LM319 [Linear]
Dual Comparator; 双比较器
| 型号： | LM319 |
| 厂家： | 
Linear |
| 描述： | Dual Comparator |
| 文件： | 总8页 (文件大小：242K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LT119A/LT319A
LM119/LM319
Dual Comparator
U
FEATURES
DESCRIPTION
■
Guaranteed Maximum 0.5mV Input Offset Voltage
Input Protection Diodes
Operates From Single 5V Supply
25mA Drive Capability
80ns Response Time
The LT119A is an improved version of the LM119 dual
comparator. It features lower input offset voltage and
offset current, higher voltage gain, guaranteed common
mode rejection, and input protection diodes.
■
■
■
■
The LT119A is capable of operation over a supply range
from5Vto±15Vandcandrive25mAloadsfromeachopen
collectoroutput. A separate ground pin allowsthe LT119A
to isolate system grounds.
U
APPLICATIONS
■
Linear Technology Corporation’s advanced processing,
designtechniquesandreliabilitymaketheLT119A/LT319A
an ideal choice over previous devices in most comparator
applications.
Window Detectors
■
High Speed One Shot
■
Relay/Lamp Drivers
Voltage Controlled Oscillators
■
U
TYPICAL APPLICATION
Response Time for Various Input Overdrives
Window Detector*
6
5
5V
10
LT319A
2
3
4
500Ω
TTL OUTPUT
V
+
UT
2mV
5mV
4
3
1
1
/
2
20mV
V
IN
–
2
1
V
= ±15V
0
V
V
V
V
= 5.0V FOR
S
OUT
R
V
T
= 500Ω
≤ V ≤ V
IN
L
8
9
LT
UT
100
50
0
++
+
= 5V
= 25°C
= 0V FOR
OUT
6
≤ V OR V ≤ V
A
IN
LT
IN
UT
1
/
LT319A
2
V
7
LT
–
5
300
350
0
50 100 150 200 250
TIME (ns)
LT119/319 TA2
LT119/319 TA1
ALLOWED WINDOW FOR SINGLE +5V SUPPLY IS 1.2V TO 3.8V
*
1
LT119A/LT319A
LM119/LM319
W W U W
U
W U
ABSOLUTE MAXIMUM RATINGS
PACKAGE/ORDER INFORMATION
Supply Voltage ........................................................ 36V
Output to Negative Supply Voltage .......................... 36V
Ground to Negative Supply Voltage ......................... 25V
Ground to Positive Supply Voltage .......................... 18V
Differential Input Voltage (Note 5) .......................... ± 5V
Differential Input Current (Note 5) ........................±5mA
Input Voltage (Note 1)
TOP VIEW
ORDER PART
+
V
–INPUT 2
OUTPUT 1
NUMBER
10
1
9
+INPUT 2
GND
2
8
7
LT119AH
LM119H
LT319AH
LM319H
3
+INPUT 1
GND 2
4
6
5
V
–INPUT 1
OUTPUT 2
–
Output Short-Circuit Duration................................... 10s
Operating Temperature Range
LT119A, LM119............................... – 55°C to 125°C
LT319A, LM319...................................... 0°C to 70°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
H PACKAGE
10-LEAD TO-5 METAL CAN
TJMAX = 150°C, θJA = 150°C/ W, θJc = 45°C/ W
TOP VIEW
LT119AJ
LM119J
LT319AJ
LM319J
LT319AN
LM319N
1
2
3
4
5
6
7
NC
14
13
12
11
10
9
NC
NC
NC
OUTPUT 1
GND
+
V
+INPUT
–INPUT
–INPUT 2
+INPUT 2
GND 2
–
V
8
OUTPUT 2
N PACKAGE
14-LEAD PLASTIC DIP
J PACKAGE
14-LEAD CERAMIC DIP
TJMAX = 150°C, θJA = 100°C/ W (J)
TJMAX = 85°C, θJA = 100°C/ W (N)
Consult factory for Industrial and Military grade parts.
