LT1116_06 Datasheet, PDF (3/8 Pages) Linear Technology – 12ns, Single Supply Ground-Sensing Comparator

LT1116
ELECTRICAL CHARACTERISTICS _{The ● denotes the specifications which apply over full operating temperature}
range, otherwise specifications are at T_A = 25°C. V⁺ = 5V, V ⁺ = –5V, V_OUT = (Q) = I .4V, LATCH = 0V, unless noted.
SYMBOL PARAMETERS
CONDITIONS
MIN TYP
MAX
UNITS
V_IH
+ Positive Latch Threshold
●
2.0
V
V_IL
– Latch Threshold
●
0.8
V
I_IL
Latch Input Current
V_LATCH = 0V
●
–20
–500
µA
t_PD
Propagation Delay
∆V_IN = 100mV, OD = 5mV (Note 4)
12
16
ns
●
18
ns
t_PD
Propagation Delay
∆V_IN = 100mV, OD = 20mV (Note 4)
10
14
ns
●
16
ns
∆t_PD
Differential Propagation Delay
∆V_IN = 100mV, OD = 5mV (Note 4)
t_SU
Latch Set-Up Time
(Note 5)
t_H
Latch Hold Time
(Note 5)
3
ns
2
ns
2
ns
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliabilty and lifetime.
Note 2: Input offset voltage is defined as the average of two offset
voltages measured by forcing first the Q output to 1.4V then forcing
the Q output to 1.4V.
Note 3: Input bias current is defined as the average of the two input
currents.
Note 4: t_PD and ∆t_PD cannot be measured in automatic handling
equipment with low values of overdrive. The LT1116 is sample tested with
a 1V step and 500mV overdrive. Correlation tests have shown that t_PD and
∆t_PD can be guaranteed with this test if additional DC tests are performed
to verify internal bias conditions are correct. For low overdrive conditions
V_OS is added to the measured overdrive.
Note 5: Input latch set-up time, t_SU, is the interval in which the input signal
must be stable prior to asserting the latch signal. The hold time,
t_H, is the interval after the latch is asserted in which the input signal must
be stable.
TYPICAL PERFOR A CE CHARACTERISTICS
Gain CharacteristIcs
5.0
4.5
T_J = 125°C
4.0
V_S = ±5V
I_OUT = 0
3.5
3.0
2.5
T_J = –55°C
T_J = 25°C
2.0
1.5
1.0
0.5
0
–2.5 –1.5 – 0.5 0 0.5 1.5 2.5
DIFFERENTIAL INPUT VOLTAGE (mV)
LT1116 • TPC01
Propagation Delay vs Overdrive
25
T_J = 25°C
STEP SIZE = 100mV
20
15
t_PDLH
10
t_PDHL
5
0
0
10
20
30
40
50
OVERDRIVE VOLTAGE (mV)
LT1116 • TPC02
Propagation Delay
vs Load Capacitance
20
STEP = 100mV, OVERDRIVE = 5mV
18
16
t_PDHL
14
12
t_PDLH
10
8
6
4
2
0
0
10
20
30
40
50
OUTPUT LOAD CAPACITANCE (pF)
LT1116 • TPC03
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3