LM2903N

LM2903 Low-power dual voltage comparator Datasheet - production data Related products • See the LM2903W for similar devices with higher ESD performances 6 0LQL62 SODVWLF PLFURSDFNDJH ' 62 SODVWLF PLFURSDFNDJH 3 76623 WKLQVKULQNVPDOO RXWOLQHSDFNDJH ')1[PP SODVWLFPLFURSDFNDJH • See the LM2903H for similar devices with operating temperature up to 150 °C Description This device consists of two independent lowpower voltage comparators designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible. In addition, the device has a unique characteristic in that the input common-mode voltage range includes the negative rail even though operated from a single power supply voltage. Features • Wide single supply voltage range or dual supplies +2 V to +36 V or ±1 V to ±18 V • Very low supply current (0.4 mA) independent of supply voltage (1 mW/comparator at +5 V) • Low input bias current: 25 nA typ. • Low input offset current: ±5 nA typ. • Input common-mode voltage range includes negative rail • Low output saturation voltage: 250 mV typ. (IO = 4 mA) • Differential input voltage range equal to the supply voltage • TTL, DTL, ECL, MOS, CMOS compatible outputs • Automotive qualification September 2021 This is information on a product in full production. DocID2470 Rev 14 1/21 www.st.com Contents LM2903 Contents 1 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Package pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Typical application schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.1 SO8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.2 TSSOP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.3 MiniSO8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 6.4 DFN8 2x2 package mechanical data (LM2903Q2T) . . . . . . . . . . . . . . . . 15 6.5 DFN8 2x2 package mechanical data (LM2903YQ3T) . . . . . . . . . . . . . . . 17 7 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2/21 DocID2470 Rev 14 LM2903 1 Schematic diagram Schematic diagram Figure 1. Schematic diagram (1/2 LM2903) 3.5 μA 100 μA 3.5 μA 100 μA Non-inverting input Inverting input DocID2470 Rev 14 3/21 21 Package pin connections 2 LM2903 Package pin connections Figure 2. Pin connections for each package (top view)(a) 2XW 9&& ,Q 287  2XW ,1   ,Q ,Q ,1   9&& ,Q 9&&  62  9&& 2XW 9&&  287 ,Q 2XW   ,1 ,Q ,Q   ,1 9&& ,Q 76623 0LQL62 2XW   9&& ,Q   2XW  ,Q  ,Q ,Q  9&&  1& ')1[DQG')1[ZHWWDEOHIODQNV a. Exposed pad can be left floating or connected to ground. 4/21 DocID2470 Rev 14 D LM2903 3 Absolute maximum ratings and operating conditions Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol Parameter VCC Supply voltage Vid Differential input voltage Vin Input voltage Value ±18 or 36 ±36 Rthja Thermal resistance junction to ambient SO8 TSSOP8 MiniSO8 DFN8 2x2 mm Rthjc Thermal resistance junction to case(2) SO8 TSSOP8 MiniSO8 DFN8 2x2 mm Tstg Infinite (2) 125 120 190 57 °C/W 40 37 39 26 Maximum junction temperature +150 °C Storage temperature range -65 to +150 Human body model (HBM)(3) Machine model (MM) ESD V -0.3 to +36 Output short-circuit to ground (1) Tj Unit 800 V (4) 200 CDM: charged device model (all packages except MiniSO8)(5) 1.5 CDM: charged device model (MiniSO8) 1.3 kV 1. Short-circuits from the output to VCC+ can cause excessive heating and possible destruction. The maximum output current is approximately 20 mA, independent of the magnitude of VCC+. 