LM193_08 STMICROELECTRONICS | Alldatasheet
Document overview
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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 (0.4 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. ■ Low input offset voltage: ±1 mV typ. ■ Input common-mode voltage range includes ground ■ Low output saturation voltage: 250 mV typ. sink =4m A ) ■ Differential input voltage range equal to the supply voltage ■ TTL, DTL, ECL, MOS, CMOS compatible outputs
Description
These 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. DIP8 (Plastic package) SO-8 (Plastic micropackage) Pin connections (top view) TSSOP8 (Thin shrink small outline package) MiniSO-8 (Plastic micropackage) + - 1 - Output 1 2 - Inverting input 1 3 - Non-inverting input 1 4 - V CC 5 - Non-inverting input 2 6 - Inverting input 2 7 - Output 2 8 - VCC
1 Schematic diagram
Figure 1. Schematic diagam (1/2 LM193)
2 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
- Short-circuits from the output to V CC
- Short-circuits can c ause excessive heating and destructive dissipation. Values are typical.
- 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 floating.
- Machine model: A 200 pF capacitor is c harged to the specified voltage, then discharged directly between two pins of the
while the other pins are floating.
- Charged device model: all pins and the pac kage 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
- The input common-mode voltage of either input signal volt age should not be allowed to go negative by more than 0.3 V.
+ -1.5 V, but either or both inputs can go to +30 V without damage.
3 Electrical characteristics
Table 3. V CC
- At output switch point, V o ≈ 1.4 V, Rs = 0 with VCC
- 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.
- The response time specified is for a 100 mV input step with 5 mV overdrive. For larger overdrive signals 300 ns can be
- Positive excursions of input voltage may exceed the power s upply level. As long as the other voltage remains within the
-0.3 V (or 0.3 V below the negative power supply, if used).
4 Typical applications
Figure 7. Basic comparator Figure 8. Driving TTL Figure 9. Low frequency op-amp Figure 10. Driving CMOS Figure 11. Low frequency op-amp Figure 12. Transducer amplifier
Figure 19. Two-decade high-frequency VCO
5 Package information
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
700 Hz f 100kHzo
5.1 DIP8 package information
Figure 20. DIP8 package mechanical drawing Table 4. DIP8 package mechanical data
5.2 SO-8 package information
Figure 21. SO-8 package mechnical drawing Table 5. SO-8 package mechnical data
5.3 TSSOP8 package information
Figure 22. TSSOP8 package mechanical drawing Table 6. TSSOP8 package mechanical data
5.4 MiniSO-8 package information
Figure 23. MiniSO-8 package mechanical drawing Table 7. MiniSO-8 package mechanical data
6 Ordering information
Table 8. Order codes
- Qualified and characterized accordi ng to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001
7 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. Table 6: Ordering information on page 13. 16-Feb-2006 6 Unit error for V ol parameter see Table 3 on page 4. thickness, see Figure 20 on page 9. Updated MiniSO-8 package information. Reformatted package information. Added automotive grade order codes. drawing was marked with an F in table.