SINGLE SUPPLY/ LOW POWER DUAL COMPARATORS

Order this document by LM393/D LM393, LM393A, LM293, LM2903, LM2903V Low Offset Voltage Dual Comparators 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 SINGLE SUPPLY, LOW POWER DUAL COMPARATORS SEMICONDUCTOR TECHNICAL DATA • • • • • • • • • 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 8 1 N SUFFIX PLASTIC PACKAGE CASE 626 8 1 D SUFFIX PLASTIC PACKAGE CASE 751 (SO–8) Representative Schematic Diagram (Diagram shown is for 1 comparator) PIN CONNECTIONS Output A 1 2 8 VCC + Input – Input Output Inputs A Gnd 3 4 – + 7 VCC Output B Inputs B – +5 6 R2 2.1 k Q3 F1 Device Q10 Q1 Q2 R1 4.6 k Q11 Q8 Q9 Q12 Q15 Q16 LM293D LM393D LM393AN,N LM2903D LM2903N LM2903VD LM2903VN R4 2.0 k Q4 Q5 Q6 Q14 (Top View) ORDERING INFORMATION Operating Temperature Range TA = –25° to +85°C TA = 0° to +70°C TA = –40° to +105°C Package SO–8 SO–8 Plastic DIP SO–8 Plastic DIP SO–8 TA = –40° to +105°C Plastic DIP Rev 1 © Motorola, Inc. 1996 MOTOROLA ANALOG IC DEVICE DATA 1 LM393, LM393A, LM293, LM2903, LM2903V MAXIMUM RATINGS Rating Power Supply Voltage Input Differential Voltage Range Input Common Mode Voltage Range Output Short Circuit–to–Ground Output Sink Current (Note 1) Power Dissipation @ TA = 25°C Derate above 25°C Operating Ambient Temperature Range LM293 LM393, 393A LM2903 LM2903V Maximum Operating Junction Temperature LM393, 393A, 2903, LM2903V LM293 Storage Temperature Range Symbol VCC VIDR VICR ISC ISink PD 1/RθJA TA –25 to +85 0 to +70 –40 to +105 –40 to +125 TJ(max) 125 150 Tstg –65 to +150 °C °C Value +36 or ±18 36 –0.3 to +36 Continuous 20 570 5.7 Unit Vdc Vdc Vdc mA mW mW/°C °C ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, Tlow ≤ TA ≤ Thigh,* unless otherwise noted.) LM393A Characteristic Ch ii Input Offset Voltage (Note 2) TA = 25°C Tlow ≤ TA ≤ Thigh Input Offset Current TA = 25°C Tlow ≤ TA ≤ Thigh Input Bias Current (Note 3) TA = 25°C Tlow ≤ TA ≤ Thigh Input Common Mode Voltage Range (Note 4) TA = 25°C Tlow ≤ TA ≤ Thigh Voltage Gain RL ≥ 15 kΩ, VCC = 15 Vdc, TA = 25°C Large Signal Response Time 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 Input Differential Voltage (Note 6) All Vin ≥ Gnd or V– Supply (if used) Output Sink Current Vin ≥ 1.0 Vdc, Vin+ = 0 Vdc, VO ≤ 1.5 Vdc, TA = 25°C Output Saturation Voltage Vin ≥ 1.0 Vdc, Vin+ = 0 Vdc, ISink ≤ 4.0 mA, TA = 25°C Tlow ≤ TA ≤ Thigh * 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 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. Symbol S bl VIO Min – – Typ ±1.0 – ±50 – 25 – – – 200 300 Max ±2.0 4.0 Unit Ui mV IIO – – IIB – – VICR 0 0 AVOL – 50 – nA ±50 ±150 nA 250 400 V VCC –1.5 VCC –2.0 – – V/mV ns tTLH VID ISink VOL – – 6.0 1.3 – 16 – VCC – µs V mA mV – – 150 – 400 700 ]1.4 2 MOTOROLA ANALOG IC DEVICE DATA LM393, LM393A, LM293, LM2903, LM2903V ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, Tlow ≤ TA ≤ Thigh,* unless otherwise noted.) LM393A Characteristic Ch ii Output Leakage Current Vin– = 0 V, Vin+ ≥ 1.0 Vdc, VO = 5.0 Vdc, TA= 25°C Vin– = 0 V, Vin+ ≥ 1.0 Vdc, VO = 30 Vdc, Tlow ≤ TA ≤ Thigh Supply Current RL = ∞ Both Comparators, TA = 25°C RL = ∞ Both Comparators, VCC = 30 V Symbol S bl IOL – – ICC – – 0.4 1.0 1.0 2.5 0.1 – – 1.0 mA Min Typ Max Unit Ui µA ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, Tlow ≤ TA ≤ Thigh, unless otherwise noted.) LM392, LM393 Characteristic Ch ii Input Offset Voltage (Note 2) TA = 25°C Tlow ≤ TA ≤ Thigh Input Offset Current TA = 25°C Tlow ≤ TA ≤ Thigh Input Bias Current (Note 3) TA = 25°C Tlow ≤ TA ≤ Thigh Input Common Mode Voltage Range (Note 3) TA = 25°C Tlow ≤ TA ≤ Thigh Voltage Gain RL ≥ 15 kΩ, VCC = 15 Vdc, TA = 25°C Large Signal Response Time 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 Input Differential Voltage (Note 6) All Vin ≥ Gnd or V– Supply (if used) Output Sink Current Vin ≥ 1.0 Vdc, Vin+ = 0 Vdc, VO ≤ 1.5 Vdc TA = 25°C Output Saturation Voltage Vin ≥ 1.0 Vdc, Vin+ = 0, ISink ≤ 4.0 mA, TA = 25°C Tlow ≤ TA ≤ Thigh Output Leakage Current Vin– = 0 V, Vin+ ≥ 1.0 Vdc, VO = 5.0 Vdc, TA = 25°C Vin– = 0 V, Vin+ ≥ 1.0 Vdc, VO = 30 Vdc, Tlow ≤ TA ≤ Thigh Supply Current RL = ∞ Both Comparators, TA = 25°C RL = ∞ Both Comparators, VCC = 30 V * 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 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. LM2903, LM2903V Min – – – – – – 0 0 25 – Typ ±2.0 9.0 ±5.0 ±50 25 200 – – 200 300 Max ±7.0 15 nA ±50 ±200 nA 250 500 V VCC –1.5 VCC –2.0 – – V/mV ns Unit Ui mV Symbol S bl VIO Min – – Typ ±1.0 – ±5.0 – 25 – – – 200 300 Max ±5.0 9.0 ±50 ±150 250 400 VCC –1.5 VCC –2.0 – – IIO – – IIB – – VICR 0 0 AVOL – 50 – tTLH VID ISink VOL – – 6.0 1.3 – 16 – VCC – – – 6.0 1.5 – 16 – VCC – µs V mA mV – – IOL – – ICC – – 150 – 0.1 – 0.4 – 400 700 – 1000 1.0 2.5 – – – – – – – 200 0.1 – 0.4 – 400 700 nA – 1000 mA 1.0 2.5 ]1.4 MOTOROLA ANALOG IC DEVICE DATA 3 LM393, LM393A, LM293, LM2903, LM2903V LM293/393,A Figure 1. Input Bias Current versus Power Supply Voltage 80 IIB , INPUT BIAS CURRENT (nA) IIB , INPUT BIAS CURRENT (nA) 70 60 TA = –55° C 50 TA = 0° C 40 30 20 10 0 0 5.0 10 15 20 25 30 VCC, SUPPLY VOLTAGE (Vdc) 35 40 TA = +25° C TA = +125°C TA = +70° C 80 70 60 50 40 30 20 10 0 0 5.0 10 15 20 25 VCC, SUPPLY VOLTAGE (Vdc) 30 35 40 TA = +85° C TA = 0° C TA = +25° C TA = –40° C LM2903 Figure 2. Input Bias Current versus Power Supply Voltage Figure 3. Output Saturation Voltage versus Output Sink Current 10 VOL , SATURATION VOLTAGE (Vdc) VOL , SATURATION VOLTAGE (Vdc) Out of Saturation TA = +125°C 0.1 10 Figure 4. Output Saturation Voltage versus Output Sink Current Out of Saturation 1.0 1.0 TA = +85° C 0.1 TA = +25° C TA = +25° C TA = –55° C 0.01 0.01 TA = –40° C 0.1 TA = 0° C 0.001 0.01 0.1 1.0 10 100 0.001 0.01 1.0 10 100 ISink, OUTPUT SINK CURRENT (mA) ISink, OUTPUT SINK CURRENT (mA) Figure 5. Power Supply Current versus Power Supply Voltage 1.0 ICC , SUPPLY CURRENT (mA) 0.8 TA = 0° C TA = +25° C TA = +70° C 0.4 0.2 0 TA = +125°C ICC , SUPPLY CURRENT (mA) TA = –55° C 1.2 1.0 0.8 Figure 6. Power Supply Current versus Power Supply Voltage TA = –40° C TA = 0° C TA = +25° C 0.6 RL = 5.0 10 15 20 25 R 35 40 0.6 0.4 0 5.0 10 15 20 25 RL = TA = +85° C R 35 40 30 30 VCC, SUPPLY VOLTAGE (Vdc) VCC, SUPPLY VOLTAGE (Vdc) 4 MOTOROLA ANALOG IC DEVICE DATA LM393, LM393A, LM293, LM2903, LM2903V 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