LM393-MIL [TI]
双路差分比较器;
| 型号： | LM393-MIL |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 双路差分比较器 比较器 |
| 文件： | 总14页 (文件大小：258K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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LM393-MIL
SLCS162 –JUNE 2017
LM393-MIL Dual Differential Comparators
1 Features
3 Description
These devices consist of two independent voltage
comparators that are designed to operate from a
single power supply over a wide range of voltages.
Operation from dual supplies also is possible as long
as the difference between the two supplies is 2 V to
36 V, and VCC is at least 1.5 V more positive than the
input common-mode voltage. Current drain is
independent of the supply voltage. The outputs can
be connected to other open-collector outputs to
achieve wired-AND relationships.
1
•
•
Single-Supply or Dual Supplies
Wide Range of Supply Voltage
–
–
Maximum Rating: 2 V to 36 V
Tested to 30 V
•
Low Supply-Current Drain Independent of Supply
Voltage: 0.4 mA (Typical) Per Comparator
•
•
•
Low Input Bias Current: 25 nA (Typical)
Low Input Offset Voltage: 2 mV (Typical)
Common-Mode Input Voltage Range Includes
Ground
The LM393-MIL device is characterized for operation
from 0°C to 70°C.
•
Differential Input Voltage Range Equal to
Maximum-Rated Supply Voltage: ±36 V
Device Information(1)
PART NUMBER
LM393-MILD
PACKAGE
BODY SIZE (NOM)
4.90 mm × 6.00 mm
3.00 mm x 5.00 mm
9.50 mm × 6.30 mm
6.20 mm x 7.90 mm
6.40 mm x 3.00 mm
•
•
•
Low Output Saturation Voltage
SOIC (8)
Output Compatible with TTL, MOS, and CMOS
LM393-MILDGK
LM393-MILP
VSSOP (8)
PDIP (8)
SO (8)
On Products Compliant to MIL-PRF-38535, All
Parameters are Tested Unless Otherwise Noted.
On All Other Products, Production Processing
does not Necessarily Include Testing of All
Parameters.
LM393-MILPS
LM393-MILPW
TSSOP (8)
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
2 Applications
Simplified Schematic
•
•
•
•
Chemical or Gas Sensor
Desktop PC
IN+
OUT
Motor Control: AC Induction
Weigh Scale
IN−
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
LM393-MIL
SLCS162 –JUNE 2017
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Table of Contents
7.3 Feature Description................................................... 7
7.4 Device Functional Modes.......................................... 7
Application and Implementation .......................... 8
8.1 Application Information.............................................. 8
8.2 Typical Application ................................................... 8
Power Supply Recommendations...................... 11
1
2
3
4
5
6
Features.................................................................. 1
Applications ........................................................... 1
Description ............................................................. 1
Revision History..................................................... 2
Pin Configuration and Functions......................... 3
Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information ................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Switching Characteristics.......................................... 5
6.7 Typical Characteristics.............................................. 6
Detailed Description .............................................. 7
7.1 Overview ................................................................... 7
7.2 Functional Block Diagram ......................................... 7
8
9
10 Layout................................................................... 11
10.1 Layout Guidelines ................................................. 11
10.2 Layout Example .................................................... 11
11 Device and Documentation Support ................. 12
11.1 Receiving Notification of Documentation Updates 12
11.2 Community Resources.......................................... 12
11.3 Trademarks........................................................... 12
11.4 Electrostatic Discharge Caution............................ 12
11.5 Glossary................................................................ 12
7
12 Mechanical, Packaging, and Orderable
Information ........................................................... 12
4 Revision History
DATE
REVISION
NOTES
June 2017
*
Initial release.
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5 Pin Configuration and Functions
D, DGK, P, PS, or PW
8-Pin SOIC, VSSOP, PDIP, SO, or TSSOP
Top View
1OUT
1IN−
1IN+
GND
VCC
1
2
3
4
8
7
6
5
2OUT
2IN−
2IN+
Pin Functions
PIN
SOIC, VSSOP,
PDIP, SO, and
TSSOP
I/O
DESCRIPTION
NAME
1OUT
1IN–
1IN+
GND
2IN+
2IN-
1
2
3
4
5
6
7
8
Output
Input
Input
—
Output pin of comparator 1
Negative input pin of comparator 1
Positive input pin of comparator 1
Ground
Input
Input
Output
—
Positive input pin of comparator 2
Negative input pin of comparator 2
Output pin of comparator 2
Supply Pin
2OUT
VCC
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6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)(1)
MIN
MAX
36
UNIT
V
VCC
VID
VI
Supply voltage(2)
Differential input voltage(3)
Input voltage (either input)
Output voltage
±36
36
V
–0.3
V
VO
IO
36
V
Output current
20
mA
Duration of output short circuit to ground(4)
Operating virtual-junction temperature
Storage temperature
Unlimited
TJ
300
150
°C
°C
Tstg
–65
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values, except differential voltages, are with respect to network ground.
