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STMicroelectronics TSB712AIYDT
- Part No.:
- TSB712AIYDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSB712AIYDT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
TSB712AIYDT from STMicroelectronics is a dual-channel, rail-to-rail input/output precision operational amplifier optimized for high-side and low-side current sensing in automotive and industrial power 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). Its integrated EMI filter and 2 kV HBM ESD rating support robust operation in noisy motor control and instrumentation environments.
For engineers reviewing the TSB712AIYDT datasheet, TSB712AIYDT pinout, TSB712AIYDT application, or TSB712AIYDT equivalent, key selection criteria include its guaranteed rail-to-rail I/O performance across -40 °C to +125 °C, low 12 nV/√Hz input voltage noise at 10 kHz, and precise common-mode rejection (115 dB typ. at 25 °C) in high-gain transducer signal chains.
Technical Context
The TSB712AIYDT uses a complementary NPN/PNP rail-to-rail input stage enabling full common-mode range from VCC− to (VCC+)+0.1 V, with optimized performance between VCC− and (VCC+)−1.5 V. Its dual-channel architecture supports independent signal conditioning paths without crosstalk degradation-crosstalk remains ≥125 dB at 1 kHz and ≥100 dB at 10 kHz under AV = +11.
It features internal ESD protection diodes on all inputs, requiring external series resistors if input voltages exceed rails by >200 mV to limit current to ≤10 mA. Phase margin is 45° at unity gain (10 kΩ/100 pF load), supporting stable operation with capacitive loads up to 100 pF without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 6 MHz - enables stable closed-loop operation up to 100 kHz with gain ≥60, suitable for fast current-loop feedback in motor drives. |
| Slew Rate | 3 V/µs - supports 10 Vpp output swing at 500 kHz without distortion, critical for pulse-width modulated sensor interfaces. |
| Input Offset Voltage | ±300 µV max at 25 °C - ensures ≤0.003% gain error in 100× current-sense amplifiers using 10 mΩ shunts. |
| Input Voltage Noise | 12 nV/√Hz at 10 kHz - preserves SNR in 20-bit data acquisition systems measuring microvolt-level strain gauge outputs. |
| Common-Mode Rejection | 115 dB typ. at 25 °C (VCC− to VCC+−1.5 V) - rejects >100,000:1 of common-mode interference in high-side shunt monitoring. |
| Supply Voltage Range | 2.7 V to 36 V single supply - eliminates need for level-shifting in 12 V/24 V automotive battery monitoring and industrial PLC analog I/O modules. |
| EMI Rejection | Integrated RC-filtered inputs - suppresses RF rectification-induced offset shifts from 100 MHz–1 GHz cellular/WiFi emissions per AEC-Q100 Class 0 requirements. |
Pinout & Package
TSB712AIYDT is housed in a MiniSO-8 package (3.0 mm × 3.0 mm, 0.65 mm pitch), qualified for automotive applications per AEC-Q100 Grade 1. The exposed pad improves thermal dissipation (RthJA = 190 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT1 | Output channel 1 | Capable of sourcing/sinking 20 mA at −40 °C to +125 °C; rail-to-rail swing enables direct interface to SAR ADC reference buffers. |
| 2 IN1− | Inverting input channel 1 | Protected by ESD diodes to VCC+/VCC−; requires ≤10 mA series limiting resistor if driven beyond supply rails. |
| 3 IN1+ | Non-inverting input channel 1 | Part of complementary PNP/NPN input pair; offset minimized when VICM stays within VCC− to (VCC+)−1.5 V window. |
| 4 VCC− | Negative supply voltage | Reference node for dual-supply operation; must be connected even in single-supply use to ensure proper biasing of input stage. |
| 5 IN2+ | Non-inverting input channel 2 | Electrically isolated from IN1±; enables independent differential sensing of two shunt resistors in 3-phase inverter legs. |
| 6 IN2− | Inverting input channel 2 | Matches IN1− characteristics; channel separation ≥125 dB at 1 kHz ensures <1 µV coupling between current-sense channels. |
| 7 OUT2 | Output channel 2 | Identical performance to OUT1; allows simultaneous monitoring of high-side and low-side currents without multiplexing delay. |
| 8 VCC+ | Positive supply voltage | Accepts up to +40 V transient; internal overvoltage clamp protects internal circuitry during load-dump events in 24 V systems. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal utilization across entire supply range-critical for maximizing dynamic range in 3.3 V microcontroller-based data loggers. |
| Low 300 µV max input offset (25 °C) | Reduces calibration burden in factory-trimmed current sensors; maintains <0.5% total error over temperature without software correction. |
| 6 MHz bandwidth with 3 V/µs slew rate | Supports accurate reconstruction of fast-switching PWM edges in real-time motor phase current observers (FOC algorithms). |
| Integrated EMI filter | Eliminates need for external RC filters on PCB-reduces BOM count and layout area in space-constrained automotive body control modules. |
| 2 kV HBM ESD tolerance | Meets IEC 61000-4-2 Level 3 requirements for handheld test equipment and field-serviceable industrial controllers. |
| −40 °C to +125 °C operating range | Qualified per AEC-Q100 Grade 1-enables placement directly on power-stage PCBs near MOSFETs without remote sensing. |
Applications
| High-Side Current Sensing | Motor Phase Current Monitoring |
|---|---|
|
Use Scenario: Real-time measurement of 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: Dual op-amp configured as two independent difference amplifiers, each rejecting common-mode voltage up to 24 V while amplifying 100 mV shunt drop. Use Value: Rail-to-rail output delivers full 0–3.3 V range to MCU ADC without level-shifting; 12 nV/√Hz noise ensures <10 mA resolution at 100 ksps sampling. |
Use Scenario: Closed-loop field-oriented control (FOC) of a 3-phase BLDC motor in HVAC compressors, requiring synchronized sampling of all three phase currents. IC Role / Device Role / Timing Role: Two TSB712AIYDT channels condition two phase currents simultaneously; third phase derived mathematically to reduce component count. Use Value: 6 MHz bandwidth captures >200 kHz current harmonics from PWM switching; 45° phase margin prevents instability during rapid torque transients. |
