INA180
Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.
What the INA180 family does
The INA180, INA2180, and INA4180 (INAx180) are low- and high-side current-sense amplifiers designed for cost-optimized applications. These devices sense voltage drops across current-sense resistors at common-mode voltages from –0.2 V to +26 V. They operate from a single 2.7-V to 5.5-V supply with a maximum bandwidth of 350 kHz and an offset voltage of ±150 µV at zero common-mode voltage. The family offers four fixed-gain options: 20, 50, 100, or 200 V/V. The INAx180 integrates a matched resistor network to minimize gain error and reduce temperature drift. Engineers typically use these amplifiers for motor control, battery monitoring, power management, lighting control, overcurrent detection, and solar inverter applications. The single-channel INA180 draws a maximum supply current of 260 µA, while the dual-channel INA2180 draws 500 µA, and the quad-channel INA4180 draws 900 µA. All devices are specified over an extended operating temperature range of –40°C to +125°C.
INA180 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 197 µA | 260 µA | VSENSE = 10 mV; iq; POWER SUPPLY | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| output current (abs max) | — | — | 8 mA | 7.1 Absolute Maximum Ratings | TI datasheet, p. 6 — 7.1 Absolute Maximum Ratings |
| supply voltage range | 2.7 V | 5 V | 5.5 V | vs; 7.3 Recommended Operating Conditions | TI datasheet, p. 6 — 7.3 Recommended Operating Conditions |
| input offset voltage drift | — | 200 nV/°C | 1 µV/°C | TA = –40°C to +125°C; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| input offset voltage | — | 100 µV | 500 µV | vos; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| gain bandwidth | — | 350 kHz | — | TI datasheet, p. 1 | |
| cmrr | 84 dB | 100 dB | — | VIN+ = 0 V to 26 V, VSENSE = 10 mV, TA = –40°C to +125°C; cmrr; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| operating temperature | -40 °C | — | 125 °C | ta; 7.3 Recommended Operating Conditions | TI datasheet, p. 6 — 7.3 Recommended Operating Conditions |
| input offset current | — | 50 nA | — | VSENSE = 0 mV; iio; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| input bias current | — | 100 nA | — | VSENSE = 0 mV, VIN+ = 0 V; iib; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| slew rate | — | 2 V/µs | — | FREQUENCY RESPONSE | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| psrr | — | 104 dB | — | TI datasheet, p. 10 | |
| input voltage noise density | — | 40 nV/√Hz | — | NOISE, RTI | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| channel count | — | 1 | — | TI datasheet, p. 4 — 5 Device Comparison Table |
INA180 frequently asked questions
What is the channel count of the INA180?
The channel count is 1.
What is the CMRR of the INA180 when VIN+ = 0 V to 26 V, VSENSE = 10 mV, and TA = –40°C to +125°C?
The CMRR is 100 dB.
What is the gain bandwidth of the INA180?
The gain bandwidth of the INA180 is 350 kHz.
What is the input bias current (iib) for the INA180 when VSENSE = 0 mV and VIN+ = 0 V?
The input bias current is 100 nA.
What is the input offset current (iio) when VSENSE = 0 mV?
The input offset current is 50 nA.
What is the input offset voltage (vos) of the INA180?
The input offset voltage (vos) is 100 µV.
What is the input offset voltage drift for the INA180?
The input offset voltage drift is 200 nV/°C at TA = –40°C to +125°C; INPUT.
What is the input voltage noise density under NOISE, RTI conditions?
The input voltage noise density is 40 nV/√Hz.
What is the maximum operating temperature (ta) according to section 7.3 Recommended Operating Conditions?
The maximum operating temperature (ta) is 125 °C.
What is the absolute maximum output current for the INA180?
The absolute maximum output current is 8 mA.
What is the Power Supply Rejection Ratio (PSRR) of the INA180?
The PSRR of the INA180 is 104 dB.
What is the quiescent current (iq) when VSENSE = 10 mV and the power supply is applied?
The quiescent current is 197 µA.
INA2180 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 197 µA | 260 µA | VSENSE = 10 mV; iq; POWER SUPPLY | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| output current (abs max) | — | — | 8 mA | 7.1 Absolute Maximum Ratings | TI datasheet, p. 6 — 7.1 Absolute Maximum Ratings |
| supply voltage range | 2.7 V | 5 V | 5.5 V | vs; 7.3 Recommended Operating Conditions | TI datasheet, p. 6 — 7.3 Recommended Operating Conditions |
| input offset voltage drift | — | 200 nV/°C | 1 µV/°C | TA = –40°C to +125°C; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| input offset voltage | — | 100 µV | 500 µV | vos; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| gain bandwidth | — | 350 kHz | — | TI datasheet, p. 1 | |
| cmrr | 84 dB | 100 dB | — | VIN+ = 0 V to 26 V, VSENSE = 10 mV, TA = –40°C to +125°C; cmrr; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| operating temperature | -40 °C | — | 125 °C | ta; 7.3 Recommended Operating Conditions | TI datasheet, p. 6 — 7.3 Recommended Operating Conditions |
| input offset current | — | 50 nA | — | VSENSE = 0 mV; iio; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| input bias current | — | 100 nA | — | VSENSE = 0 mV, VIN+ = 0 V; iib; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| slew rate | — | 2 V/µs | — | FREQUENCY RESPONSE | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| psrr | — | 104 dB | — | TI datasheet, p. 10 | |
| input voltage noise density | — | 40 nV/√Hz | — | NOISE, RTI | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| channel count | — | 2 | — | TI datasheet, p. 4 — 5 Device Comparison Table |
INA2180 frequently asked questions
What is the channel count of the INA2180?
