LT1016_03 Datasheet, PDF (1/20 Pages) Linear Technology – UltraFast Precision 10ns Comparator

FEATURES
■ _UltraFast^TM _{(10ns typ)}
■ _{Operates Off Single 5V Supply or ±5V}
■ _{Complementary Output to TTL}
■ _{Low Offset Voltage}
■ _{No Minimum Input Slew Rate Requirement}
■ _{No Power Supply Current Spiking}
■ _{Output Latch Capability}
U
APPLICATIO S
■ _{High Speed A/D Converters}
■ _{High Speed Sampling Circuits}
■ _{Line Receivers}
■ _{Extended Range V-to-F Converters}
■ _{Fast Pulse Height/Width Discriminators}
■ _{Zero-Crossing Detectors}
■ _{Current Sense for Switching Regulators}
■ _{High Speed Triggers}
■ _{Crystal Oscillators}
, LTC and LT are registered trademarks of Linear Technology Corporation.
UltraFast is a trademark of Linear Technology Corporation.
TYPICAL APPLICATION
10MHz to 25MHz Crystal Oscillator
5V
22Ω
820pF
10MHz TO 25MHz
2k
(AT CUT)
5V
+
V⁺
Q
LT1016
2k
–
Q
OUTPUT
GND
LATCH
V^–
200pF
2k
1016 TA1a
LT1016
UltraFast Precision
10ns Comparator
DESCRIPTIO
The LT^®1016 is an UltraFast 10ns comparator that inter-
faces directly to TTL/CMOS logic while operating off either
±5V or single 5V supplies. Tight offset voltage specifica-
tions and high gain allow the LT1016 to be used in
precision applications. Matched complementary outputs
further extend the versatility of this comparator.
A unique output stage provides active drive in both direc-
tions for maximum speed into TTL/CMOS logic or passive
loads, yet does not exhibit the large current spikes found
in conventional output stages. This allows the LT1016 to
remain stable with the outputs in the active region which,
greatly reduces the problem of output “glitching” when the
input signal is slow moving or is low level.
The LT1016 has a LATCH pin which will retain input data
at the outputs, when held high. Quiescent negative power
supply current is only 3mA. This allows the negative
supply pin to be driven from virtually any supply voltage
with a simple resistive divider. Device performance is not
affected by variations in negative supply voltage.
Linear Technology offers a wide range of comparators in
addition to the LT1016 that address different applications.
See the Related Parts section on the back page of the data
sheet.
Response Time
V_IN
100mV STEP
5mV OVERDRIVE
THRESHOLD
THRESHOLD
V_OUT
1V/DIV
0
20
0
20
TIME (ns)
1016 TA2b
1