INA190A3IDCKR
SP Amp Current Sense Amp Single R-R O/P 5.5V 6-Pin SC-70 T/R
Inventory:6,434
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Part Number : INA190A3IDCKR
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Package/Case : SC70-6
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Brands : TI
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Components Categories : AmplifiersInstrumentation, OP Amps, Buffer Amps
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Datesheet : INA190A3IDCKR DataSheet (PDF)
Overview of INA190A3IDCKR
The INA190 is a low-power, voltage-output, current-shunt 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 common-mode 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.
Key Features
- 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
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Product type | Analog output | Common-mode voltage (max) (V) | 40 |
Common-mode voltage (min) (V) | -0.2 | Input offset (±) (max) (µV) | 15 |
Input offset drift (±) (typ) (µV/°C) | 0.01 | Voltage gain (V/V) | 25, 50, 100, 200, 500 |
CMRR (min) (dB) | 132 | Bandwidth (kHz) | 27, 33, 35, 37, 45 |
Supply voltage (max) (V) | 5.5 | Supply voltage (min) (V) | 1.7 |
Iq (max) (mA) | 0.09 | Number of channels | 1 |
Comparators (#) | 0 | Gain error (%) | 0.2, 0.3, 0.4 |
Gain error drift (±) (max) (ppm/°C) | 7 | Slew rate (V/µs) | 0.3 |
Features | Bidirectional, Low-side Capable, Ultra precise | Rating | Catalog |
Operating temperature range (°C) | -40 to 125 |
Warranty & Returns
Warranty, Returns, and Additional Information
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Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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