| Hall Effect Sensor Signal Conditioning | Industrial Strain Gauge Bridge Interface |
|
Use Scenario: Amplification and filtering of millivolt-level analog outputs from linear Hall effect position sensors in steering angle detection modules. IC Role / Device Role / Timing Role: Single channel used in non-inverting configuration with 100× gain; second channel buffers reference voltage for ratiometric accuracy. Use Value: 300 µV max offset contributes <0.03° angular error at full scale; integrated EMI filter suppresses ignition noise coupling into safety-critical signals. |
Use Scenario: Excitation and amplification of 350 Ω Wheatstone bridge outputs in load cells for industrial weighing platforms operating in electrically noisy factory floors. IC Role / Device Role / Timing Role: One channel supplies regulated excitation voltage; the other performs low-noise, high-CMRR differential amplification of bridge output. Use Value: 115 dB CMRR rejects 60 Hz mains pickup; 12 nV/√Hz noise enables 20-bit effective resolution without external chopper stabilization. |
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 |
|---|---|---|---|
| TSB712IDT | Same silicon, but standard grade (−40 °C to +105 °C) and ±650 µV max VIO at 25 °C vs. ±300 µV for TSB712AIYDT. | Lacks AEC-Q100 qualification; unsuitable for under-hood automotive use but acceptable in commercial-grade motor drives. | Select when cost sensitivity outweighs extended temperature or automotive reliability requirements. |
| TSB512IYDT | Lower 2.5 MHz GBP, 1.5 V/µs slew rate, and higher 20 nV/√Hz noise at 10 kHz-but consumes only 0.9 mA per channel vs. 1.8 mA. | Better suited for battery-powered portable instrumentation where bandwidth and noise are secondary to quiescent current. | Choose for ultra-low-power data loggers where 100 kHz signal fidelity is sufficient and supply headroom is constrained. |
Compared with TSB712IDT, the TSB712AIYDT provides tighter offset and extended temperature capability essential for automotive current sensing; versus TSB512IYDT, it trades higher power for 2.4× bandwidth and 40% lower noise-making it optimal for high-fidelity motor control loops.
Availability
TSB712AIYDT is available at Aetrix Electronics and suitable for automotive battery management, industrial servo drives, and precision test equipment requiring stable component supply with full AEC-Q100 traceability and lot-level documentation.
Supply support for TSB712AIYDT 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 automotive, industrial, and consumer markets.
The TSB712AIYDT belongs to ST's high-precision, high-voltage operational amplifier product line-engineered specifically for demanding current sensing, transducer interfacing, and signal conditioning tasks in harsh electrical environments.
FAQ
What is the maximum capacitive load the TSB712AIYDT can drive without instability?
The TSB712AIYDT maintains ≥45° phase margin driving up to 100 pF capacitive load at unity gain with 10 kΩ series resistance, as verified in Figure 26 of DS12487. For loads >100 pF, external isolation resistance (≥100 Ω) is required to prevent peaking or oscillation-especially critical in PCB traces routing to ADC input capacitors.
Does the TSB712AIYDT exhibit phase reversal when input voltage exceeds supply rails?
No. The TSB712AIYDT guarantees no phase reversal for any input common-mode voltage within the absolute maximum rating window of (VCC−) − 200 mV to (VCC+) + 200 mV, as confirmed in Section 5.2 of DS12487. This eliminates latch-up risk in comparator-mode overdrive scenarios common in fault-detection circuits.
How does the rail-to-rail input stage affect common-mode rejection at high common-mode voltages?
CMRR degrades above (VCC+) − 1.5 V due to transition between PNP and NPN input pairs-measured at 95 dB min at 25 °C when VICM = VCC+, versus 115 dB min in the optimized region. Designers should constrain common-mode input to ≤(VCC+) − 1.5 V for highest accuracy in high-side sensing applications.
Is the TSB712AIYDT pin-compatible with other devices in the TSB71x family?
Yes-TSB712AIYDT shares identical MiniSO-8 pinout with TSB712IDT and TSB712IYDT. However, TSB711 variants (SOT23-5) and TSB512 (SO8) use different footprints and pin assignments; board-level substitution requires layout revision and validation of thermal and noise performance.
TSB712AIYDT 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
TSB712AIYDT FAQ
1.How can I place an order for TSB712AIYDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB712AIYDT 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 TSB712AIYDT reliable?
The price and inventory of TSB712AIYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB712AIYDT is usually 5 days.
3.What payment methods are accepted for TSB712AIYDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB712AIYDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB712AIYDT?
TSB712AIYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB712AIYDT 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 TSB712AIYDT?
For technical support, including TSB712AIYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB712AIYDT requirements.
6.How does Aetrix verify that TSB712AIYDT is sourced from the original manufacturer or authorized distributors?
All TSB712AIYDT 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 TSB712AIYDT meets industry standards.
7.What is the process for return or replacement of TSB712AIYDT?
All TSB712AIYDT units undergo pre-shipment inspection (PSI). If there is an issue with TSB712AIYDT, 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 TSB712AIYDT part is unused and in its original packaging.
Return procedure for TSB712AIYDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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