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INA191 Scheda tecnica(PDF) 20 Page - Texas Instruments

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Il numero della parte INA191
Spiegazioni elettronici  INAx191 40-V, Bidirectional, Ultra-Precise Current Sense Amplifier With picoamp IB and ENABLE in WCSP Package
PDF  41 Pages
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

INA191 Scheda tecnica(HTML) 20 Page - Texas Instruments

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The output of the INAx191 goes to a high-impedance state when disabled; therefore, it is possible to connect
multiple outputs of the INAx191 together to a single ADC or measurement device, as shown in Figure 7-7. When
connected in this way, enable only one INAx191 at a time, and make sure both devices have the same supply
voltage. Using the INA2191 with the same approach as shown in Figure 7-7 provides the capability to monitor
two currents with a single device.
ADC
RSENSE
LOAD
Microcontroller
RSENSE
LOAD
0.1 F
Supply Voltage
1.7 V to 5.5 V
GPIO1
GPIO2
ENABLE
VS
OUT
GND
0.1 F
Supply Voltage
1.7 V to 5.5 V
TI Device
Bus Voltage1
up to 40 V
Bus Voltage2
up to 40 V
IN+
IN±
ENABLE
VS
OUT
GND
TI Device
IN+
IN±
Figure 7-7. Multiplexing Multiple Devices With the ENABLE Pin
INA191, INA2191
SLYS020B – FEBRUARY 2019 – REVISED FEBRUARY 2021
www.ti.com
20
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Product Folder Links: INA191 INA2191



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