Datasheet - LM193, LM293, LM393, LM393W - Low-power, dual-voltage comparators
Document overview
- Manufacturer or author: STMICROELECTRONICS
- PDF pages: 18
Technical content
Features
- Wide single-supply voltage range or dual supplies: 2 V to 36 V or ±1 V to ±18 V
- Very low supply current (0.45 mA) independent of supply voltage (1 mW/ comparator at 5 V)
- Low input bias current: 20 nA typ.
- Low input offset current: ±3 nA typ.
- Low input offset voltage: ±1 mV typ.
- Input common-mode voltage range includes ground
- Low output saturation voltage: 80 mV typ. (I sink = 4 mA)
- Differential input voltage range equal to the supply voltage
- TTL, DTL, ECL, MOS, CMOS compatible outputs
- Available in DFN8 2x2, MiniSO8, TSSOP8, and SO8 packages
- LM393W with internal ESD protection: 2 kV HBM
Description
The LM193, LM293, LM393 and LM393W devices consist of two independent low voltage comparators 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. The LM393W offers additional ESD robustness of 2 kV HBM on all pins. MiniSO8 DFN8 2x2 TSSOP8 SO8 Maturity status link LM193, LM293, LM393, LM393W Low-power, dual-voltage comparators LM193, LM293 LM393, LM393W Datasheet DS0443 - Rev 17 - September 2022 For further information contact your local STMicroelectronics sales office.
1 Schematic diagram
Figure 1. Schematic diagram (LM193, L293, LM393) Figure 2. Schematic diagram (LM393W)
2 Package pin connections
Figure 3. Pin connections (top view)
5 In2+
- The exposed pad of the DFN8 2x2 can be left floating or connected to ground
3 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
- Short-circuits from the output to V CC+ can cause excessive heating and potential destruction. The maximum output current is approximately
20 mA independent of the magnitude of VCC+.
- Short-circuits can cause excessive heating and destructive dissipation. Values are typical.
- ESD class definition from AEC-Q100:
- HBM class H1B: ESD voltage level from 500 V to 1000 V
- MM class M2: ESD voltage level from 100 V to 200 V
- CDM class C5: ESD voltage level greater than 1500 V.
Table 2. Operating conditions
4 Electrical characteristics
Table 3. VCC + = 5 V, VCC - = 0 V, Tamb = 25 °C (unless otherwise specified)
- At output switch point, Vo = 1.4 V, Rs = 0 with VCC + from 5 V to 30 V, and over the full common-mode range (0 V to (VCC +) - 1.5 V).
- 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.
- Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode
negative power supply, if used).
- The response time specified is for a 100 mV input step with 5 mV overdrive. For larger overdrive signals, 300 ns can be obtained.
Electrical characteristics
5 Electrical characteristic curves
Figure 4. Supply current vs. supply voltage Figure 5. Input current vs. supply voltage Figure 6. Output saturation voltage vs. output current Figure 7. Response time for various input overdrives - Figure 8. Response time for various input overdrives - positive transition
6 Typical applications
Figure 9. Basic comparator Figure 10. Driving TTL Figure 11. Low-frequency op amp (1) Figure 12. Driving CMOS Figure 13. Low-frequency op amp (2) Figure 14. Transducer amplifier
Figure 21. Two-decade, high-frequency VCO
700 Hz f 100 kHzo
7 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.
7.1 DFN8 2 x 2 package information
Figure 22. DFN8 2 x 2 package outline Table 4. DFN8 2 x 2 mechanical data
Package information
DS0443 - Rev 17 page 11/18
Figure 23. DFN8 2 x 2 recommended footprint
7.2 MiniSO8 package information
Figure 24. MiniSO8 package outline Table 5. MiniSO8 package mechanical data
7.3 TSSOP8 package information
Figure 25. TSSOP8 package outline Table 6. TSSOP8 package mechanical data
7.4 SO8 package information
Figure 26. SO8 package outline Table 7. SO8 package mechanical data
8 Ordering information
Table 8. Ordering information
Ordering information
DS0443 - Rev 17 page 16/18
Revision history
Table 9. Document revision history 02-Jul-2002 1 First release. 02-Jan-2005 2 Class A of the product included in the datasheet. 02-May-2005 3 PPAP references inserted in the datasheet, see Table 7: Ordering information on page 18. 22-Nov-2005 5 Modification on Table 3 on page 6. LM293,A must be -40/+105°C instead of -40/+125°C. 16-Feb-2006 6 Unit error for Vol parameter see Table 3 on page 6. Corrected error in DIP8 package information related to lead thickness, see Figure 21 on page 12. Added values for Rthja and Rthjc, and ESD parameters in Table 1: Absolute maximum ratings. Updated MiniSO-8 package information. Reformatted package information. Added automotive grade order codes. 15-Dec-2008 10 Corrected heading in Figure 5. 22-Feb-2010 11 Deleted automotive grade order codes for LM293 and LM393. Updated typical performance curves. Updated typical values on Table 3 on page 6. Updated ESD parameters with ESD classes in Table 1: Absolute maximum ratings. Added DFN8 2x2mm package mechanical drawing. Added DFN8 2x2mm recommended footprint. Added DFN8 2x2mm order codes in Table 9. in Table 9, minor text corrections throughout document. 18-Jan-2013 14 Updated Table 8 (added dimensions in inches). Updated features and descripion on the cover page, Table 1, Figure 5 and Section 8. 01-Oct-2022 17 Updated Table 8. Ordering information.
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