STMicroelectronics TS883IST

Overview

TS883IST from STMicroelectronics is a dual nanopower open-drain comparator in MiniSO8 package, designed for ultra-low-power signal threshold detection in battery-constrained systems. It delivers 250 nA typical supply current per channel, rail-to-rail input operation from 0.9 V to 5.5 V supply, and 2 µs typical propagation delay at 100 mV overdrive with 10 kΩ pull-up. Used in portable medical sensors and low-voltage battery monitoring circuits.

For engineers reviewing the TS883IST datasheet, TS883IST pinout, TS883IST application, or TS883IST equivalent, key selection criteria include its dual-channel nanopower consumption, open-drain output compatibility with mixed-voltage logic, rail-to-rail input range down to 0.9 V, and guaranteed operation across –40 °C to +125 °C industrial temperature range.

Technical Context

The TS883IST integrates two independent comparators sharing no internal biasing-each operates autonomously with dedicated inputs and open-drain outputs. Its input stage uses a rail-to-rail CMOS topology enabling valid operation with common-mode voltages as low as (VCC−) − 0.2 V and as high as (VCC+) + 0.2 V at VCC = 0.9 V, and full rail-to-rail range at higher supplies.

Each comparator features built-in 2.5–4.2 mV hysteresis (typ. 2.7 mV at 2.7 V), 1 µV/°C input offset drift, and output sink capability up to 22 mA at 2.7 V. Propagation delay varies with pull-up resistance and overdrive: 1.9–3 µs (low-to-high) and 1.7–2.5 µs (high-to-low) at 100 mV overdrive and 10 kΩ pull-up.

Key Specifications

Pinout & Package

TS883IST is housed in an 8-pin MiniSO (SOIC-8 narrow) package with standard 1.27 mm pitch, RoHS-compliant and ECOPACK2 qualified.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual nanopower open-drain comparator applications.

Compared with TLV7032DR and MAX9062ASA+, TS883IST uniquely combines sub-1 V operation, integrated hysteresis, and dual open-drain outputs-making it the only choice for long-life, multi-threshold detection in coin-cell or single-cell systems where board space and external components must be minimized.

Availability

TS883IST is available at Aetrix Electronics and suitable for portable medical devices, battery management systems, and industrial sensor nodes requiring stable component supply across extended product lifecycles.

Supply support for TS883IST 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, specializing in intelligent power, sensing, and control solutions for industrial, automotive, and consumer markets.

The TS88x series belongs to ST's nanopower analog portfolio, engineered specifically for energy-constrained applications where microampere-level current budgets and wide supply flexibility are mandatory design constraints.

FAQ

What is the maximum sink current capability of TS883IST at 1.2 V supply?

At VCC = 1.2 V, TS883IST delivers a minimum sink current of 3.6 mA (typical) with output voltage low ≤50 mV at 0.2 mA load. This enables direct driving of low-threshold logic inputs or small indicator LEDs without additional buffering, while maintaining nanowatt-scale quiescent consumption in idle states.

Can TS883IST operate with a single 1.0 V supply?

Yes. TS883IST is fully specified down to 0.9 V supply and functions reliably at 1.0 V, supporting rail-to-rail input common-mode range and delivering 250 nA typical supply current per channel. This makes it suitable for emerging ultra-low-voltage energy-harvesting systems powered by thermoelectric or piezoelectric sources.

Does TS883IST require external hysteresis resistors?

No. TS883IST integrates 2.5–4.2 mV of internal hysteresis (typ. 2.7 mV), eliminating the need for external feedback components. This simplifies PCB layout, reduces bill-of-materials cost, and improves reliability in space-constrained portable designs such as hearing aids and ingestible sensors.

How does the propagation delay change with supply voltage?

Propagation delay increases slightly as supply voltage decreases: TPLH is 2.0 µs typ. at 5 V and 2.5 µs typ. at 0.9 V (100 mV overdrive, 10 kΩ pull-up). This predictable, monotonic behavior allows deterministic timing margining across the full 0.9–5.5 V operating range without recalibration.