, A LM293, A - LM393, A Low Power Dual Voltage Comparators Wide single supply voltage rangr dual supplies : +2V to +36V or ±V to ±8V Very low supply current (.4mA) independent of supply voltage (mw/ comparator at +) Low input bias current: 25nA typ. Low input offset current: ±5nA typ. Low input offset voltage: ±mv typ. Input common-mode voltage range includes ground Low output saturation voltage: 25mV typ. (Io = 4mA) Differential input voltage range equal to the supply voltage TTL, DTL, ECL, MOS, CMOS compatible outputs Description These devices consist of two independent low voltage comparators designed specifically to operate from a single supply over a wide rangf voltages. Operation from split power supplies is also possible. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground even though operated from a single power supply voltage. Order Codes N DIP-8 (Plastic Package) D SO-8 (Plastic Micropackage) P TSSOP8 (Thin Shrink Small Outline Package) S Mini SO-8 (Plastic Micropackage) Pin Connections (top view) May 25 Revision 3 /3 2-7 3 + - 6 4 + 5 8 - Output 2 - Inverting input 3 - Non-inverting input 4 - - 5 - Non-inverting input 2 6 - Inverting input 2 7 - Output 2 8 - + Part Number Temperature Range Package Packaging AD/ADT SO Tubr Tape & Reel AN DIP Tube -55 C, +25 C D/DT SO Tubr Tape & Reel N DIP Tube LM293AD/LM293ADT SO Tubr Tape & Reel LM293AN DIP Tube LM293D/LM293DT SO Tubr Tape & Reel LM293N -4 C, +5 C DIP Tube LM293PT TSSOP (Thin Shrink Outline Package) Tape & Reel LM293ST Mini SO Tape & Reel LM393AD/LM393ADT SO Tubr Tape & Reel LM393D/LM393DT SO Tubr Tape & Reel LM393N DIP Tube C, +7 C TSSOP LM393PT Tape & Reel (Thin Shrink Outline Package) LM393ST Mini SO Tape & Reel LM393IYDT/IYD -4 C, +25 C SO (automotive grade level) Tubr Tape & Reel
, A - LM293, A - LM393, A Schematic Diagram ( ) Schematic Diagram ( ) V CC 3.5µA µa 3.5µA µa Non-inverting Input Inverting Input V CC V CC V O V CC 2/3
Absolute Maximum Ratings, A - LM293, A - LM393, A 2 Absolute Maximum Ratings Table. Key parameters and their absolute maximum ratings Symbol Parameter Value Unit Vcc Supply voltage ±8 or 36 V V id Differential Input Voltage ±36 V Vi Input Voltage -.3 to +36 V Output Short-circuit to Ground - note Infinite P d SO-8 TSSOP8 Power Dissipation 2 DIP-8 Mini SO-8 T stg Storage Temperature Range -65 to +5 C ) Short-circuits from thutput to + can cause excessive heating and eventual destruction. The maximum output current is approximately 2mA independent of the magnitudf +. 2) Pd is calculated with T amb = +25 C, T j = +5 C and R thja = C/W for DIP8 package = 75 C/W for SO8 package = 2 C/W for TSSOP8 package = 25 C/W for Mini SO8 package 25 7 625 58 mw Table 2. Operating Conditions Symbol Parameter Value Unit V icm Common Mode Input Voltage Range to V + CC -.5 V T oper Operating Free-Air Temperature range, A LM293, A LM393, A -55 to +25-4 to +25 to +7 C 3/3
, A - LM293, A - LM393, A Electrical Characteristics 3 Electrical Characteristics Table 3. + = +, - = V, T amb = +25 C (unless otherwise specified) Symbol Parameter V io Input Offset Voltage - note T amb = +25 C T min T amb T max I io A - LM293A LM393A - LM293 LM393 Min. Typ. Max. Min Typ. Max. 2 4 Input Offset Current T amb = +25 C 3 25 T min T amb T max 5 9 5 5 5 Input Bias Current (I + or I - ) - note 2 I ib T amb = +25 C 25 25 25 na T min T amb T max 3 4 Large Signal Voltage Gain A vd =, R L = 5kΩ, V o = V to V 5 2 5 2 V/mV I CC V icm Supply Current (all comparators) = +, no load = +3V, no load 3 Input Common Mode Voltage Range - note = 3V T amb = +25 C T min T amb T max V id Differential Input Voltage -note 4 V OL I OH I SINK tre trel ) At output switch point, V o.4v, R s = with + from to 3V, and over the full common-mode range (V to + -.). 2) The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of thutput, so no loading charge exists on the referencf input lines. 3) The input common-mode voltagf either input signal voltage should not be allowed to go negative by more than.3v. The upper end of the common-mode voltage range is + -., but either or both inputs can go to +3V without damage..4 2.5 V + CC -.5 V + CC -2.4 2.5 V + CC -.5 V + CC -2 4) The response time specified is for a mv input step with 5mV overdrive. For larger overdrive signals 3ns can bbtained. + Low Level Output Voltage V id = -V, I sink = 4mA T amb = +25 C T min T amb T max 25 4 7 High Level Output Current (V id = V) = V o = 3V T amb = +25 C. T min T amb T max + 25 4 7 Output Sink Currrent V id = V, V o =. 6 6 6 6 ma Response Time - note 5 + R L = 5.kΩ connected to.3.3 µs Large Signal Response Time R L = 5.kΩ connected to V + CC, e l = TTL, V (ref) = +.4v 3 3 ns 5) Posistive 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 -.3V (or.3v bellow the negative power supply, if used).. Unit mv na ma V V na µa 4/3
