Electronic assignment help

talkinghead

lm393datasheet.pdf

Home >Applied Sciences homework help >Electronic assignment help

Device Operating

Temperature Range Package

��

SEMICONDUCTOR TECHNICAL DATA

SINGLE SUPPLY, LOW POWER DUAL COMPARATORS

ORDERING INFORMATION

LM293D

LM393D

TA = –25° to +85°C

TA = 0° to +70°C

SO–8

Plastic DIP

PIN CONNECTIONS

Order this document by LM393/D

D SUFFIX PLASTIC PACKAGE

CASE 751 (SO–8)

N SUFFIX PLASTIC PACKAGE

CASE 626

(Top View)

Gnd

Inputs A Inputs B

Output B

Output A VCC –

– +

LM393AN,N

LM2903D

LM2903N TA = –40° to +105°C

SO–8

Plastic DIP

SO–8

LM2903VD

LM2903VN TA = –40° to +105°C

SO–8

Plastic DIP

1MOTOROLA ANALOG IC DEVICE DATA

��

The LM393 series are dual independent precision voltage comparators capable of single or split supply operation. These devices are designed to permit a common mode range–to–ground level with single supply operation. Input offset voltage specifications as low as 2.0 mV make this device an excellent selection for many applications in consumer automotive, and industrial electronics.

• Wide Single–Supply Range: 2.0 Vdc to 36 Vdc • Split–Supply Range: ±1.0 Vdc to ±18 Vdc • Very Low Current Drain Independent of Supply Voltage: 0.4 mA • Low Input Bias Current: 25 nA • Low Input Offset Current: 5.0 nA • Low Input Offset Voltage: 2.0 mV (max) LM393A

5.0 mV (max) LM293/393

• Input Common Mode Range to Ground Level • Differential Input Voltage Range Equal to Power Supply Voltage • Output Voltage Compatible with DTL, ECL, TTL, MOS, and CMOS Logic

Levels

• ESD Clamps on the Inputs Increase the Ruggedness of the Device without Affecting Performance

Representative Schematic Diagram (Diagram shown is for 1 comparator)

VCC + Input – Input Output

Q3 R4

Q4 Q5

Q6 Q14

Q16

Q15

Q12

Q11

Q10 Q9

2.0 k

2.1 k

R1 4.6 k

 Motorola, Inc. 1996 Rev 1

LM393, LM393A, LM293, LM2903, LM2903V

2 MOTOROLA ANALOG IC DEVICE DATA

MAXIMUM RATINGS

Rating Symbol Value Unit

Power Supply Voltage VCC +36 or ±18 Vdc

Input Differential Voltage Range VIDR 36 Vdc

Input Common Mode Voltage Range VICR –0.3 to +36 Vdc

Output Short Circuit–to–Ground ISC Continuous mA Output Sink Current (Note 1) ISink 20

Power Dissipation @ TA = 25°C PD 570 mW Derate above 25°C 1/RθJA 5.7 mW/°C

Operating Ambient Temperature Range TA °C LM293 –25 to +85 LM393, 393A 0 to +70 LM2903 –40 to +105 LM2903V –40 to +125

Maximum Operating Junction Temperature TJ(max) °C LM393, 393A, 2903, LM2903V 125 LM293 150

Storage Temperature Range Tstg –65 to +150 °C

ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, Tlow ≤ TA ≤ Thigh,* unless otherwise noted.)

Ch i i S b l

LM393A

U iCharacteristic Symbol Min Typ Max Unit

Input Offset Voltage (Note 2) VIO mV TA = 25°C – ±1.0 ±2.0 Tlow ≤ TA ≤ Thigh – – 4.0

Input Offset Current IIO nA TA = 25°C – ±50 ±50 Tlow ≤ TA ≤ Thigh – – ±150

Input Bias Current (Note 3) IIB nA TA = 25°C – 25 250 Tlow ≤ TA ≤ Thigh – – 400

Input Common Mode Voltage Range (Note 4) VICR V TA = 25°C 0 – VCC –1.5 Tlow ≤ TA ≤ Thigh 0 – VCC –2.0

Voltage Gain RL ≥ 15 kΩ, VCC = 15 Vdc, TA = 25°C AVOL 50 200 – V/mV

Large Signal Response Time – – 300 – ns Vin = TTL Logic Swing, Vref = 1.4 Vdc VRL = 5.0 Vdc, RL = 5.1 kΩ, TA = 25°C

