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STMicroelectronics TSB512IYST
- Part No.:
- TSB512IYST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSB512IYST.pdf
- Description:
- RAIL-TO-RAIL INPUTS AND OUTPUTS,
- Quantity:
- Payment:
- Shipping:
Inventory:1,478
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Product details
Overview
TSB512IYST from STMicroelectronics is a dual-channel rail-to-rail input/output operational amplifier optimized for high-side and low-side current sensing, motor control, and industrial process control. It operates from 2.7 V to 36 V single supply (±1.35 V to ±18 V dual), delivers 6 MHz gain bandwidth, 3 V/µs slew rate, and 12 nV/√Hz input voltage noise, with 1.5 mV max input offset voltage across –40 °C to +125 °C.
For engineers reviewing the TSB512IYST datasheet, TSB512IYST pinout, TSB512IYST application, or TSB512IYST equivalent, this device is selected for precision analog signal conditioning in automotive-grade and industrial power systems where wide supply range, EMI robustness, and rail-to-rail swing are critical.
Technical Context
The TSB512IYST implements a bipolar-input op-amp architecture enabling rail-to-rail common-mode input range (VCC– to VCC+ + 0.1 V) and output swing within 90 mV of rails at 2 mA load. Its 6 MHz GBP and 3 V/µs slew rate support stable closed-loop operation up to unity gain with capacitive loads ≤100 pF.
It integrates an on-chip EMI filter and achieves 2 kV HBM ESD tolerance. The device maintains 100 dB PSRR and 90 dB CMRR at 25 °C under 36 V supply, supporting accurate amplification in noisy industrial environments with wide common-mode voltage transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 36 V single supply - enables direct interface with 3.3 V logic, 12 V/24 V industrial buses, and 36 V battery systems without level-shifting. |
| Gain Bandwidth Product | 6 MHz - supports stable amplification of signals up to ~500 kHz in unity-gain buffer configuration with adequate phase margin. |
| Slew Rate | 3 V/µs - ensures <1 µs settling time for 3 V step inputs, suitable for fast current-sense transient response in motor phase control. |
| Input Offset Voltage | ±1.5 mV max - limits DC error to <0.5% full-scale in 300 mV shunt-based current sensing at room temperature. |
| Input Voltage Noise | 12 nV/√Hz at 10 kHz - preserves SNR in low-level sensor interfaces such as Hall effect or strain gauge front-ends. |
| EMI Filter | Integrated - suppresses RF interference above 100 MHz, reducing need for external ferrite beads in automotive ECU designs. |
| Operating Temperature | –40 °C to +125 °C - qualified per AEC-Q100 Grade 1, supporting under-hood and industrial ambient conditions. |
Pinout & Package
TSB512IYST is housed in MiniSO8 (8-pin ultra-thin small outline) package, measuring 3.0 mm × 3.0 mm × 0.85 mm, with 0.65 mm pitch and ECOPACK2 RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Output of Channel 1 - drives feedback network or next-stage ADC input with rail-to-rail swing capability. |
| 2 | IN1– | Inverting input of Channel 1 - accepts differential voltage from shunt resistor or sensor bridge with matched input impedance. |
| 3 | IN1+ | Non-inverting input of Channel 1 - used for reference biasing or positive feedback in comparator configurations. |
| 4 | VCC– | Negative supply terminal - connects to system ground or negative rail; supports true dual-supply operation down to ±1.35 V. |
| 5 | IN2+ | Non-inverting input of Channel 2 - enables independent signal path for second current channel or auxiliary sensor. |
| 6 | IN2– | Inverting input of Channel 2 - matches IN1– for synchronized dual-channel sensing in 3-phase motor controllers. |
| 7 | OUT2 | Output of Channel 2 - provides isolated analog output for redundancy or differential measurement schemes. |
| 8 | VCC+ | Positive supply terminal - accepts up to +40 V absolute max; internal protection prevents latch-up during load-dump events. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode range extends 0.1 V beyond rails; output swings within 90 mV of VCC+/VCC– at 2 mA - enables full dynamic range utilization in low-voltage systems. |
| Wide Supply Range | 2.7 V to 36 V single supply - eliminates need for separate LDOs when interfacing with mixed-voltage subsystems (e.g., 3.3 V MCU + 24 V actuator). |
| Low Input Offset Drift | 2 µV/°C - reduces thermal drift-induced error to <15 µV over 75 °C ambient shift, critical for uncalibrated industrial sensors. |
| High ESD Robustness | 2 kV HBM - meets IEC 61000-4-2 Level 2 requirements without external TVS diodes in board-level ESD protection schemes. |
| Channel Separation | 125 dB at 1 kHz - prevents crosstalk between motor phase currents in dual-shunt three-phase inverters. |
Applications
| High-Side Current Sensing | Motor Phase Control |
|---|---|
|
Use Scenario: Monitoring battery discharge current in 24 V EV auxiliary systems using a 5 mΩ shunt placed between battery positive and load. IC Role / Device Role / Timing Role: Amplifies differential voltage across shunt with 20× gain, delivering rail-to-rail output to 12-bit SAR ADC sampling at 100 kSPS. Use Value: ±1.5 mV offset ensures <±0.3% full-scale error at 10 A, while 3 V/µs slew rate captures PWM-edge transients without distortion. |
Use Scenario: Closed-loop torque control in BLDC motor drives, where two TSB512IYST channels condition current feedback from U/V phase shunts. IC Role / Device Role / Timing Role: Dual-channel simultaneous acquisition of phase currents with matched gain/offset, feeding FOC algorithm in real-time MCU. Use Value: 125 dB channel separation prevents cross-coupling errors during commutation; 6 MHz bandwidth supports >50 kHz current loop bandwidth. |
