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| 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 TTL, DTL, ECL, MOS, CMOS compatible outputs D SO-14 (Plastic Micropackage) N DIP14 (Plastic Package) 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 LM2901N LM2901D/LM2901DT -40C, +125C LM2901PT LM2901YD/YDT Temperature Range Package DIP14 SO-14 TSSOP14 (Thin Shrink Outline Package) SO-14 (automotive grade level) Packaging Tube Tube or Tape & Reel Tape & Reel Tube or Tape & Reel Marking LM2901N 2901 2901 2901Y July 2005 Rev 2 1/12 www.st.com 12 Absolute Maximum Ratings LM2901 1 Absolute Maximum Ratings Table 1. Symbol VCC VID VI Supply Voltage Differential Input Voltage Input Voltage Output Short-circuit to Ground (1) Power Dissipation (2) DIP14 SO-14 TSSOP14 Junction Temperature Storage Temperature Range HBM: Human Body Model(3) ESD MM: Machine Model(4) CDM: Charged Device Model + Key parameters and their absolute maximum ratings Parameter Value 18 to 36 36 -0.3 to +36 Unit V V V Pd 1500 830 710 +150 -65 to +150 1.5 100 1500 mW TJ Tstg C C Kv V V 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 = +25C, Tj = +150C and Rthja = 80C/W for DIP14 package Rthja = 150C/W for SO-14 package Rthja = 175C/W for TSSOP14 package 3. Human body model, 100pF discharged through a 1.5k 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 < 5), into pin to pin of device. Table 2. Symbol VCC Vicm Toper Operating conditions Parameter Supply Voltage Common Mode Input Voltage Range Operating Free-Air Temperature range Value 2 to 32 1 to 16 0 to (V CC+ -1.5) -40 to +125 Unit V V C 2/12 LM2901 Typical Application Schematics 2 Typical Application Schematics Figure 1. Schematic diagram (1/4 LM2901) Figure 2. Pin connection (top view) Output 2 1 Output 1 2 V + CC 3 4 5 6 7 14 13 12 11 10 9 8 Output 3 Output 4 V CC Non-inverting input 4 Inverting input 4 Non-inverting input 3 Inverting input 3 Inverting input 1 Non-inverting input 1 Inverting input 2 Non-inverting input 2 3/12 Electrical Characteristics LM2901 3 Electrical Characteristics Table 3. Symbol Vio VCC+ = 5V, Vcc- = GND, Tamb = 25C (unless otherwise specified) Parameter Input Offset Voltage (1) Tamb = +25C Tmin Tamb T max. Input Offset Current Tamb = +25C Tmin Tamb T max. Input Bias Current (II+ or II-) (2) Tamb = 2.5V Tmin Tamb T max. Large Signal Voltage Gain (Vcc = 15V,RL=15k, Vo=1 to 11V) Supply Current (all comparators)) VCC = +5V, no load VCC = +30V, no load Input Common Mode Voltage Range (Vcc= 30V)(3) Tamb = +25C Tmin Tamb T max. Differential Input Voltage(4) Low Level Output Voltage Vid = -1V, Isink = 4mA Tamb = +25C Tmin Tamb T max High Level Output Current (VCC =Vo =30V, Vid = 1V) Tamb = +25C Tmin Tamb T max Output Sink Current (V id = -1V,Vo = 1.5V) Small Signal Response Time (5) Min. Typ. 1 Max. 7 15 50 150 250 400 Unit mV Iio 5 nA Iib 25 nA Avd Icc 25 200 1.1 1.3 2 2.5 VCC +-1.5 VCC+-2 VCC+ V/mV mA Vicm Vid 0 0 V V VOL 250 400 700 mV Ioh 0.1 1 6 16 1.3 nA A mA s Isink tre (RL = 5.1k connected to VCC+ Large Signal Response Time(6) TTL Input (Vref = +1.4 V, RL=5.1k to VCC+) Output Signal at 50% of final value Output Signal at 95% of final value trel 500 1 ns s 1. 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 Figure 3. Supply current versus supply voltage Figure 4. Electrical Characteristics 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 LM2901 4 Typical Applications Basic comparator Figure 9. Driving CMOS Figure 8. Figure 10. Driving TTL Figure 11. Low frequency op-amp Figure 12. Low frequency op-amp Figure 13. Transducer amplifier 6/12 LM2901 Figure 14. Low frequency op- amp with offset adjust Typical Applications 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 LM2901 Figure 21. Two-decade high-frequency VCO 8/12 LM2901 PACKAGE MECHANICAL DATA 5 5.1 PACKAGE MECHANICAL DATA DIP14 package Plastic DIP-14 MECHANICAL DATA mm. DIM. MIN. a1 B b b1 D E e e3 F I L Z 1.27 3.3 2.54 0.050 8.5 2.54 15.24 7.1 5.1 0.130 0.100 0.51 1.39 0.5 0.25 20 0.335 0.100 0.600 0.280 0.201 1.65 TYP MAX. MIN. 0.020 0.055 0.020 0.010 0.787 0.065 TYP. MAX. inch P001A 9/12 PACKAGE MECHANICAL DATA LM2901 5.2 SO-14 package SO-14 MECHANICAL DATA DIM. A a1 a2 b b1 C c1 D E e e3 F G L M S 3.8 4.6 0.5 8.55 5.8 1.27 7.62 4.0 5.3 1.27 0.68 8 (max.) 0.149 0.181 0.019 8.75 6.2 0.35 0.19 0.5 45 (typ.) 0.336 0.228 0.050 0.300 0.157 0.208 0.050 0.026 0.344 0.244 0.1 mm. MIN. TYP MAX. 1.75 0.2 1.65 0.46 0.25 0.013 0.007 0.019 0.003 MIN. inch TYP. MAX. 0.068 0.007 0.064 0.018 0.010 PO13G 10/12 LM2901 PACKAGE MECHANICAL DATA 5.3 TSSOP14 package TSSOP14 MECHANICAL DATA mm. DIM. MIN. A A1 A2 b c D E E1 e K L 0 0.45 0.60 0.05 0.8 0.19 0.09 4.9 6.2 4.3 5 6.4 4.4 0.65 BSC 8 0.75 0 0.018 0.024 1 TYP MAX. 1.2 0.15 1.05 0.30 0.20 5.1 6.6 4.48 0.002 0.031 0.007 0.004 0.193 0.244 0.169 0.197 0.252 0.173 0.0256 BSC 8 0.030 0.004 0.039 MIN. TYP. MAX. 0.047 0.006 0.041 0.012 0.0089 0.201 0.260 0.176 inch A A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 0080337D 11/12 Revision History LM2901 6 Revision History Date Jan. 2002 July 2005 Revision 1 2 Initial release. 1 - PPAP references inserted in the datasheet see Table : Order Codes on page 1. 2 - ESD protection inserted in Table 1 on page 2. Changes 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 (c) 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 |
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