(Note 2)
ELECTRICAL CHARACTERISTICS
LT119A
TYP
LT119
TYP
SYMBOL PARAMETER
CONDITIONS
MIN
MAX
MIN
MAX
UNITS
V
OS
V
OS
Input Offset Voltage
Input Offset Voltage
V = ±15V, V = 0
(Note 3)
0.3
0.5
1.2
0.5
1.0
2.0
4
4
7
mV
mV
mV
S
CM
0.7
●
CMRR
Common-Mode Rejection Ratio
Input Offset Current
90
106
20
dB
nA
nA
nA
nA
I
(Note 3)
(Note 3)
40
75
500
30
75
100
500
1000
OS
●
●
I
Input Bias Current
150
150
B
1000
A
V
Voltage Gain
Response Time
Saturation Voltage
20
40
80
0.75
10
40
80
0.75
V/mV
ns
V
(Note 4)
V
IN
+
≤ –5mV, I = 25mA
1.5
1.5
V
SAT
O
–
V ≥ 4.5V, V = 0V
V
≤ –6mA, I
≤ 3.2mA
IN
SINK
T ≥ 0°C
0.23
0.4
0.6
0.23
0.4
0.6
V
V
A
T ≤ 0°C
A
Output Leakage Current
Input Voltage Range
V
≥ 5mV, V
= 35V
OUT
0.2
1
±13
2
10
12
3
0.2
1
±13
2
10
12
3
µA
µA
V
V
IN
●
V = ±15V
●
●
–12
1
–12
1
S
+
–
V = 5V, V = 0V
2
LT119A/LT319A
LM119/LM319
ELECTRICAL CHARACTERISTICS (Note 2)
LT119A
TYP
LT119
TYP
SYMBOL PARAMETER
Differential Input Voltage
Supply Current
CONDITIONS
MIN
MAX
±5
MIN
MAX
±5
UNITS
V
●
●
+
–
I
I
I
V = 5V, V = 0V
V = ±15V
4.3
8
3
0.3
0.5
4.3
8
3
mA
mA
mA
mV
S
S
S
Positive Supply Current
Negative Supply Current
Input Offset Voltage
11.5
4.5
0.5
1
2
11.5
4.5
8
S
V = ±15V
S
V
V
V = ±15V, V = 0V
OS
S
CM
Input Offset Voltage
R ≤ 5k
S
2
8
10
mV
mV
OS
(Note 3)
CMRR
Common-Mode Rejection Ratio
Input Offset Current
90
20
106
30
dB
nA
nA
nA
nA
V/mV
ns
I
(Note 3)
(Note 3)
40
60
500
80
200
300
1000
1200
OS
●
●
I
Input Bias Current
150
250
B
1000
A
V
Voltage Gain
Response Time
Saturation Voltage
40
80
8
1
40
80
(Note 4)
V
SAT
V
≤ –10mV, I
T = 25°C
A
= 25mA
SINK
IN
0.75
1.5
0.75
1.5
V
+
–
V ≥ 4.5V, V = 0V
≤ –10mV, I
V
≤ 3.2mA
SINK
= 35V
OUT
●
0.3
0.2
±13
0.4
10
0.3
0.2
±13
0.4
10
V
µA
V
V
IN
Output Leakage Current
Input Voltage Range
V
IN
≥ 10mV, V
V = ±15V
●
●
S
+
–
V = 5V, V = 0V
1
3
3
Differential Input Voltage
Supply Current
Positive Supply Current
Negative Supply Current
●
±5
±5
V
mA
mA
mA
+
–
I
I
I
V = 5V, V = 0V
V = ±15V
4.3
8
3
4.3
8
3
S
12.5
5
12.5
5
S
S
S
V = ±15V
S
The
●
denotes specifications which apply over the full operating
Note 3: The offset voltages and currents given are the maximum values
required to drive the output within 1V of either supply with a 1mA load,
thus these parameters define an error band and take into account the
worst case effects of voltage gain and input impedance.
temperature range.
Note 1: For supply voltages less than ±15V, the maximum input voltage is
equal to the supply voltage.
Note 4: Response time specified is for a 100mV input step with 5mV
overdrive.
