TLV9032DDFR.A datasheet(34/85 Pages) TI2

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OUT

REF

1.8 V

1.2 V

4.0 V

0.0 V

1.61 V

1.58 V

Time

0.0

200.0 u

400.0 u

600.0 u

800.0 u

Figure 7-19. Pulse Slicer Waveforms

7.3 Power Supply Recommendations

Due to the fast output edges, proper supply bypassing is critical to prevent supply ringing and false triggers

and oscillations. Bypass the supply directly at each device with a low ESR 0.1µF ceramic bypass capacitor

directly between VCC pin and ground pins. Narrow, peak currents can be drawn during the output transition time,

particularly for the push-pull output device. These narrow pulses can cause un-bypassed supply lines and poor

grounds to ring, possibly causing variation that can eat into the input voltage range and create an inaccurate

comparison or even oscillations.

The device can be powered from either split supplies (V+, V, and GND), or a single supply (V+ and GND), with

GND applied to the V- pin.

Input signals must stay within the specified input range (between V+ and V-) for either type.

Note that on split supplies, the output now swings low (VOL) to V- potential and not GND.

7.4 Layout

7.4.1 Layout Guidelines

For accurate comparator applications a stable power supply with minimized noise and glitches. Output rise

and fall times are in the tens of nanoseconds, and must be treated as high speed logic devices. The bypass

capacitor must be as close to the supply pin as possible and connected to a solid ground plane, and preferably

directly between the VCC and GND pins.

Minimize coupling between outputs and inputs to prevent output oscillations. Do not run output and input traces

in parallel unless there is a VCC or GND trace between output to reduce coupling. When series resistance is

added to inputs, place resistor close to the device. A low value (<100 ohms) resistor can also be added in series

with the output to dampen any ringing or reflections on long, non-impedance controlled traces. For best edge

shapes, controlled impedance traces with back-terminations must be used when routing long distances.

TLV9020, TLV9021, TLV9022, TLV9024, TLV9030, TLV9031, TLV9032, TLV9034

SNOSDA3H – JUNE 2020 – REVISED NOVEMBER 2025

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