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Analog Devices LT1490AIS8#PBF — Discrete Semiconductors
Analog Devices

LT1490AIS8#PBF Dual Rail-to-Rail Op-Amp, 200 kHz, 50 µA

MPNLT1490AIS8#PBF
End of Life

Analog Devices LT® series, LT1490AIS8#PBF, dual general-purpose op-amp, rail-to-rail output, 200 kHz gain bandwidth, 50 µA supply per channel, 2 V to 44 V supply, 8-SOIC package, -40°C to 85°C.

$6.68Ref. price · indicative, final on quote
LT1490AIS8#PBF datasheet
Packaging8-SOIC (0.154", 3.90mm Width)
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

LT1490AIS8#PBF Technical Specifications
ParameterValue
SeriesLT®
Output typeRail-to-Rail
Mounting typeSurface Mount
Amplifier typeGeneral Purpose
Voltage - input offset285 µV
Voltage - supply span44 V
Current - supply50µA (x2 Channels)
Current - input bias1 nA
Current - output (Channel)25 mA
Operating temperature-40°C ~ 85°C
Gain bandwidth product200 kHz
PackageTube
Slew rate0.06V/µs
Case8-SOIC (0.154\", 3.90mm Width)
Number of circuits2

Product details

Supply current and input offset — the design trade-offs

At 50 µA per channel, the LT1490AIS8#PBF is one of the more frugal dual op-amps in an SOIC-8. The input bias current is 1 nA, which is fine for most resistive-sensor bridges but not for high-impedance sources like pH probes — there the 1 nA bias will cause a voltage drop across the source resistance. Input offset voltage is 285 µV, typical for a general-purpose bipolar input stage at this quiescent level. Each output can source or sink 25 mA, enough to drive a small relay or a modest analog front-end.

Lifecycle and sourcing

No end-of-life notice or last-time-buy window is on record.

Frequently asked questions

What is the supply current of LT1490AIS8#PBF?

Each of the two amplifiers draws 50 µA, for a total of 100 µA typical supply current for the dual package.

Is LT1490AIS8#PBF rail-to-rail output?

Yes, the output type is rail-to-rail, allowing the output to swing close to both supply rails.

What are the alternatives to LT1490AIS8#PBF?

The ADA4500-2ARMZ is a dual, rail-to-rail op-amp with a 10 MHz GBW and 0.7 pA input bias, but its supply current is 1.5 mA per channel — thirty times the LT1490's 50 µA. The AD8646ARZ offers 24 MHz and 11 V/µs slew rate at 1.5 mA per channel. Both are faster but draw significantly more current, so the LT1490 remains the choice for ultra-low-power designs.