Note 5: Inputs are protected with back-to-back 5.6V zener diodes. This
limits maximum differential input voltage to ±5V if current is unlimited.
Larger differential input drive is allowed if input current is limited to ±5mA
with external resistance.
Note 2: Unless otherwise noted, supply voltage equals ±15V and
T = 25°C. The ground pin is grounded. Note that the maximum voltage
A
+
allowed between the ground pin and V is 18V. Do not tie the ground pin
to V when the power supply voltage exceeds ±9V. The offset voltage,
–
offset current and bias current specifications apply for all supply voltages
between ±15V and 5V unless otherwise specified.
3
LT119A/LT319A
LM119/LM319
W
U
TYPICAL PERFORMANCE CHARACTERISTICS
Transfer Function
Input Characteristics
Input Currents
40
35
30
25
20
15
10
5.0
0
8
7
6
5
4
3
2
1
0
400
300
200
100
0
250
200
++
V
T
= ±15V
= 25°C
V
R
= ±15V
= 1.4k
= 25°C
V
= 36V
= 5V
S
S
V = ±15V
S
A
L
T
A
++
V
BIAS
150
100
50
0
MAXIMUM
DIFFERENTIAL
INPUT VOLTAGE
OFFSET
–100
–10
–6
–2
2
6
10
–1.0
–0.6
–0.2
0.2
0.6
1.0
–55 –35 –15
5
25 45 65 85 105 125
DIFFERENTIAL INPUT VOLTAGE (V)
DIFFERENTIAL INPUT VOLTAGE (mV)
TEMPERATURE (°C)
LT119/319 G2
LT119/319 G1
LT119/319 G3
Response Time for Various
Input Overdrives
Response Time for Various
Input Overdrives
Response Time for Various
Input Overdrives
6
6
5
6
V
S
= 5V
= 500Ω
= 5V
= 25°C
V
S
= ±15V
5
5
R
V
R
V
T
= 500Ω
= 5V
= 25°C
L
L
2mV
5mV
++
++
2mV
4
4
4
T
A
A
3
2
3
3
2
20mV
5mV
5mV
2
20mV
2mV
20mV
1
1
1
V
S
= 5V
0
0
0
R
V
= 500Ω
= 5V
= 25°C
L
0
100
50
0
0
++
–50
–100
–50
–100
T
A
300
300
300
350
0
50 100 150 200 250
TIME (ns)
350
0
50 100 150 200 250
TIME (ns)
350
0
50 100 150 200 250
TIME (ns)
LT119/319 G4
LT119/319 G5
LT119/319 G6
Output Saturation Voltage
Supply Current
Output Limiting Characteristics
120
100
80
60
40
20
0
1.2
1.0
0.8
0.6
0.4
0.2
12
10
8
25
20
15
10
5
T
J
= 25°C
T = 25°C
J
T
= 25°C
J
SHORT-CIRCUIT CURRENT
AFTER 3 MINUTES
POSITIVE SUPPLY
6
4
NEGATIVE SUPPLY
POWER DISSIPATION
2
V
= ±15V
S
INPUT OVERDRIVE = 5mV
0
0
0
15
5
SUPPLY VOLTAGE (V)
0
10
20
0
5
10
15
0
0.2
0.4
0.6
0.8
1.0
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
LT119/319 G8
LT119/319 G9
LT119/319 G7
4
LT119A/LT319A
LM119/LM319
W
U
TYPICAL PERFORMANCE CHARACTERISTICS
Common-Mode Limits
Supply Current
+
V
12
10
+
–
V
= 5V, V = 0V
–0.4
–0.8
–1.2
–1.6
–2.0
1.2
POSITIVE SUPPLY = 15V
V
= ±15V
S
8
REFERRED TO SUPPLY VOLTAGES
6
4
–
POSITIVE SUPPLY = 5V, V = 0V
+
–
0.8
V
S
= ±15V, V = 5V, V = 0V
2
0
NEGATIVE SUPPLY = –15V
0.4
