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STMicroelectronics TSB622IST
- Part No.:
- TSB622IST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSB622IST.pdf
- Description:
- LOW POWER, 1.7MHZ, RAIL-TO-RAIL
- Quantity:
- Payment:
- Shipping:
Inventory:8,596
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Product details
Overview
TSB622IST 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 per channel supply current at 36 V, and operates across –40 to +125 °C. Its MiniSO8 package supports space-constrained PCB layouts in engine control units and battery management systems.
For engineers reviewing the TSB622IST datasheet, TSB622IST pinout, TSB622IST application, or TSB622IST equivalent, key selection criteria include its rail-to-rail output swing, extended 2.7–36 V supply range, low 2 µV/°C offset drift, high 135 dB supply voltage rejection ratio (SVR) at 36 V, and AEC-Q100 qualification for automotive use.
Technical Context
The TSB622IST implements a bipolar-input, unity-gain-stable architecture with internal compensation optimized for capacitive loads up to 100 pF. Its input common-mode range extends to ground (VCC−), enabling single-supply sensor interface operation, while rail-to-rail output delivers >99% of supply swing under 10 kΩ load.
It features EMI-hardened design and 4 kV HBM ESD tolerance, supporting robust operation in noisy automotive environments. The device maintains ≥45° phase margin and 18 dB gain margin across 2.7–36 V supply and –40 to +125 °C temperature range, ensuring stable closed-loop performance in feedback networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 1.7 MHz at 36 V - enables stable unity-gain buffer or 10× amplification up to 170 kHz. |
| Input Offset Voltage | ≤1 mV at 25 °C - ensures ≤10 mV error in 10 V full-scale measurement without trimming. |
| Supply Current per Channel | 375 μA max. at 36 V - allows dual op-amp operation within 750 μA total budget for ultra-low-power systems. |
| Rail-to-Rail Output | Swings within 140 mV of VCC+ and 195 mV of VCC− at 36 V - supports full dynamic range utilization in 3.3 V or 24 V single-supply designs. |
| Common-Mode Input Range | Includes ground (VCC−) to VCC−1 V - permits direct interfacing with 0 V-referenced sensors like current-shunt monitors. |
| Operating Temperature | –40 to +125 °C - qualified for under-hood automotive applications and industrial motor drives. |
| ESD Tolerance | 4 kV HBM - withstands handling and board-level electrostatic discharge without protection circuitry. |
Pinout & Package
TSB622IST is housed in a MiniSO8 package (3.0 × 4.9 mm, 0.65 mm pitch), offering enhanced thermal performance over SOT23-5 and reduced footprint versus standard SO8.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Output of first amplifier channel - drives external load or feedback network directly. |
| 2 | IN1− | Inverting input of first channel - accepts feedback or differential signal reference. |
| 3 | IN1+ | Non-inverting input of first channel - connects to sensor, reference, or signal source. |
| 4 | VCC− | Negative supply rail - must be connected to system ground or negative rail; supports true single-supply operation. |
| 5 | IN2+ | Non-inverting input of second channel - enables independent signal path for dual-sensor monitoring. |
| 6 | IN2− | Inverting input of second channel - used for differential sensing or closed-loop configuration. |
| 7 | OUT2 | Output of second amplifier channel - provides parallel signal processing without cross-talk (120 dB isolation). |
| 8 | VCC+ | Positive supply rail - accepts 2.7–36 V; high PSRR minimizes supply noise coupling into output. |
Key Features
| Feature | Design Value |
|---|---|
| Low Power + High Speed | 1.7 MHz GBW at only 375 μA/channel - achieves 4.5 kHz/MHz efficiency ratio for battery-powered diagnostics. |
| Rail-to-Rail Output | Delivers 35.86 V swing on 36 V supply - maximizes ADC input range and reduces need for level-shifting circuitry. |
| Automotive Qualification | AEC-Q100 Grade 1 compliant - validated for continuous operation at 125 °C junction temperature in engine control modules. |
| EMI Hardening | Integrated filtering suppresses RF interference above 100 MHz - eliminates external ferrite beads in infotainment sensor paths. |
| Input Ground Capability | Common-mode range includes VCC− - enables direct connection to shunt resistors referenced to ground in high-side current sensing. |
Applications
| Engine Control Unit (ECU) Sensor Signal Conditioning | Battery Management System (BMS) Cell Voltage Monitoring |
|---|---|
Use Scenario: Amplifying low-level signals from knock, oxygen, and throttle position sensors in harsh under-hood environments. IC Role / Device Role / Timing Role: Dual-channel precision amplifier providing gain, filtering, and drive capability for analog-to-digital conversion stages. Use Value: 1.6 mV max. offset drift over temperature ensures ≤0.5% measurement error across –40 to +125 °C without calibration. |
Use Scenario: Monitoring individual Li-ion cell voltages (2.5–4.2 V) in multi-cell packs with high common-mode rejection. IC Role / Device Role / Timing Role: Differential front-end amplifier rejecting pack-level noise while preserving microvolt-level cell delta-V resolution. Use Value: 135 dB SVR at 36 V supply rejects bus ripple, enabling accurate 12-bit ADC sampling without additional decoupling. |
| Industrial DC Power Supply Feedback Loop | Automotive HVAC Blower Motor Control |
Use Scenario: Closed-loop regulation of 12–24 V switching power supplies in PLC I/O modules and programmable logic controllers. IC Role / Device Role / Timing Role: Error amplifier comparing sensed output voltage against reference to adjust PWM duty cycle in real time. Use Value: Unity-gain stability and 45° phase margin ensure loop stability with minimal external compensation components. |
