TS374IN - Low-Power Quad CMOS Comparator | STMicroelectronics
MPN： TS374IN ✓ 啟用中TS374IN 概覽
A voltage comparator is an analog semiconductor that evaluates two input voltages and changes its output state when one input crosses the other. Quad comparators integrate four independent channels into one package, providing efficient threshold detection, window monitoring, and signal conditioning. Within the electronics hierarchy, the TS374IN belongs to the comparator family of analog and mixed-signal ICs, where precision voltage sensing interfaces with digital control systems.
The TS374IN provides four independent precision channels in one 14-DIP package. Its input impedance of 10^12 ohms typical minimizes loading on high-impedance sensor and divider networks. A 200 ns typical response time supports faster decision-making in monitoring and control circuits, while the open-drain output architecture permits wired logic, pull-up integration, and multi-node signal combinations.
The STMicroelectronics silicon lin MOS process gives the device its low-power operating characteristics and favorable consumption-speed ratio. Each comparator can operate from single or dual supplies, allowing the TS374IN to suit low-voltage logic systems as well as broader analog interfaces. Open-drain outputs support CMOS, MOS, and TTL-compatible downstream logic when suitable pull-up devices are used.
Typical uses include four-channel threshold monitoring, sensor-signal conditioning, overvoltage detection, window comparators, industrial control interfaces, and general digital logic interfaces. The high input impedance is especially useful when the comparator must observe a high-impedance divider or sensor without materially affecting its operating point. The 14-DIP through-hole package also simplifies prototype construction and legacy PCB maintenance.
When using open-drain outputs, include the appropriate pull-up resistor on each channel and account for its effect on rise time. Common-mode voltage limits, supply voltage, and output sink-current requirements must also be checked against the circuit operating conditions. The TS374IN datasheet pin description should be used directly when assigning PCB connections.
This product data combines the STMicroelectronics family description with package, interface, and electrical characteristics, then adds application guidance, pin-use cautions, and a structured comparison framework to support practical design decisions.
直接替換替代品，適用於 TS374IN — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
TS374IN 最大額定值與電氣特性
| Comparator Count | 4 independent comparators |
| Product Type | Low-power quad CMOS voltage comparator |
| Supply Configuration | Single or dual supply |
| Comparator Architecture | Precision differential comparator |
| Process Technology | Silicon lin MOS |
| Input Impedance | 10^12 ohm typical |
| Response Time | 200 ns typical |
| 輸出類型 | Open-drain |
| Logic Compatibility | CMOS, MOS, and TTL compatible |
| Supply Voltage Range | ±8 V to 16 V |
| 工作溫度範圍 | -40 °C to +125 °C |
| Package Type | 14-DIP |
| Package Pitch | 7.62 mm |
| Package Width | 0.300 inch |
| 安裝類型 | Through-hole |
TS374IN 0.300 inch 腳位配置指南
TS374IN（0.300 inch 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： TS374IN.
請參閱 資料表 以查看完整腳位配置。
典型應用
TS374IN 適用於 6 應用s: High-Impedance Sensor Threshold Detection, Industrial Overvoltage and Undervoltage Monitoring, Window Voltage Comparator, Digital Logic Interface Conditioning, Battery and Power-System Monitoring, Legacy Control and Measurement Systems.
High-Impedance Sensor Threshold Detection
The TS374IN suits sensor interfaces where the comparator must detect a threshold without significantly loading the measured signal. Its typical 10^12 ohm input impedance helps preserve the operating point of high-source-impedance dividers or sensing elements, while four independent channels can monitor multiple conditions. The open-drain output is pulled up to the required logic level and used to drive a controller input. Designers must verify that the sensor voltage remains inside the specified common-mode range and that the selected pull-up produces an acceptable switching edge.
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Industrial Overvoltage and Undervoltage Monitoring
The TS374IN can implement independent overvoltage and undervoltage checks in industrial monitoring equipment by comparing divided supply or signal voltages against reference thresholds. Four channels reduce the component count compared with separate single comparators. The 200 ns typical response time permits rapid state changes, while the open-drain outputs can feed discrete logic or be combined where wired-OR behavior is acceptable. The PCB should keep high-impedance threshold networks away from switching nodes, and the complete power range must be checked against the specified ±8 V to 16 V operating description.
