900 kHz GBW, 0.4 V/µs — signal conditioning workhorse
The ROHM BU7242FVM-TR is a dual CMOS operational amplifier in an 8-MSOP surface-mount package. It delivers a 900 kHz gain-bandwidth product and a 0.4 V/µs slew rate, making it a fit for general-purpose signal conditioning — sensor buffering, active filters below 100 kHz, and low-frequency ADC drivers.
Supply range and input stage — what the 1 pA bias buys you
The CMOS input stage keeps input bias current at 1 pA typical, so you can interface high-impedance sources — photodiodes, pH probes, or high-value resistor dividers — without loading the signal. Input offset voltage is 1 mV typical, which is adequate for 8- to 10-bit accuracy paths but worth budgeting for if you're targeting 12-bit or better.
Output drive and temperature range
Each channel can source or sink 12 mA, enough to drive a reference input, a small relay coil through a transistor, or a 2 kΩ load to the rail. The 8-MSOP package (2.80 mm body width) keeps board area tight for two-channel designs.