–
V
–55 –35 –15
5
25 45 65
85 105 125
–55 –35 –15
5
25 45 65
85 105 125
TEMPERATURE (°C)
TEMPERATURE (°C)
LT119/319 G11
LT119/319 G10
U
TYPICAL APPLICATIONS
High Noise Immunity 60Hz Sync Circuit
Relay Driver
5V
28V
5V
10
LT319A
68k
9
8
–
3.3k
60Hz
1N4148
20k
6
9
8
INPUT
1
INPUTS
/
2
–
10
LT319A
10V
P–P
7
6
(TYP)
+
1
OUTPUT
/
0.15µF
2
35V
7
5
+
5
10k
10k
LT119/319 TA3
Voltage Controlled Crystal Oscillator
With 100PPM Trim Range
AT CUT
18pF, 100kHz
LT119/319 TA4
100k
10k
INPUT
0V TO 5V
5V
MV1405*
5V
10
1k
4
3
–
1
8
9
1k
1
1000pF
/
LT319A
2
+
2
6
1
/
LT319A
2
OUTPUT
+
7
–
39k
20k
20k
5
3k
5V
2k
LT119/319 TA5
5
LT119A/LT319A
LM119/LM319
U
TYPICAL APPLICATIONS
Voltage Controlled High Speed One Shot
5V
100pF
9
10
680Ω
–
1
6
/
LT319A
2
7408
2
2k
8
+
5V
INPUT
PULSE
5V
OUTPUT
0µs TO 1µs
(20ns MINIMUM)
10k
100pF
1k
3
4
680Ω
+
1
1
/
LT319A
5
2
2k
120pF
7
–
300pF
0V TO 1V
INPUT
LT119/319 TA6
LM385-1.2
5V
10-Bit Serial Output A/D Converter
5V
INPUT
0V TO 3.5V
5V
10k*
20k*
LT1004-1.2
4.7k
5V
1k
10k
4
10
–
1
74C04
1N4148
1
8
9
PN4250
PN4250
/
LT119A
2
+
1
2
3
6
1000µF†
+
/
LT119A
7
2
5
–
DATA
OUT
–5V
1N4148
1k
39k
82k
0.1µF†
2N3904
15k
1N4148
1k
CONVERSION TIME = 10ms
* = 1%
3.9k
–5V
CAPACITORS ARE POLYSTYRENE MOUNT
IN CLOSE PROXIMITY
CONVERT
COMMAND
INPUT (TTL)
5V
*1% FILM
LT119/319 TA7
† POLYSTYRENE, MOUNT
CAPACITORS CLOSE TOGETHER
5 Microsecond Sample-and-Hold with Zero Hold Step
15V
4.7k
1N4148
+
3k
100Ω
10µF
2N2907
15V
240Ω
15V
2N4931
2N2907
V
OUT
10
12k
3k
3
4
2pF
10pF
1k
0.003µF†
2N2222
3.3k
–15V
–
9k
1k
10k
2N2907
20k
TO 8pF*
9
8
1
1
–
1
/
2
LT119A
5
6
2
+
/
LT119A
15V
2
7
+
9k
INPUT
1N4148
3k
–15V
V
Q
CLK D
S
74C74
PRESET
CLR
*TRIM FOR ZERO VOLTS OUT
WITH ZERO VOLTS IN
5V
SAMPLE
HOLD
† POLYSTYRENE CAPACITOR
LT119/319 TA8
0V
6
LT119A/LT319A
LM119/LM319
U
TYPICAL APPLICATIONS
5kHz to 2MHz V→F Converter
5V
50pF
POLYSTYRENE
3.3k
5V
5V
330Ω
TTL OUT
5kHz TO 2MHz
470Ω
10k
2N2369
2k†
20k
4
0V TO 10V
–
470Ω
1
1
0.01µF
/
2
LT119A
2
3
+
22pF
1M
5V
10k
10k
2k
220Ω
10
LT1004-1.2
9
8
–5V
–
6
1
/
2
LT119A
0.1µF
7
+
ALL DIODES 1N4148
† SET SCALE FACTOR
5
3k
LT119/319 TA9
–5V
W
W
SCHEMATIC DIAGRAM
R1
3.5k
+
V
R7
3k
R2
4k
R3
4k
R6
3k
Q9
Q4
Q8
Q3
Q7
C1
18pF
R12
13k
–
Q6
Q2
R11
13k
R10
170Ω
R4
3k
R5
3k
5.6V
5.6V
INPUTS
+
Q15
R8
2k
Q1
Q5
Q13
Q14
R9
R15
300
Q10
18k
Q22
OUTPUT
Q16
R13
600Ω
R23
4k
R22
60Ω
R20
R18
1.9k
3.6k
Q11
Q12
Q21
R16
600Ω
R14
2k
R19
250Ω
Q20
TO OTHER
SIDE
LT119A
Q19
R25
600Ω
Q17
Q18
R24
250Ω
R21
900Ω
R17
3Ω
–
V
GND
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.
