Specifications
| Type | Description |
|---|---|
| Part Number | INA186 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package Case | SC70 (6) 2.00 mm x 1.25 mm; SOT-23 (8) 2.90 mm x 1.60 mm; DSBGA (6) 1.17 mm x 0.765 mm |
| Common-Mode Input Range | GND - 0.2 V to 40 V; Recommended operating conditions |
| Input Pin Voltage Range | GND - 0.2 V to 40 V; Recommended operating conditions |
| Operating Supply Voltage | 1.7 V to 5.5 V; Recommended operating conditions |
| Reference Pin Voltage Range | GND to VS; Recommended operating conditions |
| Operating Free-Air Temperature | -40°C to 125°C; Recommended operating conditions |
| Supply Voltage Absolute Maximum | 6 V; Absolute maximum ratings, over operating free-air temperature range |
| Differential Analog Input Absolute Maximum | -42 V to 42 V; VIN+ - VIN- absolute maximum |
| Analog Input Voltage Absolute Maximum | GND - 0.3 V to 42 V; VIN+ and VIN- with respect to GND |
| ENABLE Pin Voltage Absolute Maximum | GND - 0.3 V to 6 V; Absolute maximum ratings |
| REF and OUT Voltage Absolute Maximum | GND - 0.3 V to VS + 0.3 V; Absolute maximum ratings |
| Input Current Absolute Maximum | 5 mA; Input current into any pin |
| Operating Temperature Absolute Maximum | -55°C to 150°C; Absolute maximum ratings |
| Junction Temperature Absolute Maximum | 150°C; Absolute maximum ratings |
| Storage Temperature | -65°C to 150°C; Absolute maximum ratings |
| Human-Body Model ESD Rating | ±3000 V; Per ANSI/ESDA/JEDEC JS-001 |
| Charged-Device Model ESD Rating | ±1000 V; Per JEDEC JESD22-C101 |
| Junction-to-Ambient Thermal Resistance, YFD DSBGA | 141.4°C/W; 6 pins |
| Junction-to-Ambient Thermal Resistance, DCK SC70 | 170.7°C/W; 6 pins |
| Junction-to-Ambient Thermal Resistance, DDF SOT-23 | 137.2°C/W; 8 pins |
| Common-Mode Rejection Ratio | 120 dB min, 150 dB typ; VSENSE = 0 mV, VIN+ = -0.1 V to 40 V, TA = -40°C to 125°C |
| Offset Voltage RTI | -3 µV typ, ±50 µV max; VS = 1.8 V, VSENSE = 0 mV |
| Offset Drift RTI | 0.05 µV/°C typ, 0.5 µV/°C max; VSENSE = 0 mV, TA = -40°C to 125°C |
| Power-Supply Rejection Ratio RTI | -1 µV/V typ, ±10 µV/V max; VSENSE = 0 mV, VS = 1.7 V to 5.5 V |
| Input Bias Current | 0.5 nA typ, 3 nA max; VSENSE = 0 mV |
| Input Offset Current | ±0.07 nA typ; VSENSE = 0 mV |
| Gain, INA186A1 | 25 V/V |
| Gain, INA186A2 | 50 V/V |
| Gain, INA186A3 | 100 V/V |
| Gain, INA186A4 | 200 V/V |
| Gain, INA186A5 | 500 V/V |
| Gain Error | -0.04% typ, ±1% max; VOUT = 0.1 V to VS - 0.1 V |
| Gain Error Drift | 2 ppm/°C typ, 10 ppm/°C max; TA = -40°C to 125°C |
| Nonlinearity Error | ±0.01% typ; VOUT = 0.1 V to VS - 0.1 V |
| Reference Voltage Rejection Ratio | ±2 µV/V typ, ±10 µV/V max; VREF = 100 mV to VS - 100 mV, TA = -40°C to 125°C |
| Maximum Capacitive Load | 1 nF; No sustained oscillation |
| Output Swing to VS Rail | VS - 20 mV typ, VS - 40 mV max; VS = 1.8 V, RL = 10 kΩ to GND, TA = -40°C to 125°C |
| Output Swing to GND | VGND + 0.05 mV typ, VGND + 1 mV max; VS = 1.8 V, RL = 10 kΩ to GND, TA = -40°C to 125°C, VSENSE = -10 mV, VREF = 0 V |
| Zero Current Output Voltage | VGND + 2 mV typ, VGND + 10 mV max; VS = 1.8 V, RL = 10 kΩ to GND, TA = -40°C to 125°C, VSENSE = 0 mV, VREF = 0 V |
| Bandwidth, A1 | 45 kHz; CLOAD = 10 pF |
