LT119A_1 [Linear]
Dual Comparator; 双比较器
| 型号： | LT119A_1 |
| 厂家： | 
Linear |
| 描述： | Dual Comparator |
| 文件： | 总12页 (文件大小：192K) |
| 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
DESCRIPTIO
■
Guaranteed Maximum 0.5mV Input Offset Voltage
The LT®119A 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.
■
Input Protection Diodes
■
Operates From Single 5V Supply
25mA Drive Capability
80ns Response Time
■
■
The LT119A is capable of operation over a supply range
from5Vto±15Vandcandrive25mAloadsfromeachopen
collectoroutput. AseparategroundpinallowstheLT119A
to isolate system grounds.
U
APPLICATIO S
■
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
■
, LTC and LT are registered trademarks of Linear Technology Corporation.
U
TYPICAL APPLICATIO
Response Time for Various Input Overdrives
Window Detector*
6
5
5V
10
3
4
500Ω
TTL OUTPUT
V
+
UT
2mV
5mV
4
3
1
1/2 LT319A
20mV
V
IN
–
2
2
1
V
V
V
V
= 5V FOR
V
R
V
= ±15V
= 500Ω
= 5V
= 25°C
0
OUT
S
≤ V ≤ V
IN
8
9
LT
UT
L
100
50
0
++
+
= 0V FOR
≤ V OR V ≤ V
LT
OUT
6
T
IN
IN
UT
A
1/2 LT319A
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
*
119a319afb
1
LT119A/LT319A
LM119/LM319
W W U W
ABSOLUTE AXI U RATI GS
(Note 1)
Output Short-Circuit Duration................................... 10s
Operating Temperature Range
LT119A, LM119 OBSOLETE ........ – 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
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 6) ........................... ±5V
Differential Input Current (Note 6) ........................±5mA
Input Voltage (Note 2)
U W
U
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
ORDER PART
TOP VIEW
NUMBER
1
2
3
4
5
6
7
NC
14
13
12
11
10
9
TOP VIEW
V
NC
NC
+
NC
LT119AH
LM119H
LT319AH
LM319H
–INPUT 2
OUTPUT 1
LT319AN
LM319N
10
1
4
9
OUTPUT 1
GND
+INPUT 2
+
GND
2
8
7
V
+INPUT
–INPUT
–INPUT 2
+INPUT 2
GND 2
3
+INPUT 1
GND 2
–
V
6
5
V
–INPUT 1
OUTPUT 2
8
OUTPUT 2
–
H PACKAGE
N PACKAGE
14-LEAD PLASTIC DIP
TJMAX = 150°C, θJA = 100°C/ W
LT119AJ
LM119J
LT319AJ
LM319J
10-LEAD TO-5 METAL CAN
TJMAX = 150°C, θJA = 150°C/ W, θJc = 45°C/ W
J PACKAGE 14-LEAD CERAMIC DIP
TJMAX = 150°C, θJA = 100°C/ W
OBSOLETE PACKAGE
OBSOLETE PACKAGE
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
LT119A
TYP
LM119
TYP
SYMBOL PARAMETER
CONDITIONS
MIN
MAX
MIN
MAX
UNITS
V
Input Offset Voltage
V = ±15V, V = 0
0.3
0.5
4
mV
OS
S
CM
(Note 4)
0.5
1.2
1.0
2.0
0.7
4
7
mV
mV
●
CMRR
Common Mode Rejection Ratio
Input Offset Current
90
106
20
dB
I
(Note 4)
(Note 4)
40
75
30
75
100
nA
nA
OS
●
●
I
Input Bias Current
150
500
1000
150
500
1000
nA
nA
B
A
Voltage Gain
20
40
80
10
40
80
V/mV
ns
V
Response Time
(Note 5)
119a319afb
2
LT119A/LT319A
LM119/LM319
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
LT119A
TYP
LM119
TYP
