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Definitions of terms – Rainbow Electronics MAX903 User Manual

Page 9

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MAX900–MAX903

High-Speed, Low-Power Voltage Comparators

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9

Definitions of Terms

V

OS

Input Offset Voltage: Voltage applied
between the two input terminals to obtain
TTL-logic threshold (+1.4V) at the
output.

t

pd+ (D)

Latch Disable-to-Output High Delay:
The propagation delay measured from
the latch-signal crossing the TTL
threshold in a low-to-high transition to
the point of the output crossing TTL
threshold in a low-to-high transition.

V

IN

Input Voltage Pulse Amplitude: Usually
set to 100mV for comparator
specifications.

t

pd- (D)

Latch Disable-to-Output Low Delay:
The propagation delay measured from
the latch-signal crossing the TTL
threshold in a low-to-high transition to
the point of the output crossing TTL
threshold in a high-to-low transition.

V

OD

Input Voltage Overdrive: Usually set to
5mV and in opposite polarity to V

IN

for

comparator specifications.

ts

Minimum Setup Time: The minimum
time before the negative transition of the
latch signal that an input signal change
must be present in order to be acquired
and held at the outputs.

t

pd+

Input-to-Output High Delay: The
propagation delay measured from the
time the input signal crosses the input
offset voltage to the TTL-logic threshold
of an output low-to-high transition

th

Minimum Hold Time: The minimum time
after the negative transition of the latch
signal that an input signal must remain
unchanged in order to be acquired and
held at the output.

t

pd-

Input-to-Output Low Delay: The
propagation delay measured from the
time the input signal crosses the input
offset voltage to the TTL-logic threshold
of an output high-to-low transition.

tpw (D)

Minimum Latch-Disable Pulse Width:
The minimum time that the latch signal
must remain high in order to acquire and
hold an input-signal change.