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INA190A4IRSWT
40-V, bidirectional, ultraprecise current sense amplifier with picoamp IB & ENABLE
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Manufacturer:
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Mfr.Part #:
INA190A4IRSWT
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Datasheet:
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Series:
Zero-Drift
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Amplifier Type:
Current Sense
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Number of Circuits:
1
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Output Type:
Rail-to-Rail
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EDA/CAD Models:
Availability: 6891 PCS
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INA190A4IRSWT General Description
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
Category | Integrated Circuits (ICs)LinearAmplifiersInstrumentation, OP Amps, Buffer Amps | Series | Zero-Drift |
Amplifier Type | Current Sense | Number of Circuits | 1 |
Output Type | Rail-to-Rail | Slew Rate | 0.25V/µs |
Gain Bandwidth Product | 33 kHz | -3db Bandwidth | 20 kHz |
Current - Input Bias | 500 pA | Voltage - Input Offset | 2 µV |
Current - Supply | 40µA | Voltage - Supply Span (Min) | 1.7 V |
Voltage - Supply Span (Max) | 5.5 V | Operating Temperature | -40°C ~ 125°C (TA) |
Mounting Type | Surface Mount | Base Product Number | INA190 |
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 | feature-type | Current Sense Amplifier |
feature-number-of-elements-per-chip | 1 | feature-number-of-channels-per-chip | 1 |
feature-rail-to-rail | Rail to Rail Output | feature-typical-gain-bandwidth-product-mhz | |
feature-maximum-voltage-gain-db | 46.02(Typ) | feature-minimum-cmrr-db | 132 |
feature-minimum-psrr-db | 120(Typ) | feature-output-type | |
feature-maximum-input-offset-voltage-mv | 0.015@5V | feature-maximum-input-bias-current-ua | 0.003@5V |
feature-maximum-input-resistance-mohm | feature-maximum-power-dissipation-mw | ||
feature-packaging | Tape and Reel | feature-rad-hard | |
feature-pin-count | 10 | feature-cecc-qualified | |
feature-esd-protection | feature-escc-qualified | ||
feature-military | No | feature-aec-qualified | No |
feature-aec-qualified-number | feature-eccn-code | EAR99 | |
feature-svhc | feature-svhc-exceeds-threshold | No |
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Availability: 6891 PCS
+BOMQty. | Unit Price | Ext. Price |
---|---|---|
1+ | $1.796 | $1.80 |
250+ | $0.697 | $174.25 |
500+ | $0.671 | $335.50 |
1000+ | $0.658 | $658.00 |
The prices below are for reference only.
All bill of materials (BOM) can be sent via email to [email protected], or fill below form to Quote for INA190A4IRSWT, guaranteed quotes back within 12hr.