1443/LTC1445 comparator
output stage can continuously source up to 40mA. By
eliminating the cross-conducting current that normally
happens when the comparator changes logic states, power
supply glitches are eliminated.
The LTC1443/LTC1444/LTC1445 are available in the
16-pin SO, PDIP and DFN packages.
V
®
+
V
1443/LTC1444/LTC1445 are ultralow power quad
OUT
LTC1443/LTC1444/LTC1445
REF
8V
5V
Ultralow Power Quad
U
Reference Settling
2ms/DIV
LTC1443/1444/1445 • TA02
144345fc
1

Related parts for LTC1443IS#TR

LTC1443IS#TR Summary of contents

Page 1

... Low Profile (5mm × 4mm × 0.8mm) DFN Package ■ U APPLICATIO S ■ Battery-Powered System Monitoring ■ Threshold Detectors Window Comparators ■ ■ Oscillator Circuits , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. U TYPICAL APPLICATIO Reference Settling Test Circuit ...

Page 2

LTC1443/LTC1444/LTC1445 ABSOLUTE AXI U RATI GS Voltage: + – + – GND, GND – HYST ................. (V + 0.3V REF ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER Power Supply + V Supply Voltage Range I Supply Current CC Comparator V Comparator Input Offset Voltage OS + – I Input Leakage Current ( ...

Page 4

LTC1443/LTC1444/LTC1445 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER Reference V Reference Voltage REF I Reference Output Source Current SOURCE I Reference Output Sink Current SINK Noise Noise Voltage Note 1: Stresses beyond those listed under Absolute ...

Page 5

W U TYPICAL PERFOR A CE CHARACTERISTICS LTC1443 Reference Output Voltage vs Output Load Current 1.194 + – GND 1.192 T = 25°C A 1.190 1.188 SINK 1.186 1.184 1.182 1.180 ...

Page 6

LTC1443/LTC1444/LTC1445 W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Comparator Input Frequency 10000 1000 100 C OUT C = 15pF OUT 100 1k INPUT FREQUENCY (Hz CTIO S LTC1443 ...

Page 7

CTIO (Pin 7): Noninverting Input of Comparator B. Input – common mode range from typically 10pA at 25°C. REF (Pin 8): Reference Output. With respect to V source ...

Page 8

LTC1443/LTC1444/LTC1445 U U APPLICATIO S I FOR ATIO – The reference accuracy is 1.5% from – 40°C to 85°C. It can source up to 200µA and sink up to 15µA with a 5V supply. The reference can drive ...

Page 9

U U APPLICATIO S I FOR ATIO producing a maximum hysteresis voltage band of 100mV. If hysteresis is not wanted, the HYST pin should be shorted to REF. Acceptable values for I range from 0.1µA to 5µA. If REF 2.4M ...

Page 10

LTC1443/LTC1444/LTC1445 PACKAGE DESCRIPTIO .300 – .325 (7.620 – 8.255) .008 – .015 (0.203 – 0.381) +.035 .325 –.015 ( ) +0.889 8.255 –0.381 NOTE: 1. DIMENSIONS ARE MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR ...

Page 11

... SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. LTC1443/LTC1444/LTC1445 ...

Page 12

... Available in SOT-23 and 2mm × 3mm DFN Packages www.linear.com ● R8 R10 R11 732k 3.37M 51k R12 51k 1/4 LTC1444 – 1/4 LTC1444 12 – C4 0.22µF LTC1443/44/45 • F06 LT 0206 REV C • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 1995 V CC NMI µP RESET 144345fc ...

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