INA181A2IDBV
Texas InstrumentsExtended
-200mV~26V -40℃~+125℃ 1 100dB 195uA 1uV/℃ 2.7V~5.5V 210kHz 25uV 2V/us 40nV/√Hz@1kHz 50V/V 6uA 8mA Bidirectional detection、Programmable output reference level、Analog output interface ±26V SOT-23-6 Current Sense Amplifiers ROHS
- Part id
- ti/INA181A2IDBV
- Category
- Current Sense Amplifiers
- Package
- SOT-23-6
- Pins
- 6
- In stock
- 53,744 at JLCPCB (C2058784)
Overview
The INA181A2IDBV is a current Sense Amplifier made by Texas Instruments in a SOT-23-6 package with 6 pins. -200mV~26V -40℃~+125℃ 1 100dB 195uA 1uV/℃ 2.7V~5.5V 210kHz 25uV 2V/us 40nV/√Hz@1kHz 50V/V 6uA 8mA Bidirectional detection、Programmable output reference level、Analog output interface ±26V SOT-23-6 Current Sense Amplifiers ROHS.
PCBKit's library has its KiCad symbol (Amplifier_Current:INA181, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23-6, from KiCad's library), ready for a KiCad board. 53,744 are in stock at JLCPCB (part C2058784).
Symbol
Footprint
From the datasheet
12- Supply, least
- 2.7 V · VS, recommended operating min · p. 7
- Supply, most
- 5.5 V · VS, recommended operating max · p. 7
- Supply, absolute maximum
- 6 V · VS, absolute max · p. 7
- Works from
- -40 °C · Operating free-air temperature min · p. 7
- Works up to
- 125 °C · Operating free-air temperature max · p. 7
- Junction, hottest
- 150 °C · Junction temperature absolute max · p. 7
- Takes working
- 195 µA · VS, typical quiescent current, VSENSE = 0 mV, 25°C · p. 8
- Takes at most
- 300 µA · VS, max quiescent current, VSENSE = 0 mV, –40°C to +125°C · p. 8
- A pin gives at most
- 8 mA · OUT, absolute max output current · p. 7
- Junction to air (DBV (SOT-23))
- 198.7 K/W · Junction-to-ambient thermal resistance · p. 7
- Junction to case (DBV (SOT-23))
- 120.9 K/W · Junction-to-case top thermal resistance · p. 7
- Junction to board (DBV (SOT-23))
- 52.3 K/W · Junction-to-board thermal resistance · p. 7
What it is and has
5- Common-mode range
- –0.2 V to +26 V · p. 1
- Current sensing
- Bidirectional · p. 1
- Gain
- 50 V/V · p. 1
- Gain error
- ±1% maximum · p. 1
- Offset drift
- 1 µV/°C maximum · p. 1
Specifications
35| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Supply voltage VS | Over operating free-air temperature range | max 6 V | 7 |
| Analog inputs, IN+, IN– | Differential (VIN+) – (VIN–) | min -26 · max 26 V | 7 |
| Analog inputs, IN+, IN– | Common-mode; minimum GND – 0.3 V | max 26 V | 7 |
| Maximum output current IOUT | max 8 mA | 7 | |
| Operating fee-air temperature TA | min -55 · max 150 °C | 7 | |
| Junction temperature TJ | max 150 °C | 7 | |
| Storage temperature Tstg | min -65 · max 150 °C | 7 | |
| Electrostatic discharge V(ESD) | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001; ±3000 V | max 3000 V | 7 |
| Electrostatic discharge V(ESD) | Charged-device model (CDM), per JEDEC specification JESD22-C101; ±1000 V | max 1000 V | 7 |
| Common-mode input voltage (IN+ and IN–) VCM | Over operating free-air temperature range; nominal 12 V | min -0.2 · typ 12 · max 26 V | 7 |
| Operating supply voltage VS | Over operating free-air temperature range; nominal 5 V | min 2.7 · typ 5 · max 5.5 V | 7 |
| Operating free-air temperature TA | min -40 · max 125 °C | 7 | |