Response Time (Note 5) VRL = 5.0 Vdc, RL = 5.1 kΩ, TA = 25°C tTLH – 1.3 – µs

Input Differential Voltage (Note 6) All Vin ≥ Gnd or V– Supply (if used)

VID – – VCC V

Output Sink Current Vin ≥ 1.0 Vdc, Vin+ = 0 Vdc, VO ≤ 1.5 Vdc, TA = 25°C

ISink 6.0 16 – mA

Output Saturation Voltage VOL mV Vin ≥ 1.0 Vdc, Vin+ = 0 Vdc, ISink ≤ 4.0 mA, TA = 25°C – 150 400 Tlow ≤ TA ≤ Thigh – – 700

* Tlow = 0°C, Thigh = +70°C for LM393/393A

NOTES: 1. The maximum output current may be as high as 20 mA, independent of the magnitude of VCC, output short circuits to VCC can cause excessive heating and eventual destruction.

2. At output switch point, VO�1.4 Vdc, RS = 0 Ω with VCC from 5.0 Vdc to 30 Vdc, and over the full input common mode range (0 V to VCC = –1.5 V). 3. Due to the PNP transistor inputs, bias current will flow out of the inputs. This current is essentially constant, independent of the output state, there

fore, no loading changes will exist on the input lines. 4. Input common mode of either input should not be permitted to go more than 0.3 V negative of ground or minus supply. The upper limit of common

mode range is VCC –1.5 V. 5. Response time is specified with a 100 mV step and 5.0 mV of overdrive. With larger magnitudes of overdrive faster response times are obtainable. 6. The comparator will exhibit proper output state if one of the inputs becomes greater than VCC, the other input must remain within the common mode

range. The low input state must not be less than –0.3 V of ground or minus supply.

LM393, LM393A, LM293, LM2903, LM2903V

3MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, Tlow ≤ TA ≤ Thigh,* unless otherwise noted.)

Ch i i S b l

LM393A

U iCharacteristic Symbol Min Typ Max Unit

Output Leakage Current IOL µA Vin– = 0 V, Vin+ ≥ 1.0 Vdc, VO = 5.0 Vdc, TA= 25°C – 0.1 – Vin– = 0 V, Vin+ ≥ 1.0 Vdc, VO = 30 Vdc, Tlow ≤ TA ≤ Thigh – – 1.0

Supply Current ICC mA RL = ∞ Both Comparators, TA = 25°C – 0.4 1.0 RL = ∞ Both Comparators, VCC = 30 V – 1.0 2.5

ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, Tlow ≤ TA ≤ Thigh, unless otherwise noted.)

Ch i i S b l

LM392, LM393 LM2903, LM2903V

U iCharacteristic Symbol Min Typ Max Min Typ Max Unit

Input Offset Voltage (Note 2) VIO mV TA = 25°C – ±1.0 ±5.0 – ±2.0 ±7.0 Tlow ≤ TA ≤ Thigh – – 9.0 – 9.0 15

Input Offset Current IIO nA TA = 25°C – ±5.0 ±50 – ±5.0 ±50 Tlow ≤ TA ≤ Thigh – – ±150 – ±50 ±200

Input Bias Current (Note 3) IIB nA TA = 25°C – 25 250 – 25 250 Tlow ≤ TA ≤ Thigh – – 400 – 200 500

Input Common Mode Voltage Range (Note 3) VICR V TA = 25°C 0 – VCC –1.5 0 – VCC –1.5 Tlow ≤ TA ≤ Thigh 0 – VCC –2.0 0 – VCC –2.0

Voltage Gain AVOL 50 200 – 25 200 – V/mV RL ≥ 15 kΩ, VCC = 15 Vdc, TA = 25°C

Large Signal Response Time – – 300 – – 300 – ns Vin = TTL Logic Swing, Vref = 1.4 Vdc VRL = 5.0 Vdc, RL = 5.1 kΩ, TA = 25°C

Response Time (Note 5) tTLH – 1.3 – – 1.5 – µs VRL = 5.0 Vdc, RL = 5.1 kΩ, TA = 25°C

