ZHCSG25E January 2017 – December 2022 OPA1677 , OPA1678 , OPA1679
PRODUCTION DATA
The noise and distortion performance of the OPA167x family of amplifiers is exceptional in applications with high source impedances, which makes these devices a viable choice in preamplifier circuits for moving magnet (MM) phono cartridges. Figure 8-4 shows a preamplifier circuit for MM cartridges with 40 dB of gain at 1 kHz.