LM2901 Low Power Quad Voltage Comparator ■ Wide single supply voltage range or dual supplies for all devices: +2V to +36V or ±1V to ±18V ■ Very low supply current (1.1mA) independent of supply voltage (1.4mW/comparator at +5V) ■ Low input bias current: 25nA typ. ■ Low input offset current: ±5nA typ. ■ Input common-mode voltage range includes ground ■ Low output saturation voltage: 250mV typ. (IO = 4mA) ■ Differential input voltage range equal to the supply voltage ■ N DIP14 (Plastic Package) D SO-14 (Plastic Micropackage) TTL, DTL, ECL, MOS, CMOS compatible outputs Description This device consists of four independent precision voltage comparators. All these comparators were designed specifically to operate from a single supply over a wide range of 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 P TSSOP14 (Thin Shrink Small Outline Package) . Order Codes Part Number Temperature Range Package Packaging Marking DIP14 Tube LM2901N SO-14 Tube or Tape & Reel 2901 LM2901PT TSSOP14 (Thin Shrink Outline Package) Tape & Reel 2901 LM2901YD/YDT SO-14 (automotive grade level) Tube or Tape & Reel 2901Y LM2901N LM2901D/LM2901DT -40°C, +125°C July 2005 Rev 2 1/12 www.st.com 12 Absolute Maximum Ratings 1 LM2901 Absolute Maximum Ratings Table 1. Key parameters and their absolute maximum ratings Symbol Parameter VCC Supply Voltage VID Differential Input Voltage VI Input Voltage Value Unit ±18 to 36 V ±36 V -0.3 to +36 V Output Short-circuit to Ground (1) Pd Power Dissipation (2) DIP14 SO-14 TSSOP14 1500 830 710 TJ Junction Temperature +150 °C Storage Temperature Range -65 to +150 °C HBM: Human Body Model(3) 1.5 Kv MM: Machine Model(4) 100 V CDM: Charged Device Model 1500 V Tstg ESD mW + 1. Short-circuit from the output to V cc can cause excessive heating and eventual destruction. The maximum output current is approximately 20mA, independent of the magnitude of Vcc+ 2. Pd is calculated with Tamb = +25°C, Tj = +150°C and Rthja = 80°C/W for DIP14 package Rthja = 150°C/W for SO-14 package Rthja = 175°C/W for TSSOP14 package 3. Human body model, 100pF discharged through a 1.5kΩ resistor into pin of device. 4. Machine model ESD, a 200pF cap is charged to the specified voltage, then discharged directly into the IC with no external series resistor (internal resistor < 5Ω), into pin to pin of device. Table 2. Operating conditions Symbol 2/12 Parameter VCC Supply Voltage Vicm Common Mode Input Voltage Range Toper Operating Free-Air Temperature range Value Unit 2 to 32 ±1 to ±16 V 0 to (V CC+ -1.5) V -40 to +125 °C LM2901 2 Typical Application Schematics Typical Application Schematics Figure 1. Schematic diagram (1/4 LM2901) Figure 2. Pin connection (top view) Output 2 1 14 Output 3 Output 1 2 13 Output 4 + CC 3 V 12 V CC 4 11 Non-inverting input 4 Non-inverting input 1 5 10 Inverting input 4 Inverting input 2 6 9 Non-inverting input 3 Non-inverting input 2 7 8 Inverting input 3 Inverting input 1 3/12 Electrical Characteristics 3 LM2901 Electrical Characteristics Table 3. VCC+ = 5V, Vcc- = GND, Tamb = 25°C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit Vio Input Offset Voltage (1) Tamb = +25°C Tmin ≤ Tamb ≤ T max. 1 7 15 mV Iio Input Offset Current Tamb = +25°C Tmin ≤ Tamb ≤ T max. 5 50 150 nA Iib Input Bias Current (II+ or II-) (2) Tamb = 2.5V Tmin ≤ Tamb ≤ T max. 25 250 400 nA Avd Large Signal Voltage Gain (Vcc = 15V,RL=15kΩ, Vo=1 to 11V) Icc Supply Current (all comparators)) VCC = +5V, no load VCC = +30V, no load Vicm Input Common Mode Voltage Range (Vcc= 30V)(3) Tamb = +25°C Tmin ≤ Tamb ≤ T max. Vid Differential Input Voltage(4) VOL Low Level Output Voltage Vid = -1V, Isink = 4mA Tamb = +25°C Tmin ≤ Tamb ≤ T max Ioh High Level Output Current (VCC =Vo =30V, Vid = 1V) Tamb = +25°C Tmin ≤ Tamb ≤ T max Isink tre V/mV 200 1.1 1.3 0 0 2 2.5 mA VCC +-1.5 V VCC+-2 VCC+ 250 400 700 V mV 0.1 nA µA 1 Output Sink Current (V id = -1V,Vo = 1.5V) Small Signal Response Time 25 6 16 mA 1.3 µs (5) (RL = 5.1kΩ connected to VCC+ Large Signal Response Time(6) trel 1. TTL Input (Vref = +1.4 V, RL=5.1kΩ to VCC+) Output Signal at 50% of final value Output Signal at 95% of final value 500 1 ns µs At output switch point, VO ≈ 1.4V, RS = 0 with VCC+ from 5V to 30V, and over the full input common-mode range (0V to VCC + –1.5V). 