TS339IN - Micropower Quad CMOS Comparator | STMicroelectronics
N.º da peça: TS339IN ✓ AtivoTS339IN Visão geral
A voltage comparator is an analog integrated circuit that compares two input voltages and produces a digital output indicating which input is higher. The TS339IN belongs to the comparator hierarchy, where four open-drain channels can monitor thresholds, detect crossings, supervise signals, or support feedback control. Its CMOS implementation provides low input bias current and low power consumption compared with classic bipolar comparator families.
The TS339IN includes four general-purpose comparator channels with CMOS, open-drain outputs. The 1.35 V to 16 V supply range allows operation from low-voltage battery systems through conventional industrial rails, while the 1 pA typical input bias current reduces loading on high-impedance sensors. A 5 mV typical input offset voltage defines the baseline comparison accuracy, and the 1.5 microsecond response time supports threshold decisions without adding substantial propagation delay.
Each comparator channel operates independently, allowing one device to implement four related decisions. The open-drain output architecture requires an external pull-up resistor, but it also provides flexible output-interface options. Designers can use the pull-up voltage to match downstream logic levels and can connect open-drain outputs in wired-AND configurations where appropriate. Dual-supply operation is supported up to a total supply span of 8 V.
Typical uses include industrial sensor interfaces, battery-powered monitoring, digital control thresholds, window comparators, and general signal-conditioning systems. The low input bias current is particularly useful with resistive dividers, sensor outputs, and leakage-sensitive measurement circuits. The 14-DIP format also supports through-hole assembly and repairable industrial equipment where surface-mount packages would be inconvenient.
When designing around the TS339IN, account for the open-drain output when selecting pull-up values and external logic supply levels. Keep input and output paths away from noisy switching nodes, and verify offset and common-mode behavior against the minimum signal separation required by the application. The operating range of -40°C to +125°C supports industrial temperature environments when the complete assembly is properly qualified.
This product data combines the electrical characteristics, package details, cross-reference options, and practical design guidance needed to evaluate TS339IN. It also organizes pin assignments, application considerations, and compatible alternatives into a concise engineering reference for prototype development and production sourcing.
Alternativas drop-in para TS339IN — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com TS339IN (mesmo formato e footprint) — diferindo em Comparator Type, Mounting Type, Operating Temperature Range, Output Type, Package.
TS339CD
✅ Drop-InConsulte o preço
Ver ficha técnica →LM339DR
✅ Drop-InConsulte o preço
Ver ficha técnica →TLC339IN
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TS339IN Classificações máximas e características elétricas
| Comparator Type | General-purpose voltage comparator |
| Number of Channels | 4 independent channels |
| Technology | CMOS |
| Tipo de saída | Open-drain |
| Operating Supply Voltage Range | 1.35 V to 16 V |
| Maximum Total Dual-Supply Voltage | 8 V |
| Input Bias Current | 1 pA typical |
| Input Offset Voltage | 5 mV typical |
| Response Time | 1.5 microseconds |
| Quiescent Supply Current | 9 mA typical per comparator |
| Faixa de temperatura de operação | -40°C to +125°C |
| Encapsulamento | 14-DIP |
| Contagem de pinos | 14 pins |
| Tipo de montagem | Through-hole |
Configuração de pinos do TS339IN
| Pino 1 | OUT1 — Comparator 1 open-drain output |
| Pino 2 | IN1- — Comparator 1 inverting input |
| Pino 3 | IN1+ — Comparator 1 non-inverting input |
| Pino 4 | GND — Ground reference |
| Pino 5 | IN2+ — Comparator 2 non-inverting input |
| Pino 6 | IN2- — Comparator 2 inverting input |
| Pino 7 | OUT2 — Comparator 2 open-drain output |
| Pino 8 | OUT3 — Comparator 3 open-drain output |
| Pino 9 | IN3- — Comparator 3 inverting input |
| Pino 10 | IN3+ — Comparator 3 non-inverting input |
| Pino 11 | VCC — Positive supply voltage |
| Pino 12 | IN4+ — Comparator 4 non-inverting input |
| Pino 13 | IN4- — Comparator 4 inverting input |
| Pino 14 | OUT4 — Comparator 4 open-drain output |
Aplicações típicas
TS339IN é adequado para 6 aplicaçãos: Industrial Sensor Threshold Detection, Battery-Powered Condition Monitoring, Window Comparator for Signal Qualification, Digital Control and Feedback, General-Purpose Logic Interface, Robust Through-Hole Control Module.
