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TI INA281A2QDBVRQ1RoHS

Manufacturer
TI
MPN
INA281A2QDBVRQ1
LCSC Part #
C2908677
Packaging
SOT-23-5
Customer #
Key Attributes
1 55uV -4V~110V 2.5V/us 1.3MHz 120dB 20uA 1.5mA 50V/V SOT-23-5 Instrumentation, Op Amps, Buffer Amps RoHS
Datasheetpdf iconTI INA281A2QDBVRQ1
In-Stock: 2,822
2,822 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 1.8951$ 1.90
10+$ 1.6005$ 16.01
30+$ 1.4165$ 42.50
100+$ 1.2276$ 122.76
500+$ 1.143$ 571.50
1,000+$ 1.1055$ 1105.50
Standard Packaging3000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Linear/Amplifiers/Instrumentation, Op Amps, Buffer Amps
ManufacturerTI
PackagingSOT-23-5
Number of Channels1
Vos - Input Offset Voltage55uV
Vcm - Common Mode Voltage-4V~110V
Slew Rate2.5V/us
Input Offset Current(Ios)-
Bandwidth1.3MHz
FeaturesHigh-side detection;Low-side detection;Zero drift / auto-zero
Operating Temperature-40℃~+125℃
Common Mode Rejection Ratio(CMRR)120dB
Ib - Input Bias Current20uA
Output Current-
Noise density(eN)50nV/√Hz
Input Offset Voltage Drift(Vos TC)1uV/℃
Quiescent Current1.5mA
Gain50V/V
Differential Voltage±12V
Dual Supply-
Single Supply2.7V~20V
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

The INA281-Q1 is a high-precision current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from -4 V to 110 V. The negative common-mode voltage allows the device to operate below ground, thus accommodating precise measurement of recirculating currents in half-bridge applications. The combination of a low offset voltage, small gain error and high DC CMRR enables highly accurate current measurement. The INA281-Q1 is not only designed for DC current measurement, but also for high-speed applications (like fast overcurrent protection, for example) with a high bandwidth of 1.3 MHz and an 65-dB AC CMRR (at 50 kHz). The INA281-Q1 operates from a single 2.7-V to 20-V supply, drawing 1.5 mA of supply current. The INA281-Q1 is available with five gain options: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. These gain options address wide dynamic range for current-sensing applications. The INA281-Q1 is specified over an operating temperature range of -40 ℃ to +125 ℃ and is offered in a space-saving SOT-23 package with two pin-out variants.

Features

AI Translation
  • AEC-Q100 qualified for automotive applications – Temperature grade 1: -40 ℃ to +125 ℃, TA
  • Functional Safety-Capable Documentation available to aid functional safety system design
  • Wide common-mode voltage:
    • Operational voltage: -4 V to +110 V
    • Survival voltage: -20 V to +120 V
  • Excellent CMRR: 120-dB DC CMRR, 65-dB AC CMRR at 50 kHz
  • Accuracy:
    • Gain:
      • Gain error: ±0.5% (maximum)
      • Gain drift: ±20 ppm/℃ (maximum)
    • Offset:
      • Offset voltage: ±55 μV (typical)
      • Offset drift: ±0.1 μV/℃ (typical)
  • Available gains: 20 V/V, 50 V/V, 100 V/V, 200 V/V, 500 V/V
  • High bandwidth: 1.3 MHz
    • Slew rate: 2.5 V/µs
  • Quiescent current: 1.5 mA

Applications

AI Translation
  • Automatic transmission
  • Automotive HVAC compressor module
  • Valve/motor actuator
  • Gasoline & diesel engine platform
  • Pump