2. Short-circuits can cause excessive heating and destructive dissipation. Values are typical. 3. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are left floating. 4. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are left floating. 5. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins. Table 2. Operating conditions Symbol Parameter Vicm Common mode input voltage range Tmin ≤ Tamb ≤ Tmax Toper Operating free-air temperature range DocID2470 Rev 14 Value Unit 0 to VCC+ -1.5 0 to VCC+ -2 V -40 to +125 °C 5/21 21 Electrical characteristics 4 LM2903 Electrical characteristics Table 3. VCC+ = 5 V, VCC- = GND, Tamb = 25°C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit mV Vio Input offset voltage(1) Tmin ≤ Tamb ≤ Tmax 1 7 15 Iio Input offset current Tmin ≤ Tamb ≤ Tmax 5 50 150 Iib Input bias current(2) Tmin ≤ Tamb ≤ Tmax 25 250 400 nA Avd Large signal voltage gain VCC = 15 V, RL= 15 kΩ, Vo= 1 to 11 V ICC Supply current (all comparators) VCC = 5 V, no load VCC = 30 V, no load Vid Differential input voltage(3) VOL Low level output voltage (Vid = -1 V, Isink = 4 mA) Tmin ≤ Tamb ≤ Tmax 250 IOH High level output current (VCC =Vo = 30 V, Vid = 1 V) Tmin ≤ Tamb ≤ Tmax 0.1 Isink Output sink current (Vid = -1 V, Vo = 1.5 V) tres Small signal response time(4) (RL = 5.1 kΩ to VCC+) 25 200 0.4 1 V/mV 1 2.5 mA VCC+ V 400 700 mV 1 6 nA µA 16 mA 1.3 µs time(5) trel 1. Large signal response TTL input (Vref = +1.4 V, RL= 5.1 kΩ to VCC+) Output signal at 50% of final value Output signal at 95% of final value 500 1 At output switch point, VO ≈ 1.4 V, RS = 0 Ω with VCC+ from 5 V to 30 V, and over the full input common-mode range (0 V to VCC+ –1.5 V). 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. 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 provides a proper output state. The low input voltage state must not be less than –0.3 V (or 0.3 V below the negative power supply, if used). 4. The response time specified is for a 100 mV input step with 5 mV overdrive. 5. Maximum values are guaranteed by design and evaluation. 6/21 DocID2470 Rev 14 ns µs LM2903 Electrical characteristics Figure 3. Supply current vs. supply voltage Figure 4. Input current vs. supply voltage Figure 5. Output saturation voltage vs. output current Figure 6. Response time for various input overdrives - negative transition Figure 7. Response time for various input overdrives - positive transition DocID2470 Rev 14 7/21 21 Typical application schematics 5 LM2903 Typical application schematics Figure 8. Basic comparator Figure 9. Driving CMOS 5V VCC = 5 V 15 kΩ 100 kΩ +V(ref) +V(ref) 1/2 LM2903 1/ 2 LM2903 VO & -V(ref) -V(ref) Figure 10. Driving TTL Figure 11. Low frequency op-amp 5V 5V 15 kΩ 10 kΩ 1/2 LM2903 +V(ref) 1/ 2 LM2903 ~ & el eo -V(ref) 0.5 μF 100 kΩ & 1 kΩ AV = 100 Figure 12. Low frequency op-amp with boost Figure 13. Transducer amplifier 5V 5V (eo = 0 V for el = 0 V) Magnetic pick-up 15 kΩ 1/ 2 LM2903 ~ el 10 kΩ 3 kΩ 1/ 2 LM2903 2N 2222 0.5 μF 20 MΩ 100 kΩ eo 1 kΩ 10 kΩ AV = 100 8/21 DocID2470 Rev 14 eo LM2903 Typical application schematics Figure 14. Low frequency op-amp with offset adjust Figure 15. Zero crossing detector (single power supply) 5V 5V Offset adjust 100 kΩ 5V R2 RS 1 MΩ 100 kΩ 1 MΩ R1 