10 MHz GBW, 10V/µs slew rate — signal-chain parametric note
The MAX4491AKA+T: These two numbers define the usable signal bandwidth: the GBW sets the small-signal closed-loop bandwidth for a given gain, while the slew rate limits the large-signal edge rate. For a gain of 10, the -3 dB bandwidth is roughly 1 MHz; a 5 V output step slews at about 0.5 µs. Each channel draws 800 µA supply current, which is moderate for this speed class — a trade-off between quiescent power and bandwidth.
Industrial temperature range and SOT-23-8 footprint
The SOT-23-8 package (Supplier Device Package SOT-23-8) occupies minimal board area — about 2.9 mm × 1.6 mm — making it suitable for dense mixed-signal layouts where channel count per area matters. Input bias current is 50 pA typical, which keeps DC errors low when interfacing with high-impedance sources such as photodiodes or pH probes. The push-pull output stage maintains low output impedance across the rail-to-rail swing.