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LT1711IMS8#TRPBF

P1-P3P4-P6P7-P9P10-P12
1
LT1711/LT1712
Single/Dual 4.5ns, 3V/5V/±5V,
Rail-to-Rail Comparators
The LT
®
1711/LT1712 are UltraFast
TM
4.5ns comparators
featuring rail-to-rail inputs, rail-to-rail complementary out-
puts and an output latch. Optimized for 3V and 5V power
supplies, they operate over a single supply voltage range
from 2.4V to 12V or from ±2.4V to ±6V dual supplies.
The LT1711/LT1712 are designed for ease of use in a
variety of systems. In addition to wide supply voltage
flexibility, rail-to-rail input common mode range extends
100mV beyond both supply rails, and the outputs are
protected against phase reversal for inputs extending
further beyond the rails. Also, the rail-to-rail inputs may be
taken to opposite rails with no significant increase in input
current. The rail-to-rail matched complementary outputs
interface directly to TTL or CMOS logic and can sink 10mA
to within 0.5V of GND or source 10mA to within 0.7V of V
+
.
The LT1711
/LT1712
have internal TTL/CMOS compatible
latches for retaining data at the outputs. Each latch holds
data as long as the latch pin is held high. Latch pin
hysteresis provides protection against slow moving or
noisy latch signals. The LT1711 is available in the 8-pin
MSOP package. The LT1712 is available in the 16-pin
narrow SSOP package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
■
High Speed Automatic Test Equipment
■
Current Sense for Switching Regulators
■
Crystal Oscillator Circuits
■
High Speed Sampling Circuits
■
High Speed A/D Converters
■
Pulse Width Modulators
■
Window Comparators
■
Extended Range V/F Converters
■
Fast Pulse Height/Width Discriminators
■
Line Receivers
■
High Speed Triggers
UltraFast is a trademark of Linear Technology Corporation.
LT1711/LT1712 Propagation Delay
vs Input Overdrive
■
Ultrafast: 4.5ns at 20mV Overdrive
5.5ns at 5mV Overdrive
■
Rail-to-Rail Inputs
■
Rail-to-Rail Complementary Outputs (TTL/CMOS
Compatible)
■
Specified at 2.7V, 5V and ±5V Supplies
■
Output Latch
■
Inputs Can Exceed Supplies Without Phase Reversal
■
LT1711: 8-Lead MSOP Package
■
LT1712: 16-Lead Narrow SSOP Package
171112 TA01
–
+
LT1711
5V
390Ω
200pF
* 1% FILM RESISTOR
** NORTHERN ENGINEERING LABS C-2350N-14.31818MHz
5V
FREQUENCY
OUTPUT
3.9k*
V
IN
0V TO 5V
1M
MV-209
VARACTOR
DIODE
2k
2k
100pF
15pFY1** 100pF
0.047µF
C SELECT
(CHOOSE FOR CORRECT
PLL LOOP RESPONSE)
1M
1M
1M*
1N4148
LT1004-2.5
47k*
1k*
A 4× NTSC Subcarrier Voltage-Tunable Crystal Oscillator
INPUT OVERDRIVE (mV)
0
PROPAGATION DELAY (ns)
3.5
4.0
4.5
t
PD
+
t
PD
–
30
50
171112 TA02
3.0
10 20 40
5.0
5.5
6.0
60
T
A
= 25°C
V
+
= 5V
V
–
= 0V
V
STEP
= 100mV
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
2
LT1711/LT1712
Supply Voltage
V
+
to V
–
............................................................ 12.6V
V
+
to GND ........................................................ 12.6V
V
–
to GND .............................................–10V to 0.3V
Differential Input Voltage ................................... ±12.6V
Latch Pin Voltage...................................................... 7V
Input and Latch Current..................................... ±10mA
ABSOLUTE AXI U RATI GS
WWWU
ORDER PART
NUMBER
LT1711CMS8
LT1711IMS8
Consult factory for parts specified with wider operating temperature ranges.
T
JMAX
= 150°C, θ
JA
= 250°C/ W (NOTE 12)
PACKAGE/ORDER I FOR ATIO
UU
W
MS8 PART MARKING
LTTC
LTTD
1
2
3
4
V
+
+IN
–IN
V
–
8
7
6
5
Q
Q
GND
LATCH
ENABLE
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
(Note 1)
Output Current (Continuous) ..............................±20mA
Operating Temperature Range ................ –40°C to 85°C
Specified Temperature Range (Note 2)... –40°C to 85°C
Junction Temperature.......................................... 150°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
GN PACKAGE
16-LEAD PLASTIC SSOP
