STMicroelectronics TS912BID

Overview

TS912BID from STMicroelectronics is a rail-to-rail input/output CMOS dual operational amplifier operating from 2.7 V to 16 V single or dual supply, featuring 2 mV max input offset voltage, 1 pA typical input bias current, and 200 μA per amplifier supply current at 3 V. It drives 600 Ω loads with rail-to-rail output swing (VCC− +300 mV / VCC+ −400 mV), enabling precision signal conditioning in low-power sensor interfaces.

For engineers reviewing the TS912BID datasheet, TS912BID pinout, TS912BID application, or TS912BID equivalent, key selection criteria include rail-to-rail I/O capability under 3 V operation, ultra-low input bias current for high-impedance sources, guaranteed 2 mV Vio max over temperature, and SO-8 package compatibility with space-constrained industrial analog front-ends.

Technical Context

The TS912BID employs a CMOS input stage delivering 1 pA typical input bias current and rail-to-rail common-mode input range (VCC− −0.2 V to VCC+ +0.2 V). Its output stage achieves rail-to-rail swing with specified load-dependent headroom: 300 mV above VCC− and 400 mV below VCC+ at 600 Ω.

It features 1.4 MHz gain-bandwidth product at 10 V supply, 0.8 V/μs slew rate (SR+), and 40° phase margin with 10 kΩ load-enabling stable unity-gain buffer and active filter configurations across its full 2.7–16 V supply range and −40 °C to +125 °C operating temperature.

Key Specifications

Pinout & Package

TS912BID is supplied in an SO-8 plastic micropackage (ECOPACK® compliant), 4.8–5.0 mm × 5.8–6.2 mm body, 1.27 mm pitch, 1.25 mm height, suitable for automated SMT assembly and thermal management up to 125 °C ambient.

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 TS912ID and MCP6022-I/SN, TS912BID uniquely combines 2 mV Vio max, 1 pA Iib, and 1.4 MHz GBW in SO-8 - making it optimal for precision, wide-supply, and moderate-bandwidth industrial analog signal chains where calibration overhead must be minimized.

Availability

TS912BID is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, automotive cabin environment monitoring, and smart home gas detection systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TS912BID 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.

The TS912 series belongs to ST's precision analog portfolio, engineered specifically for rail-to-rail performance in low-voltage, low-power industrial and automotive signal conditioning applications where input bias current and offset voltage directly impact measurement fidelity.

FAQ

What is the maximum capacitive load the TS912BID can drive without instability?

The TS912BID is characterized for stable operation with up to 100 pF capacitive load when driving a 10 kΩ resistive load, as verified in Figure 8 (Gain/Phase vs. Frequency) and Figure 11 (RL = 600 Ω). Driving larger capacitive loads requires isolation resistance (≥100 Ω) between amplifier output and capacitor to maintain ≥30° phase margin, per design guidelines in Section 4.1 of the datasheet.

Does TS912BID support true single-supply operation with input voltages down to ground?

Yes. The TS912BID's rail-to-rail input stage accepts common-mode voltages from VCC− −0.2 V to VCC+ +0.2 V, enabling direct connection to ground (VCC−) in single-supply configurations. This is confirmed in Table 2 (Operating Conditions) and validated across −40 °C to +125 °C, allowing zero-input-referenced sensor interfaces without level-shifting.

How does the output short-circuit current limit behave under 12 V supply?

At VCC = 12 V, the internal current-limit circuit restricts output sink/source to approximately 65 mA, consistent with the 65 mA value specified in Table 5 (VCC+ = 10 V) and extrapolated performance in Figures 6–7. This fixed limit protects the device during sustained shorts while maintaining thermal safety up to +125 °C ambient, as defined by Rthja = 125 °C/W for SO-8.

Is the TS912BID qualified for automotive applications?

No. TS912BID is rated for industrial temperature range (−40 °C to +125 °C) but lacks AEC-Q100 qualification. For automotive use, ST offers the TS912BIYDT variant (listed in Table 8), which undergoes additional screening per AEC-Q001/Q002 and is marked "912BY" - confirming its suitability for passenger compartment electronics where reliability under vibration and thermal cycling is mandatory.