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STMicroelectronics TSB712IDT
- Part No.:
- TSB712IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSB712IDT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,942
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Product details
Overview
TSB712IDT from STMicroelectronics is a dual-channel, rail-to-rail input/output precision operational amplifier optimized for high-side and low-side current sensing in industrial motor control and data acquisition 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 tolerance support robust operation in noisy industrial environments.
For engineers reviewing the TSB712IDT datasheet, TSB712IDT pinout, TSB712IDT application, or TSB712IDT equivalent, this page provides verified pin functions, real-world use cases in current sensing and Hall effect interfaces, key AC/DC performance trade-offs at 5 V and 36 V supplies, and validated alternatives with documented functional differences.
Technical Context
The TSB712IDT employs complementary NPN/PNP input differential pairs enabling true rail-to-rail input operation from VCC− to (VCC+)+0.1 V, with optimal DC performance maintained across VCC− to (VCC+)−1.5 V. Its architecture avoids phase reversal within the full absolute maximum common-mode range (VCC− −0.2 V to VCC+ +0.2 V).
It features an integrated EMI filter that suppresses RF rectification-induced offset shifts, and its output stage delivers ±50 mA drive capability with rail-symmetric VOH/VOL (≤200 mV drop at 15 mA) across −40 °C to +125 °C. The device maintains 110 dB CMRR and 125 dB PSRR at 25 °C under 36 V supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 6 MHz - supports stable closed-loop operation up to ~500 kHz with moderate noise gain in transimpedance or active filter designs. |
| Slew Rate | 3 V/µs - enables clean 10 kHz, 30 Vpp sine wave reproduction without distortion in motor control feedback paths. |
| Input Offset Voltage | ±300 µV max at 25 °C - ensures ≤0.3% error in 100 mV full-scale current sense applications without trimming. |
| Supply Voltage Range | 2.7 V to 36 V single supply - eliminates need for level-shifting in 24 V industrial PLC I/O modules or 12 V automotive subsystems. |
| Input Voltage Noise | 12 nV/√Hz at 10 kHz - critical for low-level strain gauge or thermopile signal conditioning where noise dominates resolution. |
| EMI Rejection | Integrated filter - reduces RF-induced offset shift by >20 dB vs. unfiltered op-amps at 900 MHz, improving reliability in switch-mode power supply proximity. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive and factory-floor industrial environments without derating. |
Pinout & Package
TSB712IDT is packaged in MiniSO-8 (SO8), a surface-mount 8-pin package with 1.27 mm pitch, 4.9 mm × 6.0 mm body, and thermal resistance RthJA = 125 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Output of Channel 1 - drives feedback networks or ADC inputs; rail-to-rail swing supports direct interface to SAR ADC references. |
| 2 | IN1− | Inverting input of Channel 1 - used for current sense resistor feedback in high-side configurations; accepts common-mode voltages up to VCC+ +0.1 V. |
| 3 | IN1+ | Non-inverting input of Channel 1 - connects to reference or sensor node; complementary PNP/NPN input stage prevents phase reversal at rail extremes. |
| 4 | VCC− | Negative supply terminal - must be connected to system ground or negative rail; internal ESD diodes clamp inputs to this node. |
| 5 | IN2+ | Non-inverting input of Channel 2 - enables dual-sensor monitoring (e.g., motor phase A/B currents) with matched DC specs between channels. |
| 6 | IN2− | Inverting input of Channel 2 - supports independent gain-setting resistors per channel; crosstalk <−100 dB at 10 kHz ensures isolation. |
| 7 | OUT2 | Output of Channel 2 - independently buffered; capable of sourcing/sinking 50 mA for driving optocoupler LEDs or gate drivers. |
| 8 | VCC+ | Positive supply terminal - accepts up to +40 V transient; internal protection limits supply current during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in single-supply 3.3 V microcontroller interfaces and 24 V industrial sensors without external level shifters. |
| Low input offset drift | 2.8 µV/°C max - limits temperature-induced error to <250 µV over −40 °C to +125 °C, critical for uncalibrated field-deployed instrumentation. |
| Integrated EMI filter | Reduces RF rectification sensitivity at 433/868 MHz ISM bands, eliminating need for external RC filters in EMC-critical motor drive PCB layouts. |
| 2 kV HBM ESD tolerance | Meets IEC 61000-4-2 Level 3 requirements for handling in manufacturing and field service without additional protection circuitry. |
| Dual-channel matching | Channel-to-channel offset mismatch <±100 µV and gain error <0.01% - supports precise differential measurements in bridge-based transducer interfaces. |
Applications
| High-Side Current Sensing | Hall Effect Sensor Interface |
|---|---|
|
Use Scenario: Monitoring battery pack discharge current in 24 V EV auxiliary systems using a 1 mΩ shunt placed between battery positive and load. IC Role / Device Role / Timing Role: Amplifies differential voltage across shunt with gain of 100 V/V; rail-to-rail output feeds 12-bit ADC with 3.3 V reference. Use Value: 300 µV max offset contributes only 0.3% full-scale error at 100 A; 6 MHz bandwidth rejects PWM switching noise from adjacent DC-DC converters. |
Use Scenario: Conditioning analog output of linear Hall effect sensor (e.g., Allegro A1302) in industrial position feedback loop. IC Role / Device Role / Timing Role: Buffers and amplifies Hall voltage (0.5–4.5 V range) while rejecting EMI from nearby variable-frequency drives. Use Value: Integrated EMI filter suppresses 900 MHz cellular interference; rail-to-rail input accepts sensor output down to 0 V without clipping. |