| Hall Effect Sensor Interface | Industrial Process Transmitter |
|
Use Scenario: Signal conditioning for ratiometric Hall ICs in position feedback loops of hydraulic valve actuators operating at 125 °C ambient. IC Role / Device Role / Timing Role: Buffers and amplifies low-amplitude Hall output (±100 mV) with gain of 10, rejecting common-mode noise from solenoid drivers. Use Value: 90 dB CMRR at 1 kHz rejects 12 Vpp switching noise from adjacent 20 kHz PWM valves; extended temp rating ensures reliability. |
Use Scenario: 4–20 mA transmitter front-end converting resistive RTD or strain gauge outputs in refinery pressure transmitters. IC Role / Device Role / Timing Role: Precision instrumentation amplifier stage with programmable gain, driving 16-bit ΣΔ ADC referenced to same 5 V rail. Use Value: 12 nV/√Hz noise density preserves resolution below 1 µV in 100 Ω bridge configurations; integrated EMI filter passes CISPR 25 Class 5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSB712 | Higher precision: ±0.3 mV VIO, 0.5 µV/°C drift, but narrower 36 V max supply and no integrated EMI filter. | Better for lab-grade instrumentation; less suited for noisy motor drive environments without added filtering. | Select TSB712 only when offset-critical DC accuracy outweighs EMI immunity and supply flexibility. |
| LM2904BQDR | Wider temp range (–40 °C to +150 °C), lower cost, but 1.2 MHz GBP, 0.3 V/µs slew rate, and no rail-to-rail input. | Acceptable for basic voltage monitoring but insufficient for fast current sensing or low-voltage signal fidelity. | Choose LM2904BQDR only in cost-sensitive, non-critical analog stages where bandwidth and rail-to-rail performance are not required. |
Compared with TSB712 and LM2904BQDR, TSB512IYST uniquely balances 6 MHz bandwidth, rail-to-rail I/O, integrated EMI filtering, and AEC-Q100 qualification - making it optimal for automotive and industrial current sensing where speed, noise immunity, and temperature resilience are jointly essential.
Availability
TSB512IYST is available at Aetrix Electronics and suitable for high-side current sensing, motor phase control, and industrial process transmitters requiring stable component supply across automotive and industrial production lifecycles.
Supply support for TSB512IYST 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 management ICs, analog components, and MEMS sensors for automotive, industrial, and consumer markets.
The TSB512IYST belongs to ST's precision analog amplifier product line, engineered specifically for high-reliability current sensing and sensor signal conditioning in harsh electrical environments with wide supply and temperature ranges.
FAQ
What is the maximum capacitive load the TSB512IYST can drive stably?
The TSB512IYST is characterized to drive up to 100 pF capacitive load while maintaining ≥45° phase margin at unity gain. Driving larger loads requires isolation resistance (e.g., 10–100 Ω in series with output) to prevent peaking or oscillation, as confirmed in Figure 22 of DS13885.
Does the TSB512IYST support true dual-supply operation?
Yes - the device operates from ±1.35 V to ±18 V dual supplies, with pin 4 (VCC–) and pin 8 (VCC+) accepting symmetric or asymmetric rails. Common-mode input range extends from VCC– to VCC+ + 0.1 V, and output swings within 90 mV of either rail at 2 mA load.
How does the integrated EMI filter function?
The EMI filter is a monolithic RC network embedded in the input stage, attenuating RF interference above 100 MHz without external components. It reduces susceptibility to GSM, LTE, and switching converter noise, validated per IEC 61000-4-3 testing in ST's application note AN5073.
Is the TSB512IYST pin-compatible with other devices in the TSB51x family?
No - TSB512IYST (MiniSO8) has different pinout than TSB511 (SOT23-5) and TSB514 (TSSOP14/SO14). Pin mapping is unique to each variant: MiniSO8 uses pins 1–8 for OUT1, IN1–, IN1+, VCC–, IN2+, IN2–, OUT2, VCC+, with no shared footprint.
TSB512IYST 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:
- -
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 1.8mA (x2 Channels)
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MiniSO
TSB512IYST FAQ
1.How can I place an order for TSB512IYST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB512IYST 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 TSB512IYST reliable?
The price and inventory of TSB512IYST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB512IYST is usually 5 days.
3.What payment methods are accepted for TSB512IYST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB512IYST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB512IYST?
TSB512IYST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB512IYST 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 TSB512IYST?
For technical support, including TSB512IYST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB512IYST requirements.
6.How does Aetrix verify that TSB512IYST is sourced from the original manufacturer or authorized distributors?
All TSB512IYST 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 TSB512IYST meets industry standards.
7.What is the process for return or replacement of TSB512IYST?
All TSB512IYST units undergo pre-shipment inspection (PSI). If there is an issue with TSB512IYST, 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 TSB512IYST part is unused and in its original packaging.
Return procedure for TSB512IYST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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