Dual op-amp for general-purpose signal chains
The Maxim Integrated MAX4252EUA+T is a dual-channel, general-purpose operational amplifier in an 8-uMAX/uSOP surface-mount package. Input offset voltage is 70 µV typical, and the CMOS input stage draws 0.1 pA bias current. Supply range spans 2.4 V to 5.5 V. Each amplifier consumes 420 µA supply current.
Rail-to-rail output and low offset for precision conditioning
The rail-to-rail output stage (push-pull, no dead zone) lets the amplifier swing within a few tens of millivolts of either supply rail, preserving dynamic range in low-voltage systems. Combined with the 70 µV input offset and 0.1 pA bias, the part handles precision DC amplification — weigh-scale bridges, thermocouple amplifiers, and current-sense front-ends — without external trimming. The 68 mA output current per channel can drive moderate loads like ADC inputs or small relays directly.
The 2.4 V minimum supply allows operation from a single Li-ion cell through its discharge curve; the 5.5 V maximum covers 5 V ±10% rails. The 8-uMAX package (3 mm × 3 mm body) saves board area in multi-channel designs.
For those applications, a higher-slew-rate part (e.g., 10 V/µs or more) would be needed.