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The tabulated offsets, more particularly their change as a function of source, time and temperature, allow a user to calculate performance of the uncommitted amplifier(s) with user specified input and feedback components. The formula for this is given in the Static Specifications table.

   BOP STATIC SPECIFICATIONS
INFLUENCE QUANTITY OUTPUT EFFECTS (1) PREAMPLIFIER
OFFSETS (4)
REFERENCE
10V
VOLTAGE MODE CURRENT MODE
TYPICAL MAXIMUM TYPICAL MAXIMUM ΔEio ΔIio
Source Voltage (min.-max.) <0.0005% EO max 0.001% EO max <0.002% IO max 0.005% IO max <5μV <1nA <0.0005%
Load (no load-full load) <0.001% EO max (7) 0.002% EO max (7) <0.5mA 1mA <0.0005%
Time (8-hour drift) <0.005% EO max 0.01% EO max <0.01% IO max 0.02% IO max <20μV <1nA <0.005%
Temperature, per C <0.005% EO max 0.01% EO max <0.01% IO max 0.02% IO max <20μV <1nA <0.005%
Ripple and
Noise (2)
rms <1mV 3mV (5) (6) <0.01% IO max 0.03% IO max
p-p (3) <10mV 30mV (5) (6) <0.1% IO max 0.3% IO max

(1) Output effects, expressaed as a percentage, re referred to the minimum rated output voltage or curent,
(2) Measured with the common terminal grounded so that the common mode current does not flow through the load.
(3) Peak-to-peak ripple is measured over a 20Hz to 10MHz bandwidth.
(4) The output effect can be calculated by the relationship:
ΔEO = ΔEr (Rf/Ri) ΔEio (1+Rf/Ri) ΔIio (Rf)
where Rf is the feedback resistor and Ri is the input resistor from the reference Er.
(5) For BOP 200-1M the maximum ripple and noise is 5mV rms and 50mV p-p.
(6) For all BOP models (except BOP 200-1M) with BIT card installed: typical voltage mode ripple/noise = 4mV rms, max noise = 6mV rms and 60mV p-p, For BOP 200-1 models with BIT card installed: typical voltage mode ripple/noise = 4mV rms, max voltage mode ripple/noise = 8mV rms and 80mV p-p.
(6) For BOP 5-20DL, typical voltage mode output effects = 0.004%, maximum voltage mode output effects = 0.008%.

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