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
–IN A
+IN A
V
–
V
+
V
+
V
–
+IN B
–IN B
GND
Q A
Q A
Q B
Q B
GND
LATCH
ENABLE A
LATCH
ENABLE B
T
JMAX
= 150°C, θ
JA
= 120°C/ W (NOTE 12)
ORDER PART
NUMBER
LT1712CGN
LT1712IGN
GN PART MARKING
1712
1712I
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
+
Positive Supply Voltage Range ● 2.4 7 V
V
OS
Input Offset Voltage (Note 4) R
S
= 50Ω, V
CM
= V
+
/2 0.5 5.0 mV
R
S
= 50Ω, V
CM
= V
+
/2 ● 6.0 mV
R
S
= 50Ω, V
CM
= 0V 0.7 mV
R
S
= 50Ω, V
CM
= V
+
1mV
∆V
OS
/∆T Input Offset Voltage Drift ● 10 µV/°C
I
OS
Input Offset Current 0.2 3 µA
● 6 µA
I
B
Input Bias Current (Note 5) –18 –5 5 µA
● –35 10 µA
V
CM
Input Voltage Range (Note 9) ● –0.1 V
+
+ 0.1 V
CMRR Common Mode Rejection Ratio V
+
= 5V, 0V ≤ V
CM
≤ 5V 56 65 dB
V
+
= 5V, 0V ≤ V
CM
≤ 5V ● 53 dB
V
+
= 2.7V, 0V ≤ V
CM
≤ 2.7V 54 65 dB
V
+
= 2.7V, 0V ≤ V
CM
≤ 2.7V ● 50 dB
PSRR
+
Positive Power Supply Rejection Ratio 2.4V ≤ V
+
≤ 7V, V
CM
= 0V 58 75 dB
● 56 dB
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
V
+
= 2.7V or V
+
= 5V, V
–
= 0V, V
CM
= V
+
/2, V
LATCH
= 0.8V, C
LOAD
= 10pF, V
OVERDRIVE
= 20mV, unless otherwise specified.
3
LT1711/LT1712
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
PSRR
–
Negative Power Supply Rejection Ratio –7V ≤ V
–
≤ 0V, V
+
= 5V, V
CM
= 5V 60 80 dB
● 58 dB
A
V
Small-Signal Voltage Gain (Note 10) 1 15 V/mV
V
OH
Output Voltage Swing HIGH I
OUT
= 1mA, V
OVERDRIVE
= 50mV ● V
+
– 0.5 V
+
– 0.2 V
I
OUT
= 10mA, V
OVERDRIVE
= 50mV ● V
+
– 0.7 V
+
– 0.4 V
V
OL
Output Voltage Swing LOW I
OUT
= –1mA, V
OVERDRIVE
= 50mV ● 0.20 0.4 V
I
OUT
= –10mA, V
OVERDRIVE
= 50mV ● 0.35 0.5 V
I
+
Positive Supply Current (Per Comparator) V
+
= 5V, V
OVERDRIVE
= 1V 15 19 mA
● 26 mA
I
–
Negative Supply Current (Per Comparator) V
+
= 5V, V
OVERDRIVE
= 1V 8 10 mA
● 13 mA
V
IH
Latch Pin High Input Voltage ● 2.4 V
V
IL
Latch Pin Low Input Voltage ● 0.8 V
I
IL
Latch Pin Current V
LATCH
= V
+
● 15 µA
t
PD
Propagation Delay (Note 6) ∆V
IN
= 100mV, V
OVERDRIVE
= 20mV 4.5 6.0 ns
∆V
IN
= 100mV, V
OVERDRIVE
= 20mV ● 8.5 ns
∆V
IN
= 100mV, V
OVERDRIVE
= 5mV 5.5 ns
∆t
PD
Differential Propagation Delay (Note 6) ∆V
IN
= 100mV, V
OVERDRIVE
= 20mV 0.5 1.5 ns
t
r
Output Rise Time 10% to 90% 2 ns
t
f
Output Fall Time 90% to 10% 2 ns
t
LPD
Latch Propagation Delay (Note 7) 5ns
t
SU
Latch Setup Time (Note 7) 1ns
t
H
Latch Hold Time (Note 7) 0ns
t
DPW
Minimum Latch Disable Pulse Width (Note 7) 5 ns
f
MAX
Maximum Toggle Frequency V
IN
= 100mV
P-P
Sine Wave 100 MHz
t
JITTER
Output Timing Jitter V
IN
= 630mV
P-P
(0dBm) Sine Wave, f = 30MHz 11 ps
RMS
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
V
+
= 2.7V or V
+
= 5V, V
–
= 0V, V
CM
= V
+
/2, V
LATCH
= 0.8V, C
LOAD
= 10pF, V
OVERDRIVE
= 20mV, unless otherwise specified.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
+
Positive Supply Voltage Range ● 2.4 7 V
V
–
Negative Supply Voltage Range (Note 3) ● –7 0 V
V
OS
Input Offset Voltage (Note 4) R
S
= 50Ω, V
CM
= 0V 0.5 5.0 mV
R
S
= 50Ω, V
CM
= 0V ● 6.0 mV
R
S
= 50Ω, V
CM
= 5V 0.7 mV
R
S
= 50Ω, V
CM
= –5V 1 mV
∆V
OS
/∆T Input Offset Voltage Drift 10 µV/°C
I
OS
Input Offset Current 0.2 3 µA
● 6 µA
I
B
Input Bias Current (Note 5) –18 –5 5 µA
● –35 10 µA
V
CM
Input Voltage Range ● –5.1 5.1 V
CMRR Common Mode Rejection Ratio –5V ≤ V
CM
≤ 5V 61 75 dB
● 58 dB
PSRR
+
Positive Power Supply Rejection Ratio 2.4V ≤ V
+
≤ 7V, V
CM
= –5V 58 85 dB
● 56 dB
PSRR
–
Negative Power Supply Rejection Ratio –7V ≤ V
–
≤ 0V, V
CM
= 5V 60 80 dB
● 58 dB
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
V
+
= 5V, V
–
= –5V, V
CM
= 0V, V
LATCH
= 0.8V, C
LOAD
= 10pF, V
OVERDRIVE
= 20mV, unless otherwise specified.
P1-P3P4-P6P7-P9P10-P12

LT1711IMS8#TRPBF

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Buy LT1711IMS8#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Analog Comparators 4.5ns R2R Comp
Lifecycle:
New from this manufacturer.
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