STMicroelectronics TS372ID

Overview

TS372ID from STMicroelectronics is a dual low-power CMOS voltage comparator operating from 3 V to 16 V single supply or ±1.5 V to ±8 V dual supply, featuring 0.1 mA/comparator supply current, 1 pA typical input bias current, and 200 ns typical response time. It is used in battery-powered instrumentation where precision, ultra-low power, and rail-to-rail input capability (including GND) are required.

For engineers reviewing the TS372ID datasheet, TS372ID pinout, TS372ID application, or TS372ID equivalent, key selection factors include input offset voltage (≤12 mV), output compatibility with TTL/MOS/CMOS logic families, low 150 mV typical saturation voltage, wide industrial temperature range (–40°C to +125°C), and SO-8 package availability.

Technical Context

The TS372ID integrates two independent high-impedance (10¹² Ω typ) comparators fabricated using ST's silicon-gate LinMOS process, enabling optimal trade-off between speed and quiescent current. Its differential inputs support common-mode voltages down to ground, and outputs drive standard logic families directly without pull-up resistors.

Designed for low-voltage portable systems, it maintains stable performance across its full supply range (3–16 V) and temperature range (–40°C to +125°C), with input offset current ≤200 pA and input offset voltage ≤12 mV - critical for precision threshold detection in energy-constrained applications.

Key Specifications

Pinout & Package

TS372ID is supplied in an SO-8 plastic micropackage (ECOPACK® compliant), 4.9 mm × 6.0 mm body, 1.27 mm pitch, with exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual low-power voltage comparator applications.

Compared with LM393DR and TLV3702IDR, TS372ID uniquely balances 0.1 mA supply current, 200 ns speed, and GND-inclusive input range - making it optimal for industrial portable equipment requiring both precision and responsiveness within tight power budgets.

Availability

TS372ID is available at Aetrix Electronics and suitable for battery voltage monitoring, portable medical sensor interfaces, and industrial temperature controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TS372ID includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, analog ICs, MEMS, and power devices for industrial, automotive, and consumer markets.

The TS372 belongs to ST's precision analog comparator product line, engineered specifically for low-power, high-accuracy threshold detection in portable and harsh-environment electronics.

FAQ

Is TS372ID pin-compatible with TS372CD?

Yes - TS372ID and TS372CD share identical SO-8 pinout and electrical behavior. The only difference is temperature grade: TS372ID is rated for –40°C to +125°C, while TS372CD operates from 0°C to +70°C. No layout or schematic changes are needed for upgrade.

Can TS372ID drive a 10 kΩ pull-up resistor to 5 V?

Yes - with 4 mA sink capability and 150 mV typical saturation voltage, TS372ID holds output low to ≤200 mV when driving a 10 kΩ pull-up to 5 V, ensuring robust TTL/CMOS logic low-level recognition across temperature and supply variations.

What is the maximum input differential voltage for TS372ID?

The absolute maximum differential input voltage is ±18 V, as specified in Table 1. However, for reliable operation, differential input should be limited to ≤V_CC+ – V_CC– to prevent phase reversal or latch-up; typical use cases maintain <5 V differential swing.

Does TS372ID require external hysteresis for noise immunity?

Not inherently - its 200 ns propagation delay provides inherent noise rejection for slow-moving signals. However, for noisy environments (e.g., motor drives or switching supplies), adding 1–10 mV of positive feedback hysteresis via external resistors is recommended to prevent multiple toggles near threshold.