Industrial Sensor Threshold Detection
The TS339IN is appropriate for monitoring a sensor or divided reference voltage against a defined threshold because its 1 pA typical input bias current places minimal load on high-impedance sources. Each of the four channels can perform an independent comparison with a 5 mV typical input offset and 1.5 microsecond response time. Place the device near the protected analog front end, use its open-drain output with an appropriate pull-up, and route the result to a controller input. Verify the actual common-mode voltage and allowed output levels for the selected 1.35 V to 16 V operating configuration.
Recomendado
Battery-Powered Condition Monitoring
The TS339IN supports battery-powered condition monitoring by combining a 1.35 V minimum supply with a micropower CMOS implementation and 9 mA typical consumption per comparator. Four channels can monitor pack voltage, charger state, temperature thresholds, or other slowly changing analog conditions. The 1 pA typical input bias current is useful when the sensing divider has a high source impedance. Avoid enabling unused channels when minimizing total consumption matters, and account for the pull-up current because it adds to the load at the logic output.
Recomendado
Window Comparator for Signal Qualification
Two TS339IN channels can create a window comparator by comparing an input signal against upper and lower threshold references. The remaining channels can monitor the reference rails or provide additional qualification functions. The 1.5 microsecond response time supports detection of events that cross the thresholds without the delay of a much slower supervisory circuit. Use low-offset reference sources and route the comparator inputs away from high-current switching paths to prevent threshold shifts. The open-drain outputs can drive separate pull-ups or be combined where the logic architecture permits wired-AND operation.
Recomendado
Digital Control and Feedback
The four independent TS339IN channels can support limit detection and feedback decisions in a digital control system, such as comparing a power-converter control signal with a command threshold or detecting an analog setpoint outside its valid range. Its 1 pA typical input bias current reduces loading on feedback dividers, while the 5 mV typical offset establishes the comparison accuracy around the chosen threshold. Select resistor values to place both inputs inside the valid common-mode region and account for the open-drain pull-up delay when the controller samples the result.
Recomendado
General-Purpose Logic Interface
The TS339IN can translate a low-voltage analog decision into an open-drain logic signal for downstream digital circuitry. Its 1.35 V to 16 V supply range allows the comparator itself to operate from a compact system rail, while the pull-up resistor can reference a separate logic voltage. This flexibility is useful in mixed-voltage equipment. Ensure the pull-up does not exceed the output-pin voltage and sink-current limits, and use a suitable pull-up value to balance rise time, power consumption, and noise immunity. The package also provides a straightforward through-hole option for repairable assemblies.
Recomendado
Robust Through-Hole Control Module
The 14-DIP TS339IN package is suitable for industrial control modules where through-hole assembly, serviceability, and a generous pin pitch simplify manual inspection and repair. Four threshold channels can perform limit checks, fault detection, or redundant comparisons within one device. The -40°C to +125°C operating range supports demanding industrial environments, subject to the qualifications of the assembled module. Keep sensitive inputs away from relay coils, switching inductors, and high-current return paths, and use a common ground reference between the comparator and threshold sources to avoid false decisions.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TS339IN — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TS339CD | LM339 | TLC339IN |
|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | Texas Instruments | Texas Instruments |
| Package | 14-DIP | 14-DIP - same | 14-DIP - same | 14-DIP - same |
| Number of Channels | 4 | 4 | 4 | 4 |
Principais diferenciais
- Lower input loading for high-impedance sensing (vs LM339)
- Broader specified operating temperature range (vs TS339CD)
- Lower minimum supply voltage for compact systems (vs TS339CD)
Notas de projeto
The TS339IN uses open-drain outputs, so every used output requires an external pull-up resistor. Select the pull-up supply to match the receiving logic and calculate the resistor using the required sink current, rise-time limit, and output capacitance. The resistor current contributes directly to system consumption; use the largest value that still meets the required switching speed. Confirm that the pull-up voltage remains within the device's applicable output-pin rating.
Place the TS339IN close to the protected sensor or threshold network and route the two inputs as a compact differential pair over a continuous ground plane. Keep switching-node copper and high-current return paths away from the inputs because a small coupling voltage can shift a decision near the 5 mV typical input offset. Connect the bypass capacitor close to the VCC and GND pins, and maintain a low-impedance ground return between the comparator and its reference source.
Do not treat a pin-compatible replacement as an automatic electrical equivalent. Before fitting LM339 or TLC339IN in place of TS339IN, verify the input common-mode range, supply limits, output sink current, propagation delay, input bias current, and temperature grade. Also inspect the pull-up network: open-drain compatibility does not guarantee identical output timing or the same valid logic thresholds. Record the verified configuration in production documentation after substitution testing.
Informações de conformidade
No specific RoHS, REACH, lead-free, halogen-free, or conflict-minerals declaration was identified for this MPN. The part is not identified as AEC-Q100 qualified in the available manufacturer information.