LT1016
UltraFast Precision
10ns Comparator
Features
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Description
UltraFast™ (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
Applications
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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
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
UltraFast is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners.
The LT®1016 is an UltraFast 10ns comparator that interfaces
directly to TTL/CMOS logic while operating off either ±5V
or single 5V supplies. Tight offset voltage specifications
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 directions 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.
Typical Application
Response Time
10MHz to 25MHz Crystal Oscillator
5V
22Ω
THRESHOLD
VIN
100mV STEP
5mV OVERDRIVE
10MHz TO 25MHz
(AT CUT)
2k
THRESHOLD
5V
820pF
V+
+
2k
Q
LT1016
–
Q
V–
200pF
OUTPUT
GND
LATCH
2k
VOUT
1V/DIV
0
1016 TA1a
0
20
TIME (ns)
20
1016 TA2b
1016fc
1