Input Differential Voltage (Note 6) VID – – VCC – – VCC V All Vin ≥ Gnd or V– Supply (if used)

Output Sink Current ISink 6.0 16 – 6.0 16 – mA Vin ≥ 1.0 Vdc, Vin+ = 0 Vdc, VO ≤ 1.5 Vdc TA = 25°C

Output Saturation Voltage VOL mV Vin ≥ 1.0 Vdc, Vin+ = 0, ISink ≤ 4.0 mA, TA = 25°C – 150 400 – – 400 Tlow ≤ TA ≤ Thigh – – 700 – 200 700

Output Leakage Current IOL nA Vin– = 0 V, Vin+ ≥ 1.0 Vdc, VO = 5.0 Vdc, TA = 25°C – 0.1 – – 0.1 – Vin– = 0 V, Vin+ ≥ 1.0 Vdc, VO = 30 Vdc,

Tlow ≤ TA ≤ Thigh – – 1000 – – 1000

Supply Current ICC mA RL = ∞ Both Comparators, TA = 25°C – 0.4 1.0 – 0.4 1.0 RL = ∞ Both Comparators, VCC = 30 V – – 2.5 – – 2.5

* Tlow = 0°C, Thigh = +70°C for LM393/393A LM293 Tlow = –25°C, Thigh = +85°C LM2903 Tlow = –40°C, Thigh = +105°C LM2903V Tlow = –40°C, Thigh = +125°C

NOTES: 2. At output switch point, VO�1.4 Vdc, RS = 0 Ω with VCC from 5.0 Vdc to 30 Vdc, and over the full input common mode range (0 V to VCC = –1.5 V). 3. Due to the PNP transistor inputs, bias current will flow out of the inputs. This current is essentially constant, independent of the output state, there

fore, no loading changes will exist on the input lines. 5. Response time is specified with a 100 mV step and 5.0 mV of overdrive. With larger magnitudes of overdrive faster response times are obtainable. 6. The comparator will exhibit proper output state if one of the inputs becomes greater than VCC, the other input must remain within the common mode

range. The low input state must not be less than –0.3 V of ground or minus supply.

LM393, LM393A, LM293, LM2903, LM2903V

4 MOTOROLA ANALOG IC DEVICE DATA

LM293/393,A LM2903

Figure 1. Input Bias Current versus Power Supply Voltage

Figure 2. Input Bias Current versus Power Supply Voltage

Figure 3. Output Saturation Voltage versus Output Sink Current

Figure 4. Output Saturation Voltage versus Output Sink Current

Figure 5. Power Supply Current versus Power Supply Voltage

Figure 6. Power Supply Current versus Power Supply Voltage

VCC, SUPPLY VOLTAGE (Vdc) VCC, SUPPLY VOLTAGE (Vdc)

ISink, OUTPUT SINK CURRENT (mA) ISink, OUTPUT SINK CURRENT (mA)

I ,

IN P

U T

B IA

S C

U R

R E

N T

(n A

) IB

, S

AT U

R AT

IO N

V O

LT A

G E

(V dc

) O

L I

S U

P P

LY C

U R

R E

N T

(m A

) C

0 0 5.0 10 15 20 25 30 35 40

1.0

0.1

0.01

0.001 0.01 0.1 1.0 10 100

1.0

0.8

0.6

0.4

0.2

0 5.0 10 15 20 25 30 35 40

1.2

0.4

1.0

0.1

0.01

0.001 0.01 0.1 1.0 10 100

0 5.0 10 15 20 25 30 35 40

TA = 0° C

TA = +25° C TA = +25° C

TA = +85° C

TA = –40° C

TA = +70° C

TA = +125°C

RL = �

TA = 0° C

TA = +25° C

TA = 0° C

TA = +25° C

TA = –40° C

TA = 0° C

TA = +25° C

TA = +85° C

1.0

0.8

0.6

, S

U P

P LY

C U

R R

E N

T (m

A )

C C

, S

AT U

R AT

IO N

V O

LT A

G E

(V dc

) O

L I

, IN

P U

T B

IA S

C U

R R

E N

T (n

A )

TA = +125°C

RL = �

TA = –55° C

TA = +70° C

TA = +125°C

TA = –55° C

Out of Saturation

TA = +85° C

Out of Saturation

TA = –55° C

TA = 0° C

LM393, LM393A, LM293, LM2903, LM2903V

5MOTOROLA ANALOG IC DEVICE DATA

APPLICATIONS INFORMATION

These dual comparators feature high gain, wide bandwidth characteristics. This gives the device oscillation tendencies if the outputs are capacitively coupled to the inputs via stray capacitance. This oscillation manifests itself during output transitions (VOL to VOH). To alleviate this situation, input resistors < 10 kΩ should be used.

