LM311N

www.fairchildsemi.com LM311 Single Comparator Features • • • • • • Low input bias current : 250nA (Max) Low input offset current : 50nA (Max) Differential Input Voltage : ±30V Power supply voltage : single 5.0V supply to ±15V. Offset voltage null capability. Strobe capability. Description The LM311 series is a monolithic, low input current voltage comparator. The device is also designed to operate from dual or single supply voltage. 8-DIP 1 8-SOP 1 Internal Block Diagram Rev. 1.0.1 ©2001 Fairchild Semiconductor Corporation LM311 Schematic Diagram Absolute Maximum Ratings Parameter Total Supply Voltage Output to Negative Supply Voltage LM311 Ground to Negative voltage Differential Input Voltage Input Voltage Output Short Circuit Duration Power Dissipation Operating Temperature Range Storage Temperature Range Symbol VCC VO - VEE VEE VI(DIFF) VI PD TOPR TSTG Value 36 40 -30 30 ±15 10 500 0 ~ +70 - 65 ~ +150 Unit V V V V V sec mW °C °C 2 LM311 Electrical Characteristics (VCC = 15V, TA = 25°C, unless otherwise specified) Parameter Input Offset Voltage Input Offset Current Input Bias Current Voltage Gain Response Time Saturation Voltage Strobe “ON” Current Output Leakage Current Input Voltage Range Positive Supply Current Negative Supply Current Strobe Current Symbol VIO IIO IBIAS GV TRES IO =50mA, VI ≤ -10mV VSAT ISTR(ON) ISINK VI(R) ICC IEE ISTR VCC ≥ 4.5V, VEE =0V IO =8mA, VI ≤ -10mV, ISTR =3mA, VI ≥ 10mV VO =15V, VCC=±15V Note 1 Note 1 Note 2 RS ≤ 50KΩ Note 1 Note 1 Note 1 Conditions Min. 40 Typ. 1.0 6 100 200 200 0.75 0.23 3 0.2 Max. 7.5 10 50 70 250 300 1.5 0.4 50 7.5 -5.0 V mA nA V mA mA mA Unit mV nA nA V/mV ns -14.5 -14.7 to to 13.0 13.8 3.0 -2.2 3 Notes : 1. 0 ≤ TA ≤ +70°C 2. The response time specified is for a 100mV input step with 5mV over drive. 3 LM311 Typical Performance Characteristics Figure 1. Input Bias Current vs Temperature Figure 2. Input Offset Current vs Temperature Figure 3. Offset Voltage vs Input Resistance Figure 4. Input Bias Current vs Differential input voltage Figure 5. Common Mode Limits vs Temperature Figure 6. Output Voltage vs Differential input voltage 4 LM311 Typical Performance Characteristics (continued) Figure 7. Saturation voltage vs Current Figure 8. Supply Current vs Temperature Figure 9. Leakage Current vs Temperature Figure 10. Supply Current vs Supply Voltage Figure 11. Current Saturation Voltage Figure 12. Output Limiting Characterstics 5 LM311 Mechanical Dimensions Package 8-DIP 1.524 ±0.10 0.018 ±0.004 0.060 ±0.004 0.46 ±0.10 6.40 ±0.20 0.252 ±0.008 ( #1 #8 9.20 ±0.20 0.362 ±0.008 9.60 MAX 0.378 #4 #5 2.54 0.100 5.08 MAX 0.200 7.62 0.300 3.40 ±0.20 0.134 ±0.008 3.30 ±0.30 0.130 ±0.012 0.33 0.013 MIN 0.79 ) 0.031 0.25 –0.05 0~15° +0.10 0.010 –0.002 +0.004 6 LM311 Mechanical Dimensions (Continued) Package 8-SOP MIN 1.55 ±0.20 0.061 ±0.008 0.1~0.25 0.004~0.001 #1 #8 4.92 ±0.20 0.194 ±0.008 5.13 MAX 0.202 ( #4 #5 6.00 ±0.30 0.236 ±0.012 +0.10 0.15 -0.05 +0.004 0.006 -0.002 0.56 ) 0.022 1.80 MAX 0.071 MAX0.10 MAX0.004 3.95 ±0.20 0.156 ±0.008 5.72 0.225 0.50 ±0.20 0.020 ±0.008 0~ 8 ° 1.27 0.050 0.41 ±0.10 0.016 ±0.004 7 LM311 Ordering Information Product Number LM311N LM311M Package 8-DIP 8-SOP Operating Temperature 0 ~ +70°C 8 LM311 9 LM311 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. www.fairchildsemi.com 6/1/01 0.0m 001 Stock#DSxxxxxxxx  2001 Fairchild Semiconductor Corporation 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.