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 the output, so no loading charge exists on the reference of input lines 3. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the common-mode voltage range is VCC + –1.5V, but either or both inputs can go to +30V without damage. 4. The response time specified is for a 100mV input step with 5mV overdrive. 5. Positive excursions of input voltage may exceed the power supply level. As long as the other 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 –0.3V (or 0.3V bellow the negative power supply, if used) 6. Maximum values are guaranteed by design. 4/12 LM2901 Electrical Characteristics Figure 3. Supply current versus supply voltage Figure 4. Input current versus supply voltage Figure 5. Output saturation voltage versus output current Figure 6. Response time for various input overdrives - negative transition Figure 7. Response time for various input overdrives - positive transition 5/12 Typical Applications 4 LM2901 Typical Applications Figure 8. Basic comparator Figure 9. Driving CMOS Figure 10. Driving TTL Figure 11. Low frequency op-amp Figure 12. Low frequency op-amp Figure 13. Transducer amplifier 6/12 LM2901 Typical Applications Figure 14. Low frequency op- amp with offset adjust Figure 15. Zero crossing detector (single power supply) Figure 16. Limit comparator Figure 17. Split-supply applications - zero crossing detector Figure 18. Crystal controlled oscillator Figure 19. Comparator with a negative reference 7/12 Typical Applications Figure 20. Time delay generator Figure 21. Two-decade high-frequency VCO 8/12 LM2901 LM2901 PACKAGE MECHANICAL DATA 5 PACKAGE MECHANICAL DATA 5.1 DIP14 package Plastic DIP-14 MECHANICAL DATA mm. inch DIM. MIN. a1 0.51 B 1.39 TYP MAX. MIN. TYP. MAX. 0.020 1.65 0.055 0.065 b 0.5 0.020 b1 0.25 0.010 D 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 15.24 0.600 F 7.1 0.280 I 5.1 0.201 L Z 3.3 1.27 0.130 2.54 0.050 0.100 P001A 9/12 PACKAGE MECHANICAL DATA 5.2 LM2901 SO-14 package SO-14 MECHANICAL DATA DIM. mm. MIN. TYP A a1 inch MAX. MIN. TYP. 1.75 0.1 0.2 b 0.35 b1 0.19 a2 0.068 0.003 0.007 0.46 0.013 0.018 0.25 0.007 1.65 C MAX. 0.064 0.5 0.010 0.019 c1 45˚ (typ.) D 8.55 E 5.8 e 8.75 0.336 6.2 0.228 1.27 e3 0.344 0.244 0.050 7.62 0.300 F 3.8 4.0 0.149 G 4.6 5.3 0.181 0.208 L 0.5 1.27 0.019 0.050 M S 0.68 0.157 0.026 8 ˚ (max.) PO13G 10/12 LM2901 5.3 PACKAGE MECHANICAL DATA TSSOP14 package TSSOP14 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. MAX. 1.2 A1 0.05 A2 0.8 b 0.047 0.15 0.002 0.004 0.006 1.05 0.031 0.039 0.041 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0089 D 4.9 5 5.1 0.193 0.197 0.201 E 6.2 6.4 6.6 0.244 0.252 0.260 E1 4.3 4.4 4.48 0.169 0.173 0.176 1 e 0.65 BSC K 0˚ L 0.45 A 0.60 0.0256 BSC 8˚ 0˚ 0.75 0.018 8˚ 0.024 0.030 A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 0080337D 11/12 Revision History 6 LM2901 Revision History Date Revision Changes Jan. 2002 1 Initial release. July 2005 2 1 - PPAP references inserted in the datasheet see Table : Order Codes on page 1 . 2 - ESD protection inserted in Table 1 on page 2. Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of 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 respective owners © 2005 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 12/12