(3) Differential voltages are at IN+ with respect to IN–.
(4) Short circuits from outputs to VCC can cause excessive heating and eventual destruction.
6.2 ESD Ratings
VALUE
1000
750
UNIT
Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1)
Charged-device model (CDM), per JEDEC specification JESD22-C101(2)
V(ESD)
Electrostatic discharge
V
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
30
UNIT
VCC
TJ
2
V
Operating junction temperature
–40
125
°C
6.4 Thermal Information
LM393-MIL
DGK
(VSSOP)
THERMAL METRIC(1)
D (SOIC)
P (PDIP)
PS (SO)
PW (TSSOP)
UNIT
8 PINS
8 PINS
8 PINS
8 PINS
8 PINS
RθJA
Junction-to-ambient thermal resistance
97
172
85
95
149
°C/W
°C/W
RθJC(top)
Junction-to-case (top) thermal
resistance
—
—
—
—
—
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
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6.5 Electrical Characteristics
at specified free-air temperature, VCC = 5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VCC = 5 V to 30 V,
TA = 25°C
2
5
VIO
Input offset voltage
VIC = VICR min,
VO = 1.4 V
mV
TA = 0°C to 70°C
9
TA = 25°C
5
50
250
IIO
Input offset current
Input bias current
VO = 1.4 V
VO = 1.4 V
nA
nA
TA = 0°C to 70°C
TA = 25°C
–25
–250
–400
IIB
TA = 0°C to 70°C
0 to
VCC – 1.5
TA = 25°C
Common-mode input-voltage
range(1)
VICR
V
0 to
VCC – 2
TA = 0°C to 70°C
VCC = 15 V,
VO = 1.4 V to 11.4 V,
Large-signal differential-voltage
amplification
AVD
TA = 25°C
50
200
0.1
V/mV
RL ≥ 15 kΩ to VCC
VOH = 5 V
VID = 1 V
VID = 1 V
TA = 25°C
50
1
nA
µA
IOH
High-level output current
VOH = 30 V
TA = 0°C to 70°C
TA = 25°C
150
400
700
VOL
IOL
Low-level output voltage
Low-level output current
Supply current
IOL = 4 mA,
VOL = 1.5 V,
RL = ∞
VID = –1 V
mV
mA
mA
TA = 0°C to 70°C
TA = 25°C
VID = –1 V
VCC = 5 V
VCC = 30 V
6
TA = 25°C
0.8
1
1
2.5
2
ICC
TA = 0°C to 70°C
TA = 25°C
VCC = 5 V to 30 V, VO = 1.4 V
VIC = VICR(min)
VIO
IIO
IIB
Input offset voltage
Input offset current
Input bias current
mV
nA
nA
TA = 0°C to 70°C
TA = 25°C
4
5
50
VO = 1.4 V
VO = 1.4 V
TA = 0°C to 70°C
TA = 25°C
150
–250
–400
–25
TA = 0°C to 70°C
TA = 25°C
0 to VCC – 1.5
0 to VCC – 2
Common-mode input-voltage
range(1)
VICR
AVD
IOH
V
TA = 0°C to 70°C
Large-signal differential-voltage
amplification
VCC = 15 V, VO = 1.4 V to 11.4 V,
TA = 25°C
50
200
0.1
V/mV
RL ≥ 15 kΩ to VCC
VOH = 5 V,
VID = 1 V
VID = 1 V
TA = 25°C
50
1
nA
µA
High-level output current
VOH = 30 V,
TA = 0°C to 70°C
TA = 25°C
150
0.8
400
700
VOL
IOL
Low-level output voltage
Low-level output current
IOL = 4 mA,
VOL = 1.5 V,
RL = ∞
VID = –1 V
mV
mA
mA
TA = 0°C to 70°C
TA = 25°C
VID = –1 V,
VCC = 5 V
VCC = 30 V
6
TA = 25°C
1
Supply current
(four comparators)
ICC
TA = 0°C to 70°C
2.5
(1) The voltage at either input or common-mode should not be allowed to go negative by more than 0.3 V. The upper end of the common-
mode voltage range is VCC+ – 1.5 V, but either or both inputs can go to 30 V without damage.
6.6 Switching Characteristics
VCC = 5 V, TA = 25°C
PARAMETER
TEST CONDITIONS
100-mV input step with 5-mV overdrive
TTL-level input step
TYP
1.3
UNIT
RL connected to 5 V through 5.1 kΩ,
Response time
µs
CL = 15 pF(1)(2)
0.3
(1) CL includes probe and jig capacitance.
