STMicroelectronics TS372CD

Overview

TS372CD from STMicroelectronics is a dual low-power CMOS voltage comparator in SO-8 package, operating from 3 V to 16 V single supply (or ±1.5 V to ±8 V dual), with 0.1 mA/comparator supply current, 1 pA typical input bias current, and 200 ns typical response time. It supports battery-powered portable electronics requiring rail-to-rail input common-mode range including GND and TTL/MOS/CMOS-compatible push-pull outputs.

For engineers reviewing the TS372CD datasheet, TS372CD pinout, TS372CD application, or TS372CD equivalent, key selection criteria include ultra-low quiescent current, sub-picoampere input bias, input offset voltage ≤12 mV, output saturation voltage ≤700 mV at 4 mA, and guaranteed operation across 0°C to +70°C industrial temperature range.

Technical Context

The TS372CD integrates two independent precision comparators fabricated using ST's silicon-gate LinMOS process, enabling high-speed switching with minimal power consumption. Its differential input stage delivers 1 pA typical input bias current and 1 pA typical input offset current, while maintaining input common-mode voltage range extending to ground.

Output stage provides push-pull drive compatible with TTL, MOS, and CMOS logic families, with low saturation voltage (100–700 mV at I_OL = 4 mA) and fast 200 ns propagation delay for TTL-level transitions under 5 V supply and 15 pF load.

Key Specifications

Pinout & Package

TS372CD is housed in an 8-pin SO-8 plastic micropackage (ECOPACK® compliant), measuring 4.90 mm × 6.00 mm × 1.75 mm (max height), with 1.27 mm lead pitch and gull-wing terminations.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM393DR and TLV3702IDR, TS372CD uniquely balances 3–16 V operation, ground-referenced inputs, and pA-level bias-making it optimal for unregulated multi-voltage portable systems where sensor fidelity and long service life are mandatory.

Availability

TS372CD is available at Aetrix Electronics and suitable for battery voltage monitoring, portable device power sequencing, and low-power sensor threshold detection requiring stable component supply across industrial temperature ranges.

Supply support for TS372CD 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, designing and manufacturing microcontrollers, analog ICs, power management, and MEMS sensors for automotive, industrial, and consumer markets.

The TS372 belongs to ST's precision analog comparator product line, engineered specifically for ultra-low-power, ground-sensing applications in portable and energy-constrained systems.

FAQ

What is the maximum supply voltage for TS372CD?

The absolute maximum supply voltage is 18 V, but recommended operating range is 3 V to 16 V for single supply or ±1.5 V to ±8 V for dual supply. Exceeding 16 V risks exceeding power dissipation limits in SO-8 package, especially at elevated ambient temperatures.

Can TS372CD operate with input voltages below ground?

No. The input common-mode voltage range extends down to GND but not below it. Inputs must remain ≥0 V when referenced to V_CC− (GND). For negative input signals, external level-shifting circuitry or dual-supply configuration with negative rail is required.

Is the output of TS372CD open-drain or push-pull?

TS372CD features a push-pull (totem-pole) output stage, not open-drain. It actively drives both high and low states, eliminating the need for external pull-up resistors and ensuring full-rail CMOS/TTL compatibility with defined VOH and VOL specifications.

How should unused comparator channels be handled?

An unused comparator must be configured with a differential input voltage >100 mV (e.g., tie inverting input to V_CC+, non-inverting to GND) to prevent oscillation. Leaving inputs floating or near-equal violates the input common-mode specification and may cause erratic output behavior or increased supply current.