SYMBOL PARAMETER CONDITIONS
MIN
MAX
MIN
MAX
UNITS
V
Saturation Voltage
V
≤ –5mV, I = 25mA,
0.75
1.5
0.75
1.5
V
SAT
IN
+
O
–
V ≥ 4.5V, V = 0V
V
≤ –6mA, I
≤ 3.2mA
SINK
IN
T ≥ 0°C
T ≤ 0°C
0.23
0.4
0.6
0.23
0.4
0.6
V
V
A
A
Output Leakage Current
Input Voltage Range
V
≥ 5mV, V
to V– = 35V
OUT
0.2
1
2
10
0.2
1
2
10
µA
µA
IN
●
V = ±15V
V = 5V, V = 0V
●
●
–12
1
±13
12
3
–12
1
±13
12
3
V
V
S
+
–
Differential Input Voltage
Supply Current
●
±5
±5
V
mA
mA
mA
+
–
I
V = 5V, V = 0V
V = ±15V
4.3
8
4.3
8
S
Positive Supply Current
Negative Supply Current
11.5
4.5
11.5
4.5
S
V = ±15V
S
3
3
The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3)
LT319A
TYP
LM319
TYP
SYMBOL PARAMETER
CONDITIONS
V = ±15V, V = 0V
MIN
MAX
MIN
MAX
UNITS
V
Input Offset Voltage
0.3
0.5
0.5
8
mV
OS
S
CM
R ≤ 5k
1
2
2
8
10
mV
mV
S
(Note 4)
●
CMRR
Common Mode Rejection Ratio
Input Offset Current
90
106
30
dB
I
(Note 4)
(Note 4)
40
60
80
200
300
nA
nA
OS
●
●
I
Input Bias Current
150
500
1000
250
1000
1200
nA
nA
B
A
V
Voltage Gain
20
40
80
8
1
40
80
V/mV
ns
V
Response Time
Saturation Voltage
(Note 5)
V
≤ –10mV, I
= 25mA
0.75
0.3
1.5
0.4
0.75
0.3
1.5
0.4
V
SAT
IN
+
SINK
–
V ≥ 4.5V, V = 0V,
V
●
V
≤ –10mV, I
≤ 3.2mA
IN
SINK
–
Output Leakage Current
Input Voltage Range
V
≥ 10mV, V
to V = 35V
0.2
10
0.2
10
µA
IN
OUT
V = ±15V
●
●
±13
±13
V
V
S
+
–
V = 5V, V = 0V
1
3
3
Differential Input Voltage
Supply Current
●
±5
±5
V
mA
mA
mA
+
–
I
V = 5V, V = 0V
V = ±15V
4.3
8
4.3
8
S
Positive Supply Current
Negative Supply Current
12.5
5
12.5
5
S
V = ±15V
S
3
3
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: For supply voltages less than ±15V, the maximum input voltage is
equal to the supply voltage.
Note 4: 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.
Note 5: Response time specified is for a 100mV input step with 5mV
overdrive.
Note 6: 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
Note 3: Unless otherwise noted, supply voltage equals ±15V and
V
= 0V, T = 25°C. The ground pin is grounded. Note that the maximum
CM
A
+
voltage 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.
with external resistance.
119a319afb
3
LT119A/LT319A
LM119/LM319
U W
TYPICAL PERFOR A CE 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
V
=
15V
V
= 36V
S
S
V = 15V
S
= 25°C
R
= 1.4k
A
L
T
= 25°C
A
BIAS
V
= 5V
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
Response Time for Various
Input Overdrives
Input Overdrives
6
5
6
6
V
S
= 5V
= 500Ω
= 5V
V
= ±15V
= 500Ω
= 5V
= 25°C
S
5
5
4
3
2
1
0
0
R
R
V
T
L
L
2mV
5mV
++
++
V
T
2mV
4
4
= 25°C
A
A
3
3
2
20mV
5mV
5mV
2
2mV
20mV
20mV
1
1
V
S
= 5V
0
0
R
V
= 500Ω
= 5V
= 25°C
L
100
50
0
0
++
–50
–100
–50
T
A
–100
300
300
350
300
350
0
50 100 150 200 250
TIME (ns)
350
0
50
100 150 200 250
TIME (ns)
0
