2024年3月23日发(作者：区乐和)
元器件交易网
LT1711/LT1712
Single/Dual 4.5ns, 3V/5V/±5V,
Rail-to-Rail Comparators
DESCRIPTIO
s
s
s
s
s
s
s
s
U
APPLICATIO S
s
s
s
s
s
s
s
s
s
s
s
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
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.
UltraFast is a trademark 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
TYPICAL APPLICATIO
A 4× NTSC Subcarrier Voltage-Tunable Crystal Oscillator
5V
1N4148
1M
5V
1M
2k
100pF
MV-209
VARACTOR
DIODE
1M*
47k*
LT1004-2.5
3.9k*
1k*
5.5
LT1711/LT1712 Propagation Delay
vs Input Overdrive
V
IN
0V TO 5V
6.0
T
A
= 25°C
V
+
= 5V
V
–
= 0V
V
STEP
= 100mV
t
PD
+
1M
0.047µF
C SELECT
(CHOOSE FOR CORRECT
PLL LOOP RESPONSE)
P
R
O
P
A
G
A
T
I
O
N
D
E
L
A
Y
(
n
s
)
5.0
4.5
4.0
3.5
3.0
390Ω
+
LT1711
Y1**15pF100pF
–
2k
200pF
FREQUENCY
OUTPUT
171112 TA01
* 1% FILM RESISTOR
** NORTHERN ENGINEERING LABS C-2350N-14.31818MHz
U
t
PD
–
0
102040
50
30
INPUT OVERDRIVE (mV)
60
171112 TA02
FEATURES
U
1
元器件交易网
LT1711/LT1712
ABSOLUTE AXI U RATI GS
Supply Voltage
V
+
to V
–
............................................................12.6V
V
+
12.6V
V
–
–10V to 0.3V
Differential ±12.6V
Latch 7V
Input and . ±10mA
UU
W
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
TOP VIEW
V
+
1
+IN
2
–IN
3
V
–
4
8
7
6
5
Q
Q
GND
LATCH
ENABLE
LT1711CMS8
LT1711IMS8
MS8 PART MARKING
LTTC
LTTD
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C, θ
JA
= 250°C/W (NOTE 12)
Consult factory for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The
q
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.
SYMBOLPARAMETER
V
+
V
OS
Positive Supply Voltage Range
Input Offset Voltage (Note 4)R
S
= 50Ω, V
CM
= V
+
/2
R
S
= 50Ω, V
CM
= V
+
/2
R
S
= 50Ω, V
CM
= 0V
R
S
= 50Ω, V
CM
= V
+
CONDITIONS
q
q
∆V
OS
/∆T
I
OS
I
B
V
CM
CMRR
Input Offset Voltage Drift
Input Offset Current
Input Bias Current (Note 5)
q
Input Voltage Range (Note 9)
Common Mode Rejection RatioV
+
= 5V, 0V ≤ V
CM
≤ 5V
V
+
= 5V, 0V ≤ V
CM
≤ 5V
V
+
= 2.7V, 0V ≤ V
CM
≤ 2.7V
V
+
= 2.7V, 0V ≤ V
CM
≤ 2.7V
2.4V ≤ V
+
≤ 7V, V
CM
= 0VPSRR
+
Positive Power Supply Rejection Ratio
2
UWWW
(Note 1)
Output Current (Continuous)..............................±20mA
Operating .–40°C to 85°C
Specified Temperature Range (Note 2)...–40°C to 85°C
150°C
Storage –65°C to 150°C
Lead Temperature (Soldering, 10 sec)..................300°C
TOP VIEW
–IN A
+IN A
V
–
V
+
V
+
V
–
+IN B
–IN B
1
2
3
4
5
6
7
8
LATCH
16
ENABLE A
15
GND
14
Q A
13
Q A
12
Q B
11
Q B
10
GND
LATCH
9
ENABLE B
ORDER PART
NUMBER
LT1712CGN
LT1712IGN
GN PART MARKING
1712
1712I
GN PACKAGE
16-LEAD PLASTIC SSOP
T
JMAX
= 150°C, θ
JA
= 120°C/W (NOTE 12)
MIN
2.4
TYP
0.5
0.7
1
MAX
7
5.0
6.0
UNITS
V
mV
mV
mV
mV
µV/°C
µA
µA
µA
µA
V
dB
dB
dB
dB
dB
dB
q
q
10
0.2
–18
–35
–0.1
56
53
54
50
58
56
65
65
75
–5
3
6
5
10
V
+
+ 0.1
q
q
q
q
2024年3月23日发(作者：区乐和)
元器件交易网
LT1711/LT1712
Single/Dual 4.5ns, 3V/5V/±5V,
Rail-to-Rail Comparators
DESCRIPTIO
s
s
s
s
s
s
s
s
U
APPLICATIO S
s
s
s
s
s
s
s
s
s
s
s
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
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.
