Quad op amp that sips 57 µA total
The CMOS input stage delivers 0.7 pA input bias current, so high-impedance sources like pH probes or photodiode front-ends see negligible leakage error. Gain bandwidth product sits at 110 kHz with a 0.03 V/µs slew rate, which limits the usable signal bandwidth to low-frequency signals — think DC measurement, temperature monitoring, or strain-gauge amplification, not audio or fast servo loops.
The 110 kHz gain-bandwidth product sets the closed-loop bandwidth at a given gain. At a gain of 100, the usable bandwidth drops to about 1.1 kHz. That is fine for slow analog signals — thermocouple outputs, pressure transducers, bridge amplifiers — but it will roll off a 10 kHz PWM ripple before the ADC sees it. Pair this op amp with a low-bandwidth SAR ADC or a delta-sigma converter running a few hundred samples per second, and the rail budget stays clean.
The 4 V minimum supply means it will not run from a single lithium cell (3.6 V nominal), but it works from a 5 V rail or a 9 V battery. Input offset voltage is 1.1 mV typical — adequate for 8- to 10-bit systems without autozero, but a precision application should budget for the offset error.
Surface-mount only.
For dual-sourcing resilience, a pin-compatible alternative with higher bandwidth is the TLV9362IDDFR (10.6 MHz GBW, 2.6 mA supply, rail-to-rail output), but the supply-current difference is substantial — the TLC27L9ID is the low-power pick, not a performance substitute.