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TI INA149AIDRRoHS

Manufacturer
TI
MPN
INA149AIDR
LCSC Part #
C183089
Packaging
SOIC-8
Customer #
Key Attributes
High Common-Mode Voltage Difference Amplifier
Datasheetpdf iconTI INA149AIDR
In-Stock: 7,196
7,196 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 1.9974$ 2.00
10+$ 1.6819$ 16.82
30+$ 1.4851$ 44.55
100+$ 1.2817$ 128.17
500+$ 1.1907$ 595.35
1,000+$ 1.1516$ 1151.60
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Linear/Amplifiers/Instrumentation, Op Amps, Buffer Amps
ManufacturerTI
PackagingSOIC-8
Settling time7us
Number of Channels1
Vos - Input Offset Voltage350uV
Slew Rate5V/us
FeaturesIntegrated precision resistor network;Capacitive load driving;Built-in signal filtering
Operating Temperature-40℃~+125℃
Common Mode Rejection Ratio(CMRR)90dB
Ib - Input Bias Current-
Output Current25mA
Noise density(eN)550nV/√Hz@10kHz
Maximum Power Supply Range (Vdd-Vss)36V
Input Offset Voltage Drift(Vos TC)3uV/℃
Quiescent Current900uA
Gain Bandwidth Product500kHz
Dual Supply-18V~-2V;2V~18V
Rail to RailRail-to-rail output
Single Supply5V
Power Supply Rejection Ratio (PSRR)120dB
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The INA149 is a precision unity-gain difference amplifier with a very high input common-mode voltage range. It is a single, monolithic device that consists of a precision op amp and an integrated thinfilm resistor network. The INA149 can accurately measure small differential voltages in the presence of common-mode signals up to ±275 V. The INA149 inputs are protected from momentary common-mode or differential overloads of up to 500 V.

In many applications, where galvanic isolation in not required, the INA149 can replace isolation amplifiers. This ability can eliminate costly isolated input side power supplies and the associated ripple, noise, and quiescent current. The excellent 0.0005% nonlinearity and 500-kHz bandwidth of the INA149 are superior to those of conventional isolation amplifiers.

The INA149 is pin-compatible with the INA117 and INA148 type high common-mode voltage amplifiers and offers improved performance over both devices. The INA149 is available in the SOIC-8 package with operation specified over the extended industrial temperature range of -40°C to +125°C.

Features

AI Translation
  • Common-Mode Voltage Range: ±275 V
  • Minimum CMRR: 90 dB from -40°C to ±125°C
  • DC Specifications: Maximum Offset Voltage: 1100 μV, Maximum Offset Voltage Drift: 15 μV/°C, Maximum Gain Error: 0.02%, Maximum Gain Error Drift: 10 ppm/°C, Maximum Gain Nonlinearity: 0.001% FSR
  • AC Performance:
    • Bandwidth: 500 kHz
    • Typical Slew Rate: 5 V/μs
  • Wide Supply Range: ±2.0 V to ±18 V, Maximum Quiescent Current: 900 μA
    • Output Swing on ±15-V Supplies: ±13.5 V
  • Input Protection:
    • Common-Mode: ±500 V, Differential: ±500 V

Applications

AI Translation
  • High-Voltage Current Sensing
  • Battery Cell Voltage Monitoring
  • Power-Supply Current Monitoring
  • Motor Controls
  • Replacement for Isolation Circuits