LM2901 LOW POWER QUAD VOLTAGE COMPARATORS. WIDE SINGLE SUPPLY VOLTAGE RANGE OR.

Size: px

Start display at page:

Download "LM2901 LOW POWER QUAD VOLTAGE COMPARATORS. WIDE SINGLE SUPPLY VOLTAGE RANGE OR."

Henry Gary Holt
5 years ago
Views:

1 LOW POWER QUAD OLTAGE COMPARATORS. WIDE SINGLE SUPPLY OLTAGE RANGE OR. DUAL SUPPLIES FOR ALL DEICES : +2 TO +36 OR ± TO ±8 ERY LOW SUPPLY CURRENT (.ma) INDEPENDENT OF SUPPLY OLTAGE (.4mW/comparator at +). LOW INPUT BIAS CURRENT : 25nA TYP LOW INPUT OFFSET CURRENT : ±5nA TYP. INPUT COMMON-MODE OLTAGE RANGE INCLUDES GROUND LOW OUTPUT SATURATION OLTAGE : 25m TYP. (I O =4mA).DIFFERENTIAL. INPUT OLTAGE RANGE EQUAL TO THE SUPPLY OLTAGE TTL, DTL, ECL, MOS, CMOS COMPATIBLE OUTPUTS N DIP4 (Plastic Package) D SO4 (Plastic Micropackage) DESCRIPTION This device consists of four independent precision voltage comparators. All these comparators were designed specifically to operate from a single power supply over a wide rangf voltages. Operation from split power supplies is also possible. These comparators also have a unique characteristic in the fact that the input common-mode voltage range includes ground even though operated from a single power supply voltage. ORDER CODES Part Temperature Package Number Range N D -4, +25 o C Example : D PIN CONNECTIONS (top view) Output 2 4 Output 3 Output 2 3 Output CC Invertinginput 4 Non-invertinginput 4 Non-invertinginput 5 Inverting input 4 Invertinginput Non-invertinginput 3 Non-invertinginput Invertinginput 3 November 995 /9

2 SCHEMATIC DIAGRAM ( LM9) CC 3.5µA µa 3.5µA µa Non-inverting Input O Inverting Input CC ABSOLUTE MAXIMUM RATINGS Symbol Parameter alue Unit Supply oltage ±8 to 36 id Differential Input oltage ±36 I Input oltage -.3 to +36 Output Short-circuit to Ground - (note ) Infinite Ptot Power Dissipation 57 mw T oper Operating Free-air Temperature Range -4, +25 o C T stg Storage Temperature Range -65, +5 o C Notes :. Short-circuit from thutput to CC + can cause excessive heating and eventual destruction. The maximum output current is approximately 2mA, independent of the magnitudf CC +. 2/9

3 ELECTRICAL CHARACTERISTICS CC + = +, CC - = GND, Tamb =25 o C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit io Input Offset oltage (note 2) Tamb = +25 o C m T min. T amb T max. 7 5 Iio Input Offset Current Tamb = +25 o C Tmin. Tamb Tmax. Iib Input Bias Current (II + or II ) - (note 3) Tamb = +25 o C Tmin. Tamb Tmax. A vd ICC Large Signal oltage Gain (CC =, RL =5kΩ, O= to ) 25 2 Supply Current (all comparators) = +, no load = +3, no load icm Input Common Mode oltage Range - (note 4) ( = 3) T amb = +25 o C T min. T amb T max CC id Differential Input oltage - (note 6) + OL Low Level Output oltage ( id = -, I sink = 4mA) T amb = +25 o C 4 T min. T amb T max IOH High Level Output Current ( id = ) (CC =O= 3) T amb = +25 o C. Tmin. Tamb Tmax. Isink Output Sink Current (id = -, O =.) 6 6 tre Response Time (note 5) (RL = connected to CC + ).3 Notes : 2. At output switch point, O.4, RS =withcc + from to 3, and over the full input common-mode range ( to CC +.). 3. The direction of the input current is out of thc due to the PNP input stage. This current is essentially constant, independent of the statf thutput, so no loading charge exists on the referencf input lines. 4. The input common-mode voltagf either input signal voltage should not be allowed to go negati ve by more than.3. The upper end of the common-mode voltage range is +., but either or both inputs can go to +3 without damage. 5. The response time specified is for a m input step with 5m overdrive. For larger overdrive signals 3ns can bbtained. 6. Positive excursions of input voltage may exceed the power supply level. As long as thther voltage remains within the common-mode range, the comparator will provide a proper output state. The low input voltage state must not be less than.3 (or.3 bellow the negative power supply, i f used). na na /m ma m na µa ma µs 3/9

