Philips Semiconductors Linear Products Product specification LM111/211/311/ LM311B Voltage comparator DESCRIPTION PIN CONFIGURATION The LM111 series are voltage comparators that have input currents approximately a hundred times lower than devices like the A710. They are designed to operate over a wider range of supply voltages; from standard 15V op amp supplies down to a single 3V supply. Their output is compatible with RTL, DTL, and TTL as well as MOS circuits. Further, they can drive lamps or relays, switching voltages up to 50V at currents as high as 50mA. D, FE, N PACKAGES Both the inputs and the outputs of the LM111 series can be isolated from system ground, and the output can drive loads referred to ground, the positive supply, or the negative supply. Offset balancing and strobe capability are provided and outputs can be wire-ORed. Although slower than the A710 (200ns response time vs 40ns), the devices are also much less prone to spurious oscillations. The LM111 series has the same pin configuration as the A710 series. GND 1 INPUT 2 INPUT 3 V- 4 + - 8 V+ 7 OUTPUT 6 BAL/STROBE 5 BALANCE APPLICATIONS * Precision squarer * Positive/negative peak detector * Low voltage adjustable reference supply * Switching power amplifier FEATURES * Operates from single 3V supply (LM311B) * Maximum input bias current: 150nA (LM311--250nA) * Maximum offset current: 20nA (LM311--50nA) * Differential input voltage range: 30V * Power consumption: 135mW at 15V * High sensitivity--200V/mV * Zero crossing detector ORDERING INFORMATION DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG # 0404B 8-Pin Plastic Dual In-Line Package (DIP) -55C to +125C LM111N 8-Pin Plastic Dual In-Line Package (DIP) -25C to +85C LM211N 0404B 8-Pin Plastic Small Outline Package (SO) 0 to +70C LM311D 0174C 8-Pin Plastic Dual In-Line Package (DIP) 0 to +70C LM311N 0404B 8-Pin Plastic Small Outline Package (SO) -25C to +85C LM211D 0174C 8-Pin Ceramic Dual In-Line Package (CERDIP) -55C to +125C LM111FE 0580A 8-Pin Plastic Small Outline Package (SO) 0 to +70C LM311BD 0174C 8-Pin Plastic Dual In-Line Package (DIP) 0 to +70C LM311BN 0404B August 31, 1994 273 853-0927 13721 Philips Semiconductors Linear Products Product specification LM111/211/311/ LM311B Voltage comparator EQUIVALENT SCHEMATIC BALANCE/ STROBE BALANCE R3 300 R1 1.3K R4 300 V+ R2 1.3K R9 600 R8 750 Q8 Q7 Q10 Q20 R5 70 Q11 Q12 R6 1.2K Q5 R7 1.2K Q13 Q19 R10 4K Q8 OUTPUT Q14 Q3 Q1 D1 5V Q4 D2 5V Q18 Q9 R17 60 R15 400 R11 130 Q2 Q15 INPUTS R15 450 Q23 R12 600 Q22 Q2 Q18 R19 250 R18 200 R14 2K Q17 R13 4 V- ABSOLUTE MAXIMUM RATINGS SYMBOL VS PARAMETER RATING UNIT 36 V LM111/LM211 50 V LM311/LM311B 40 V Ground to negative supply voltage 30 V Total supply voltage Output to negative supply voltage: Differential input voltage 30 V VIN Input voltage1 15 V PD MAX Maximum power dissipation, F package 810 mW N package 1190 mW D package 780 mW 10 sec LM111 -55 to +125 C LM211 -25 to +85 C 0 to +70 C TA=25C (still-air)2 I Output short-circuit duration TA Operating ambient temperature range LM311/LM311B TSTG Storage temperature range -65 to +150 C TSOLD Lead soldering temperature (10sec max) 300 C NOTES: 1. This rating applies for 15V supplies. The positive input voltage limit is 30V above the negative supply. The negative input voltage limit is equal to the negative supply