STMicroelectronics TS912AIYDT

Overview

TS912AIYDT from STMicroelectronics is a rail-to-rail input/output CMOS dual operational amplifier designed for single-supply (2.7–16 V) or split-supply operation in precision analog signal conditioning. It delivers 2 mV max input offset voltage, 1 pA typical input bias current, and rail-to-rail output swing within 40 mV of supply rails (RL = 10 kΩ), enabling accurate low-voltage sensor interfacing in automotive body control modules.

For engineers reviewing the TS912AIYDT datasheet, TS912AIYDT pinout, TS912AIYDT application, or TS912AIYDT equivalent, key selection criteria include its AEC-Q100-qualified SO-8 automotive-grade packaging, guaranteed 125 °C operating temperature range, rail-to-rail input common-mode range (VCC− −0.2 V to VCC+ +0.2 V), and 0.8–1.4 MHz gain-bandwidth product across 3–10 V supply.

Technical Context

The TS912AIYDT implements a two-stage CMOS input stage with complementary differential pairs, enabling rail-to-rail input common-mode operation down to VCC− and up to VCC+. Its output stage uses current-limited push-pull architecture, delivering ±40 mA sink/source capability at 3 V while maintaining 30–40° phase margin across load conditions.

It features internal ESD protection rated at 3 kV HBM and latch-up immunity per JEDEC JESD78. The device is characterized over −40 °C to +125 °C and specified for 600 Ω and 100 Ω loads, supporting direct driving of low-impedance transducers and ADC reference buffers without external level-shifting.

Key Specifications

Pinout & Package

TS912AIYDT is housed in an automotive-grade SO-8 package (ECOPACK® compliant, 4.9 mm × 6.0 mm × 1.75 mm height), qualified per AEC-Q100 Grade 1 (−40 °C to +125 °C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual rail-to-rail CMOS op-amp applications.

Compared with LMV932IDR and MCP6022-E/SN, TS912AIYDT uniquely combines AEC-Q100 Grade 1 qualification, 2 mV precision, and 600 Ω load drive capability-making it the only choice for safety-critical automotive analog signal chains requiring guaranteed performance at 125 °C.

Availability

TS912AIYDT is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor signal conditioning, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TS912AIYDT 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, power ICs, sensors, and analog components for automotive, industrial, and consumer markets.

The TS912 series belongs to ST's precision analog portfolio, engineered specifically for rail-to-rail performance in harsh-environment applications where low input bias current, wide supply range, and automotive qualification are mandatory.

FAQ

What is the maximum capacitive load the TS912AIYDT can drive without instability?

The TS912AIYDT is stable with up to 100 pF capacitive load when driving 10 kΩ resistive loads, as verified in Figure 8 (gain/phase vs. frequency). For loads exceeding 100 pF, a series isolation resistor (≥100 Ω) between output and capacitance is required to maintain ≥30° phase margin, per design guidelines in Section 4.2 of the datasheet.

Does TS912AIYDT support true single-supply operation with input voltages extending to ground?

Yes. The input common-mode range extends from VCC− −0.2 V to VCC+ +0.2 V, allowing valid operation with inputs at 0 V when VCC− = 0 V (single-supply mode). This enables direct interfacing with ground-referenced sensors such as thermocouples or resistive bridges without level-shifting circuitry.

How does the output short-circuit current limit behave under thermal stress?

The TS912AIYDT incorporates internal current limiting that caps output sink/source to approximately 40–75 mA depending on supply voltage (e.g., 40 mA at 3 V, 75 mA at 10 V). Under sustained short-circuit, junction temperature rise is managed by Rthja = 125 °C/W (SO-8), requiring derating above 85 °C ambient to avoid thermal shutdown.

Can TS912AIYDT replace TS912IDT in existing designs?

Yes, TS912AIYDT is a direct functional and pin-compatible upgrade to TS912IDT, adding AEC-Q100 Grade 1 qualification, tighter 2 mV max Vio (vs. 12 mV for TS912), and enhanced ESD robustness (3 kV HBM). No layout or schematic changes are needed, but validation per automotive environmental test profiles is recommended.