STMicroelectronics

TS3702CD

TS3702CD Description

The TS3702CD from STMicroelectronics is a dual general-purpose comparator designed for precision applications requiring low power consumption and high performance. Packaged in an 8-SOIC tube, this obsolete but still relevant IC operates within a wide supply voltage range of 2.7V to 16V (single) or ±1.35V to 8V (dual), making it versatile for both single and split-rail designs. With a quiescent current as low as 25µA (max), it is optimized for battery-powered and energy-efficient systems. The device offers low input offset voltage (5mV max @ 10V) and ultra-low input bias current (1pA max @ 5V), ensuring accuracy in signal conditioning and sensing applications.

TS3702CD Features

• Low Power Consumption: Quiescent current of 25µA (max) extends battery life in portable devices.
• High CMRR (82dB): Excellent common-mode rejection minimizes noise interference in differential signal processing.
• Wide Supply Range: Supports 2.7V–16V (single) or ±1.35V–8V (dual), accommodating diverse power configurations.
• Low Input Bias Current (1pA): Ideal for high-impedance sensor interfaces and precision circuits.
• ROHS3 Compliant & REACH Unaffected: Meets environmental standards despite its obsolete status.
• Robust Packaging: 8-SOIC tube ensures mechanical durability and ease of handling in surface-mount applications.

TS3702CD Applications

• Battery-Powered Systems: Energy-efficient comparators for portable medical devices, IoT sensors, and wearables.
• Signal Conditioning: Precision threshold detection in industrial control systems and instrumentation.
• Window Comparators: Dual-element design enables voltage monitoring and fault detection in automotive or power management circuits.
• Sensor Interfaces: Ultra-low input bias current makes it suitable for photodiode amplifiers and piezoelectric sensors.
• Consumer Electronics: Used in low-voltage logic level shifting and wake-up circuits.

Conclusion of TS3702CD

The TS3702CD stands out for its low-power operation, high CMRR, and wide voltage range, making it a reliable choice for precision applications despite its obsolete status. Its dual comparator configuration and minimal input error characteristics are particularly valuable in battery-driven and noise-sensitive designs. Engineers seeking a cost-effective, high-performance solution for sensing, monitoring, or signal processing will find this IC well-suited to their needs. While newer alternatives exist, the TS3702CD remains a proven option for legacy or low-volume production runs.