5.1 kΩ 15 kΩ 1/ 2 LM2903 el ~ 5.1 kΩ 100 kΩ 5.1 kΩ el 1/ 2 LM2903 2N 2222 0.5 μ F 1N4148 R1 100 kΩ 1 kΩ 20 MΩ eo Figure 16. Limit comparator VCC 10 kΩ Figure 17. Split-supply applications - zero crossing detector (12 V) 15 V 2RS V(ref) high 10 kΩ 5.1 kΩ 1/ 2 LM2903 Lamp RS 1/2 LM2903 eI eI eo ~ ~ 2RS 1/2 LM2903 15 V 2N 2222 V(ref) low DocID2470 Rev 14 9/21 21 Typical application schematics LM2903 Figure 18. Crystal controlled oscillator Figure 19. Comparator with a negative reference VCC = 15 V 15 V 200 kΩ 2 kΩ 100 kΩ VCC 0.1 μF 5.1 kΩ 0 1/2 LM2903 eo 1/2 LM2903 eI ~ f = 100 kHz eo 5V 200 kΩ 15 V Figure 20. Time delay generator VC C = +15 V 10 kΩ 15 kΩ 3 kΩ 200 kΩ 10 MΩ 10 kΩ 1/2 LM2903 V3 V03 VCC to t3 3 kΩ 10 kΩ VCC 0 to 1/2 LM2903 tA 10 MΩ 51 kΩ 10 kΩ VC1 1/2 LM2903 V2 V(ref.) VO2 VCC to 0.001 μF Input gating signal 3 kΩ VCC 10 MΩ 51 kΩ V3 VC1 V2 V1 0 t 0 t1 t2 t3 10/21 10 kΩ 1/2 LM2903 V1 t t4 51 kΩ DocID2470 Rev 14 V O1 VCC t0 t1 t2 LM2903 Typical application schematics Figure 21. Two-decade, high-frequency VCO VCC 100 kΩ Frequency control voltage input Vcontrol 500 pF 10 kΩ 100 kΩ 3 kΩ 3 kΩ 5.1 kΩ 1/ 2 LM2903 1/ 2 LM2903 0.01 μF 0.1 μF Output 1 VCC /2 20 kΩ 50 kΩ VCC Output 2 20 kΩ 1/ 2 LM2903 VCC /2 VCC = + 30 V Vcontrol +50 V +250 mV 700 Hz fo 100 kHz DocID2470 Rev 14 11/21 21 Package information 6 LM2903 Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. 12/21 DocID2470 Rev 14 LM2903 6.1 Package information SO8 package information Figure 22. SO8 package mechanical drawing Table 4. SO8 package mechanical data Dimensions Ref. mm Min. Typ. A Inches Max. Min. Typ. 1.75 0.069 A1 0.10 A2 1.25 b 0.28 0.48 0.011 0.019 c 0.17 0.23 0.007 0.010 D 4.80 4.90 5.00 0.189 0.193 0.197 E 5.80 6.00 6.20 0.228 0.236 0.244 E1 3.80 3.90 4.00 0.150 0.154 0.157 e 0.25 Max. 0.004 0.010 0.049 1.27 0.050 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 L1 k ccc 1.04 1° 0.040 8° 0.10 DocID2470 Rev 14 1° 8° 0.004 13/21 21 Package information 6.2 LM2903 TSSOP8 package information Figure 23. TSSOP8 package mechanical drawing Table 5. TSSOP8 package mechanical data Dimensions Ref. mm Min. Typ. A Max. Min. Typ. 1.20 A1 0.05 A2 0.80 b Max. 0.047 0.15 0.002 1.05 0.031 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.008 D 2.90 3.00 3.10 0.114 0.118 0.122 E 6.20 6.40 6.60 0.244 0.252 0.260 E1 4.30 4.40 4.50 0.169 0.173 0.177 e 0° L 0.45 aaa 1.00 0.65 k L1 14/21 Inches 0.60 0.006 0.039 0.041 0.0256 8° 0° 0.75 0.018 1 8° 0.024 0.030 0.039 0.10 DocID2470 Rev 14 0.004 LM2903 6.3 Package information MiniSO8 package information Figure 24. MiniSO8 package mechanical drawing Table 6. MiniSO8 package mechanical data Dimensions Ref. mm Min. Typ. A Inches Max. Min. Typ. 1.1 A1 0 A2 0.75 b Max. 0.043 0.15 0 0.95 0.030 0.22 0.40 0.009 0.016 c 0.08 0.23 0.003 0.009 D 2.80 3.00 3.20 0.11 0.118 0.126 E 4.65 4.90 5.15 0.183 0.193 0.203 E1 2.80 3.00 3.10 0.11 0.118 0.122 e L 0.85 0.65 0.40 0.60 0.006 0.033 0.026 0.80 0.016 0.024 L1 0.95 0.037 L2 0.25 0.010 k ccc 0° 0.037 8° 0.10 DocID2470 Rev 14 0° 0.031 8° 0.004 15/21 21 Package information 6.4 LM2903 DFN8 2x2 package information (LM2903Q2T) Figure 25. DFN8 2x2x0.6 mm package mechanical drawing (pitch 0.5 mm) $06B9 Table 7. DFN8 2x2x0.6 mm package mechanical data (pitch 0.5 mm) Dimensions Ref. A mm Min. Typ. Max. Min. Typ. Max. 0.51 0.55 