voltage or 30V below the positive supply, whichever is less. 2. Derate above 25C, at the following rates: F package at 6.4mW/C; N package at 9.5mW/C; D package at 6.2m/WC August 31, 1994 274 Philips Semiconductors Linear Products Product specification LM111/211/311/ LM311B Voltage comparator DC ELECTRICAL CHARACTERISTICS1, 2, 3, 6 Over temperature range unless otherwise specified. SYMBOL PARAMETER TEST CONDITIONS LM111/LM211 Min Typ Max LM311 Min LM311B Typ Max Min Typ Max UNIT VOS Input offset voltage3 TA=25C, RS50k 0.7 3.0 2.0 7.5 2.0 7.5 mV IOS Input offset current3 TA=25C 4.0 10 6.0 50 6 25 nA IBIAS Input bias current TA=25C 60 100 100 250 100 200 AV Voltage gain TA=25C 200 200 200 V/mV 200 500 ns Response time4 VSAT Saturation voltage IBAL/STR Strobe on current TA=25C 200 LM111/211 VIN-5mV, IOUT=50mA LM311/B VIN-10mV, IOUT=50mA TA=25C 0.75 TA=25C 3.0 LM111/211 VIN5mV, VOUT=35V LM311/B VIN10mV, VOUT=35V TA=25C, ISTROBE=3mA (V- = VGND = -5V) 0.2 1.5 1.5 Output leakage current6 VOS Input offset voltage3 4.0 IOS Input offset current3 20 IBIAS Input bias current 150 10 13.8 to -14.7 13.0 0.2 50 mA nA 10 10 mV 70 50 nA 300 250 nA V+ -1.5 V 13.8 to -14.7 13.0 0.23 0.4 0.23 0.4 V 1.6 3.5 mA VOL Saturation voltage6 V+ 4.5V, V- = 0 LM111/211 VIN-6mV, ISINK8mA LM311/B VIN-10mV, ISINK8mA 0.23 0.4 IOH Output leakage current VIN5mV, VOUT=35V 0.1 0.5 ICC Positive supply current TA=25C 5.1 6.0 5.1 7.5 IEE Negative supply voltage TA=25C 4.1 5.0 4.1 5.0 -14.5 0.2 V 50 V=15V (Pin 7 may go to 5V) -14.5 1.5 3.0 Input voltage range VIN 0.75 3.0 ILEAKAGE RS50k 0.75 nA V- +0.5 A mA NOTES: 1. This rating applies for 15V supplies. The positive input voltage limit is 30V above the negative supply. The negative input voltage limit is equal to the negative supply voltage or 30V below the positive supply, whichever is less. 2. These specifications apply for VS=15V and 0C < TA < 70C unless otherwise specified. With the LM211, however, all temperature specifications are limited to -25C TA 85C and for the LM111 is limited to -55C TA < 125C. The offset voltage, offset current, and bias current specifications apply for any supply voltage from a single 5V supply up to 15V supplies. 3. The offset voltages and offset currents given are the maximum values required to drive the output within a volt of either supply with 1mA load. Thus, these parameters define an error band and take into account the worst case effects of voltage gain and input impedance. 4. The response time specified is for a 100mV input step with 5mV over-drive. 5. Do not short the strobe pin to ground; it should be current driven at 3mA to 5mA. 6. LM311B, all parameters are at V+ = 3V 10%, V- = GND = 0V. August 31, 1994 275 Philips Semiconductors Linear Products Product specification LM111/211/311/ LM311B Voltage comparator TYPICAL APPLICATIONS V+ 5V BAL R1 5 3K 2 8 LM311 3 - R1 4.5K V+ = 5V 6 + INPUT R2 3K 1 TO MOS LOGIC 7 R3 10K 4 R3 2K 2 8 + 7 LM311 R2 1K V+ = 5V 3 1 - TTL OUTPUT R3 82K R1 240K R5 1K 2 + 8 INPUT 7 LM311 4 3 C1 1 - 4 R2 47K V- = 10V R4 82K MAGNETIC PICKUP * Values shown are for a 0 to 30V logic swing and a 15V threshold. ** May be added to control speed and reduce susceptibility to noise spikes. Zero Detector Driving MOS Logic August 31, 1994 Detector for Magnetic Transducer 276 TTL Interface with High Level Logic TO TTL OUTPUT