Electrical Characteristics, A - LM293, A - LM393, A Figure. Supply current vs. supply voltage Figure 4. Input current vs. supply voltage SUPPLY CURRENT (ma).8.6.4.2 T amb= -55 C Tamb = C Tamb= +25 C Tamb =+7 C Tamb = +25 C R = INPUT CURRENT (na) 8 6 4 2 V i = V 9 R = Ω i T amb = C T amb = +25 C T amb= +25 C T amb= -55 C T amb =+7 C 2 3 4 SUPPLY VOLTAGE (V) 2 3 4 SUPPLY VOLTAGE (V) Figure 2. Output saturation voltage vs. output current Figure 5. Response time for various input overdrives - negative transition SATURATION VOLTAGE (V) Out of saturation T amb = +25 C - T amb= -55 C -2 T amb= +25 C -3-2 - 2 OUTPUT SINK CURRENT (ma) INPUT VOLTAGE (mv) OUTPUT VOLTAGE (V) 6 Input overdrive : 5mV 5 4 2mV e 3 I 2 mv -5 T amb= +25 C -.5.5 2 TIME (µs) 5.kΩ Figure 3. Response time for various input overdrives - positive transition INPUT VOLTAGE (mv) OUTPUT VOLTAGE (V) 6 5 4 3 2 5 Input overdrive : mv 2mV Tamb= +25 C 5mV e I 5.kΩ.5.5 2 TIME (µs) 5/3
, A - LM293, A - LM393, A Typical Applications 4 Typical Applications Figure 6. Basic comparator Figure 7. driving TTL = 5kΩ k +V (ref) -V (ref) V O +V (ref) -V (ref) & & Figure 8. Low frequency op-amp Figure 9. Driving CMOS (= V for e I = V) 5k ~ e I k A = V.5 F 2N 2222 +V (ref) -V (ref) & Figure. Low frequency op-amp Figure. Transducer amplifier 5k Magnetic pick-up k 3k ~ e I 2M eo k A = V.5 F k 6/3
Typical Applications, A - LM293, A - LM393, A Figure 2. Low frequency op-amp with offset adjust Figure 3. Zero crossing detector (single power supply) R2 Offset Adjust M M Rs RI 5k e I ~ 2N 2222.5 F R k e I 5.k 5.k N448 2M 5.k eo k Figure 4. Two-decade high-frequency VCO Frequency control voltage input v control. F 5pF 3k 5.k. F 3k Output 5k 2k 2k /2 Output 2 =+3V +25mV V control +5V 7 Hz f khz o /2 Figure 5. Limit comparator (2V) Figure 6. Crystal controlled oscillator = V(ref) high 2RS RS k Lamp. F 2k 2k e I ~ 2RS 2N 2222 2k f = khz V(ref) low 7/3
, A - LM293, A - LM393, A Typical Applications Figure 7. Split-supply applications - zero crossing detector Figure 8. Comparator with a negative reference 5.k 5.k e I ~ e I ~ 8/3
Package Mechanical Data, A - LM293, A - LM393, A 5 Package Mechanical Data 5. DIP8 package Plastic DIP-8 MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. A 3.3.3 a.7.28 B.39.65.55.65 B.9.4.36.4 b.5.2 b.38.5.5.2 D 9.8.386 E 8.8.346 e 2.54. e3 7.62.3 e4 7.62.3 F 7..28 I 4.8.89 L 3.3.3 Z.44.6.7.63 PF 9/3
, A - LM293, A - LM393, A Package Mechanical Data 5.2 SO8 package SO-8 MECHANICAL DATA DIM. mm. inch MIN. TYP MAX. MIN. TYP. MAX. A.35.75.53.69 A..25.4. A2..65.43.65 B.33.5.3.2 C.9.25.7. D 4.8 5..89.97 E 3.8 4..5.57 e.27.5 H 5.8 6.2.228.244 h.25.5..2 L.4.27.6.5 k 8 (max.) ddd..4 623/C /3
Package Mechanical Data, A - LM293, A - LM393, A 5.3 TSSOP8 package TSSOP8 MECHANICAL DATA DIM. mm. inch MIN. TYP MAX. MIN. TYP. MAX. A.2.47 A.5.5.2.6 A2.8..5.3.39.4 b.9.3.7.2 c.9.2.4.8 D 2.9 3. 3..4.8.22 E 6.2 6.4 6.6.244.252.26 E 4.3 4.4 4.5.69.73.77 e.65.256 K 8 8 L.45.6.75.8.24.3 L.39 79397/D /3
, A - LM293, A - LM393, A Package Mechanical Data 5.4 Mini SO8 package 2/3
Revision History, A - LM293, A - LM393, A 6 Revision History Date Revision Description of Changes July 22 First Release Jan. 25 2 Class A of the product included in the datasheet. 9 May 25 3 PIPAP references inserted in the datasheet see tablrder code p Information furnished is believed to be accurate and reliable. However, STMicroelectronics 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 license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respectivwners 25 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 3/3