Re: OPA828 DATASHEET (SBOS671B-September 2018 - Revised December 2018
The datasheet shows the device as RRO (Rail to Rail Output). The electrical characteristics table (page 7) shows the output voltage swing for RL=10k as 0.9V typ 1.2V max.
The output swing for RL = 600 ohms is given as 1.2V typ. The supply voltage is shown as +/- 15V. Obviously, since these numbers are very small compared to the
actual supply rail voltages, I interpret these to mean that the output will typically swing to within 0.9V of the rail for RL=10k, or 1.2V of the rail voltage for RL = 600 ohm.
The problem is, this disagrees with datasheet figures 16 and 17 (page 11). These figures indicate that even for 0 ma load, the output will only swing between +/- 13V with
+/- 15V rail voltages. This is 2.0 volts from the rail and certainly not RRO, and this disagrees with the electrical characteristics table output swing values.
Is this an error, or am I interpreting something wrong?