INA186A3QDCKRQ1 Current Sense Amplifiers AEC-Q100 40V bi-directional high-precision current sense amplifier
♠ Product Description
| Product Attribute | Attribute Value |
| Manufacturer: | Texas Instruments |
| Product Category: | Current Sense Amplifiers |
| RoHS: | Details |
| Series: | INA186 |
| Number of Channels: | 1 Channel |
| GBP - Gain Bandwidth Product: | 35 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: | 90 uA |
| Gain Error: | - 0.04 % |
| Minimum Operating Temperature: | - 40 C |
| Maximum Operating Temperature: | + 125 C |
| Mounting Style: | SMD/SMT |
| Package / Case: | SC70-6 |
| Qualification: | AEC-Q100 |
| Packaging: | Reel |
| Packaging: | Cut Tape |
| Packaging: | MouseReel |
| Accuracy: | 1 % |
| Amplifier Type: | Low-Side/High-Side Current Sense Amplifier |
| Brand: | Texas Instruments |
| en - Input Voltage Noise Density: | 75 nV/sqrt Hz |
| Gain V/V: | 100 V/V |
| Input Type: | Common Mode |
| Moisture Sensitive: | Yes |
| Output Current per Channel: | 8 mA |
| Output Type: | Analog |
| Product: | Current Sense Amplifiers |
| Product Type: | Current Sense Amplifiers |
| PSRR - Power Supply Rejection Ratio: | 10 uV/V |
| Settling Time: | 30 us |
| Shutdown: | No Shutdown |
| SR - Slew Rate: | 0.3 V/us |
| Factory Pack Quantity: | 3000 |
| Subcategory: | Amplifier ICs |
| Topology: | Common-Mode |
| Unit Weight: | 0.000247 oz |
♠ INA186-Q1 AEC-Q100, 40-V, Bidirectional, High-Precision Current Sense Amplifier With picoamp IB and ENABLE
The INA186-Q1 is an automotive, low-power, voltageoutput, current-sense amplifier (also called a currentshunt monitor). This device is commonly usedfor monitoring systems directly connected to an automotive 12-V battery. The INA186-Q1 can sense drops across shunts at common-mode voltages from –0.2 V to +40 V, independent of the supply voltage. In addition, the input pins have an absolute maximum voltage of 42V.
The low input bias current of the INA186-Q1 permits the use of larger current-sense resistors, thus providing accurate current measurements in the microamp range. The low offset voltage of the zerodrift 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 INA186-Q1 operates from a single 1.7-V to 5.5-V power supply, and draws a maximum of 90 μA of supply current . 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 SC70, SOT-23 (5), and SOT-23 (8) packages. The SC70 and SOT-23 (DDF) packages supports bidirectional current measurement, whereas the SOT-23 (DBV) only supports current measurement in one direction.
• 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 range, VCM:
–0.2 V to +40 V with survivability up to 42 V (recommended for automotive 12-V battery applications)
• Low input bias currents, IIB: 500 pA (typical)
• Low power:
– Low supply voltage, VS: 1.7 V to 5.5 V
– Low quiescent current, IQ: 48 µA (typical)
• Accuracy:
– Common-mode rejection ratio: 120 dB (minimum)
– Gain error, EG: ±1% (maximum)
– Gain drift: 10 ppm/°C (maximum)
– Offset voltage, VOS: ±50 μV (maximum)
– Offset drift: 0.5 μV/°C (maximum)
• Bidirectional current sensing capability
• Gain options:
– INA186A1-Q1: 25 V/V
– INA186A2-Q1: 50 V/V
– INA186A3-Q1: 100 V/V
– INA186A4-Q1: 200 V/V
– INA186A5-Q1: 500 V/V
• Body control module (BCM)
• Telematics control unit
• Emergency call (eCall)
• 12-V battery management system (BMS)
• Automotive head unit
