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LM2903 Datasheet(PDF) 5 Page - NXP Semiconductors |
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LM2903 Datasheet(HTML) 5 Page - NXP Semiconductors |
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5 / 6 page  Philips Semiconductors Product specification LM193/A/293/A/393/A/2903 Low power dual voltage comparator 1995 Nov 27 5 EQUIVALENT CIRCUIT 100k Ω 500pF 10 0.1 µF 20k Ω 50k Ω 20k Ω V + /2 V + 30k Ω 5.1k Ω 700k Ω V – /2 – + + VC FREQUENCY CONTROL VOLTAGE INPUT 3.0k Ω OUTPUT 1 OUTPUT 2 – + – + + VREF HI + VIN 2RS RS 2RS + V (12VDC) 10K Ω LAMP 2N2222 + – + – + – + 5VDC 360 100 100k + – + 5VDC 360 100 100k + – + 5VDC 360 100 100k + – + 5VDC 360 100 100k + VREF 4 + VREF 3 + VREF 2 + VREF 1 VO + – V+ 2.0k Ω V+ 0 VO I – 100kHz CRYSTAL 200k Ω 200k Ω 100k Ω 0.1 µF Crystal–Controlled Oscillator Limit Comparator Two–Decade High–Frequency VCO Visible Voltage Indicator + – V+ TTL–to–MOS Logic Converter NOTES: V+ = 30VDC + 250m VDC < VC = 50VDC 700H < fO = 100kHz NOTE: Input of unused comparators should be grounded. LM393 LM393 LM393 SL00081 Figure 3. Equivalent Circuit |
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