The OPA6x7 are laser-trimmed for low offset voltage and drift, so many circuits do not require external adjustment. The OPA6x7 offer input offset voltage as low as ±125μV and drift as low as ±0.3μV/°C, enabling applications operating over the entire industrial temperature range.

Figure 6-3 shows the optional connection of an external potentiometer to adjust offset voltage. This circuit is applicable to TO-99 packages only. Do not use this adjustment to compensate for offsets created elsewhere in a system, such as in later amplification stages or in an analog-to-digital converter (ADC).

Figure 6-3 Optional Offset Voltage Trim Circuit