The addition of positive feedback (< 10 mV) is also recommended. It is good design practice to ground all unused pins.

Differential input voltages may be larger than supply voltage without damaging the comparator’s inputs. Voltages more negative than –0.3 V should not be used.

Figure 7. Zero Crossing Detector (Single Supply)

Figure 8. Zero Crossing Detector (Split Supply)

Figure 9. Free–Running Square–Wave Oscillator Figure 10. Time Delay Generator

Figure 11. Comparator with Hysteresis

D1 prevents input from going negative by more than 0.6 V.

R1 + R2 = R3

R3 ≤ R5

for small error in zero crossing.

Vin

10 k

R1 8.2 k

6.8 k R2

15 k R3

+15 V

10 M

R5 220 k

R4 220 k

LM393

Vin(min) � 0.4 V peak for 1% phase distortion (∆Θ).

�

+VCC

10 k

Vin

–VEE

Vin Vin(min)

VCC

– VEE ∆Θ

LM393

–

LM393

51 k

51 k 51 k

RL 10 k

VCC

t 0

1.0 MΩ

0.001 µF –

+ LM393

VCC VCC

Vin

+ Vref

Vref

0 VC

‘‘ON’’ for t � tO + ∆t where:

∆t = RC � n ( Vref VCC

)

R RL

VC C

LM393

–

VCC

Vref R1

RS = R1 | | R2

Vth1 = Vref + (VCC –Vref) R1

R1 + R2 + RL

Vth2 = Vref – (Vref –VO Low) R1

R1 + R2

t�

–

+ LM393

�

LM393, LM393A, LM293, LM2903, LM2903V

6 MOTOROLA ANALOG IC DEVICE DATA

OUTLINE DIMENSIONS

NOTES: 1. DIMENSION L TO CENTER OF LEAD WHEN

FORMED PARALLEL. 2. PACKAGE CONTOUR OPTIONAL (ROUND OR

SQUARE CORNERS). 3. DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982. 1 4

NOTE 2 –A–

–B–

–T– SEATING PLANE

D K

MAM0.13 (0.005) B MT

DIM MIN MAX MIN MAX INCHESMILLIMETERS

A 9.40 10.16 0.370 0.400 B 6.10 6.60 0.240 0.260 C 3.94 4.45 0.155 0.175 D 0.38 0.51 0.015 0.020 F 1.02 1.78 0.040 0.070 G 2.54 BSC 0.100 BSC H 0.76 1.27 0.030 0.050 J 0.20 0.30 0.008 0.012 K 2.92 3.43 0.115 0.135 L 7.62 BSC 0.300 BSC M ––– 10 ––– 10 N 0.76 1.01 0.030 0.040

� �

D SUFFIX PLASTIC PACKAGE

CASE 751–05 (SO–8)

ISSUE R

N SUFFIX PLASTIC PACKAGE

CASE 626–05 ISSUE K

SEATING PLANE

1 4

A0.25 M C B S S

0.25 M B M

h �

X 45 �

DIM MIN MAX MILLIMETERS

A 1.35 1.75 A1 0.10 0.25 B 0.35 0.49 C 0.18 0.25 D 4.80 5.00 E

1.27 BSCe 3.80 4.00

H 5.80 6.20 h

0 7 L 0.40 1.25 �

0.25 0.50

��

NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME

Y14.5M, 1994. 2. DIMENSIONS ARE IN MILLIMETERS. 3. DIMENSION D AND E DO NOT INCLUDE MOLD

PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE MOLD

PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION.

E H

B e

BA1

C A

0.10

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.

How to reach us: USA / EUROPE / Locations Not Listed : Motorola Literature Distribution; JAPAN : Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center, P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315

MFAX: [email protected] – TOUCHTONE 602–244–6609 ASIA/PACIFIC : Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, INTERNET: http://Design–NET.com 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298

LM393/D

�� ◊