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參數(shù)資料
| 型號： | LT1787CS8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 模擬信號調理 |
| 英文描述： | Precision, High Side Current Sense Amplifiers |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SOP-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 205K |
| 代理商： | LT1787CS8 |
1
LT1787/LT1787HV
Precision, High Side
Current Sense Amplifiers
I
Input Offset Voltage: 75
μ
V (Max)
I
60V Supply Operation (LT1787HV)
I
12-Bit Dynamic Range
I
Operating Current: 60
μ
A
I
User-Selectable External Sense Resistor
I
Bidirectional High Side Current Sensing
I
Unidirectional or Bidirectional Output
I
Input Noise Filtering
I
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 depicts the direction
and magnitude of the sense current. The LT1787 delivers
greater than a 12-bit dynamic range with ultralow 40
μ
V
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 60
μ
A and are
available in 8-lead SO and MSOP packages.
I
Battery Monitoring
I
Power Monitoring
I
Portable Phones
I
Cellular Phones
I
Portable Test/Measurement Systems
I
Battery-Operated Systems
, LTC and LT are registered trademarks of Linear Technology Corporation.
Input Offset Voltage vs Supply Voltage
12-Bit Dynamic Resolution Unidirectional Output into LTC
1286 ADC
TOTAL SUPPLY VOLTAGE (V)
0
I
μ
V
10
20
30
40
1787 TA01b
50
50
40
30
20
10
0
–10
–20
–30
–40
–50
60
1
8
2
7
3
6
4
5
LT1787HV
R
SENSE
0.0016
1787 TA01
C1
1
μ
F
5V
FIL
+
V
S+
FIL
–
V
S–
R1
15k
C2
0.1
μ
F
V
OUT
= V
BIAS
+ (8 I
LOAD
R
SENSE
)
I = 100A
2.5V TO 60V
TO
LOAD
LT1634-1.25
TO
μ
P
V
REF
V
CC
GND
LTC1286
CS
CLK
D
OUT
+IN
–IN
V
BIAS
V
OUT
R
OUT
20k
DNC
V
EE
APPLICATIU
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
相關PDF資料 |
PDF描述 |
|---|---|
| LT1787HV | Precision, High Side Current Sense Amplifiers |
| LT1787HVIS8 | Precision, High Side Current Sense Amplifiers |
| LT1787HVCMS8 | Precision, High Side Current Sense Amplifiers |
| LT1789-1 | Micropower, Single Supply Rail-to-Rail Output Instrumentation Amplifiers |
| LT1789-10 | Micropower, Single Supply Rail-to-Rail Output Instrumentation Amplifiers |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT1787CS8#PBF | 功能描述:IC AMP PREC CURRENT SENSE 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT |
| LT1787CS8#PBF | 制造商:Linear Technology 功能描述:IC, CURRENT SENSE AMP, 300KHZ, SOIC-8 |
| LT1787CS8#TR | 功能描述:IC AMP PREC CURRENT SENSE 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:10-MSOP 包裝:管件 |
| LT1787CS8#TRPBF | 功能描述:IC AMP PREC CURRENT SENSE 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:10-MSOP 包裝:管件 |
| LT1787CS8PBF | 制造商:Linear Technology 功能描述:Current Sense Amp Precision 36V SOIC8 |
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