Its a sellers sheet from a IC maker swearing their product performs to those specs in a given test circuit as described in the reference to test circuit 1.
It claims that the device will have those spec'ed performance parameters under a given set of known variables as stated in the spec sheet.
It appears to be a voltage reference that operates at 1/2 of the B+ rail feeding the circuit. And those spec numbers are from the dream sheet of the chip maker as absolute Min, Typical, Max figures to expect in the production run of the device.
Engineering Greek Speak to normal folks, But RolandK has the knack
It's a Operational Amplifier with EVR as per its pdf file. < no second guessing here RolandK I keep a terminal at my bench to research such things daily
I think I might like working for you

You like to keep things interesting
