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LM193ADT-LM393AN-LM393EDT
Low power dual voltage comparator
January 2013 Doc ID 2164 Rev 14 1/20
LM193, LM293, LM393Low power dual voltage comparators
Datasheet − production data
Features Wide single-supply voltage range or dual
supplies: +2 V to +36 V or ±1 V to ±18V Very low supply current (0.45 mA) independent
of supply voltage (1 mW/comparator at +5V) 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.
(Isink =4 mA) Differential input voltage range equal to the
supply voltage TTL, DTL, ECL, MOS, CMOS compatible
outputs Available in DIP8, SO-8, TSSOP8, MiniSO-8,
and DFN8 2 x 2 mm packages
DescriptionThe LM193, LM293, and LM393 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.
Contents LM193, LM293, LM3932/20 Doc ID 2164 Rev 14
Contents Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Typical applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116.1 DIP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.2 SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.3 TSSOP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.4 MiniSO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.5 DFN8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
LM193, LM293, LM393 Pin connections
Doc ID 2164 Rev 14 3/20
1 Pin connections
Figure 1. Pin connections (top view)
Schematic diagram LM193, LM293, LM393
4/20 Doc ID 2164 Rev 14
2 Schematic diagram
Figure 2. Schematic diagram (1/2 LM193)
LM193, LM293, LM393 Absolute maximum ratings and operating conditions
Doc ID 2164 Rev 14 5/20 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings Short-circuits from the output to VCC+ 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 The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V.
The high end of the common-mode voltage range is VCC+ -1.5 V, but either or both inputs can go to +30 V without damage.
Electrical characteristics LM193, LM293, LM393
6/20 Doc ID 2164 Rev 14
4 Electrical characteristics
Table 3. VCC+ = +5V, VCC- = 0V, T amb = +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+ -1.5V). 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 range, the comparator will provide 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). The response time specified is for a 100 mV input step with 5 mV overdrive. For larger overdrive signals 300 ns can be
obtained.
LM193, LM293, LM393 Electrical characteristics
Doc ID 2164 Rev 14 7/20
Figure 3. Supply current vs. supply voltage Figure 4. Input current vs. supply voltage
Figure 5. Output saturation voltage vs.
Figure 6. Response time for various input
Figure 7. Response time for various input overdrives - positive transition
Typical applications LM193, LM293, LM393
8/20 Doc ID 2164 Rev 14
5 Typical applications
Figure 8. Basic comparator Figure 9. Driving TTL
Figure 10. Low frequency op amp Figure 11. Driving CMOS
Figure 12. Low frequency op amp Figure 13. Transducer amplifier
LM193, LM293, LM393 Typical applications
Doc ID 2164 Rev 14 9/20
Figure 14. Low frequency op amp with offset
adjust
Figure 15. Zero crossing detector
(single power supply)
Figure 16. Limit comparator Figure 17. Crystal controlled oscillator
Figure 18. Split-supply applications - zero
crossing detector
Figure 19. Comparator with a negative
reference
Typical applications LM193, LM293, LM393
10/20 Doc ID 2164 Rev 14
Figure 20. Two-decade high frequency VCO
