Quad op-amp at 150 µA per channel — the power budget decision
The TLV4314IPWR: This combination makes it a candidate for multi-channel sensor conditioning, ADC drivers, and active filtering in systems where the total current budget for four amplifiers must stay under 600 µA.
Why the 1 pA input bias current matters for your signal chain
Input bias current is 1 pA, which means the voltage error across high-source-impedance sensors — photodiodes, pH probes, or high-value resistor dividers — stays in the microvolt range. For a 1 MΩ source, 1 pA produces 1 µV of offset error, negligible compared to the 750 µV input offset voltage that dominates the DC accuracy budget.
The 14-TSSOP package supports the 20 mA per channel output at 125°C.