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.
| Parameter | Value |
|---|---|
| Series | LT® |
| Output type | Rail-to-Rail |
| Mounting | Surface Mount |
| Amplifier type | General Purpose |
| Voltage - input offset | 285 µV |
| Voltage - supply span | 44 V |
| Current - supply | 50µA (x2 Channels) |
| Current - input bias | 1 nA |
| Current - output (Channel) | 25 mA |
| Operating temperature | -40°C ~ 85°C |
| Gain bandwidth product | 200 kHz |
| Package | Tube |
| Slew rate | 0.06V/µs |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Number of circuits | 2 |
At 50 µA per channel, the LT1490AIS8#PBF is one of the more frugal dual op-amps in an SOIC-8. Input offset voltage is 285 µV, typical for a general-purpose bipolar input stage at this quiescent level.
Each of the two amplifiers draws 50 µA, for a total of 100 µA typical supply current for the dual package.
Yes, the output type is rail-to-rail, allowing the output to swing close to both supply rails.
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.