STMicroelectronics TSB622IDT

Overview

TSB622IDT from STMicroelectronics is a dual-channel, rail-to-rail output operational amplifier optimized for automotive and industrial applications. It delivers 1.7 MHz gain bandwidth, ≤1 mV input offset voltage at 25 °C, 375 μA per channel supply current at 36 V, and operates across ±0.1 V to (V_CC − 1 V) input common-mode range with −40 to 125 °C temperature rating.

For engineers reviewing the TSB622IDT datasheet, TSB622IDT pinout, TSB622IDT application, or TSB622IDT equivalent, key selection criteria include its AEC-Q100-qualified SO8 package, 36 V wide supply capability, low-power high-precision amplification in battery monitoring, sensor signal conditioning, and power supply feedback loops.

Technical Context

The TSB622IDT implements a bipolar-input, unity-gain-stable op-amp architecture with rail-to-rail output swing and input common-mode voltage extending to ground. Its 1.7 MHz GBP and 0.6 V/µs slew rate support stable closed-loop operation up to 100 kHz with capacitive loads ≤100 pF.

Designed for harsh environments, it features 4 kV HBM ESD tolerance, EMI hardening, and guaranteed performance over −40 to 125 °C. The device maintains <1.6 mV max offset drift (−40 to 125 °C) and >105 dB CMRR at 36 V supply, enabling precision DC-coupled sensing in automotive body control modules and industrial PLC analog I/O.

Key Specifications

Pinout & Package

TSB622IDT is supplied in an industry-standard SO8 (Small Outline 8-pin) package with 1.27 mm pitch, 5.0 mm × 4.0 mm footprint, and wettable flanks option available. Thermal resistance θ_JA = 125 °C/W enables operation at full rating without forced airflow.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel, rail-to-rail output operational amplifier applications.

Compared with TSB622IDT, the IST variant trades thermal performance for footprint reduction, while the IQ3T offers superior thermal dissipation and process traceability at the cost of tighter assembly control-making IDT the balanced choice for mainstream automotive and industrial designs requiring proven SO8 manufacturability.

Availability

TSB622IDT is available at Aetrix Electronics and suitable for battery management systems, automotive cabin sensors, industrial power supply feedback circuits, and motor control current sensing requiring stable component supply with AEC-Q100 compliance and long-term automotive lifecycle support.

Supply support for TSB622IDT 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 TSB622IDT belongs to ST's precision rail-to-rail op-amp product line, engineered specifically for automotive-grade signal conditioning where wide supply range, low offset, and robust EMI immunity are mandatory in safety-critical subsystems.

FAQ

Is TSB622IDT pin-compatible with other dual op-amps in SO8 packages?

No-TSB622IDT uses a non-standard SO8 pinout: V_CC− is on Pin 4 (not Pin 4 GND), and V_CC+ is on Pin 8 (not Pin 8 V_CC). Substituting with generic dual op-amps (e.g., LM358, TL072) will cause incorrect biasing or damage. Always verify pin mapping against Figure 2 and Table 2 in DS13848 Rev 3.

Does TSB622IDT support true dual-supply operation with negative voltage?

Yes-TSB622IDT operates with V_CC− as low as −18 V and V_CC+ as high as +18 V (total supply ≤36 V), enabling ±15 V operation. Input common-mode range extends to V_CC− − 0.1 V, allowing inputs below ground in dual-supply configurations without phase reversal.

What is the maximum capacitive load the TSB622IDT can drive while remaining stable?

TSB622IDT maintains ≥45° phase margin with ≤100 pF capacitive load at unity gain (per Figure 19–21, DS13848 Rev 3). Driving >100 pF requires isolation resistor (≥100 Ω) between output and load to preserve stability-critical for driving long traces or ADC input capacitance.

How does the 4 kV HBM ESD rating impact system-level protection design?

The 4 kV HBM rating applies to individual pins during handling-not system-level surge immunity. For ISO 10605 or IEC 61000-4-2 compliance, external TVS diodes (e.g., SMAJ5.0A) remain mandatory on all exposed inputs/outputs; the internal ESD structure protects only against assembly-line electrostatic discharge.