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參數(shù)資料
| 型號： | LT6100CMS8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | CAPACITOR |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 封裝： | PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 257K |
| 代理商： | LT6100CMS8 |
11
LT6100
6100f
Noise Filtering
The LT6100 provides signal filtering via pin FIL that is
internally connected to the resistors R
E
and R
O
. This pin
may be used to filter the input signal entering the LT6100’s
internal op amp, and should be used when fast ripple
current or transients flow through the sense resistor. High
frequency signals above the 300kHz bandwidth of the
LT6100’s internal amplifier will cause errors. A capacitor
connected between FIL and V
EE
creates a single pole low
pass filter with corner frequency:
f
–3dB
= 1/(2
π
R
FIL
C)
where R
FIL
= 60k. A 220pF capacitor creates a pole at
12kHz, a good choice for many applications.
Output Signal Range
The LT6100’s output signal is developed by current through
R
G2
into output resistor R
O
. The current is V
SENSE
/R
G2
.
The sense amplifier output, V
O1
, is buffered by the internal
op amp so that connecting the output pins to other
systems will preserve signal accuracy. For zero V
SENSE
,
internal circuit saturation with loss of accuracy occurs at
the minimum V
OUT
swing, 15mV above V
EE
. V
OUT
may
swing positive to within 0.75V of V
CC
or a maximum of
36V, a limit set by internal junction breakdown. Within
APPLICATIU
W
U
U
these constraints, an amplified, level shifted representa-
tion of the R
SENSE
voltage is developed at V
OUT
. The output
is well behaved driving capacitive loads to 1000pF.
Sense Input Signal Range
The LT6100 has high CMRR over the wide input voltage
range of 4.1V to 48V. The minimum operation voltage of
the sense amplifier input is 1.4V above
V
CC
. The output
remains accurate even when the sense inputs are driven to
48V. Figure 2 shows that V
OS
changes very slightly over
a wide input range. Furthermore, the sense inputs V
S+
and
V
S–
can collapse to zero volts without incurring any
damage to the device. The LT6100 can handle differential
sense voltages up to the voltage of the sense inputs
supplies. For example, V
S+
= 48V and V
S–
= 0V can be a
valid condition in a current monitoring application (Figure
3) when an overload protection fuse is blown and V
S–
voltage collapses to ground. Under this condition, the
output of the LT6100 goes to the positive rail, V
OH
. There
is no phase inversion to cause an erroneous output signal.
For the opposite case when V
S+
collapse to ground with
V
S–
held up at some higher voltage potential, the output
will sit at V
OL
. If both inputs fall below the minimum CM
voltage, V
CC
+ 1.4V, the output is indeterminate but the
LT6100 will not be damaged.
V
S
INPUT VOLTAGE (V)
0
–3.5
I
–3.0
–2.0
–1.5
–1.0
1.5
0
20
40
50
6100 F02
–2.5
0.5
1.0
–0.5
10
30
V
SENSE
= 100mV
V
CC
T
A
= 25
°
C
OUTPUT
V
EE
OUT
6100 F03
R
SENSE
FUSE
LT6100
8
V
S+
1
V
S–
A4
2
V
CC
A2
3
4
7
C2
0.1
μ
F
C1
0.1
μ
F
DC
SOURCE
5V
6
5
FIL
TO LOAD
–
+
+
Figure 2. V
OS
vs V
S
Input Voltage
Figure 3. Current Monitoring of a Fuse Protected Circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT6100CMS8#PBF | 功能描述:IC AMP CURR SENSE HI SIDE 8-MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產(chǎn)品培訓模塊:Differential Circuit Design Techniques for Communication Applications 標準包裝:1 系列:- 放大器類型:RF/IF 差分 電路數(shù):1 輸出類型:差分 轉(zhuǎn)換速率:9800 V/µs 增益帶寬積:- -3db帶寬:2.9GHz 電流 - 輸入偏壓:3µA 電壓 - 輸入偏移:- 電流 - 電源:40mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VQFN 裸露焊盤，CSP 供應(yīng)商設(shè)備封裝:16-LFCSP-VQ 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:551 (CN2011-ZH PDF) 其它名稱:ADL5561ACPZ-R7CT |
| LT6100CMS8#TR | 制造商:Linear Technology 功能描述:SP Amp Current Sense Amp Single 36V 8-Pin MSOP T/R |
| LT6100CMS8#TRPBF | 功能描述:IC AMP CURRENT SENSE 8MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SO 包裝:帶卷 (TR) |
| LT6100CMS8PBF | 制造商:Linear Technology 功能描述:Gain Selectable Current Sense Amp MSOP8 |
| LT6100HDD | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Precision, Gain Selectable High Side Current Sense Amplifier |
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