(2) The response time specified is the interval between the input step function and the instant when the output crosses 1.4 V.
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6.7 Typical Characteristics
80
70
60
50
40
30
20
10
0
1.8
1.6
TA = –55°C
TA = –55°C
1.4
TA = 25°C
TA = 0°C
1.2
1
TA = 0°C
TA = 25°C
TA = 70°C
TA = 70°C
0.8
0.6
0.4
0.2
0
TA = 125°C
TA = 125°C
0
5
10
15
20
25
30
35
0
5
10
15
20
25
30
35
VCC – Supply Voltage – V
VCC – Supply Voltage – V
Figure 1. Supply Current vs Supply Voltage
Figure 2. Input Bias Current vs Supply Voltage
6
10
5
Overdrive = 5 mV
1
4
TA = 125°C
Overdrive = 20 mV
3
TA = 25°C
0.1
Overdrive = 100 mV
TA = –55°C
2
1
0
0.01
0.001
-1
0.01
0.1
1
10
100
-0.3
0
0.25 0.5 0.75
1
1.25 1.5 1.75
2
2.25
IO – Output Sink Current – mA
t – Time – µs
Figure 4. Response Time for Various Overdrives
Negative Transition
Figure 3. Output Saturation Voltage
6
5
Overdrive = 5 mV
4
Overdrive = 20 mV
Overdrive = 100 mV
3
2
1
0
-1
-0.3
0
0.25 0.5 0.75
1
1.25 1.5 1.75
2
2.25
t – Time – µs
Figure 5. Response Time for Various Overdrives
Positive Transition
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7 Detailed Description
7.1 Overview
The LM393-MIL is a dual comparator with the ability to operate up to 36 V on the supply pin. This standard
device has proven ubiquity and versatility across a wide range of applications. This is due to very wide supply
voltages range (2 V to 36 V), low Iq and fast response of the devices.
The open-drain output allows the user to configure the output logic low voltage (VOL) and can be used to enable
the comparator to be used in AND functionality.
7.2 Functional Block Diagram
V
CC
80-µA
Current Regulator
80 µA
10 µA
60 µA
10 µA
COMPONENT COUNT
Epi-FET
Diodes
1
2
2
Resistors
IN+
IN−
OUT
Transistors 30
GND
Figure 6. Schematic (Each Comparator)
7.3 Feature Description
LM393-MIL consists of a PNP darlington pair input, allowing the device to operate with very high gain and fast
response with minimal input bias current. The input Darlington pair creates a limit on the input common mode
voltage capability, allowing LM393-MIL to accurately function from ground to VCC–1.5V differential input. This
enables much head room for modern day supplies of 3.3 V and 5 V.
The output consists of an open drain NPN (pull-down or low side) transistor. The output NPN will sink current
when the positive input voltage is higher than the negative input voltage and the offset voltage. The VOL is
resistive and will scale with the output current. See Figure 3 for VOL values with respect to the output current.
7.4 Device Functional Modes
7.4.1 Voltage Comparison
The LM393-MIL operates solely as a voltage comparator, comparing the differential voltage between the positive
and negative pins and outputting a logic low or high impedance (logic high with pullup) based on the input
differential polarity.
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8 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
LM393-MIL will typically be used to compare a single signal to a reference or two signals against each other.
Many users take advantage of the open drain output to drive the comparison logic output to a logic voltage level
to an MCU or logic device. The wide supply range and high voltage capability makes LM393-MIL optimal for level
shifting to a higher or lower voltage.
8.2 Typical Application
VLOGIC
Rpullup
VLOGIC
Rpullup
VSUP
VSUP
Vin
Vin+
Vin-
+
LM393-MIL
+
LM393-MIL
Vref
CL
CL
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Figure 7. Single-Ended and Differential Comparator Configurations
8.2.1 Design Requirements
For this design example, use the parameters listed in Table 1 as the input parameters.
Table 1. Design Parameters
DESIGN PARAMETER
Input Voltage Range
EXAMPLE VALUE
0 V to Vsup-1.5 V
2 V to 36 V
2 V to 36 V
1 μA to 20 mA
100 mV
Supply Voltage
Logic Supply Voltage
Output Current (RPULLUP
Input Overdrive Voltage
Reference Voltage
)
2.5 V
Load Capacitance (CL)
15 pF
8.2.2 Detailed Design Procedure
When using LM393-MIL in a general comparator application, determine the following:
•
•
•
•
Input Voltage Range
Minimum Overdrive Voltage
Output and Drive Current
Response Time
8.2.2.1 Input Voltage Range
When choosing the input voltage range, the input common mode voltage range (VICR) must be taken in to
account. If temperature operation is above or below 25°C the VICR can range from 0 V to VCC– 2.0 V. This limits
the input voltage range to as high as VCC– 2.0 V and as low as 0 V. Operation outside of this range can yield
incorrect comparisons.
