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INA181A3QDBVRQ1 +BOM

AEC-Q100, 26V, bi-directional, 350kHz current sense amplifier

Produttore:

Texas Instruments, Inc
ProduttorePart #:

INA181A3QDBVRQ1
Scheda dati:

INA181A3QDBVRQ1 Scheda dati (PDF)
Series:

Automotive, AEC-Q100
Amplifier Type:

Current Sense
Number Of Circuits:

1
Output Type:

Rail-to-Rail
EDA/CAD Modelli:

Richiedi modelli CAD gratuiti per INA181A3QDBVRQ1

INA181A3QDBVRQ1 Descrizione generale

The INA181-Q1, INA2181-Q1, and INA4181-Q1 (INAx181-Q1) current sense amplifiers are designed for cost-optimized applications. These devices are part of a family of bidirectional, current-sense amplifiers (also called current-shunt monitors) that sense voltage drops across current-sense resistors at common-mode voltages from –0.2 V to +26 V, independent of the supply voltage. The INAx181-Q1 family integrates a matched resistor gain network in four, fixed-gain device options: 20 V/V, 50 V/V, 100 V/V, or 200 V/V. This matched gain resistor network minimizes gain error and reduces the temperature drift.

These devices operate from a single 2.7-V to 5.5-V power supply. The single-channel INA181-Q1 draws a maximum supply current of 260 µA; whereas, the dual-channel INA2181-Q1 draws a maximum supply current of 500 µA, and the quad-channel INA4181-Q1 draws a maximum supply current of 900 µA.

The INA181-Q1 is available in a 6-pin, SOT-23 package. The INA2181-Q1 is available in a 10-pin, VSSOP package. The INA4181-Q1 is available in a 20-pin, TSSOP package. All device options are specified over the extended operating temperature range of –40°C to +125°C.

Caratteristiche principali

AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C ≤ T_A ≤ +125°C
- HBM ESD classification level 2
- CDM ESD classification level C6
Functional Safety-Capable
- Documentation available to aid functional safety system design
Common-mode range (V_CM): –0.2 V to +26 V
High bandwidth: 350 kHz (A1 devices)
Offset voltage:
- ±150 µV (maximum) at V_CM = 0 V
- ±500 µV (maximum) at V_CM = 12 V
Output slew rate: 2 V/µs
Bidirectional current-sensing capability
Accuracy:
- ±1% gain error (maximum)
- 1-µV/°C offset drift (maximum)
Gain options:
- 20 V/V (A1 devices)
- 50 V/V (A2 devices)
- 100 V/V (A3 devices)
- 200 V/V (A4 devices)
Quiescent current: 260 µA maximum (INA181-Q1)

Specifiche

Category	Integrated Circuits (ICs)LinearAmplifiersInstrumentation, OP Amps, Buffer Amps	Series	Automotive, AEC-Q100
Amplifier Type	Current Sense	Number of Circuits	1
Output Type	Rail-to-Rail	Slew Rate	2V/µs
Gain Bandwidth Product	150 kHz	Current - Input Bias	75 µA
Voltage - Input Offset	100 µV	Current - Supply	195µA
Current - Output / Channel	8 mA	Voltage - Supply Span (Min)	2.7 V
Voltage - Supply Span (Max)	5.5 V	Operating Temperature	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount	Base Product Number	INA181

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