TLV3502 - 4.5ns Rail-to-Rail High-Speed Comparator | TI
MPN: TLV3502 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.5 | $1.50 |
| 10 | $1.35 | $13.50 |
| 100 | $1.2 | $120.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.9 | $900.00 |
Drop-in alternatives for TLV3502 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TLV3502AIDR
β Drop-Inπ Reference alternative (not in catalog)
TLV3502AIDCNT
β Drop-Inπ Reference alternative (not in catalog)
TLV3502-Q1
β Drop-Inπ Reference alternative (not in catalog)
LT1720
β Drop-Inπ Reference alternative (not in catalog)
TLV3502 Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 |
| Propagation Delay | 4.5 ns |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Supply Current per Channel | 3.2 mA |
| Input Type | Rail-to-Rail |
| Output Type | Push-Pull, Rail-to-Rail, CMOS, TTL |
| Input Bias Current | pA range (CMOS inputs) |
| Operating Temperature Range | -40Β°C to +125Β°C |
| Package Type | 8-SOIC, 8-SOT-23 |
| Mounting Type | Surface Mount |
| Shutdown Function | No (dual version) |
| Output Current | [DATA_NEEDED: Output current capability] |
| Input Offset Voltage | [DATA_NEEDED: Input offset voltage] |
| Common-Mode Input Range | 0 V to VCC |
| RoHS Status | Compliant |
TLV3502 Pin Configuration
| Pin 1 | OUTA β Output of comparator A |
| Pin 2 | INA- β Inverting input of comparator A |
| Pin 3 | INA+ β Non-inverting input of comparator A |
| Pin 4 | GND β Ground |
| Pin 5 | INB+ β Non-inverting input of comparator B |
| Pin 6 | INB- β Inverting input of comparator B |
| Pin 7 | OUTB β Output of comparator B |
| Pin 8 | VCC β Positive supply voltage |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TLV3502 is suitable for 6 applications: Zero-Crossing Detectors, Window Comparators, Level Shifters, High-Speed Signal Conditioning, PWM Circuits, Oscillator Circuits.
Zero-Crossing Detectors
The TLV3502's 4.5ns propagation delay and rail-to-rail inputs make it ideal for zero-crossing detection in AC power control and frequency measurement. It quickly compares the input signal to ground, producing a clean digital output for phase-locked loops or timing circuits. The low supply current of 3.2mA per channel is beneficial in battery-powered phase meters. The push-pull output directly drives logic, simplifying interface design.
Recommended
Window Comparators
The TLV3502's dual channels allow implementation of a window comparator with a single IC, detecting when a signal is within a specified voltage range. Its rail-to-rail input range ensures accurate detection even near the supply rails. The fast 4.5ns propagation delay enables real-time monitoring in high-speed systems. The push-pull outputs can directly drive alarm or logic circuits without additional components.
Recommended
Level Shifters
The TLV3502 can be used as a level shifter to convert analog signals to digital logic levels. Its rail-to-rail output ensures compatibility with both CMOS and TTL logic, while the high-speed 4.5ns propagation delay preserves signal integrity in high-frequency applications. The low input bias current minimizes loading on high-impedance sources, making it suitable for sensor interfaces.
Recommended
High-Speed Signal Conditioning
In test and measurement equipment, the TLV3502 conditions high-speed analog signals into digital pulses for further processing. Its 4.5ns propagation delay allows accurate timing measurements, and the rail-to-rail input handles signals near the supply rails. The low supply current is advantageous in portable instruments. The push-pull output drives counters or logic analyzers directly.
Recommended
PWM Circuits
The TLV3502's fast propagation delay makes it suitable for PWM generation and demodulation circuits. It can compare a sawtooth waveform to a reference voltage to produce a PWM signal with high frequency and accuracy. The rail-to-rail output ensures full logic swing, and the low supply current is beneficial in power-sensitive designs. The dual channels allow generation of complementary PWM signals.
Recommended
Oscillator Circuits
The TLV3502 can be used in relaxation oscillators and high-frequency clock generation due to its 4.5ns propagation delay. Its rail-to-rail inputs and outputs allow wide voltage swings, and the low supply current is ideal for portable devices. The push-pull output can drive capacitive loads directly, simplifying oscillator design.
Recommended
Recommended Products Summary
Engineering reference data for TLV3502 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLV3502AIDR | TLV3502AIDCNT | TLV3502-Q1 | LT1720 |
|---|---|---|---|---|---|
| Package | 8-SOIC, 8-SOT-23 | 8-SOIC | SOT-23-8 | 8-SOIC | 8-SOIC |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Number of Channels | 2 | 2 | 2 | 2 | 2 |
| Propagation Delay | 4.5 ns | 4.5 ns | 4.5 ns | 4.5 ns | 4.5 ns |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 6 V |
| Supply Current per Channel | 3.2 mA | 3.2 mA | 3.2 mA | 3.2 mA | 4 mA |
| Input Bias Current | pA range | pA range | pA range | pA range | 2 Β΅A |
| Shutdown Function | No | No | No | No | No |
Key Differentiators
- Ultra-low input bias current in pA range (vs LT1720)
- Lower supply current (vs LT1720)
- Automotive grade option (vs TLV3502AIDR)
Design Notes
Bypass the VCC pin with a 0.1Β΅F ceramic capacitor placed as close to the pin as possible. Additionally, a 10Β΅F bulk capacitor may be needed if the supply is noisy or if the comparator is switching high-speed signals. Proper bypassing minimizes propagation delay variation and reduces output jitter.
Keep input traces short and shielded to avoid noise pickup, especially in high-speed applications. Use ground planes to provide a low-impedance return path. The TLV3502's fast 4.5ns propagation delay means that even small parasitic capacitance can affect performance, so minimize trace lengths and via count.
Ensure the input common-mode voltage stays within the specified range (0V to VCC). Exceeding this range can cause output errors or latch-up. Also, avoid driving the output beyond the supply rails, as the push-pull stage is not designed for that. Use series resistors if driving long cables to prevent reflections.
Compliance Information
RoHS compliant per TI product page. AEC-Q100 qualified for TLV3502-Q1 variant.