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Below is a list of input voltage situation and their outcomes:
1. When both IN- and IN+ are both within the common-mode range:
(a) If IN- is higher than IN+ and the offset voltage, the output is low and the output transistor is sinking
current
(b) If IN- is lower than IN+ and the offset voltage, the output is high impedance and the output transistor is
not conducting
2. When IN- is higher than common-mode and IN+ is within common-mode, the output is low and the output
transistor is sinking current
3. When IN+ is higher than common-mode and IN- is within common-mode, the output is high impedance and
the output transistor is not conducting
4. When IN- and IN+ are both higher than common-mode, the output is low and the output transistor is sinking
current
8.2.2.2 Minimum Overdrive Voltage
Overdrive Voltage is the differential voltage produced between the positive and negative inputs of the comparator
over the offset voltage (VIO). To make an accurate comparison the Overdrive Voltage (VOD) should be higher
than the input offset voltage (VIO). Overdrive voltage can also determine the response time of the comparator,
with the response time decreasing with increasing overdrive. Figure 8 and Figure 9 show positive and negative
response times with respect to overdrive voltage.
8.2.2.3 Output and Drive Current
Output current is determined by the load/pull-up resistance and logic/pullup voltage. The output current will
produce a output low voltage (VOL) from the comparator. In which VOL is proportional to the output current. Use
Typical Characteristics to determine VOL based on the output current.
The output current can also effect the transient response. See Response Time for more information.
8.2.2.4 Response Time
The transient response can be determined by the load capacitance (CL), load/pullup resistance (RPULLUP) and
equivalent collector-emitter resistance (RCE)..
•
•
The positive response time (τP) is approximately τP ~ RPULLUP × CL
The negative response time (τN) is approximately τN ~ RCE × CL
–
RCE can be determine by taking the slope of Typical Characteristics in its linear region at the desired
temperature, or by dividing the VOL by Iout
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8.2.3 Application Curves
The following curves were generated with 5 V on VCC and VLogic, RPULLUP = 5.1 kΩ, and 50 pF scope probe.
6
5
6
5
4
4
3
3
5mV OD
2
2
5mV OD
1
1
20mV OD
20mV OD
100mV OD
0
0
100mV OD
2.25
œ1
-0.25
œ1
0.25
0.75
1.25
1.75
œ0.25 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
Time (usec)
Time (usec)
C004
C006
Figure 8. Response Time for Various Overdrives
(Positive Transition)
Figure 9. Response Time for Various Overdrives
(Negative Transition)
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9 Power Supply Recommendations
For fast response and comparison applications with noisy or AC inputs, TI recommends to use a bypass
capacitor on the supply pin to reject any variation on the supply voltage. This variation can eat into the input
common-mode range of the comparator and create an inaccurate comparison.
10 Layout
10.1 Layout Guidelines
For accurate comparator applications without hysteresis it is important maintain a stable power supply with
minimized noise and glitches, which can affect the high level input common-mode voltage range. To achieve this,
it is best to add a bypass capacitor between the supply voltage and ground. This should be implemented on the
positive power supply and negative supply (if available). If a negative supply is not being used, do not put a
capacitor between the IC GND pin and system ground.
10.2 Layout Example
Dround
.etter
0.1mF
ë//
1
2
3
4
8
7
6
5
1hÜÇ
1Lb-
ë//
2hÜÇ
2Lb-
Lnput wesistors
/lose to device
hY
ë// or Db5
1Lb+
Db5
Dround
2Lb+
Figure 10. LM393-MIL Layout Example
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11 Device and Documentation Support
11.1 Receiving Notification of Documentation Updates
To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper
right corner, click on Alert me to register and receive a weekly digest of any product information that has
changed. For change details, review the revision history included in any revised document.
11.2 Community Resources
The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective
contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of
Use.
TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration
among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help
solve problems with fellow engineers.
Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and
contact information for technical support.
11.3 Trademarks
E2E is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
11.4 Electrostatic Discharge Caution
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
11.5 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
12 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
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PACKAGE OPTION ADDENDUM
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10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
(6)
LM393 MDC
ACTIVE
DIESALE
Y
0
400
RoHS & Green
Call TI
Level-1-NA-UNLIM
-40 to 85
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two
lines if the finish value exceeds the maximum column width.
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Addendum-Page 1
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