4 SUPPLY CURRENT versus SUPPLY OLTAGE INPUT CURRENT versus SUPPLY OLTAGE SUPPLYCURRENT (ma) Tamb =-55 C Tamb = C T = +25 C T amb = +7 C Tamb = +25 C R = L INPUT CURRENT (na) i= 9 R = Ω i Tamb = C T amb = +25 C T amb = +25 C Tamb = -55 C T amb = +7 C SUPPLY OLTAGE () SUPPLY OLTAGE () OUTPUT SATURATION OLTAGE versus OUTPUT CURRENT RESPONSE TIME FOR ARIOUS INPUT OERDRIES - NEGATIE TRANSITION SATURATION OLTAGE() Out of saturation Tamb = +25 C - Tamb = -55 C -2 T amb = +25 C OUTPUT SINK CURRENT (ma) INPUT OLTAGE(m) OUTPUT OLTAGE() m m Input overdrive : 5m TIME (µs) T amb= +25 C RESPONSE TIME FOR ARIOUS INPUT OERDRIES - POSITIE TRANSITION INPUT OLTAGE(m) OUTPUT OLTAGE() Input overdrive : m 2m T amb= +25 C 5m TIME (µs) 5. kω 4/9

5 TYPICAL APPLICATIONS BASIC COMPARATOR DRIING CMOS = 5kΩ + (ref) - (ref) O + (ref) - (ref) & DRIING TTL LOW FREQUENCY OP AMP 5kΩ + (ref) - (ref) & & ~ kω A =.5µF LOW FREQUENCY OP AMP ( = for = ) TRANSDUCER AMPLIFIER 5kΩ Magneticpick-up ~.5µF 2N2222 2MΩ eo kω A = 5/9

6 TYPICAL APPLICATIONS (continued) TIME DELAY GENERATOR = + 5kΩ 2kΩ MΩ 3 O3 t t3 5kΩ MΩ t O t A (ref.) INPUTGATINGSIGNAL C 2.µF MΩ O2 t t2 5kΩ 3 C 2 tt t 2 t3 t4 t 5kΩ O t t LOW FREQUENCY OP AMP WITH OFFSET ADJUST Offset Adjust R2 MΩ MΩ Rs RI 5kΩ ~ 2N µF R kω eo ZERO CROSSING DETECTOR (single power supply) N448 2MΩ 6/9

7 TYPICAL APPLICATIONS (continued) TWO-DECADE HIGH-FREQUENCY CO Frequency control voltage input v control 5kΩ.µF 2kΩ 2kΩ 5pF = m control +5 7 Hz fo khz.µf /2 /2 Output Output 2 LIMIT COMPARATOR CRYSTAL CONTROLLED OSCILLATOR (2) = (ref) high 2RS RS Lamp.µF 2kΩ 2kΩ ~ (ref) low 2RS 2N kΩ f = khz SPLIT-SUPPLY APPLICATIONS ZERO CROSSING DETECTOR COMPARATOR WITH A NEGATIE REFERENCE ~ ~ 7/9

8 PACKAGE MECHANICAL DATA 4 PINS - PLASTIC DIP OR CERDIP Dimensions Millimeters Inches Min. Typ. Max. Min. Typ. Max. a.5.2 B b.5.2 b.25. D E e e F i 5..2 L Z /9

9 PACKAGE MECHANICAL DATA 4 PINS - PLASTIC MICROPACKAGE (SO) Dimensions Millimeters Inches Min. Typ. Max. Min. Typ. Max. A a a b b C.5.2 c 45 o (typ.) D E e.27.5 e F G L M S 8 o (max.) Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of usf such information nor for any infringement of patents or other rights of third parties which may result from its use. No licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. 995 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 9/9

LM193 LM293 - LM393 LOW POWER DUAL VOLTAGE COMPARATORS

LM193 LM293 - LM393 LOW POWER DUAL VOLTAGE COMPARATORS LM293 - LM393 LOW POWER DUAL VOLTAGE COMPARATORS WIDE SINGLE SUPPLY VOLTAGE RANGE OR DUAL SUPPLIES : +2V TO +36V OR ±V TO ±8V VERY LOW SUPPLY CURRENT (.4mA) INDEPENDENT OF SUPPLY VOLTAGE (mw/comparator