50 100 150 200 250
TIME (ns)
LT119/319 G5
LT119/319 G6
LT119/319 G4
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
25
20
15
10
5
12
10
8
T
= 25°C
J
T
J
= 25°C
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
5 10
OUTPUT VOLTAGE (V)
15
0
10
20
0
0.2
0.4
0.6
0.8
1.0
OUTPUT VOLTAGE (V)
LT119/319 G8
LT119/319 G9
LT119/319 G7
119a319afb
4
LT119A/LT319A
LM119/LM319
W
U
TYPICAL PERFORMANCE CHARACTERISTICS
Common Mode Limits
Supply Current
+
V
12
+
–
V
= 5V, V = 0V
–0.4
–0.8
–1.2
–1.6
–2.0
1.2
10
8
POSITIVE SUPPLY = 15V
V
= ±15V
S
REFERRED TO SUPPLY VOLTAGES
6
4
–
POSITIVE SUPPLY = 5V, V = 0V
+
–
0.8
V
= ±15V, V = 5V, V = 0V
S
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 APPLICATIO S
Relay Driver
28V
5V
11
10
9
–
7
INPUTS
1/2 LT319A
8
+
35V
6
LT119/319 TA3
High Noise Immunity 60Hz Sync Circuit
5V
68k
3.3k
60Hz
1N4148
20k
10
INPUT
–
11
10V
P-P
7
(TYP)
OUTPUT
1/2 LT319A
0.15µF
9
8
+
6
10k
10k
LT119/319 TA4
119a319afb
5
LT119A/LT319A
LM119/LM319
U
TYPICAL APPLICATIO S
Voltage Controlled Crystal Oscillator
With 100ppm Trim Range
AT CUT
18pF, 100kHz
100k
10k
INPUT
0V TO 5V
5V
MV1405*
5V
11
1k
5
4
–
12
9
1k
1000pF
1/2 LT319A
+
7
1/2 LT319A
OUTPUT
+
10
3
8
–
39k
20k
20k
6
3k
5V
2k
LT119/319 TA5
Voltage Controlled High Speed One Shot
5V
100pF
10
11
680Ω
–
7
1/2 LT319A
7408
2k
9
+
5V
INPUT
PULSE
8
5V
OUTPUT
0µs TO 1µs
(20ns MINIMUM)
10k
100pF
1k
4
680Ω
+
12
1/2 LT319A
2k
120pF
5
3
–
300pF
0V TO 1V
INPUT
6
LT119/319 TA6
LM385-1.2
5V
119a319afb
6
LT119A/LT319A
LM119/LM319
U
TYPICAL APPLICATIO S
10-Bit Serial Output A/D Converter
5V
INPUT
0V TO 3.5V
10k*
5V
20k*
LT1004-1.2
4.7k
1N4148
5V
1k
10k
5
4
11
1/2 LT119A
–
74C04
12
9
PN4250
PN4250
+
3
7
1000µF†
+
1/2 LT119A
10
6
–
DATA
OUT
8
–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
1N4148
+
3k
100Ω
4.7k
10µF
2N2907
15V
240Ω
15V
2N4931
2N2907
V
OUT
11
12k
3k
5
4
2pF
10pF
1k
0.003µF†
3.3k
–15V
–
9k
1k
10k
TO 8pF*
10
12
–
1/2 LT119A
3
7
2N2907
+
1/2 LT119A
9
8
+
6
20k
2N2222
9k
15V
D
INPUT
1N4148
3k
–15V
V
Q
CLK
S
74C74
PRESET
CLR
*TRIM FOR ZERO VOLTS OUT
WITH ZERO VOLTS IN
5V
SAMPLE
HOLD
† POLYSTYRENE CAPACITOR
LT119/319 TA8
0V
119a319afb
7
LT119A/LT319A
LM119/LM319
W
W
SCHEMATIC DIAGRAM
R1
3.5k
+
V
R7
3k
R2
4k
R3
4k
R6
3k
Q9
Q4
Q8
Q3
Q7
C1
R12
13k
18pF
–
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
R13
600Ω
R23
4k
R22
60Ω
R20
R18
1.9k
3.6k
Q11
Q16
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
119a319afb
8
LT119A/LT319A
LM119/LM319
U
PACKAGE DESCRIPTIO
H Package
10-Lead TO-5 Metal Can
(Reference LTC DWG # 05-08-1322)
.335 – .370
(8.509 – 9.398)
DIA
.305 – .335
(7.747 – 8.509)
.040
.050
(1.270)
MAX
(1.016)
MAX
.165 – .185
(4.191 – 4.699)
REFERENCE
PLANE
SEATING
PLANE
GAUGE
PLANE
.500 – .750
(12.700 – 19.050)
.010 – .045*
