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STMicroelectronics TSB712IYST
- Part No.:
- TSB712IYST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSB712IYST.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:1,617
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Product details
Overview
TSB712IYST from STMicroelectronics is a dual-channel, rail-to-rail input/output precision operational amplifier optimized for high-accuracy signal conditioning in industrial and automotive systems. 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). It is used in high-side/low-side current sensing circuits where wide common-mode range and low drift are critical.
For engineers reviewing the TSB712IYST datasheet, TSB712IYST pinout, TSB712IYST application, or TSB712IYST equivalent, key selection criteria include its guaranteed rail-to-rail operation up to 36 V, integrated EMI filter for noisy environments, -40 °C to +125 °C extended temperature rating, and dual-channel SO8 packaging enabling compact dual-sensing topologies.
Technical Context
The TSB712IYST employs complementary NPN/PNP input stages to achieve true rail-to-rail input operation across (VCC−) to (VCC+) + 0.1 V, with optimal performance maintained from VCC− to (VCC+) − 1.5 V. Its architecture avoids phase reversal within absolute maximum common-mode limits and integrates on-die ESD diodes with current-limiting design guidance.
It features a unity-gain-stable 6 MHz GBP amplifier core with 45° phase margin at 25 °C (10 kΩ/100 pF), supports capacitive loads up to 100 pF, and maintains 115 dB CMRR and 125 dB PSRR over temperature - critical for precision transducer interfaces and motor control feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 6 MHz - enables stable closed-loop operation up to ~500 kHz with gain ≥12 in sensor signal chains. |
| Slew Rate | 3 V/µs - supports fast transient response in motor current monitoring without distortion. |
| Input Offset Voltage | ±300 µV max at 25 °C - ensures ≤0.003% error in 10 V full-scale current sense amplifiers. |
| Supply Voltage Range | 2.7 V to 36 V single supply - accommodates 12 V/24 V industrial buses and automotive battery variations. |
| Input Voltage Noise | 12 nV/√Hz at 10 kHz - preserves SNR in strain gauge and Hall sensor front-ends with <100 mV output signals. |
| EMI Rejection | Integrated EMI filter - reduces RF rectification-induced offset shifts in switch-mode power supply environments. |
| Temperature Range | -40 °C to +125 °C - qualified for under-hood automotive and factory-floor industrial deployment. |
| ESD Tolerance | 2 kV HBM - enhances robustness during PCB handling and system-level ESD events. |
Pinout & Package
TSB712IYST is housed in a MiniSO-8 (SO8) package with exposed pad for thermal enhancement, compliant with JEDEC MS-012AC and RoHS requirements. Pin mapping is validated per DS12487 Rev 7 (page 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT1 | Output channel 1 | Low-impedance buffered output capable of sourcing/sinking 20 mA at -40 °C to +125 °C. |
| 2 IN1− | Inverting input channel 1 | Differential input node with rail-to-rail common-mode range; requires external current limiting if driven beyond rails. |
| 3 IN1+ | Non-inverting input channel 1 | High-impedance input (IIB ≤ 300 nA) for precision reference or sensor connections. |
| 4 VCC− | Negative supply voltage | Ground or negative rail connection; common return for both op-amp channels and ESD protection network. |
| 5 IN2+ | Non-inverting input channel 2 | Independent second input for dual-sensing applications (e.g., differential current + voltage monitoring). |
| 6 IN2− | Inverting input channel 2 | Matched input stage to IN1−; enables tightly coupled dual-channel configurations without crosstalk degradation. |
| 7 OUT2 | Output channel 2 | Fully independent output with same drive strength and rail-to-rail swing as OUT1. |
| 8 VCC+ | Positive supply voltage | Main power input; supplies both channels and internal bias circuitry; supports up to +40 V absolute max. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Guaranteed operation from VCC− to VCC+ for both inputs and outputs - enables full dynamic range utilization in low-voltage systems. |
| Low offset drift | 2.8 µV/°C max - limits temperature-induced error to <0.23 mV over 85 °C ambient shift, critical for uncalibrated systems. |
| High CMRR | 115 dB min at 25 °C (VCC− to VCC+ − 1.5 V range) - rejects common-mode noise in shunt-based current measurement. |
| Integrated EMI filter | On-die RC network suppresses RF rectification - eliminates need for external ferrite beads in 400–2000 MHz bands. |
| Automotive-grade option | TSB712A variant available - meets AEC-Q100 Grade 1 qualification for engine control and ADAS subsystems. |
| Channel separation | ≥125 dB crosstalk at 1 kHz - preserves signal integrity in dual-channel feedback paths (e.g., motor phase + DC bus sensing). |
Applications
| High-Side Current Sensing | Hall Effect Sensor Interface |
|---|---|
|
Use Scenario: Monitoring battery pack discharge current in EV BMS using a high-side shunt resistor. IC Role / Device Role / Timing Role: Dual-channel TSB712IYST configures one op-amp as a high-side current sense amplifier and the second as a filtered reference buffer for ADC input. Use Value: 300 µV offset ensures <0.5% full-scale error at 100 A/50 mΩ shunt; rail-to-rail output drives 12-bit SAR ADC directly without level-shifting. |
