STMicroelectronics TSB612IYDT

Overview

TSB612IYDT from STMicroelectronics is a dual, rail-to-rail output, low-power operational amplifier optimized for automotive and industrial signal conditioning. It delivers 560 kHz gain bandwidth product, 1 mV max input offset voltage, 125 μA max supply current per channel at 36 V, and operates from 2.7 V to 36 V over –40 °C to +125 °C - enabling precision sensing in battery-powered and high-voltage power supply monitoring circuits.

For engineers reviewing the TSB612IYDT datasheet, TSB612IYDT pinout, TSB612IYDT application, or TSB612IYDT equivalent, this page provides verified pin functions, real-world design meanings of key specs (e.g., 100 mV output swing headroom at 36 V), automotive-qualified thermal stability, and validated alternatives for space-constrained, high-reliability analog front-ends.

Technical Context

The TSB612IYDT integrates two independent amplifiers in a single SO8 package, each featuring input common-mode range extending to ground and rail-to-rail output swing - supporting single-supply operation in sensor interfaces and current-sense amplification. Its unity-gain stable architecture ensures robust performance with capacitive loads up to 100 pF without external compensation.

Designed for extended temperature operation, it maintains ≤1.6 mV input offset voltage and ≥100 dB CMRR across –40 °C to +125 °C, while its 4 kV HBM ESD rating and 10 mA absolute max input current support direct connection to noisy automotive subsystems when series current-limiting resistors are applied.

Key Specifications

Pinout & Package

TSB612IYDT is housed in an SO8 (Small Outline 8-pin) package with standard 1.27 mm pitch, RoHS-compliant and ECOPACK® qualified. Pin 1 is marked by a notch or dot; top-view pin numbering follows conventional IC orientation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual, rail-to-rail output, high-voltage op amp applications.

Compared with LM2904BQDRQ1, TSB612IYDT trades 2.1× lower bandwidth for 3.6× lower quiescent current and tighter offset (1 mV vs. 3 mV max), making it optimal for always-on, precision, low-power automotive sensing - whereas the LM2904BQDRQ1 suits higher-speed control loops where current draw is secondary.

Availability

TSB612IYDT is available at Aetrix Electronics and suitable for automotive battery management, industrial current sensing, power supply feedback loops, and temperature sensor interfaces requiring stable component supply across extended temperature and voltage ranges.

Supply support for TSB612IYDT 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, analog components, and MEMS sensors for automotive, industrial, and consumer markets.

The TSB612IYDT belongs to ST's TSB61x family of high-voltage, low-power op amps - engineered specifically for automotive-grade signal conditioning where extended supply range, rail-to-rail output, and guaranteed operation at 125 °C are mandatory.

FAQ

Is TSB612IYDT pin-compatible with TSB611IYDT?

Yes - both share identical SO8 pinout and electrical specifications except channel count: TSB611IYDT is a single-channel device (pins 1–4 used), while TSB612IYDT uses all eight pins for dual channels. Layout reuse is possible by grounding unused pins on TSB611IYDT designs.

What is the maximum capacitive load the TSB612IYDT can drive without oscillation?

At 36 V supply, the TSB612IYDT remains stable with ≤100 pF capacitive load when driving a 10 kΩ resistive load. For loads >100 pF, a series isolation resistor (e.g., 10–100 Ω) between output and capacitance is recommended per Figure 35 in DS11136 Rev 4.

Does TSB612IYDT support true single-supply operation with input signals at ground?

Yes - its input common-mode range extends to VCC– (ground) and up to VCC+ – 1 V, allowing direct connection of grounded sensors like thermistors or shunt resistors without external biasing networks or level shifters.

How does the 4 kV HBM ESD rating impact PCB layout for automotive use?

The 4 kV HBM rating permits direct routing of inputs to connectors or harnesses, but input current must be limited to ≤10 mA using series resistors (e.g., 1 kΩ minimum for ±40 V transients) to prevent damage to internal ESD diodes - per Section 4.6 of DS11136 Rev 4.