| Bandwidth, A2 | 37 kHz; CLOAD = 10 pF |
| Bandwidth, A3 | 35 kHz; CLOAD = 10 pF |
| Bandwidth, A4 | 33 kHz; CLOAD = 10 pF |
| Bandwidth, A5 | 27 kHz; CLOAD = 10 pF |
| Slew Rate | 0.3 V/µs; VS = 5.0 V, VOUT = 0.5 V to 4.5 V |
| Settling Time | 30 µs; From current step to within 1% of final value |
| Voltage Noise Density RTI | 75 nV/√Hz; TA = 25°C unless otherwise noted |
| ENABLE Leakage Input Current | 1 nA typ, 100 nA max; 0 V <= VENABLE <= VS |
| ENABLE High-Level Input Voltage, DDF | 0.7 x VS min, 6 V max |
| ENABLE Low-Level Input Voltage, DDF | 0 V min, 0.3 x VS max |
| ENABLE Hysteresis, DDF | 300 mV |
| ENABLE High-Level Input Voltage, YFD | 1.35 V min, 5.5 V max |
| ENABLE Low-Level Input Voltage, YFD | 0 V min, 0.4 V max |
| ENABLE Hysteresis, YFD | 100 mV |
| Output Leakage Disabled | 1 µA typ, 5 µA max; VS = 5.0 V, VOUT = 0 V to 5.0 V, VENABLE = 0 V |
| Quiescent Current | 48 µA typ, 65 µA max; VS = 1.8 V, VSENSE = 0 mV |
| Quiescent Current Over Temperature | 90 µA max; VS = 1.8 V, VSENSE = 0 mV, TA = -40°C to 125°C |
| Quiescent Current Disabled | 10 nA typ, 100 nA max; VENABLE = 0 V, VSENSE = 0 mV |
| Bidirectional Current Sensing | Supported; SC70 and SOT-23 packages; REF pin available in DCK and DDF packages |
| Unidirectional Current Sensing | DSBGA package only supports current measurement in one direction; devices without REF pin have REF node grounded internally |
| Datasheet Status | request_only |
Product Overview
The Texas Instruments INA186 is a current-sense amplifier in the Signal_Chain category. Recommended operating conditions list a 1.7 V to 5.5 V supply range, GND - 0.2 V to 40 V common-mode and input pin voltage ranges, and -40°C to 125°C operating free-air temperature.
Key Features
- 1.7 V to 5.5 V operating supply range
- GND - 0.2 V to 40 V common-mode range
- Five gain options from 25 V/V to 500 V/V
- 120 dB minimum common-mode rejection ratio
- 0.05 µV/°C typical offset drift RTI
- 27 kHz to 45 kHz bandwidth by device version
- 48 µA typical quiescent current at 1.8 V
- 10 nA typical disabled quiescent current
- SC70 and SOT-23 support bidirectional sensing
- DSBGA package supports unidirectional current measurement
Typical Applications
- Bidirectional current sensing
- Unidirectional DSBGA current measurement
- 40 V common-mode current sensing
- Low-supply current measurement
- Current step response measurement
- REF-referenced output sensing
Procurement Notes
When requesting a quote for INA186, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What supply voltage range does the INA186 support?
The INA186 recommended operating supply voltage range is 1.7 V to 5.5 V. The supply voltage absolute maximum rating is 6 V over the operating free-air temperature range.
Which INA186 packages support bidirectional current sensing?
Bidirectional current sensing is supported in the SC70 and SOT-23 packages. The extracted facts state that the REF pin is available in the DCK and DDF packages.
What gain versions are listed for the INA186?
The listed gain versions are 25 V/V for INA186A1, 50 V/V for INA186A2, 100 V/V for INA186A3, 200 V/V for INA186A4, and 500 V/V for INA186A5 devices.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 12, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.