Datasheet 搜索 > 放大器、缓冲器 > Linear Technology(凌力尔特) > LT1787HVIMS8#TR 数据手册 > LT1787HVIMS8#TR 数据手册 1/16 页
¥ 30.613
LT1787HVIMS8#TR 数据手册 - Linear Technology(凌力尔特)
制造商:
Linear Technology(凌力尔特)
分类:
放大器、缓冲器
封装:
MSOP
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
导航目录
LT1787HVIMS8#TR数据手册
Page:
of 16 Go
若手册格式错乱,请下载阅览PDF原文件
1
LT1787/LT1787HV
1787fc
Precision, High Side
Current Sense Amplifiers
■
Input Offset Voltage: 75
µ
V (Max)
■
60V Supply Operation (LT1787HV)
■
12-Bit Dynamic Range
■
Operating Current: 60µA
■
User-Selectable External Sense Resistor
■
Bidirectional High Side Current Sensing
■
Unidirectional or Bidirectional Output
■
Input Noise Filtering
■
–40°C to 125°C Operating Temperature Range
■
Available in 8-Lead SO and MSOP Packages
The LT
®
1787 is a complete micropower precision high
side current sense amplifier. The LT1787 monitors bidi-
rectional currents via the voltage across an external sense
resistor. A current or voltage output indicates the direction
and magnitude of the sense current. The LT1787 delivers
greater than a 12-bit dynamic range with ultralow 40µV
input offset voltage compared to a typical 250mV full-
scale input voltage. A fixed gain of 8 is set by onboard
precision resistors. Input signal filtering is easily imple-
mented with a capacitor between the FIL
–
and FIL
+
pins.
The LT1787HV operates from 2.5V to 60V total supply
voltage and the LT1787 operates from 2.5V to 36V total
supply voltage. Both versions have a PSRR in excess of
120dB. The LT1787/LT1787HV draw only 60µA and are
available in 8-lead SO and MSOP packages.
■
Battery Monitoring
■
Power Monitoring
■
Portable Phones
■
Cellular Phones
■
Portable Test/Measurement Systems
■
Battery-Operated Systems
Input Offset Voltage vs Supply Voltage
12-Bit Dynamic Resolution Unidirectional Output into LTC
®
1286 ADC
TOTAL SUPPLY VOLTAGE (V)
0
INPUT OFFSET VOLTAGE (µV)
10
20
30 40
1787 TA01b
50
50
40
30
20
10
0
–10
–20
–30
–40
–50
60
18
27
36
45
LT1787HV
R
SENSE
0.0016Ω
1787 TA01
C1
1µF
5V
FIL
+
FIL
–
R1
15k
C2
0.1µF
V
OUT
= V
BIAS
+ (8 • I
LOAD
• R
SENSE
)
I = 100A
2.5V TO 60V
TO
LOAD
LT1634-1.25
TO µP
V
REF
V
CC
GND
LTC1286
CS
CLK
D
OUT
+IN
–IN
V
BIAS
V
OUT
R
OUT
20k
V
S
–
V
S
+
DNC
V
EE
APPLICATIO S
U
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册,每天更新 5,000 多个 PDF 文件