0.60 0.020 0.022 0.024 A1 0.05 A3 0.002 0.15 0.006 b 0.18 0.25 0.30 0.007 0.010 0.012 D 1.85 2.00 2.15 0.073 0.079 0.085 D2 1.45 1.60 1.70 0.057 0.063 0.067 E 1.85 2.00 2.15 0.073 0.079 0.085 E2 0.75 0.90 1.00 0.030 0.035 0.039 e 16/21 Inches 0.50 0.020 L 0.50 0.020 ddd 0.08 0.003 DocID2470 Rev 14 LM2903 Package information Figure 26. DFN8 2x2x0.6 mm recommended footprint PP PP PP PP PP PP $06B9 DocID2470 Rev 14 17/21 21 Package information 6.5 LM2903 DFN8 2x2 package information (LM2903YQ3T) Figure 27. DFN8 2x2 mm wettable flanks package outline Table 8. DFN8 2x2 mm wettable flanks package mechanical data Dimensions Ref. A mm Min. Typ. Max. Min. Typ. Max. 0.70 0.75 0.80 0.027 0.029 0.031 A1 0.10 0.003 b 0.20 0.25 0.30 0.007 0.009 0.011 D 1.95 2.00 2.05 0.076 0.078 0.080 D1 0.80 0.90 1.00 0.031 0.035 0.039 E 1.95 2.00 2.05 0.076 0.078 0.080 E1 1.50 1.60 1.70 0.059 0.062 0.066 e 0.50 0.019 F 0.05 0.001 G aaa 18/21 Inches 0.25 0.30 0.35 0.10 DocID2470 Rev 14 0.009 0.011 0.003 0.013 LM2903 7 Ordering information Ordering information Table 9. Order code Order code Temperature range Package Packing Marking LM2903D/DT SO8 Tube or tape and reel 2903 LM2903YDT(1) SO8 (automotive grade) 2903Y LM2903PT TSSOP8 2903 TSSOP8 (automotive grade) 2903Y LM2903YPT(1) -40 °C to +125 °C LM2903ST MiniSO8 Tape and reel K431 LM2903YST(1) MiniSO8 (automotive grade) K419 LM2903Q2T DFN8 2x2 mm K1Z LM2903YQ3T(1) DFN8 2x2 mm wettable flanks K5M 1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q 002 or equivalent. DocID2470 Rev 14 19/21 21 Revision history 8 LM2903 Revision history Table 10. Document revision history Date Revision 15-Jun-2003 1 Initial release. 2-May-2005 2 PPAP references inserted in the datasheet see table order code p1. 8-Aug-2005 3 Electrical characteristics table corrected (see Table 3 on page 5). Pin connections diagram moved to cover page. Lead-free package information added. 27-Oct-2005 4 PPAP part number added in Table 9: Order codes. 11-May-2007 5 ESD tolerance added in Table 1: Absolute maximum ratings on page 4. 6 Added Rthja and Rthjc, and ESD CDM parameters in Table 1: Absolute maximum ratings. Removed Vicm from electrical characteristics in Table 3. Reformatted package information in Section 6. Added footnotes for automotive grade parts in Table 9: Order codes.. 21-Feb-2008 7 Corrected SO-8 package mechanical data. Dimension E in drawing was marked H in table. Corrected revision history (revision 6 is of January 2008, not January 2007). 03-Dec-2009 8 Added pin description on cover page. 16-Feb-2012 9 Removed LM2903YD order code from Table 9. 05-Dec-2012 10 Added the DFN8 package Small modifications to Figure 2 and Table 1. 17-Jan-2008 21-Nov-2013 11 Changes Added MiniSO8 package Added Related products Table 1: updated Rthjc and CDM information for MIniSO8 Table 9: added order code LM2903YST for MiniSO8 (automotive grade). Updated disclaimer 20/21 15-Nov-2017 12 Added new RPN LM2903YQ3T Table 9: Order codes, and new Section 6.5: DFN8 2x2 package mechanical data (LM2903YQ3T). Removed DIP8 package. 08-Oct-2018 13 Updated Section 7: Ordering information. 08-Sep-2021 14 Updated Table 1: Absolute maximum ratings. DocID2470 Rev 14 LM2903 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2021 STMicroelectronics – All rights reserved DocID2470 Rev 14 21/21 21