The channel count is 2.
What is the Common-Mode Rejection Ratio (CMRR) of the INA2180 when VIN+ = 0 V to 26 V, VSENSE = 10 mV, and TA = –40°C to +125°C?
The CMRR is 100 dB.
What is the gain bandwidth of the INA2180?
The gain bandwidth is 350 kHz.
What is the input bias current (iib) of the INA2180 when VSENSE = 0 mV and VIN+ = 0 V?
The input bias current is 100 nA.
What is the input offset current (iio) when VSENSE = 0 mV?
The input offset current is 50 nA.
What is the input offset voltage (vos; INPUT) for the INA2180?
The input offset voltage (vos; INPUT) is 100 µV.
What is the input offset voltage drift for the INA2180?
The input offset voltage drift is 200 nV/°C at TA = –40°C to +125°C; INPUT.
What is the input voltage noise density of the INA2180 under NOISE, RTI conditions?
The input voltage noise density is 40 nV/√Hz.
What is the maximum operating temperature (ta) according to section 7.3 Recommended Operating Conditions?
The maximum operating temperature (ta) is 125 °C.
What is the absolute maximum output current rating for the INA2180?
The absolute maximum output current is 8 mA.
What is the Power Supply Rejection Ratio (PSRR) of the INA2180?
The PSRR is 104 dB.
What is the quiescent current (iq) when VSENSE = 10 mV?
The quiescent current is 197 µA.
INA4180 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 197 µA | 260 µA | VSENSE = 10 mV; iq; POWER SUPPLY | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| output current (abs max) | — | — | 8 mA | 7.1 Absolute Maximum Ratings | TI datasheet, p. 6 — 7.1 Absolute Maximum Ratings |
| supply voltage range | 2.7 V | 5 V | 5.5 V | vs; 7.3 Recommended Operating Conditions | TI datasheet, p. 6 — 7.3 Recommended Operating Conditions |
| input offset voltage drift | — | 200 nV/°C | 1 µV/°C | TA = –40°C to +125°C; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| input offset voltage | — | 100 µV | 500 µV | vos; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| gain bandwidth | — | 350 kHz | — | TI datasheet, p. 1 | |
| cmrr | 84 dB | 100 dB | — | VIN+ = 0 V to 26 V, VSENSE = 10 mV, TA = –40°C to +125°C; cmrr; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| operating temperature | -40 °C | — | 125 °C | ta; 7.3 Recommended Operating Conditions | TI datasheet, p. 6 — 7.3 Recommended Operating Conditions |
| input offset current | — | 50 nA | — | VSENSE = 0 mV; iio; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| input bias current | — | 100 nA | — | VSENSE = 0 mV, VIN+ = 0 V; iib; INPUT | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| slew rate | — | 2 V/µs | — | FREQUENCY RESPONSE | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| psrr | — | 104 dB | — | TI datasheet, p. 10 | |
| input voltage noise density | — | 40 nV/√Hz | — | NOISE, RTI | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| channel count | — | 4 | — | TI datasheet, p. 4 — 5 Device Comparison Table |
INA4180 frequently asked questions
What is the channel count of the INA4180?
The channel count is 4.
What is the CMRR of the INA4180 when VIN+ = 0 V to 26 V, VSENSE = 10 mV, and TA = –40°C to +125°C?
The CMRR is 100 dB.
What is the gain bandwidth of the INA4180?
The gain bandwidth is 350 kHz.
What is the input bias current (iib) for the INA4180 when VSENSE = 0 mV and VIN+ = 0 V?
The input bias current is 100 nA.
What is the input offset current (iio) when VSENSE = 0 mV?
The input offset current is 50 nA.
What is the input offset voltage (vos) of the INA4180?
The input offset voltage (vos) is 100 µV.
What is the input offset voltage drift of the INA4180 over the temperature range TA = –40°C to +125°C?
The input offset voltage drift is 200 nV/°C.
What is the input voltage noise density of the INA4180 under NOISE, RTI conditions?
The input voltage noise density is 40 nV/√Hz.
What is the maximum operating temperature (ta) according to section 7.3 Recommended Operating Conditions?
The maximum operating temperature (ta) is 125 °C.
What is the absolute maximum output current for the INA4180?
The absolute maximum output current is 8 mA.
What is the Power Supply Rejection Ratio (PSRR) of the INA4180?
The Power Supply Rejection Ratio (PSRR) is 104 dB.
What is the quiescent current (iq) when VSENSE = 10 mV?
The quiescent current is 197 µA at VSENSE = 10 mV.