INA190A2IDCKR Current Sense Amplifiers 40V bi-directional ultra-precise current sense amplifier

Short Description:

Manufacturers: Texas Instruments
Product Category: PMIC – Motor Drivers, Controllers
Data Sheet: INA190A2IDCKR
Description: IC MTR DRV MULTPHAS 6-60V 40WQFN
RoHS status: RoHS Compliant


Product Detail

Features

Applications

Product Tags

♠ Product Description

Product Attribute Attribute Value
Manufacturer: Texas Instruments
Product Category: Current Sense Amplifiers
RoHS:  Details
Series: INA190
Number of Channels: 1 Channel
GBP - Gain Bandwidth Product: 37 kHz
Vcm - Common Mode Voltage: - 0.2 V to + 40 V
CMRR - Common Mode Rejection Ratio: 150 dB
Ib - Input Bias Current: 0.5 nA
Vos - Input Offset Voltage: - 3 uV
Supply Voltage - Max: 5.5 V
Supply Voltage - Min: 1.7 V
Operating Supply Current: 65 uA
Gain Error: - 0.06 %
Minimum Operating Temperature: - 40 C
Maximum Operating Temperature: + 125 C
Mounting Style: SMD/SMT
Package / Case: SC70-6
Packaging: Reel
Packaging: Cut Tape
Packaging: MouseReel
Brand: Texas Instruments
en - Input Voltage Noise Density: 75 nV/sqrt Hz
Gain V/V: 50 V/V
Ios - Input Offset Current: 0.07 nA
Moisture Sensitive: Yes
Product: Current Sense Amplifiers
Product Type: Current Sense Amplifiers
Settling Time: 30 us
Shutdown: Shutdown
SR - Slew Rate: 0.3 V/us
Factory Pack Quantity: 3000
Subcategory: Amplifier ICs
Unit Weight: 0.000240 oz

♠ INA190 Bidirectional, Low-Power, Zero-Drift, Wide Dynamic Range, Precision Current-Sense Amplifier With Enable

The INA190 is a low-power, voltage-output, currentshunt monitor (also called a current-sense amplifier). This device is commonly used for overcurrent protection, precision current measurement for system optimization, or in closed-loop feedback circuits. The INA190 can sense drops across shunts at commonmode voltages from –0.2 V to +40 V, independent of the supply voltage.

The low input bias current of the device permits the use of larger current-sense resistors, thus providing accurate current measurements in the microamp range. The low offset voltage of the zero-drift architecture extends the dynamic range of the current measurement. This feature allows for smaller sense resistors with lower power loss, while still providing accurate current measurements.

The INA190 operates from a single 1.7-V to 5.5-V power supply, and draws a maximum of 65 µA of supply current when enabled; only 0.1 µA when disabled. Five fixed gain options are available: 25 V/V, 50 V/V, 100 V/V, 200 V/V, or 500 V/V. The device is specified over the operating temperature range of –40°C to +125°C, and offered in UQFN, SC70, and SOT-23 packages.


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  • • Low input bias currents: 500 pA (typ) (enables microamp current measurement)

    • Low power:
    – Low supply voltage, VS: 1.7 V to 5.5 V
    – Low shutdown current: 100 nA (max)
    – Low quiescent current: 50 μA at 25°C (typ)

    • Accuracy:
    – Common-mode rejection ratio: 132 dB (min)
    – Gain error: ±0.2% (A1 device)
    – Gain drift: 7 ppm/°C (max)
    – Offset voltage, VOS: ±15 μV (max)
    – Offset drift: 80 nV/°C (max)

    • Wide common-mode voltage: –0.2 V to +40 V

    • Bidirectional current sensing capability

    • Gain options:
    – INA190A1: 25 V/V
    – INA190A2: 50 V/V
    – INA190A3: 100 V/V
    – INA190A4: 200 V/V
    – INA190A5: 500 V/V

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    • Baseband unit (BBU)

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    • Battery test

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