STMicroelectronics TS27M2CPT

Overview

TS27M2CPT from STMicroelectronics is a low-power CMOS dual operational amplifier in TSSOP8 package, designed for single-supply operation from 3 V to 16 V, delivering 150 µA per amplifier typical supply current, 1 MHz gain bandwidth product, and rail-to-ground output swing. It is used in battery-powered sensor signal conditioning, portable medical instrumentation, and industrial analog front-ends requiring ultra-low quiescent current.

For engineers reviewing the TS27M2CPT datasheet, TS27M2CPT pinout, TS27M2CPT application, or TS27M2CPT equivalent, key selection criteria include input offset voltage (≤2 mV max for B version), phase margin stability on capacitive loads, common-mode input range (0 V to V_CC − 1.5 V), and TSSOP8 thermal resistance (120 °C/W).

Technical Context

The TS27M2CPT implements a two-stage CMOS op-amp architecture with class-AB output stage enabling rail-to-ground output swing and stable unity-gain operation into 100 pF capacitive loads. Its input stage uses matched PMOS differential pairs yielding ultra-low input bias current (1–150 pA) and minimal drift over temperature.

It operates across 0 °C to +70 °C ambient range with supply rejection ratio ≥60 dB and common-mode rejection ratio ≥65 dB. The device supports single-supply configurations without level-shifting circuitry due to its ground-swing output and input common-mode range extending to 0 V.

Key Specifications

Pinout & Package

TSSOP8 (Thin Shrink Small Outline Package), 8-pin, 0.65 mm pitch, 3.0 × 4.4 mm body, 120 °C/W junction-to-ambient thermal resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2462IDR and LMV358IDR, TS27M2CPT uniquely balances ultra-low ICC (150 µA), guaranteed rail-to-ground output, and 1 MHz GBW - making it optimal for long-life, single-supply, precision analog sensing where both power and DC accuracy are constrained.

Availability

TS27M2CPT is available at Aetrix Electronics and suitable for portable medical devices, industrial 4–20 mA transmitters, smart fire safety systems, and low-power environmental data loggers requiring stable component supply across extended production lifecycles.

Supply support for TS27M2CPT 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, power management devices, and MEMS sensors for industrial, automotive, and consumer markets.

The TS27x2 series was developed specifically for ultra-low-power analog signal conditioning in battery-constrained and single-supply systems, emphasizing input bias current stability, supply voltage flexibility, and capacitive-load robustness over raw speed.

FAQ

What is the maximum capacitive load the TS27M2CPT can drive while maintaining stability?

The TS27M2CPT maintains ≥45° phase margin with up to 100 pF capacitive load at unity gain, as verified in Figure 11 of the datasheet. For loads exceeding 100 pF, a series resistor (≥100 Ω) between output and capacitance restores stability without degrading DC accuracy.

Does the TS27M2CPT support true rail-to-rail input operation?

No - the input common-mode voltage range is specified as 0 V to V_CC − 1.5 V. While the output swings to ground, the inputs cannot accept signals within 1.5 V of V_CC. This limits use with full-scale single-supply sensor outputs but remains sufficient for most 0–V_CC/2 bridge and thermistor configurations.

Can TS27M2CPT operate from a 3.3 V supply while driving a 10 kΩ load?

Yes - at V_CC = 3.3 V, the device delivers VOH ≥ 2.5 V and VOL ≤ 50 mV into 10 kΩ (per Table 3), supporting direct interfacing with 3.3 V logic and ADC references. Supply current remains ~150 µA/op, preserving battery life in always-on modes.

Is the TS27M2CPT pin-compatible with other TS27x2 variants in TSSOP8?

Yes - all TS27M2x variants (C/I/M suffixes) and TS27M2A/B versions share identical TSSOP8 pinout, electrical connections, and mechanical footprint. Only electrical parameters (V_io, I_ib, temperature grade) differ; no layout change is needed when upgrading to tighter-spec versions.