STMicroelectronics TSB622IYDT

Overview

TSB622IYDT from STMicroelectronics is a dual-channel, rail-to-rail output operational amplifier designed for precision signal conditioning in automotive and industrial power supply monitoring circuits. It delivers 1.7 MHz gain bandwidth, ≤1 mV input offset voltage at 25 °C, 375 μA/channel supply current at 36 V, and operates across –40 to +125 °C with 2.7–36 V supply range.

For engineers reviewing the TSB622IYDT datasheet, TSB622IYDT pinout, TSB622IYDT application, or TSB622IYDT equivalent, key selection criteria include its AEC-Q100 qualified SO8 package, rail-to-rail output swing into 10 kΩ loads, input common-mode range extending to ground, and EMI-hardened architecture for noisy automotive environments.

Technical Context

The TSB622IYDT integrates two independent high-voltage op-amps in a single SO8 package, each featuring unity-gain stability, 1.7 MHz GBP, and 0.6 V/µs slew rate at 36 V. Its input stage supports common-mode voltages from VCC− −0.1 V to VCC+ −1 V, enabling direct sensing at ground-referenced nodes.

It employs a robust bipolar input stage with 15–30 nA input bias current and achieves 105–135 dB supply voltage rejection ratio (SVR) and 105–130 dB common-mode rejection ratio (CMRR) over temperature, ensuring stable DC accuracy in varying supply and noise conditions.

Key Specifications

Pinout & Package

TSB622IYDT is housed in an industry-standard SO8 (Small Outline 8-pin) package with exposed pad option, measuring 4.9 × 6.0 mm, 1.75 mm height, and 1.27 mm lead pitch. The package supports automated optical inspection (AOI) and reflow soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TSB622IDT, TSB622IYDT provides documented AEC-Q100 qualification and enhanced traceability for automotive production; versus TSB622IST, it offers superior thermal dissipation (125 °C/W vs. 190 °C/W R_thJA) and legacy SO8 compatibility in existing layouts.

Availability

TSB622IYDT is available at Aetrix Electronics and suitable for automotive body control modules, industrial power supply monitors, and motor control feedback circuits requiring stable component supply across extended temperature and voltage ranges.

Supply support for TSB622IYDT 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 TSB62x series belongs to ST's high-voltage, low-power precision op-amp product line, engineered specifically for automotive-grade signal conditioning where wide supply range, rail-to-rail output, and AEC-Q100 reliability are mandatory.

FAQ

Is TSB622IYDT pin-compatible with other dual op-amps in SO8 packages?

No - TSB622IYDT uses a non-standard SO8 pinout: VCC− is on pin 4 and VCC+ on pin 8, unlike industry-standard dual op-amps (e.g., LM358) which place VCC+ on pin 8 and VCC− on pin 4. Layout redesign is required for substitution.

What is the maximum capacitive load the TSB622IYDT can drive while maintaining stability?

The TSB622IYDT remains stable with up to 100 pF capacitive load at unity gain, as verified by phase margin ≥45° across 2.7–36 V supply and –40 to +125 °C. For loads >100 pF, external isolation resistor (≥10 Ω) is required between output and capacitance.

Does TSB622IYDT support true single-supply operation with input referenced to ground?

Yes - its input common-mode voltage range extends to VCC− −0.1 V, allowing direct connection of the inverting or non-inverting input to ground in single-supply configurations (e.g., VCC− = 0 V, VCC+ = 12 V), enabling ground-referenced sensor interfacing without level shifters.

How does the 4 kV HBM ESD rating impact PCB layout practices?

The 4 kV HBM rating permits standard handling and assembly without special ESD precautions, but PCB layout must still include local 100 nF ceramic decoupling at VCC+ (pin 8) and VCC− (pin 4), with traces <5 mm long, to maintain EMI hardening and prevent latch-up during transient events.