Tektronix PS 503A, Instruction Manual

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Specification and Performance Check—PS 503A
+5 V Ground Reference Supply
Table 2-1 (cont)
Characteristics
Performance Requirements Supplemental Information
Load
Regulation
Within 3 mV with a 1 A load change. Within 1 mV with a 400 mA load
change.
Transient Recover
≤20 µs for a constant voltage to
recover within 20 mV for a
nominal output voltage after a
400 mA change in output current.
Line Regulation Within 5 mV for a ±10% line
voltage change.
Ripple and Noise
(2 Hz to 2 MHz instrument
not in current limiting.)
3 mV peak-to-peak or less with a
1 A load.
1 mV peak-to-peak or less with
a 400 mA load (noise and
ripple increase unpredictably
when current is being limited).
Temperature Coefficent 0.025%/° C or less.
Stability 0.1% +5 mV (or less) of drift in 8
hours. Line voltage, load and tem­
perature held constant.
Supply Isolation from
Ground
350 V (dc + peak ac).
Dual Tracking Mode
Offset Error
If the two supplies are set indepen­
dently to any given voltage ratio, and
if both supplies are then monitored
and varied a given amount (by using
the VOLTS DUAL TRACKING control),
the two supplies will maintain the
same voltage ratio as initially set
within 50 mV; until one supply reaches
either 0 v' or 20 V.
Output
4.75 V dc to 5.25 V dc with a 5 ohm
load.
Measured at a temperature be­
tween +20° C and +30° C.
Load Regulation Within 100 mV with a 1 A load change.
Line Regulation Within 50 mV for a ±10% line volt­
age change.
Measured at a temperature be­
tween +20° C and +30° C.
Ripple and Noise
(2
Hz to 2 MHz)
5 mV peak-to-peak or less with a 1 A
load.
Long Term Stability
0.5% or less of drift.
Overload Protection Fixed (automatic) current limiting
and over-temperature shutdown.
2-2
REV. A, AUG. 1977
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