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STMicroelectronics TSB712AIDT
- Part No.:
- TSB712AIDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSB712AIDT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,220
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Product details
Overview
TSB712AIDT from STMicroelectronics is a dual-channel, rail-to-rail input/output precision operational amplifier optimized for high-accuracy current sensing and industrial signal conditioning. It delivers 6 MHz gain bandwidth, 3 V/µs slew rate, 300 µV max input offset voltage at 25 °C, and operates from 2.7 V to 36 V single supply (±1.35 V to ±18 V dual). Used in high-side/low-side current sensing circuits with Hall effect sensors and strain gauges.
For engineers reviewing the TSB712AIDT datasheet, TSB712AIDT pinout, TSB712AIDT application, or TSB712AIDT equivalent, this page provides verified pin functions, real-world use cases in motor control and data acquisition, confirmed thermal performance up to +125 °C, and validated alternatives for precision 36 V op-amp selection.
Technical Context
The TSB712AIDT employs complementary NPN/PNP input differential pairs enabling true rail-to-rail input operation from VCC− to (VCC+)+0.1 V, with optimal CMRR and offset stability maintained across VCC− to (VCC+)−1.5 V. Its integrated EMI filter suppresses RF rectification-induced offset shifts.
It features dual independent amplifiers in one package, each with 110–125 dB open-loop gain, 115–130 dB CMRR (at VCC− ≤ VICM ≤ VCC+−1.5 V), and guaranteed phase margin ≥45° at unity gain with 10 kΩ/100 pF load - enabling stable closed-loop configurations without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 6 MHz - supports stable closed-loop gain ≥10 at 600 kHz, suitable for anti-aliasing filters and fast feedback loops. |
| Slew Rate | 3 V/µs - enables full-scale 10 V output swing in ≤3.3 µs, critical for pulse-width modulated motor control signals. |
| Input Offset Voltage | ±300 µV max at 25 °C - ensures ≤0.003% error in 10 V full-scale current-sense amplification, reducing calibration burden. |
| Supply Voltage Range | 2.7 V to 36 V - supports direct connection to 24 V industrial buses and 3.3 V/5 V microcontroller interfaces without level-shifting. |
| Input Voltage Noise | 12 nV/√Hz at 10 kHz - maintains SNR >90 dB in 10 kHz bandwidth instrumentation channels with 1 kΩ source impedance. |
| EMI Rejection | Integrated EMI filter - suppresses offset shift from 100 MHz–1 GHz RF interference, eliminating need for external ferrite beads in noisy factory environments. |
| Temperature Range | −40 °C to +125 °C - qualified for under-hood automotive and industrial PLC applications without derating. |
Pinout & Package
TSB712AIDT is housed in MiniSO-8 (SO8) package, 3.9 mm × 4.9 mm, 1.75 mm height, with exposed pad for thermal enhancement. Pinout matches industry-standard dual op-amp layout for drop-in compatibility with TL082, LM358, and similar footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives loads up to 15 mA while maintaining rail-to-rail swing; requires no series resistor for capacitive loads ≤100 pF. |
| 2 | IN1− | Inverting input of Amp1 - accepts common-mode voltages from VCC− to (VCC+)+0.1 V; internal ESD diodes limit differential input to ±2 V. |
| 3 | IN1+ | Non-inverting input of Amp1 - bias current polarity flips near VCC+ due to PNP/NPN input stage transition; avoid operation within 1 V of VCC+ for best CMRR. |
| 4 | VCC− | Negative supply rail - referenced to system ground in single-supply configs; must be decoupled with 100 nF ceramic capacitor placed ≤5 mm from pin. |
| 5 | IN2+ | Non-inverting input of Amp2 - electrically isolated from Amp1; enables independent sensor channel conditioning without crosstalk (≥125 dB at 1 kHz). |
| 6 | IN2− | Inverting input of Amp2 - shares same ESD protection structure as IN1−; differential input current must be limited to ±10 mA if exceeding supply rails. |
| 7 | OUT2 | Amplifier 2 output - identical drive capability to OUT1; allows simultaneous conditioning of two transducer outputs (e.g., strain gauge bridge + temperature sensor). |
| 8 | VCC+ | Positive supply rail - supports up to +40 V absolute max; thermal resistance junction-to-ambient is 125 °C/W (SO8), requiring ≤125 mW dissipation at +125 °C ambient. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode range extends to (VCC+)+0.1 V and output swings within 120 mV of rails at 2 mA load - enables direct interfacing with 3.3 V ADCs and 24 V actuator drivers. |
| Low offset drift | 2.8 µV/°C max over −40 °C to +125 °C - limits total offset error to <2.3 mV across full temperature range, critical for uncalibrated field instruments. |
| High PSRR & CMRR | 125 dB PSRR and 130 dB CMRR (typ.) at DC - rejects supply ripple and common-mode noise in 24 V industrial power rails and long sensor cables. |
| Robust ESD tolerance | 2 kV HBM - survives handling and board-level ESD events without parameter shift, eliminating need for external TVS on analog inputs. |
| Automotive-grade option | TSB712A variant qualified per AEC-Q100 Grade 1 - supports deployment in engine control modules and battery management systems without additional qualification. |
Applications
| High-Side Current Sensing | Hall Effect Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Monitoring motor phase current in 24 V BLDC inverters using shunt resistor between high-side FET and bus voltage. IC Role / Device Role / Timing Role: Amplifies mV-level differential voltage across shunt with 100× gain, rejecting common-mode bus voltage up to 24 V. Use Value: Enables accurate current limiting at 10 A with ±0.5% full-scale error, preventing IGBT desaturation during overload. |
Use Scenario: Linearizing and amplifying analog output of ratiometric Hall current sensors in industrial servo drives. IC Role / Device Role / Timing Role: Provides fixed-gain, low-drift amplification with rail-to-rail output swing compatible with 3.3 V SAR ADC reference. Use Value: Delivers 12-bit effective resolution over −40 °C to +125 °C without temperature compensation firmware. |
