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TL331IDBVTG4 Datasheet(PDF) 10 Page - Texas Instruments |
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TL331IDBVTG4 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 18 page OUT 1 IN– 2 IN+ 3 4 V CC 5 0.1 F GND 0.1 F Ground Bypass Capacitor Positive Supply Negative Supply or Ground Ground Only needed for dual power supplies ±1 0 1 2 3 4 5 6 -0.25 0.25 0.75 1.25 1.75 2.25 Time (usec) 5mV OD 20mV OD 100mV OD C004 ±1 0 1 2 3 4 5 6 ±0.25 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 Time (usec) 5mV OD 20mV OD 100mV OD C006 TL331 SLVS238G – AUGUST 1999 – REVISED JANUARY 2015 www.ti.com 9.2.3 Application Curves The following curves were generated with 5 V on VCC and VLogic, RPULLUP = 5.1 kΩ, and 50 pF scope probe. Figure 5. Response Time for Various Overdrives Figure 6. Response Time for Various Overdrives (Positive Transition) (Negative Transition) 10 Power Supply Recommendations For fast response and comparison applications with noisy or AC inputs, it is recommended to use a bypass capacitor on the supply pin to reject any variation on the supply voltage. This variation can eat into the comparator's input common mode range and create an inaccurate comparison. 11 Layout 11.1 Layout Guidelines For accurate comparator applications without hysteresis it is important maintain a stable power supply with minimized noise and glitches, which can affect the high level input common mode voltage range. In order to achieve this, it is best to add a bypass capacitor between the supply voltage and ground. This should be implemented on the positive power supply and negative supply (if available). If a negative supply is not being used, do not put a capacitor between the IC's GND pin and system ground. 11.2 Layout Example Figure 7. TL331 Layout Example 10 Submit Documentation Feedback Copyright © 1999–2015, Texas Instruments Incorporated Product Folder Links: TL331 |
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