7
LT119A/LT319A
LM119/LM319
U
PACKAGE DESCRIPTION
Dimension in inches (millimeters) unless otherwise noted.
H Package
10-Lead T0-5 Metal Can
0.016 – 0.021
(0.406 – 0.533)
0.335 – 0.370
(8.509 – 9.398)
DIA
36°BSC
0.305 – 0.335
(7.747 – 8.509)
0.040
(1.016)
MAX
0.027 – 0.045
(0.686 – 1.143)
0.027 – 0.034
(0.686 – 0.864)
0.050
(1.270)
MAX
0.165 – 0.185
(4.191 – 4.699)
0.230
( 5.842)
REFERENCE
PLANE
BSC
SEATING
PLANE
GAUGE
PLANE
0.500 – 0.750
(12.700 – 19.050)
0.010 – 0.045
(0.254 – 1.143)
0.110 – 0.160
(2.794 – 4.064)
INSULATING
STANDOFF
H10(5) 0592
NOTE: LEAD DIAMETER IS UNCONTROLLED BETWEEN
THE REFERENCE PLANE AND SEATING PLANE.
J Package
14-Lead Ceramic DIP
0.785
(19.939)
CORNER LEADS OPTION
(4 PLCS)
0.005
(0.127)
MIN
MAX
14
13
12
11
10
9
8
0.023 – 0.045
(0.584 – 1.143)
HALF LEAD
OPTION
0.220 – 0.310
(5.588 – 7.874)
0.025
(0.635)
RAD TYP
0.045 – 0.068
(1.143 – 1.727)
FULL LEAD
OPTION
2
3
4
5
6
1
7
0.200
(5.080)
MAX
0.300 BSC
(0.762 BSC)
0.015 – 0.060
(0.381 – 1.524)
0.008 – 0.018
(0.203 – 0.457)
0° – 15°
0.385 ± 0.025
(9.779 ± 0.635)
0.045 – 0.068
(1.143 – 1.727)
0.100 ± 0.010
(2.540 ± 0.254)
0.125
(3.175)
MIN
0.014 – 0.026
(0.360 – 0.660)
J14 0594
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP OR TIN PLATE LEADS.
N Package
14-Lead Plastic DIP
0.770*
(19.558)
MAX
0.300 – 0.325
(7.620 – 8.255)
0.045 – 0.065
(1.143 – 1.651)
0.130 ± 0.005
(3.302 ± 0.127)
14
13
12
11
10
9
8
7
0.015
(0.380)
MIN
0.260 ± 0.010*
(6.604 ± 0.254)
0.065
(1.651)
TYP
0.009 – 0.015
(0.229 – 0.381)
+0.025
1
2
3
5
6
4
0.325
–0.015
0.125
(3.175)
MIN
0.075 ± 0.015
(1.905 ± 0.381)
0.018 ± 0.003
(0.457 ± 0.076)
+0.635
8.255
(
)
–0.381
0.100 ± 0.010
(2.540 ± 0.254)
N14 0594
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm).
LT/GP 0694 5K REV A • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1994
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7487
8
●
●
(408) 432-1900 FAX: (408) 434-0507 TELEX: 499-3977
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