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LT1719IS6#TRMPBF

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LT1719
1
1719fa
TYPICAL APPLICATION
FEATURES DESCRIPTION
APPLICATIONS
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. UltraFast is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
OVERDRIVE (mV)
0
DELAY (ns)
30
50
1719 TA02
10 20 40
8
7
6
5
4
3
2
1
0
25°C
V
STEP
= 100mV
V
+
= 5V
C
LOAD
= 10pF
RISING EDGE
(t
PDLH
)
FALLING EDGE
(t
PDHL
)
n
UltraFast: 4.5ns at 20mV Overdrive
7ns at 5mV Overdrive
n
Low Power: 4.2mA at 3V
n
Separate Input and Output Power Supplies
(SO-8 Only)
n
Output Optimized for 3V and 5V Supplies
n
TTL/CMOS Compatible Rail-to-Rail Output
n
Low Power Shutdown Mode: 0.1μA
n
Low Profi le (1mm) SOT-23 (ThinSOT™) Package
The LT
®
1719 is an UltraFast™ comparator optimized for low
voltage operation. The input voltage range extends from
100mV below V
EE
to 1.2V below V
CC
. Internal hysteresis
makes the LT1719 easy to use even with slow moving input
signals. The rail-to-rail outputs directly interface to TTL
and CMOS. Alternatively the symmetric output drive can be
harnessed for analog applications or for easy translation to
other single supply logic levels. A shutdown control allows
for reduced power consumption and extended battery life
in portable applications.
The LT1719 is available in the SO-8 and 6-lead SOT-23
package. The SO-8 package has separate supplies which
allow fl exible operation, accomodating separate analog
input ranges and output logic levels.
For a dual/quad comparator with similar performance, see
the LT1720/LT1721.
n
High Speed Differential Line Receiver
n
Crystal Oscillator Circuits
n
Level Translators
n
Threshold Detectors/Discriminators
n
Zero-Crossing Detectors
n
High Speed Sampling Circuits
n
Delay Lines
2.7V to 6V Crystal Oscillator with TTL/CMOS Output
Propagation Delay vs Overdrive
–
+
C1
LT1719
2.7V TO 6V
2k
620Ω
220Ω
1MHz TO 10MHz
CRYSTAL (AT-CUT)
2k
1719 TA01
0.1μF 1.8k
OUTPUT
GROUND
CASE
4.5ns Single/Dual Supply
3V/5V Comparator with
Rail-to-Rail Output
LT1719
2
1719fa
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
(Note 1)
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT1719CS8#PBF LT1719CS8#TRPBF 1719 8-Lead Plastic SO 0°C to 70°C
LT1719IS8#PBF LT1719IS8#TRPBF 1719I 8-Lead Plastic SO –40°C to 85°C
LT1719CS6#PBF LT1719CS6#TRPBF LTHW 6-Lead Plastic TSOT-23 0°C to 70°C
LT1719IS6#PBF LT1719IS6#TRPBF LTJF 6-Lead Plastic TSOT-23 –40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/
Supply Voltage
+V
S
to GND (LT1719S8) ........................................ 7V
V
CC
to V
EE
(LT1719S8) ........................................ 12V
+V
S
to V
EE
(LT1719S8) ....................................... 12V
V
EE
to GND (LT1719S8) ....................... –12V to 0.3V
V
+
to V
–
(LT1719S6) ...............................................7V
Input Current (+IN, –IN or SHDN) ...................... ±10mA
Output Current (Continuous) ........................... ±20mA
Operating Temperature Range
C-Grade .................................................. 0°C to 70°C