| Junction-to-ambient thermal resistance RθJA | INA181, DBV (SOT-23), 6 PINS | typ 198.7 °C/W | 7 |
| Junction-to-case (top) thermal resistance RθJC(top) | INA181, DBV (SOT-23), 6 PINS | typ 120.9 °C/W | 7 |
| Junction-to-board thermal resistance RθJB | INA181, DBV (SOT-23), 6 PINS | typ 52.3 °C/W | 7 |
| Junction-to-top characterization parameter ψJT | INA181, DBV (SOT-23), 6 PINS | typ 30.3 °C/W | 7 |
| Junction-to-board characterization parameter ψJB | INA181, DBV (SOT-23), 6 PINS | typ 52 °C/W | 7 |
| Common-mode rejection ratio, RTI CMRR | VIN+ = 0 V to 26 V, VSENSE = 0 mV, TA = –40°C to +125°C | min 84 · typ 100 dB | 8 |
| Offset voltage, RTI VOS | VSENSE = 0 mV, VIN+ = 0 V; values ± | typ 25 · max 150 uV | 8 |
| Offset voltage, RTI VOS | VSENSE = 0 mV; values ± | typ 100 · max 500 uV | 8 |
| Offset drift, RTI dVOS/dT | VSENSE = 0 mV, TA = –40°C to +125°C | typ 0.2 · max 1 uV/°C | 8 |
| RTI vs power supply ratio PSRR | VS = 2.7 V to 5.5 V, VIN+ = 12 V, VSENSE = 0 mV; values ± | typ 8 · max 40 uV/V | 8 |
| Input bias current IIB | VSENSE = 0 mV, VIN+ = 0 V | typ -6 uA | 8 |
| Input bias current IIB | VSENSE = 0 mV | typ 75 uA | 8 |
| Input offset current IIO | VSENSE = 0 mV; value ± | typ 0.05 uA | 8 |
| Gain G | A2 devices | typ 50 V/V | 8 |
| Gain error EG | VOUT = 0.5 V to VS – 0.5 V, TA = –40°C to +125°C; values ± | typ 0.1 · max 1 % | 8 |
| Gain error vs temperature | TA = –40°C to +125°C | typ 1.5 · max 20 ppm/°C | 8 |
| Nonlinearity error | VOUT = 0.5 V to VS – 0.5 V; value ± | typ 0.01 % | 8 |
| Maximum capacitive load | No sustained oscillation | typ 1 nF | 8 |
| Bandwidth BW | A2 devices, CLOAD = 10 pF | typ 210 kHz | 8 |
| Slew rate SR | typ 2 V/us | 8 | |
| Voltage noise density | RTI | typ 40 nV/√Hz | 8 |
| Quiescent current IQ | INA181, VSENSE = 0 mV | typ 195 · max 260 uA | 8 |
| Quiescent current IQ | INA181, VSENSE = 0 mV, TA = –40°C to +125°C | max 300 uA | 8 |
Pins, by the datasheet
6- 1 OUT
- Output voltage. · p. 4
- 2 GND
- Ground. · p. 4
- 3 IN+
- Positive input; connect to bus-voltage side of sense resistor for high-side sensing, or load side for low-side sensing. · p. 4
- 4 IN–
- Negative input; connect to load side of sense resistor for high-side sensing, or ground side for low-side sensing. · p. 4
- 5 REF
- Reference input. · p. 4
- 6 VS
- Power supply, 2.7 V to 5.5 V. · p. 4
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Questions
Is there a KiCad symbol and footprint for the INA181A2IDBV?
Yes. The symbol is Amplifier_Current:INA181 and the footprint Package_TO_SOT_SMD:SOT-23-6, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the INA181A2IDBV?
SOT-23-6, with 6 pins. Its footprint is drawn on this page.
Where is the INA181A2IDBV datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the INA181A2IDBV?
JLCPCB lists it as part C2058784, with 53,744 in stock; the sellers' links on this page open their listings.
What can replace the INA181A2IDBV?
Parts like it in the library: the AP4313KTR-G1 by Diodes Incorporated, the INA181A1IDBVR(XBLW) by XBLW, the INA181A1IDBV by Texas Instruments and the RS181CXH by Jiangsu RUNIC Tech. Check their datasheets: a part that fits the footprint may still differ in its ratings.