LT1713/LT1714
Single/Dual, 7ns, Low Power,
3V/5V/ 5V Rail-to-Rail Comparators
FEATURES
DESCRIPTIO
TM
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Ultrafast: 7ns at 20mV Overdrive The LT 1713/LT1714 are UltraFast 7ns, single/dual
8.5ns at 5mV Overdrive comparators featuring rail-to-rail inputs, rail-to-rail
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Rail-to-Rail Inputs complementary outputs and an output latch. Optimized
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Rail-to-Rail Complementary Outputs for 3V and 5V power supplies, they operate over a single
(TTL/CMOS Compatible) supply voltage range from 2.4V to 12V or from 2.4V to
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Specified at 2.7V, 5V and 5V Supplies 6V dual supplies.
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Low Power (Per Comparator): 5mA
The LT1713/LT1714 are designed for ease of use in a
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Output Latch
variety of systems. In addition to wide supply voltage
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Inputs Can Exceed Supplies Without Phase Reversal
flexibility, rail-to-rail input common mode range extends
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LT1713: 8-Lead MSOP Package
100mV beyond both supply rails and the outputs are
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LT1714: 16-Lead Narrow SSOP Package
protected against phase reversal for inputs extending
further beyond the rails. Also, the rail-to-rail inputs may be
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taken to opposite rails with no significant increase in input
APPLICATIO S
current. The rail-to-rail matched complementary outputs
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High Speed Automatic Test Equipment
interface directly to TTL or CMOS logic and can sink 10mA
+
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Current Sense for Switching Regulators
to within 0.5V of GND or source 10mA to within 0.7V of V .
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Crystal Oscillator Circuits
The LT1713/LT1714 have internal TTL/CMOS compatible
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High Speed Sampling Circuits
latches for retaining data at the outputs. Each latch holds
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High Speed A/D Converters
data as long as its latch pin is held high. Latch pin
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Pulse Width Modulators
hysteresis provides protection against slow moving or
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Window Comparators
noisy latch signals. The LT1713 is available in the 8-lead
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Extended Range V/F Converters
MSOP package. The LT1714 is available in the 16-lead
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Fast Pulse Height/Width Discriminators
narrow SSOP package.
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Line Receivers
, LTC and LT are registered trademarks of Linear Technology Corporation.
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High Speed Triggers UltraFast is a trademark of Linear Technology Corporation.
TYPICAL APPLICATIO
A 4 NTSC Subcarrier Voltage-Tunable Crystal Oscillator
5V
LT1713/LT1714 Propagation Delay
47k* LT1004-2.5 vs Input Overdrive
1N4148
3.9k*
V
IN
0V TO 5V
9.0
1M
1M* 1k* T = 25C
A
+
V = 5V
8.5
V = 0V
MV-209
5V
V = 100mV
1M VARACTOR 8.0 STEP
0.047F +
t
DIODE PD
1M C SELECT
2k
7.5
(CHOOSE FOR CORRECT
100pF t
PD
PLL LOOP RESPONSE)
7.0
390W
Y1** 15pF 100pF
6.5
+
6.0
LT1713
FREQUENCY
5.5
OUTPUT
171314 TA01
2k
5.0
0 10 20 30 40 50 60
200pF
INPUT OVERDRIVE (mV)
* 1% FILM RESISTOR
** NORTHERN ENGINEERING LABS C-2350N-14.31818MHz
171314 TA02
1
PROPAGATION DELAY (ns)
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ULT1713/LT1714
ABSOLUTE AXI U RATI GS
(Note 1)
Supply Voltage Output Current (Continuous) .............................. 20mA
+
V to V ............................................................ 12.6V Operating Temperature Range ................ 40 C to 85 C
+
V to GND ........................................................ 12.6V Specified Temperature Range (Note 2) ... 40 C to 85 C
V to GND .............................................10V to 0.3V Junction Temperature.......................................... 150 C
Differential Input Voltage ................................... 12.6V Storage Temperature Range ................. 65 C to 150 C
Latch Pin Voltage...................................................... 7V Lead Temperature (Soldering, 10 sec).................. 300 C
Input and Latch Current ..................................... 10mA
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PACKAGE/ORDER I FOR ATIO
TOP VIEW
ORDER PART ORDER PART
LATCH
NUMBER
NUMBER
1
IN A 16
ENABLE A
2
+IN A 15 GND
TOP VIEW
LT1713CMS8 LT1714CGN
3
V 14 Q A
+
V 1 8 Q OUT
LT1713IMS8 LT1714IGN
+
4
V 13 Q A
+IN 2 7 Q OUT
IN 3 6 GND +
5
V 12 Q B
V 4 5 LATCH
ENABLE V 6 11 Q B
MS8 PACKAGE
MS8 PART MARKING GN PART MARKING
+IN B 7 10 GND
8-LEAD PLASTIC MSOP
LATCH
IN B 8 9
T = 150 C, q = 250 C/ W
ENABLE B
JMAX JA
LTRD 1714
GN PACKAGE
LTUK 1714I
16-LEAD PLASTIC SSOP
T = 150 C, q = 120 C/ W
JMAX JA
Consult factory for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The l denotes specifications which apply over the full operating temperature range, otherwise specifications are at T = 25 C.
A
+ + +
V = 2.7V or V = 5V, V = 0V, V = V /2, V = 0.8V, C = 10pF, V = 20mV, unless otherwise specified.
CM LATCH LOAD OVERDRIVE
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
+
V Positive Supply Voltage Range l 2.4 7 V
+
V Input Offset Voltage (Note 4) R = 50W , V = V /2 0.5 4 mV
OS S CM
+
R = 50W , V = V /2 (Note 11) l 5mV
S CM
R = 50W , V = 0V 0.7 mV
S CM
+
R = 50W , V = V 1mV
S CM
D V /D T Input Offset Voltage Drift l 5 m V/ C
OS
I Input Offset Current 0.1 1 m A
OS
l 2 m A
I Input Bias Current (Note 5) 7 1.5 2 m A
B
l 15 5 m A
+
V Input Voltage Range (Note 9) l 0.1 V + 0.1 V
CM
+
CMRR Common Mode Rejection Ratio V = 5V, 0V V 5V 60 70 dB
CM
+
V = 5V, 0V V 5V l 58 dB
CM
+
V = 2.7V, 0V V 2.7V 57 70 dB
CM
+
V = 2.7V, 0V V 2.7V l 55 dB
CM
2
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