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STMicroelectronics TSB622IQ3T
- Part No.:
- TSB622IQ3T
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
TSB622IQ3T.pdf
- Description:
- LOW POWER, 1.7MHZ, RAIL-TO-RAIL
- Quantity:
- Payment:
- Shipping:
Inventory:1,924
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Product details
Overview
TSB622IQ3T 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 max input offset voltage at 25 °C, and operates from 2.7 V to 36 V supply with rail-to-rail output swing - enabling accurate sensing across wide dynamic ranges in battery management and DC-DC feedback loops.
For engineers reviewing the TSB622IQ3T datasheet, TSB622IQ3T pinout, TSB622IQ3T application, or TSB622IQ3T equivalent, key selection criteria include its AEC-Q100 qualified DFN8 (3 × 3 mm) wettable flanks package, -40 °C to 125 °C operation, 375 µA/channel supply current at 36 V, and guaranteed unity-gain stability with capacitive loads up to 100 pF.
Technical Context
The TSB622IQ3T integrates two independent high-voltage op-amps with input common-mode range extending to ground and rail-to-rail output stage capable of sourcing/sinking ≥35 mA per channel at 36 V. Its architecture supports stable operation under varying load and supply conditions, with 105–135 dB CMRR and 100–124 dB SVR over full temperature and supply range.
It features EMI-hardened design and 4 kV HBM ESD tolerance, optimized for noisy environments like engine control units and industrial motor drives. The device maintains 0.35–0.60 V/µs slew rate and ≤2 µs overload recovery time while consuming only 310–375 µA per channel at 36 V, balancing speed, precision, and ultra-low quiescent power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 36 V - supports direct connection to 12 V/24 V automotive batteries and industrial rails without external regulators. |
| Gain Bandwidth Product | 1.7 MHz (typ. at 36 V) - enables stable closed-loop operation up to ~100 kHz with gain ≥10 in sensor amplification stages. |
| Input Offset Voltage | 1 mV max @ 25 °C - ensures ≤10 mV error in 10× gain configurations for current-sense applications at room temperature. |
| Rail-to-Rail Output | Swings within 110–140 mV of VCC and 125–150 mV of VCC− - preserves dynamic range in single-supply systems with low headroom. |
| Quiescent Current | 375 µA max per channel @ 36 V - allows integration into always-on subsystems with sub-1 mA total bias budget. |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive and industrial ambient environments without derating. |
| ESD Tolerance | 4 kV HBM - withstands handling and board-level transients in production and field service without protection circuitry. |
Pinout & Package
TSB622IQ3T is housed in a DFN8 (3 × 3 mm) wettable flanks package (package code A03Y), featuring an exposed thermal pad for enhanced heat dissipation and solder joint inspection capability. Pin 1 is marked by a dot or notch on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Output of first op-amp channel - drives feedback networks or ADC inputs with rail-to-rail swing. |
| 2 | IN1− | Inverting input of first channel - connects to current-sense resistor or feedback divider node. |
| 3 | IN1+ | Non-inverting input of first channel - accepts reference voltage or sensor signal in differential configurations. |
| 4 | VCC− | Negative supply terminal - tied to system ground in single-supply operation; supports split-rail use down to -18 V. |
| 5 | IN2+ | Non-inverting input of second channel - enables dual-path signal processing (e.g., voltage + current monitoring). |
| 6 | IN2− | Inverting input of second channel - used for comparator or transimpedance configurations with photodiodes. |
| 7 | OUT2 | Output of second op-amp channel - provides independent analog output for redundancy or multi-function circuits. |
| 8 | VCC+ | Positive supply terminal - accepts up to 36 V; internal protection limits absolute max to 40 V. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Delivers full output swing within 140 mV of VCC+ and 150 mV of VCC− at 36 V, maximizing usable signal range in single-supply designs. |
| Unity-gain stable | Operates without external compensation at gain = 1, simplifying PCB layout and reducing BOM count in buffer and follower applications. |
| EMI-hardened architecture | Rejects RF interference up to 1 GHz per IEC 62132-4, eliminating need for external filtering in infotainment and ADAS subsystems. |
| Extended temperature range | Guaranteed performance from -40 °C to +125 °C with no parameter derating - meets AEC-Q100 Grade 1 requirements. |
| Low input offset drift | 2 µV/°C max - limits total offset error to <200 µV over full temperature range, critical for precision current sensing. |
Applications
| Automotive Battery Monitoring | Industrial DC-DC Feedback |
|---|---|
Use Scenario: Real-time measurement of 12 V/48 V battery voltage and charge current in EV power distribution units. IC Role / Device Role / Timing Role: Dual op-amp configures as differential current-sense amplifier (CH1) and high-side voltage monitor (CH2) with shared supply. Use Value: 1 mV offset and 125 °C operation ensure ±0.5% accuracy over vehicle lifetime without recalibration. |
Use Scenario: Closed-loop regulation of isolated flyback or forward converter output using optocoupler-coupled feedback. IC Role / Device Role / Timing Role: First channel buffers reference voltage; second channel conditions optocoupler output for error amplifier input. Use Value: Rail-to-rail output and 1.7 MHz GBW enable fast transient response (<10 µs) to load steps in telecom power supplies. |
