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參數(shù)資料
| 型號： | LTC1040CSW#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC COMPARATOR LOW PWR DUAL18SOIC |
| 標準包裝： | 40 |
| 系列： | LTCMOS™ |
| 類型： | 通用 |
| 元件數(shù)： | 2 |
| 輸出類型： | CMOS，TTL |
| 電壓 - 電源，單路/雙路(±)： | 2.8 V ~ 16 V，±2.8 V ~ 8 V |
| 電壓 - 輸入偏移（最小值）： | 4.5mV @ ±8V |
| 電流 - 輸入偏壓（最小值）： | 300pA @ ±5V |
| 電流 - 靜態(tài)（最大值）： | 3mA |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 18-SOIC（0.295"，7.50mm 寬） |
| 安裝類型： | 表面貼裝 |
| 包裝： | 管件 |
1
LTC1040
1040fa
s
Micropower
1.5
W (1 Sample/Second)
s
Power Supply Flexibility
Single Supply 2.8V to 16V
Split Supply
±2.8V to ±8V
s
Guaranteed Max Offset 0.75mV
s
Guaranteed Max Tracking Error Between Input
Pairs
± 0.1%
s
Input Common Mode Range to Both Supply Rails
s
TTL/CMOS Compatible with
±5V or Single 5V
Supply
s
Input Errors are Stable with Time and Temperature
The LTC
1040 is a monolithic CMOS dual comparator
manufactured using Linear Technology’s enhanced
LTCMOS
TM 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.
Window Comparator with Symmetric Window Limits
Dual Micropower
Comparator
Typical LTC1040 Supply Current
vs Sampling Frequency
FEATURES
APPLICATIO S
U
DESCRIPTIO
U
s
Battery-Powered Systems
s
Remote Sensing
s
Window Comparator
s
BANG-BANG Controllers
, LTC and LT are registered trademarks of Linear Technology Corporation.
VC
AOUT = “1” WHEN
VIN > VC +
BOUT = “1” WHEN
VIN < VC –
A + B = “1” WHEN
VC – ≤ VIN ≤ VC +
VIN
LTC1040 TA01
–
+
–
+
COMP A
COMP B
LTC1040
SAMPLING FREQUENCY, fS (Hz)
0.1
SUPPLY
CURRENT,
I
S
(
A)
10
100
1000
1,000
LTC1040 TA02
1
0.10
0.01
1
10
100
10,000
VS = ±5V
REXT = 10M
EXTERNALLY STROBED
TYPICAL APPLICATIO
U
LTCMOS is a trademark of Linear Technology Corporation.
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