STMicroelectronics TS862AID

Overview

TS862AID from STMicroelectronics is a dual rail-to-rail micropower BiCMOS comparator operating from 2.7 V to 10 V, consuming only 6 µA per channel at 2.7 V, delivering 500 ns propagation delay with 100 mV overdrive, and featuring push-pull outputs that eliminate external pull-up resistors-ideal for low-power smoke detectors and portable communication systems.

For engineers reviewing the TS862AID datasheet, TS862AID pinout, TS862AID application, or TS862AID equivalent, key selection criteria include ultra-low supply current, rail-to-rail input common-mode range (VCC − 0.3 V to VCC + 0.3 V), push-pull output drive capability up to 5 mA, input offset voltage ≤10 mV (A-grade), and SO-8 package compatibility with industrial temperature range (−40 °C to +85 °C).

Technical Context

The TS862AID implements two independent high-speed BiCMOS comparators with rail-to-rail CMOS inputs enabling full-supply-range sensing, and push-pull CMOS outputs capable of sourcing/sinking 2.5 mA (at 2.7 V) or 5 mA (at 5 V/10 V) without external components. Its architecture achieves 240 dB large-signal voltage gain and 70–75 dB common-mode rejection across 0–10 V common-mode input range.

Designed for battery-critical applications, it maintains stable 6–10 µA per-channel supply current across 2.7–10 V supply and −40 °C to +85 °C, with input offset drift of only 6 µV/°C and latch-up immunity compliant to Class A per JEDEC JESD78. Propagation delay varies from 0.4 µs (100 mV overdrive) to 3 µs (10 mV overdrive) depending on supply and overdrive conditions.

Key Specifications

Pinout & Package

TS862AID is supplied in an SO-8 package (8-pin small outline integrated circuit) with standard 1.27 mm pitch, 5.0 mm × 4.0 mm body, and gull-wing leads. Thermal resistance junction-to-ambient is 125 °C/W (JEDEC std). Pin functions are validated per STMicroelectronics Doc ID 6422 Rev 3, Figure 25 and Table 7.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual micropower rail-to-rail comparator applications.

Compared with LMV393IDR and TLV3702CDR, TS862AID uniquely balances 6 µA current, 0.4 µs speed, rail-to-rail inputs, and push-pull outputs in SO-8-making it optimal for compact, long-life, high-accuracy threshold detection where BOM simplification matters.

Availability

TS862AID is available at Aetrix Electronics and suitable for battery-powered alarms, portable communication systems, smoke/gas detectors, and portable computer subsystems requiring stable component supply across extended production lifecycles.

Supply support for TS862AID 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 analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

TS862AID belongs to the TS86x rail-to-rail micropower comparator family, engineered specifically for energy-constrained sensing and monitoring applications where ultra-low current, precision thresholding, and minimal external components are mandatory.

FAQ

What is the maximum operating supply voltage for TS862AID?

The absolute maximum supply voltage is 12 V, but the guaranteed operational range is 2.7 V to 10 V per datasheet Table 2. Operation above 10 V voids parametric guarantees and risks exceeding junction temperature limits due to increased ICC and power dissipation.

Does TS862AID require external pull-up resistors on its outputs?

No. TS862AID features true push-pull CMOS outputs capable of sourcing and sinking up to 5 mA (at 5 V), allowing direct connection to microcontroller GPIOs or logic inputs without external pull-up resistors-reducing component count and standby leakage.

How does the input offset voltage change with temperature?

Input offset voltage drift is specified as 6 µV/°C (typ.) across −40 °C to +85 °C. Over the full temperature range, total offset variation remains within ±0.7 mV for the A-grade version, ensuring stable threshold accuracy in unregulated environments like outdoor smoke detectors.

Can TS862AID drive capacitive loads such as long PCB traces or scope probes?

Yes, but with caution: datasheet Figure 13–14 confirm stable operation with 50 pF load capacitance at 10 kHz. For >100 pF loads, rise/fall times degrade (TR/TF = 20 ns typ. at 50 pF), and oscillation may occur; add a 10–100 Ω series resistor near the output if driving >100 pF.