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Window Voltage Comparator
Two TS374IN channels can be used to establish upper and lower limits for an analog voltage, creating a window-comparator function for valid-range detection. The other two channels remain available for related alarms or control decisions. With a typical input impedance of 10^12 ohms, the input divider can be designed with relatively high resistance values when necessary, reducing loading of the monitored source. Response time is typically 200 ns, and open-drain pull-ups should be sized to balance logic compatibility, sink current, and the allowable rise time at the receiving device.
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Digital Logic Interface Conditioning
The TS374IN provides a bridge between an analog decision point and digital control logic through its differential inputs and open-drain outputs. CMOS, MOS, and TTL-compatible interfacing allows the output pull-up to establish the appropriate logic-high level for the receiving circuit. Four independent channels can clean multiple control or status signals in one 14-DIP package. Layout should keep comparator inputs short, route them away from fast switching edges, and provide a stable ground reference so output transitions reflect the intended input comparison rather than ground bounce or coupled noise.
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Battery and Power-System Monitoring
The four-channel TS374IN architecture is useful for battery-powered equipment that must monitor several rails, pack thresholds, charger states, or system faults. Its low-power CMOS design is appropriate for systems where continuous comparator current matters, and its typical 200 ns response supports prompt protection decisions. Each open-drain output can drive a suitable pull-up or fault-summary node. The exact supply voltage, common-mode range, and output current limits should be confirmed from the datasheet because battery cells and industrial rails can exceed the permitted operating conditions.
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Legacy Control and Measurement Systems
The through-hole 14-DIP package makes the TS374IN practical for legacy control boards, test fixtures, and measurement systems that require four discrete threshold-detection functions without extensive PCB redesign. The four independent precision channels reduce wiring complexity, and the high input impedance is advantageous for source impedance-sensitive measurement circuits. Open-drain outputs provide flexible pull-up integration for older CMOS or TTL-based logic. Prototype and maintenance designs should follow the manufacturer pin description and account for insertion cleanliness, socket contact, and lead spacing of 7.62 mm.
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工程參考資料，適用於 TS374IN — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | TS374CN |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Package | 14-DIP | 14-DIP |
| Comparator Count | 4 independent channels | 4 independent channels |
| Product Type | Low-power quad CMOS voltage comparator | Low-power quad CMOS voltage comparator |
| Supply Configuration | Single or dual supply | Single or dual supply |
| Input Impedance | 10^12 ohm typical | 10^12 ohm typical |
| Response Time | 200 ns typical | 200 ns typical |
| Output Type | Open-drain | Open-drain |
| Supply Voltage Range | ±8 V to 16 V | ±8 V to 16 V |
| Logic Compatibility | CMOS, MOS, and TTL compatible | CMOS, MOS, and TTL compatible |
主要差異化特點
- Four independent precision channels in one through-hole package (對比TS374CN)
- High input impedance for threshold sensing (對比TS374CN)
- Fast open-drain decision output (對比TS374CN)
設計說明
Do not treat four open-drain outputs as push-pull outputs. Add the correct pull-up on every channel that must produce a logic-high state, and confirm that the pull-up voltage remains within the output and supply ratings. If several channels share one pull-up, their combined sink current and wired-logic behavior must be checked. The manufacturer TS374 datasheet should be used to verify output current, input common-mode limits, and absolute maximum conditions before finalizing the circuit.
Keep comparator input traces short and route them away from switching-node copper, inductors, high-current return paths, and connector entry points. High input impedance reduces loading but does not prevent electromagnetic pickup, so a grounded guard or shield may help around sensitive threshold networks. Place the output pull-up close to the associated open-drain output and provide a low-impedance ground path so the 200 ns device response is not undermined by parasitic inductance or board capacitance.
Confirm the supply rails and all input voltages against the TS374IN operating limits before enabling the comparator. The family is described for single- or dual-supply operation and a ±8 V to 16 V range, but the selected configuration still requires attention to input common-mode limits and supply sequencing. Estimate the average power from the actual supply voltage and channel activity, then include pull-up dissipation and account for adjacent-channel current when planning the board's power budget.
An open-drain output changes from low to high only after the pull-up charges the connected node capacitance, so its rising edge may be much slower than the typical 200 ns comparator response. Choose the pull-up value using the permitted sink current, desired logic level, receiver threshold, trace capacitance, and maximum transition-time requirement. Place a small bypass capacitor near the device supply pins where appropriate and avoid long pull-up routes that increase distributed capacitance and susceptibility to coupled noise.
合規資訊
Compliance attributes were not identified in the manufacturer product page or the TS374 datasheet description.