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INA280A3QDCKRQ1

更新时间： 2024-11-22 02:50:19
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
25页 1650K
描述
INA280-Q1 AEC-Q100, 2.7-V to 120-V, 1.1-MHz, High Precision Current Sense Amplifier in Small (SC-70) Package

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INA280A3QDCKRQ1 数据手册

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INA280-Q1  
SBOSA48 – NOVEMBER 2020  
INA280-Q1 AEC-Q100, 2.7-V to 120-V, 1.1-MHz, High Precision Current Sense  
Amplifier in Small (SC-70) Package  
1 Features  
3 Description  
•
AEC-Q100 qualified for automotive applications:  
– Temperature grade 1: –40 °C to +125 °C, TA  
Functional Safety-Capable  
– Documentation available to aid functional safety  
system design  
Wide common-mode voltage:  
– Operational voltage: 2.7 V to 120 V  
– Survival voltage: −20 V to +122 V  
Excellent CMRR:  
– 120-dB DC (minimum)  
– 85-dB AC at 50 kHz  
Accuracy  
– Gain:  
The INA280-Q1 is a current sense amplifier that can  
measure voltage drops across shunt resistors over a  
wide common-mode range from 2.7 V to 120 V. It is in  
a highly space-efficient SC-70 package with a PCB  
footprint of only 2.0 mm × 2.1 mm. The current  
measurement accuracy is achieved thanks to the  
combination of an ultra-low offset voltage of ±150 µV  
(maximum), a small gain error of ±0.5% (maximum),  
and a high DC CMRR of 140 dB (typical). The  
INA280-Q1 is not only designed for DC current  
measurement, but also for high-speed applications  
(like fast overcurrent protection, for example) with a  
high bandwidth of 1.1 MHz (at gain of 20 V/V) and an  
85-dB AC CMRR (at 50 kHz).  
•
•
•
•
•
•
Gain error: ±0.5% (maximum)  
Gain drift: ±20 ppm/°C (maximum)  
The INA280-Q1 operates from a single 2.7-V to 20-V  
supply and draws a 370-μA supply current (typical).  
The INA280-Q1 available with five gain options: 20  
V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. The low  
offset and drift of the INA280-Q1 enables accurate  
current sensing over the extended operating  
temperature range of −40 °C to +125 °C.  
– Offset:  
•
•
Offset voltage: ±150 µV (maximum)  
Offset drift: ±1 µV/°C (maximum)  
•
Available gains:  
– INA280A1-Q1: 20 V/V  
– INA280A2-Q1: 50 V/V  
– INA280A3-Q1: 100 V/V  
– INA280A4-Q1: 200 V/V  
– INA280A5-Q1: 500 V/V  
High bandwidth: 1.1 MHz  
Slew rate: 2 V/µs  
Device Information  
PART NUMBER  
PACKAGE(1)  
BODY SIZE (NOM)  
INA280-Q1  
SC-70 (5)  
2.00 mm × 1.25 mm  
(1) For all available packages, see the package option  
addendum at the end of the data sheet.  
•
•
•
VS  
VCM  
Quiescent current: 370 µA  
ISENSE  
2 Applications  
R1  
R1  
IN+  
œ
•
•
•
•
•
Solid-state LiDAR  
Current  
RSENSE  
Bias  
Feedback  
Automotive HVAC compressor module  
Automotive interior heater module  
Automotive parking heater module  
Automotive Pumps  
OUT  
+
INœ  
Buffer  
SAR  
ADC  
Load  
RL  
GND  
Typical Application  
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
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