(0.254 – 1.143)
.016 – .021**
(0.406 – 0.533)
.027 – .045
(0.686 – 1.143)
36°BSC
PIN 1
.028 – .034
(0.711 – 0.864)
.230
( 5.842)
TYP
.110 – .160
(2.794 – 4.064)
INSULATING
STANDOFF
*LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND THE SEATING PLANE
.016 – .024
(0.406 – 0.610)
**FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS
H10(TO-5) 0801
OBSOLETE PACKAGE
119a319afb
9
LT119A/LT319A
LM119/LM319
U
PACKAGE DESCRIPTIO
J Package
14-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
.785
(19.939)
MAX
.005
(0.127)
MIN
14
13
12
11
10
9
8
.220 – .310
.025
(5.588 – 7.874)
(0.635)
RAD TYP
2
3
4
5
6
1
7
.200
(5.080)
MAX
.300 BSC
(7.62 BSC)
.015 – .060
(0.381 – 1.524)
.008 – .018
(0.203 – 0.457)
0° – 15°
.045 – .065
(1.143 – 1.651)
.100
(2.54)
BSC
.125
(3.175)
MIN
.014 – .026
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE
OR TIN PLATE LEADS
(0.360 – 0.660)
J14 0801
OBSOLETE PACKAGE
119a319afb
10
LT119A/LT319A
LM119/LM319
U
PACKAGE DESCRIPTIO
N Package
14-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
.770*
(19.558)
MAX
14
13
12
11
10
9
8
.255 ± .015*
(6.477 ± 0.381)
1
2
3
5
6
7
4
.300 – .325
(7.620 – 8.255)
.045 – .065
(1.143 – 1.651)
.130 ± .005
(3.302 ± 0.127)
.020
(0.508)
MIN
.065
(1.651)
TYP
.008 – .015
(0.203 – 0.381)
+.035
.325
.005
(0.125)
MIN
–.015
.120
(3.048)
MIN
.018 ± .003
(0.457 ± 0.076)
.100
(2.54)
BSC
+0.889
8.255
(
)
–0.381
NOTE:
INCHES
MILLIMETERS
N14 1002
1. DIMENSIONS ARE
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
119a319afb
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.
11
LT119A/LT319A
LM119/LM319
U
TYPICAL APPLICATIO
5kHz to 2MHz V→F Converter
5V
50pF
POLYSTYRENE
3.3k
5V
5V
330Ω
TTL OUT
5kHz TO 2MHz
470Ω
10k
2N2369
2k†
20k
5
0V TO 10V
–
470Ω
12
0.01µF 1/2 LT119A
4
+
22pF
1M
5V
3
10k
10k
2k
220Ω
11
LT1004-1.2
7
10
9
–5V
–
1/2 LT119A
8
0.1µF
+
ALL DIODES 1N4148
† SET SCALE FACTOR
6
3k
LT119/319 TA9
–5V
119a319afb
LT/TP 1102 1K REV B • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
12
●
●
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
LINEAR TECHNOLOGY CORPORATION 1994
相关型号：
LT12001/4S513JT26
RESISTOR, TEMPERATURE DEPENDENT, PTC, 51000ohm, THROUGH HOLE MOUNT, AXIAL LEADED
KOA
LT12001/6S101JT26
RESISTOR, TEMPERATURE DEPENDENT, PTC, 100ohm, THROUGH HOLE MOUNT, AXIAL LEADED
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LT12001/6S273JT26
RESISTOR, TEMPERATURE DEPENDENT, PTC, 27000ohm, THROUGH HOLE MOUNT, AXIAL LEADED
KOA
LT1201CN8
IC DUAL OP-AMP, 2000 uV OFFSET-MAX, 12 MHz BAND WIDTH, PDIP8, PLASTIC, DIP-8, Operational Amplifier
Linear
LT1201CS8
IC DUAL OP-AMP, 2000 uV OFFSET-MAX, 12 MHz BAND WIDTH, PDSO8, 0.150 INCH, PLASTIC, SO-8, Operational Amplifier
Linear
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