usually true with the added noise...but the chip is spec stated at -104.7dBu Un weighted, with the laser trimmed internal resistors! The Distortion + Noise -120dB (22dBu, 22KHz bandwidth). The added external components are not in the signal path, except for the DC blocking Nonpolarized caps on input and output to protect external sources in case of extreme off-set, and one 50-ohm series stability resistor for driving capacitive cables / load. Wide bandwidth @ 2.7MHz, with the internal EMI filtering.
Short circuit protection. Bi-polar supply. The RIAA curve converter all high impedance time constant circuit, so little current = "no" noise contribution. That should be fun to verify!