I-Grade ............................................... –40°C to 85°C
Junction Temperature ......................................... 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................. 300°C
TOP VIEW
+V
S
OUT
SHDN
GND
V
CC
+IN
–IN
V
EE
S8 PACKAGE
8-LEAD PLASTIC SO
1
2
3
4
8
7
6
5
+
–
–IN 1
V
–
2
+IN 3
6 SHDN
5 OUT
4 V
+
TOP VIEW
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T
JMAX
= 150°C, θ
JA
= 110°C/W T
JMAX
= 150°C, θ
JA
= 230°C/W
LT1719
3
1719fa
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
– V
EE
Input Supply Voltage (LT1719S8 Only)
l
2.7 10.5 V
+V
S
Output Supply Voltage (LT1719S8 Only)
l
2.7 6 V
V
+
– V
–
Supply Voltage (LT1719CS6 Only)
l
2.7 6 V
V
CMR
Input Voltage Range (Note 2) (LT1719S8)
(LT1719S6)
l
l
V
EE
– 0.1
V
–
– 0.1
V
CC
– 1.2
V
+
– 1.2
V
V
V
TRIP
+
V
TRIP
–
Input Trip Points (Note 3)
l
l
–1.5
–5.5
5.5
1.5
mV
mV
V
OS
Input Offset Voltage (Note 3)
l
0.4 2.5
3.5
mV
mV
V
HYST
Input Hysteresis Voltage (Note 3)
l
2.0 3.5 7 mV
ΔV
OS
/ΔT Input Offset Voltage Drift
l
10 μV/°C
I
B
Input Bias Current
l
–6 –2.5 0 μA
I
OS
Input Offset Current
l
0.2 0.6 μA
CMRR Common Mode Rejection Ratio (Note 4) (LT1719S8)
(Note 5) (LT1719S6)
l
l
55
55
70
65
dB
dB
PSRR Power Supply Rejection Ratio (Note 6) (LT1719S8)
(Note 7) (LT1719S6)
65
65
80
80
dB
dB
A
V
Voltage Gain (Note 8) ∞
V
OH
Output High Voltage I
SOURCE
= 4mA, V
IN
= V
TRIP
+
+ 10mV (LT1719S8)
(LT1719S6)
l
l
+V
S
– 0.4
V
+
– 0.4
V
V
V
OL
Output Low Voltage I
SINK
= 10mA, V
IN
= V
TRIP
–
– 10mV
l
0.4 V
t
PD20
Propagation Delay V
OVERDRIVE
= 20mV (Note 9) V
EE
= 0V(LT1719S8)
V
–
= 0V(LT1719S6)
l
4.5 6.5
8.0
ns
ns
V
OVERDRIVE
= 20mV, V
EE
= –5V (LT1719S8 Only) 4.2 ns
t
PD5
Propagation Delay V
OVERDRIVE
= 5mV (Notes 9, 10) V
EE
= 0V(LT1719S8)
V
–
= 0V(LT1719S6)
l
710
13
ns
ns
t
SKEW
Propagation Delay Skew (Note 11) 0.5 1.5 ns
t
r
Output Rise Time 10% to 90% 2.5 ns
t
f
Output Fall Time 90% to 10% 2.2 ns
t
JITTER
Output Timing Jitter V
IN
= 1.2V
P-P
(6dBm), Z
IN
= 50Ω t
PD
+
f = 20MHz t
PD
–
15
11
ps
RMS
ps
RMS
f
MAX
Maximum Toggle Frequency V
OVERDRIVE
= 50mV, +V
S
or V
+
= 3V
V
OVERDRIVE
= 50mV, +V
S
or V
+
= 5V
70
62.5
MHz
MHz
t
OFF
Turn-Off Delay Time to Z
OUT
≥10kΩ 75 ns
t
ON
Wake-Up Delay Time to V
OH
or V
OL
, I
LOAD
= 1mA 350 ns
I
CC
Positive Input Stage Supply Current +V
S
= V
CC
= 5V, V
EE
= –5V
l
1 2.2 mA
(LT1719S8 Only) +V
S
= V
CC
= 3V, V
EE
= 0V
l
0.9 1.8 mA
I
EE
Negative Input Stage Supply Current +V
S
= V
CC
= 5V, V
EE
= –5V
l
–4.8 –2.6 mA
(LT1719S8 Only) +V
S
= V
CC
= 3V, V
EE
= 0V
l
–3.8 –2.2 mA
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
CM
= 1V, V
SHDN
= 0.5V, V
OVERDRIVE
= 20mV, C
OUT
= 10pF and for the
LT1719S8 V
CC
= +V
S
= 5V and V
EE
= –5V, for the LT1719S6 V
+
= 5V, V
–
= 0V, unless otherwise specifi ed.
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LT1719IS6#TRMPBF

Mfr. #:
Buy LT1719IS6#TRMPBF
Manufacturer:
Analog Devices Inc.
Description:
Analog Comparators 4.5ns 1x/2x S 3V/5V Comp w/ R2R Out
Lifecycle:
New from this manufacturer.
Delivery:
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