Use Scenario: Conditioning analog output from linear Hall effect sensors in BLDC motor position feedback. IC Role / Device Role / Timing Role: Single TSB712IYST channel amplifies and offsets Hall sensor output to center at VCC/2 for ADC sampling; second channel filters supply ripple. Use Value: 12 nV/√Hz noise floor preserves 12-bit resolution; EMI filter prevents PWM switching noise from corrupting position data. |
| Data Acquisition Front-End | Motor Control Feedback Loop |
|
Use Scenario: Signal conditioning for 4–20 mA industrial loop receivers with cold-junction compensation. IC Role / Device Role / Timing Role: One amplifier buffers thermocouple signal; the other conditions RTD excitation current sense for linearization. Use Value: 6 MHz GBP supports anti-alias filtering at 100 kHz; 2.7–36 V supply range simplifies multi-sensor power domain consolidation. |
Use Scenario: Real-time phase current reconstruction in three-phase inverter gate drivers. IC Role / Device Role / Timing Role: Dual TSB712IYST channels simultaneously condition two shunt voltages for FOC algorithm; matched gain minimizes torque ripple. Use Value: 3 V/µs slew rate resolves 10 kHz PWM edge transients; 125 °C rating allows placement near power modules without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSB512IDT | Same 36 V supply, but 6 MHz GBP with lower 1.8 mA ICC (vs. 2.3 mA); offset 650 µV max (vs. 300 µV). | Better suited for battery-powered DAQ where quiescent current dominates; less ideal for <0.1% current sense accuracy. | Select when supply current is constrained and offset tolerance >650 µV is acceptable. |
| LM2904DT | 2.7–36 V supply, but non-rail-to-rail I/O, 1.2 MHz GBP, 0.3 V output headroom, 2 mV offset. | Cost-optimized general-purpose use; cannot support full-scale signal swing near rails or high-bandwidth filtering. | Choose only for non-critical, low-speed industrial controls where rail-to-rail and precision are not required. |
Compared with TSB512IDT, TSB712IYST trades 0.6 mA higher ICC for 3.5× lower offset and superior EMI immunity; versus LM2904DT, it enables 5× higher closed-loop bandwidth and eliminates output saturation errors in rail-limited designs.
Availability
TSB712IYST is available at Aetrix Electronics and suitable for high-reliability industrial process control, automotive motor management, and precision test equipment requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSB712IYST 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, analog chips, and MEMS sensors for industrial, automotive, and consumer markets.
TSB712IYST belongs to ST's precision rail-to-rail op-amp product line, engineered specifically for high-accuracy signal conditioning in harsh environments - emphasizing low drift, wide supply range, and EMI-hardened operation.
FAQ
What is the maximum capacitive load the TSB712IYST can drive stably?
The TSB712IYST is characterized for stable operation with up to 100 pF capacitive load at unity gain (Figure 26, DS12487 Rev 7). Driving larger loads requires external isolation resistance or careful phase-margin verification; instability manifests as overshoot or ringing in step response (Figure 27).
Does TSB712IYST support dual-supply operation?
Yes - TSB712IYST operates from ±1.35 V to ±18 V dual supplies, matching its 2.7 V to 36 V single-supply range. Pin 4 (VCC−) serves as the negative rail, and Pin 8 (VCC+) as the positive rail; no internal level-shifting is required.
How does the integrated EMI filter function?
The EMI filter is an on-die RC network at each input pin that attenuates RF energy (typically 400–2000 MHz) before it reaches the input differential pair, preventing rectification-induced offset shifts. No external components are needed for basic EMI suppression per IEC 61000-4-3 Level 3 compliance.
Is TSB712IYST pin-compatible with other ST dual op-amps?
No - TSB712IYST uses a dedicated MiniSO-8 pinout (OUT1/IN1−/IN1+/VCC−/IN2+/IN2−/OUT2/VCC+) distinct from SO8 op-amps like TSB512 (which uses standard SO8 op-amp pinout). Direct replacement requires PCB layout revision.
TSB712IYST 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:
- 3V/µs
- Gain Bandwidth Product:
- 6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 300 nA
- Voltage - Input Offset:
- 1.2 mV
- 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-MiniSO
TSB712IYST FAQ
1.How can I place an order for TSB712IYST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB712IYST 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 TSB712IYST reliable?
The price and inventory of TSB712IYST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB712IYST is usually 5 days.
3.What payment methods are accepted for TSB712IYST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB712IYST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB712IYST?
TSB712IYST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB712IYST 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 TSB712IYST?
For technical support, including TSB712IYST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB712IYST requirements.
6.How does Aetrix verify that TSB712IYST is sourced from the original manufacturer or authorized distributors?
All TSB712IYST 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 TSB712IYST meets industry standards.
7.What is the process for return or replacement of TSB712IYST?
All TSB712IYST units undergo pre-shipment inspection (PSI). If there is an issue with TSB712IYST, 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 TSB712IYST part is unused and in its original packaging.
Return procedure for TSB712IYST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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