475 nA supply — the so-what for the BOM
At 475 nA typical supply current, this part draws roughly one-tenth the current of a standard micropower op-amp like the TLV9351IDCKR (600 µA). That difference — three orders of magnitude — is the entire reason to pick this part over a faster, wider-bandwidth alternative. The trade-off is a 6.2 kHz gain-bandwidth product and a 0.0027 V/µs slew rate, which limits the usable signal bandwidth to DC and low-frequency sensing (temperature, pressure, strain gauge, electrochemical cell). If your design needs to condition a 1 kHz ripple or a fast pulse, this is the wrong amplifier; if it needs to run for years on a coin cell, this is the one.
Package and footprint note
Supplied in SC-70-5 (also known as SOT-353), a 5-pin surface-mount package. The pinout is standard for single op-amps in this footprint — offset null pins are absent, so no external trim network required. Mounting is surface mount only; no through-hole variant exists.
The LPV521MG/NOPB is RoHS3 compliant (lead-free).