Use Scenario: Linear current control and speed feedback conditioning for 12 V blower motors subject to PWM-induced transients. IC Role / Device Role / Timing Role: Signal conditioner for Hall-effect rotor position feedback and current-sense amplifier output. Use Value: 2 µs overload recovery time prevents latch-up during motor stall events, maintaining closed-loop responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel rail-to-rail output op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSB622IDT | Same silicon die, SO8 package (5.0 × 6.2 mm) - higher thermal resistance (125 °C/W vs. 105 °C/W for MiniSO8). | Preferred for prototyping with through-hole-compatible footprints and manual soldering. | Select when board layout allows larger footprint and thermal dissipation is managed via copper pour. |
| TSB622IQ3T | Same electrical specs, DFN8 3×3 mm wettable flanks package - improved thermal performance (40 °C/W) and automated optical inspection support. | Targeted for high-volume automotive modules requiring reflow-solder reliability and IPC-A-610 Class 3 compliance. | Select for production-grade automotive ECUs where solder joint integrity and thermal cycling endurance are critical. |
Compared with TSB622IDT and TSB622IQ3T, the TSB622IST offers the optimal balance of miniaturization (MiniSO8), thermal performance (105 °C/W), and AEC-Q100 qualification - making it ideal for space-constrained, thermally demanding automotive modules where SO8 is too large and DFN requires advanced assembly capability.
Availability
TSB622IST is available at Aetrix Electronics and suitable for automotive engine control units, industrial power supply feedback loops, and battery management systems requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSB622IST 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, specializing in automotive, industrial, and power management ICs with vertical manufacturing and long-term product longevity commitments.
The TSB622IST belongs to ST's high-voltage, low-power operational amplifier family engineered specifically for AEC-Q100-compliant automotive subsystems and ruggedized industrial instrumentation where precision, reliability, and wide supply range are mandatory.
FAQ
Is the TSB622IST pin-compatible with other devices in the TSB62x series?
Yes - the TSB622IST shares identical MiniSO8 pinout with all TSB622 variants (e.g., TSB622IYST). Pin 1 is OUT1, Pin 4 is VCC−, Pin 8 is VCC+, and both amplifier channels follow the same IN+/IN−/OUT ordering. This enables drop-in replacement across TSB622 order codes without layout changes.
What is the maximum capacitive load the TSB622IST can drive while maintaining stability?
The TSB622IST remains stable driving up to 100 pF capacitive load with ≥45° phase margin, as verified in DS13848 Figure 19–21. For loads exceeding 100 pF, a series resistor (≥10 Ω) between output and capacitance is required to preserve stability without degrading step response overshoot beyond 15%.
Does the TSB622IST support true dual-supply operation with negative voltage on VCC−?
Yes - VCC− may be connected to a negative rail (e.g., –12 V) while VCC+ is at +12 V, enabling ±12 V operation. Absolute maximum rating allows VCC+ − VCC− ≤ 40 V, and input common-mode range extends to VCC− −0.1 V, supporting classic dual-supply configurations with ground-referenced inputs.
How does the TSB622IST's 4 kV HBM ESD rating impact system-level protection design?
The 4 kV HBM rating means the device survives direct human-body discharge events without internal damage, reducing or eliminating the need for external TVS diodes on op-amp inputs in most automotive cabin and under-hood interfaces. However, IEC 61000-4-2 system-level ESD still requires board-level protection for connectors and long traces.
TSB622IST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.6V/µs
- Gain Bandwidth Product:
- 1.7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 310µA
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MiniSO
TSB622IST FAQ
1.How can I place an order for TSB622IST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB622IST on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TSB622IST reliable?
The price and inventory of TSB622IST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB622IST is usually 5 days.
3.What payment methods are accepted for TSB622IST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB622IST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB622IST?
TSB622IST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB622IST order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TSB622IST?
For technical support, including TSB622IST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB622IST requirements.
6.How does Aetrix verify that TSB622IST is sourced from the original manufacturer or authorized distributors?
All TSB622IST products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TSB622IST meets industry standards.
7.What is the process for return or replacement of TSB622IST?
All TSB622IST units undergo pre-shipment inspection (PSI). If there is an issue with TSB622IST, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TSB622IST part is unused and in its original packaging.
Return procedure for TSB622IST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSB622IST Tags
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LM358DT
STMicroelectronics
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MCP6006UT-E/OT
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