Tokmas TLV3501AIDBVR(TOKMAS)

The TLV3501XXX devices combine high-speed operation with 6mV internal hysteresis for improved noise immunity, and the input common-mode range extends 0.2V beyond the supply rails. The TLV3501XX comparators operate from a single supply of 1.8V to 5.5V (or dual supplies of ±1.35V to ±2.75V) over a temperature range of -40℃ to +125℃. The device may operate below this range, but performance is not specified. Device inputs are protected by ESD diodes that conduct when the input voltage exceeds the supply by approximately 300mV. If input current is limited to 10mA, transient voltages exceeding the supply by 300mV can be tolerated. The shutdown pin places the device in an idle state when not in use. When the shutdown pin is high, the device current is approximately 2µA and the output is high-impedance; when the shutdown pin is low, the TLV3501xx is active. Exiting shutdown mode requires approximately 100ns. The TLV3501xx performs excellently with proper layout, but the comparator inputs have limited noise immunity within the specified offset voltage range. For slowly changing or noisy input signals, the comparator output may exhibit undesirable switching states as the input signal passes through the switching threshold. In such applications, the 6mV internal hysteresis of the TLV3501xx may be insufficient. To improve noise immunity, external hysteresis can be added by connecting a small amount of feedback to the positive input. The total hysteresis sets the transition voltage required to switch the comparator output, widening the threshold region and thereby reducing noise sensitivity. Bypass capacitors should be placed close to the supply pins to reduce noise coupling from noisy or high-impedance supplies. As with any high-speed comparator or amplifier, proper design and PCB layout are critical to achieving optimal performance.

• High-speed: 4.5ns
• Rail-to-rail input/output
• Supply voltage: 1.8V ~ 5.5V
• Push-pull CMOS output stage
• Shutdown function
• Low supply current: 3.2mA
• 6-pin SOT23 package

• Test Equipment
• Wireless Base Stations
• Threshold Detectors
• Zero-Crossing Detectors
• Window Comparators