| Data Acquisition Front-End | Motor Phase Current Monitoring |
|
Use Scenario: Signal conditioning stage in portable multichannel data logger measuring thermocouple, RTD, and strain gauge outputs. IC Role / Device Role / Timing Role: Provides programmable-gain amplification (G = 1–1000) and anti-alias filtering before 16-bit sigma-delta ADC. Use Value: 12 nV/√Hz input noise enables 1 µV resolution on 10 mV full-scale strain signals; 125 °C rating supports embedded deployment in hot enclosures. |
Use Scenario: Real-time measurement of three-phase motor currents in servo drive using dual TSB712IDT per phase (six channels total). IC Role / Device Role / Timing Role: Dual amplifier per phase implements isolated current sense with matched gain/offset for vector control algorithms. Use Value: Channel matching <±100 µV ensures <0.1° phase error in field-oriented control; 3 V/µs slew rate captures 20 kHz PWM edge transients. |
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 |
|---|---|---|---|
| TSB712AIDT | Guaranteed ±300 µV max VIO at 25 °C and ±580 µV over −40 °C to +125 °C (vs. ±800 µV for TSB712IDT); same pinout and package. | Required for high-accuracy closed-loop current control where offset drift must stay below 0.5 mV across temperature. | Select TSB712AIDT when production calibration is impractical and initial offset spec must be tighter than standard grade. |
| TSB512IDT | Same 36 V supply, rail-to-rail I/O, but lower 6 MHz GBP (typical), higher 1.8 mA ICC (vs. 1.4 mA), and no integrated EMI filter. | Suitable for cost-sensitive industrial I/O modules where EMI immunity is managed at board level via layout/shielding. | Choose TSB512IDT when supply current budget is relaxed and external EMI mitigation is already implemented in system design. |
Compared with TSB712IDT, TSB712AIDT improves offset stability for uncalibrated high-precision sensing, while TSB512IDT trades EMI robustness and quiescent current for lower unit cost-neither offers drop-in replacement without verifying layout-level noise suppression or thermal drift margins.
Availability
TSB712IDT is available at Aetrix Electronics and suitable for industrial motor control, high-reliability data acquisition, and automotive-grade current sensing requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TSB712IDT 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, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.
TSB712IDT belongs to ST's high-voltage precision op-amp portfolio, engineered specifically for accurate current sensing, transducer interfacing, and signal conditioning in harsh electromagnetic and thermal environments.
FAQ
What is the maximum capacitive load the TSB712IDT can drive stably?
The TSB712IDT is characterized for stable operation with up to 100 pF capacitive load at unity gain, per Figure 26 in DS12487. Driving larger loads (e.g., >200 pF) requires series output resistance (≥10 Ω) or gain ≥10 to maintain ≥45° phase margin, as confirmed by phase margin vs. capacitive load curves at both 5 V and 36 V supplies.
Does the TSB712IDT support true rail-to-rail input at the positive rail?
Yes-the input common-mode range extends to (VCC+) + 0.1 V, verified per Table 4. However, optimal DC performance (CMRR >110 dB, minimal offset shift) is guaranteed only up to (VCC+) − 1.5 V due to PNP/NPN input pair transition; operation near VCC+ may degrade accuracy by up to 300 µV, as shown in Figures 11 and 12.
Can TSB712IDT be used in comparator mode?
No-it is not designed or characterized for open-loop comparator operation. Exceeding ±2 V differential input voltage risks forward-biasing internal ESD diodes and causing latch-up or accelerated aging. For comparator applications, ST recommends dedicated devices like TS882 or TLV370x with built-in hysteresis and rail-to-rail outputs.
How does the integrated EMI filter affect small-signal bandwidth?
The EMI filter adds no measurable degradation to small-signal bandwidth: gain bandwidth remains 6 MHz and phase margin stays ≥45° at unity gain, as confirmed in Figures 22–23 and Section 5.6. The filter targets RF rectification (≥100 MHz) without impacting baseband signal integrity up to 10 MHz.
TSB712IDT 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:
- 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-SOIC
TSB712IDT FAQ
1.How can I place an order for TSB712IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB712IDT 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 TSB712IDT reliable?
The price and inventory of TSB712IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB712IDT is usually 5 days.
3.What payment methods are accepted for TSB712IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB712IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB712IDT?
TSB712IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB712IDT 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 TSB712IDT?
For technical support, including TSB712IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB712IDT requirements.
6.How does Aetrix verify that TSB712IDT is sourced from the original manufacturer or authorized distributors?
All TSB712IDT 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 TSB712IDT meets industry standards.
7.What is the process for return or replacement of TSB712IDT?
All TSB712IDT units undergo pre-shipment inspection (PSI). If there is an issue with TSB712IDT, 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 TSB712IDT part is unused and in its original packaging.
Return procedure for TSB712IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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