| Motor Control Current Sensing | Programmable Logic Controller Analog Input |
Use Scenario: Low-side shunt-based phase current measurement in 3-phase inverter gate drivers. IC Role / Device Role / Timing Role: Configured as transimpedance amplifier with matched resistors to convert shunt voltage to clean 0–3.3 V ADC input. Use Value: Input common-mode range including ground and 375 µA/channel current allow direct interface to microcontroller ADCs without level-shifting. |
Use Scenario: Signal conditioning of 4–20 mA loop inputs in industrial PLC analog input modules. IC Role / Device Role / Timing Role: One channel converts loop current to voltage; second channel filters and buffers for SAR ADC sampling. Use Value: 105 dB CMRR and 124 dB SVR suppress noise from shared 24 V bus and adjacent digital circuits in dense backplane layouts. |
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 |
|---|---|---|---|
| TSB612IST | Lower supply current (250 µA/ch @ 36 V), reduced GBP (1.1 MHz), same package options and temp range. | Better suited for ultra-low-power always-on monitoring where bandwidth <1 MHz is acceptable. | Select when optimizing for standby power over speed; requires revalidation of loop stability at lower GBP. |
| TSB712IDT | Higher precision (0.3 mV VIO), rail-to-rail inputs, higher supply current (650 µA/ch), SO8 only. | Preferred for sensor front-ends requiring input common-mode beyond ground or sub-mV offset. | Choose when input stage flexibility or tighter offset spec outweighs quiescent power penalty and package size. |
Compared with TSB622IQ3T, TSB612IST trades bandwidth for lower power in space-constrained automotive modules, while TSB712IDT adds input-stage precision and rail-to-rail input capability at the cost of higher current and larger SO8 footprint - making TSB622IQ3T optimal for balanced performance in DFN8-limited layouts.
Availability
TSB622IQ3T is available at Aetrix Electronics and suitable for automotive battery management, industrial DC-DC converters, and motor control current sensing requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSB622IQ3T 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, delivering intelligent power, analog, MEMS, and microcontroller solutions for automotive, industrial, and consumer markets.
The TSB62x series belongs to ST's high-voltage precision op-amp product line, engineered specifically for robust signal conditioning in harsh-environment applications where wide supply range, rail-to-rail output, and AEC-Q100 compliance are mandatory.
FAQ
Is TSB622IQ3T pin-compatible with other TSB62x variants?
No - TSB622IQ3T uses the DFN8 (3 × 3 mm) wettable flanks package with an 8-pin layout distinct from SO8, MiniSO8, SOT23-5, SO14, and TSSOP14 versions. Pin mapping matches Table 2 in DS13848 Rev 3, but physical footprint and thermal pad configuration are unique to the A03Y package code.
What is the maximum capacitive load the TSB622IQ3T can drive while maintaining stability?
The TSB622IQ3T is unity-gain stable and characterized for CL ≤ 100 pF with ≥45° phase margin across all supply voltages (2.7 V to 36 V). Driving >100 pF requires external compensation (e.g., series resistor at output) per Figure 18–21 in DS13848 Rev 3.
Does TSB622IQ3T support split-supply operation?
Yes - its supply range is specified as ±18 V (VCC+ to VCC− = 36 V max), and input common-mode extends to VCC−. With VCC− = -15 V and VCC+ = +15 V, it operates as a true dual-supply op-amp with ground-referenced inputs and rail-to-rail output swing between ±15 V.
How does the DFN8 wettable flanks package benefit automated optical inspection (AOI)?
The wettable flanks design exposes vertical copper sidewalls on all eight leads, enabling reliable solder fillet imaging during AOI. This allows 100% automated verification of solder joint integrity - critical for automotive-grade manufacturing where void-free interconnects are mandated per IPC-A-610 Class 3.
TSB622IQ3T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- 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:
- 1.5 mV
- Current - Supply:
- 310µA (x2 Channels)
- 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-DFN (3x3)
TSB622IQ3T FAQ
1.How can I place an order for TSB622IQ3T through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB622IQ3T 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 TSB622IQ3T reliable?
The price and inventory of TSB622IQ3T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB622IQ3T is usually 5 days.
3.What payment methods are accepted for TSB622IQ3T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB622IQ3T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB622IQ3T?
TSB622IQ3T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB622IQ3T 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 TSB622IQ3T?
For technical support, including TSB622IQ3T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB622IQ3T requirements.
6.How does Aetrix verify that TSB622IQ3T is sourced from the original manufacturer or authorized distributors?
All TSB622IQ3T 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 TSB622IQ3T meets industry standards.
7.What is the process for return or replacement of TSB622IQ3T?
All TSB622IQ3T units undergo pre-shipment inspection (PSI). If there is an issue with TSB622IQ3T, 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 TSB622IQ3T part is unused and in its original packaging.
Return procedure for TSB622IQ3T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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