LTC1040_09 datasheet, PDF - EEWORLD Datasheet

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LTC1040_09: DescriptionDual Micropower Comparator; File Size213KB，12 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html

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LTC1040_09 Overview

Dual Micropower Comparator

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LTC1040

Dual Micropower

Comparator

FEATURES

DESCRIPTIO

Micropower

1.5µW (1 Sample/Second)

Power Supply Flexibility

Single Supply 2.8V to 16V

Split Supply

±2.8V

±8V

Guaranteed

Max Offset 0.75mV

Guaranteed

Max Tracking Error Between Input

Pairs

0.1%

Input Common Mode Range to Both Supply Rails

TTL/CMOS Compatible with

±5V

or Single 5V

Supply

Input Errors are Stable with Time and Temperature

The LTC

1040 is a monolithic CMOS dual comparator

manufactured using Linear Technology’s enhanced

LTCMOS

silicon gate process. Extremely low operating

power levels are achieved by internally switching the

comparator ON for short periods of time. The CMOS

output logic holds the output information continuously

while not consuming any power.

In addition to switching power ON, a switched output is

provided to drive external loads during the comparator’s

active time. This allows not only low comparator power,

but low total system power.

Sampling is controlled by an external strobe input or an

internal oscillator. The oscillator frequency is set by an

external RC network.

Each comparator has a unique input structure, giving two

differential inputs. The output of the comparator will be

high if the algebraic sum of the inputs is positive and low

if the algebraic sum of the inputs is negative.

, LTC and LT are registered trademarks of Linear Technology Corporation.

LTCMOS™ is a trademark of Linear Technology Corporation.

APPLICATIO S

Battery-Powered Systems

Remote Sensing

Window Comparator

BANG-BANG Controllers

TYPICAL APPLICATIO

Window Comparator with Symmetric Window Limits

1000

Typical LTC1040 Supply Current

vs Sampling Frequency

±5V

LTC1040

OUT

= “1” WHEN

> V

∆

COMP A

SUPPLY CURRENT, I

(µA)

–

100

A + B = “1” WHEN

–

∆ ≤

≤

∆

EXT

= 10M

–

COMP B

OUT

= “1” WHEN

< V

–

∆

0.10

0.01

0.1

100

1,000

SAMPLING FREQUENCY, f

(Hz)

LTC1040 • TA01

EXTERNALLY STROBED

10,000

LTC1040 • TA02

1040fa

LTC1040_09 Related Products

	LTC1040_09	LTC1040CSW	LTC1040CN	LTC1040MJ
Description	Dual Micropower Comparator	Dual Micropower Comparator	Dual Micropower Comparator	Dual Micropower Comparator
Is it Rohs certified?	-	incompatible	incompatible	incompatible
Maker	-	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )
Parts packaging code	-	SOIC	DIP	DIP
package instruction	-	SOP, SOP18,.4	DIP, DIP18,.3	0.300 INCH, HERMETIC SEALED, CERDIP-18
Contacts	-	18	18	18
Reach Compliance Code	-	_compli	_compli	compli
ECCN code	-	EAR99	EAR99	EAR99
Amplifier type	-	COMPARATOR	COMPARATOR	COMPARATOR
Maximum input offset voltage	-	750 µV	750 µV	750 µV
JESD-30 code	-	R-PDSO-G18	R-PDIP-T18	R-GDIP-T18
JESD-609 code	-	e0	e0	e0
Negative supply voltage upper limit	-	-9 V	-9 V	-9 V
Nominal Negative Supply Voltage (Vsup)	-	-5 V	-5 V	-5 V
Number of functions	-	2	2	2
Number of terminals	-	18	18	18
Maximum operating temperature	-	85 °C	85 °C	125 °C
Minimum operating temperature	-	-40 °C	-40 °C	-55 °C
Package body material	-	PLASTIC/EPOXY	PLASTIC/EPOXY	CERAMIC, GLASS-SEALED
encapsulated code	-	SOP	DIP	DIP
Encapsulate equivalent code	-	SOP18,.4	DIP18,.3	DIP18,.3
Package shape	-	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	-	SMALL OUTLINE	IN-LINE	IN-LINE
power supply	-	+-5 V	5/15/+-5 V	5/15/+-5 V
Certification status	-	Not Qualified	Not Qualified	Not Qualified
Nominal response time	-	80000 ns	80000 ns	80000 ns
Maximum seat height	-	2.642 mm	3.937 mm	5.08 mm
Maximum slew rate	-	3 mA	3 mA	3 mA
Supply voltage upper limit	-	9 V	9 V	9 V
Nominal supply voltage (Vsup)	-	5 V	5 V	5 V
surface mount	-	YES	NO	NO
technology	-	CMOS	CMOS	CMOS
Temperature level	-	INDUSTRIAL	INDUSTRIAL	MILITARY
Terminal surface	-	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)
Terminal form	-	GULL WING	THROUGH-HOLE	THROUGH-HOLE
Terminal pitch	-	1.27 mm	2.54 mm	2.54 mm
Terminal location	-	DUAL	DUAL	DUAL
width	-	7.5 mm	7.62 mm	7.62 mm

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