UltraFast is a trademark 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
TYPICAL APPLICATIO
A 4× NTSC Subcarrier Voltage-Tunable Crystal Oscillator
5V
1N4148
1M
5V
1M
2k
100pF
MV-209
VARACTOR
DIODE
1M*
47k*
LT1004-2.5
3.9k*
1k*
5.5
LT1711/LT1712 Propagation Delay
vs Input Overdrive
V
IN
0V TO 5V
6.0
T
A
= 25°C
V
+
= 5V
V
–
= 0V
V
STEP
= 100mV
t
PD
+
1M
0.047µF
C SELECT
(CHOOSE FOR CORRECT
PLL LOOP RESPONSE)
P
R
O
P
A
G
A
T
I
O
N
D
E
L
A
Y
(
n
s
)
5.0
4.5
4.0
3.5
3.0
390Ω
+
LT1711
Y1**15pF100pF
–
2k
200pF
FREQUENCY
OUTPUT
171112 TA01
* 1% FILM RESISTOR
** NORTHERN ENGINEERING LABS C-2350N-14.31818MHz
U
t
PD
–
0
102040
50
30
INPUT OVERDRIVE (mV)
60
171112 TA02
FEATURES
U
1
元器件交易网
LT1711/LT1712
ABSOLUTE AXI U RATI GS
Supply Voltage
V
+
to V
–
............................................................12.6V
V
+
12.6V
V
–
–10V to 0.3V
Differential ±12.6V
Latch 7V
Input and . ±10mA
UU
W
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
TOP VIEW
V
+
1
+IN
2
–IN
3
V
–
4
8
7
6
5
Q
Q
GND
LATCH
ENABLE
LT1711CMS8
LT1711IMS8
MS8 PART MARKING
LTTC
LTTD
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C, θ
JA
= 250°C/W (NOTE 12)
Consult factory for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The
q
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.
SYMBOLPARAMETER
V
+
V
OS
Positive Supply Voltage Range
Input Offset Voltage (Note 4)R
S
= 50Ω, V
CM
= V
+
/2
R
S
= 50Ω, V
CM
= V
+
/2
R
S
= 50Ω, V
CM
= 0V
R
S
= 50Ω, V
CM
= V
+
CONDITIONS
q
q
∆V
OS
/∆T
I
OS
I
B
V
CM
CMRR
Input Offset Voltage Drift
Input Offset Current
Input Bias Current (Note 5)
q
Input Voltage Range (Note 9)
Common Mode Rejection RatioV
+
= 5V, 0V ≤ V
CM
≤ 5V
V
+
= 5V, 0V ≤ V
CM
≤ 5V
V
+
= 2.7V, 0V ≤ V
CM
≤ 2.7V
V
+
= 2.7V, 0V ≤ V
CM
≤ 2.7V
2.4V ≤ V
+
≤ 7V, V
CM
= 0VPSRR
+
Positive Power Supply Rejection Ratio
2
UWWW
(Note 1)
Output Current (Continuous)..............................±20mA
Operating .–40°C to 85°C
Specified Temperature Range (Note 2)...–40°C to 85°C
150°C
Storage –65°C to 150°C
Lead Temperature (Soldering, 10 sec)..................300°C
TOP VIEW
–IN A
+IN A
V
–
V
+
V
+
V
–
+IN B
–IN B
1
2
3
4
5
6
7
8
LATCH
16
ENABLE A
15
GND
14
Q A
13
Q A
12
Q B
11
Q B
10
GND
LATCH
9
ENABLE B
ORDER PART
NUMBER
LT1712CGN
LT1712IGN
GN PART MARKING
1712
1712I
GN PACKAGE
16-LEAD PLASTIC SSOP
T
JMAX
= 150°C, θ
JA
= 120°C/W (NOTE 12)
MIN
2.4
TYP
0.5
0.7
1
MAX
7
5.0
6.0
UNITS
V
mV
mV
mV
mV
µV/°C
µA
µA
µA
µA
V
dB
dB
dB
dB
dB
dB
q
q
10
0.2
–18
–35
–0.1
56
53
54
50
58
56
65
65
75
–5
3
6
5
10
V
+
+ 0.1
q
q
q
q