Skip to main content
Texas Instruments INA185A3IDRLT — Memory (DRAM / SRAM / Flash / EEPROM)
Texas Instruments

INA185A3IDRLT Current Sense Amplifier, 150 kHz, SOT-563

MPNINA185A3IDRLT
End of Life

Texas Instruments INA185A3IDRLT current sense amplifier, single circuit, 150 kHz gain bandwidth, 2 V/µs slew rate, rail-to-rail output, 2.7 V to 5.5 V supply, SOT-563 package, -40°C to 125°C.

$1.93Ref. price · indicative, final on quote
INA185A3IDRLT datasheet
PackagingSOT-563, SOT-666
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

INA185A3IDRLT Technical Specifications
ParameterValue
Output typeRail-to-Rail
Mounting typeSurface Mount
Amplifier typeCurrent Sense
Voltage - input offset25 µV
Voltage - supply span5.5 V
Current - supply200µA
Current - input bias75 µA
Operating temperature-40°C ~ 125°C (TA)
Gain bandwidth product150 kHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate2V/µs
CaseSOT-563, SOT-666
Number of circuits1

Product details

What this current sense amplifier is and where it fits

The Texas Instruments INA185A3IDRLT is a single-channel current sense amplifier in a SOT-563 package, designed to measure current by amplifying the voltage drop across a shunt resistor. It delivers a rail-to-rail output, runs from a 2.7 V to 5.5 V supply, and draws 200 µA quiescent current. The 150 kHz gain-bandwidth product and 2 V/µs slew rate are sized for monitoring DC rail currents with moderate transient response — think motor-drive phase currents, solenoid loads, or power-supply output monitoring in industrial and automotive environments rated from -40°C to 125°C.

Key specs and what they mean for the BOM

The 25 µV input offset voltage sets the floor on measurable shunt drop. The 75 µA input bias current is drawn from the shunt itself.

Frequently asked questions

What is the gain of INA185A3IDRLT?

The INA185A3IDRLT has a fixed gain of 150 kHz gain-bandwidth product; the gain is set internally by the device variant (A3 suffix indicates a specific gain option, typically 100 V/V). Refer to the datasheet for the exact gain value.

Is INA185A3IDRLT available in tape and reel?

Yes, the INA185A3IDRLT is offered in Tape & Reel (TR) and Cut Tape (CT) options, suitable for automated assembly or prototyping.

What is the equivalent or replacement for INA185A3IDRLT?

The INA254A1IPWAR is a functional peer with zero-drift architecture and 350 kHz bandwidth, but it comes in a different package (WSON) and has a higher supply current. For a pin-compatible drop-in, the INA185 family shares the same SOT-563 footprint across gain options.