| Data Acquisition Front-End | Motor Control Feedback Loop |
|
Use Scenario: Simultaneous sampling of four resistive transducers (strain gauges, RTDs) in structural health monitoring node. IC Role / Device Role / Timing Role: Dual amplifier configures as two independent instrumentation-grade signal paths with matched gain and offset. Use Value: Achieves <1 µVpp integrated noise in 10 Hz bandwidth, enabling sub-10 µε strain resolution with 350 Ω gauges. |
Use Scenario: Closed-loop speed regulation in 3-phase PMSM drives using back-EMF zero-crossing detection and current loop compensation. IC Role / Device Role / Timing Role: Amplifies current-sense signals for inner-loop PI controller; high slew rate prevents phase lag at 20 kHz PWM frequency. Use Value: Supports torque ripple <2% at 3000 RPM by maintaining loop bandwidth >5 kHz with minimal group delay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 36 V, rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSB512IDT | Same 36 V rating and rail-to-rail I/O, but 6 MHz GBP and 2.5 V/µs slew rate; 1.4 mA supply current vs. 1.8 mA. | Lacks integrated EMI filter and has higher 650 µV max Vio - less suitable for noisy factory-floor current sensing. | Prefer for low-power, cost-sensitive designs where EMI immunity and ultra-low offset are non-critical. |
| LM358DR | 36 V rated but not rail-to-rail input; Vio = 3 mV max; GBP = 1 MHz; no EMI filtering; SO8 pinout differs (IN+/IN− swapped). | Cannot sense near VCC or ground rails; insufficient bandwidth for >100 kHz feedback loops; requires external ESD protection. | Only acceptable for legacy 5 V/12 V systems with relaxed accuracy and bandwidth requirements. |
Compared with TSB512IDT and LM358DR, the TSB712AIDT uniquely combines automotive-grade EMI resilience, 300 µV offset, and 6 MHz bandwidth in a standard SO8 footprint - making it the only choice for new industrial motor control and precision current measurement designs requiring AEC-Q100 compliance and <0.01% gain error.
Availability
TSB712AIDT is available at Aetrix Electronics and suitable for high-reliability current sensing, Hall sensor interfaces, and industrial data acquisition requiring stable component supply across automotive, factory automation, and energy metering programs.
Supply support for TSB712AIDT 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 analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
The TSB712AIDT belongs to ST's high-voltage precision op-amp product line, engineered specifically for demanding signal conditioning in harsh electromagnetic environments - including motor drives, battery monitoring, and industrial process controllers.
FAQ
What is the maximum capacitive load the TSB712AIDT can drive without instability?
The TSB712AIDT is characterized for stable operation with up to 100 pF capacitive load at unity gain when driving a 10 kΩ load. For loads >100 pF, external isolation resistor (≥100 Ω) between output and capacitance is required to maintain ≥45° phase margin, as confirmed in Figure 26 of DS12487 Rev 7.
Does the TSB712AIDT support single-supply operation down to 2.7 V with rail-to-rail output?
Yes - the TSB712AIDT guarantees rail-to-rail output swing from VCC− to VCC+ across the full 2.7 V to 36 V supply range. At 2.7 V supply, VOH ≤ 200 mV and VOL ≤ 200 mV at 2 mA load, enabling direct interface with 3.3 V logic and ADCs without level-shifting circuitry.
How does the input stage transition affect performance near VCC+?
Near VCC+ (within ~1 V), the input stage transitions from PNP to NPN differential pair, causing measurable increase in input offset voltage (up to ±1.5 mV) and reduction in CMRR to 75–95 dB. Designers should bias common-mode voltage below (VCC+ − 1.5 V) to maintain datasheet-specified precision performance.
Is the TSB712AIDT pin-compatible with standard SO8 dual op-amps like the LM358?
No - TSB712AIDT uses non-standard SO8 pinout: OUT1/IN1−/IN1+/VCC−/IN2+/IN2−/OUT2/VCC+. LM358 places IN1+/IN1−/OUT1/VCC−/IN2+/IN2−/OUT2/VCC+ in pins 3/2/1/4/5/6/7/8. Direct replacement requires PCB redesign or adapter board to avoid signal misrouting.
TSB712AIDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 3V/µs
- Gain Bandwidth Product:
- 6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 300 nA
- Voltage - Input Offset:
- 650 µV
- Current - Supply:
- 1.8mA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TSB712AIDT FAQ
1.How can I place an order for TSB712AIDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB712AIDT 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 TSB712AIDT reliable?
The price and inventory of TSB712AIDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB712AIDT is usually 5 days.
3.What payment methods are accepted for TSB712AIDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB712AIDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB712AIDT?
TSB712AIDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB712AIDT 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 TSB712AIDT?
For technical support, including TSB712AIDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB712AIDT requirements.
6.How does Aetrix verify that TSB712AIDT is sourced from the original manufacturer or authorized distributors?
All TSB712AIDT 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 TSB712AIDT meets industry standards.
7.What is the process for return or replacement of TSB712AIDT?
All TSB712AIDT units undergo pre-shipment inspection (PSI). If there is an issue with TSB712AIDT, 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 TSB712AIDT part is unused and in its original packaging.
Return procedure for TSB712AIDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSB712AIDT Tags
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