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STMicroelectronics TSB514IYDT
- Part No.:
- TSB514IYDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSB514IYDT.pdf
- Description:
- RAIL-TO-RAIL INPUTS AND OUTPUTS,
- Quantity:
- Payment:
- Shipping:
Inventory:958
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Product details
Overview
TSB514IYDT from STMicroelectronics is a quad rail-to-rail input/output operational amplifier optimized for high-precision current sensing and industrial control, featuring 6 MHz gain bandwidth product, 3 V/µs slew rate, and ±1.5 mV maximum input offset voltage across –40 °C to +125 °C. It operates from 2.7 V to 36 V single supply or ±1.35 V to ±18 V dual supplies and delivers 25 mA output drive per channel at 36 V.
For engineers reviewing the TSB514IYDT datasheet, TSB514IYDT pinout, TSB514IYDT application, or TSB514IYDT equivalent, this page provides verified pin functions, real-world use cases in motor control and strain gauge interfaces, key thermal and noise performance data, and validated automotive-grade alternatives with documented supply voltage and offset drift differences.
Technical Context
The TSB514IYDT implements a fully differential, unity-gain stable architecture with integrated EMI filtering and 2 kV HBM ESD protection. Its rail-to-rail input stage supports common-mode voltages from VCC– –0.2 V to VCC+ +0.2 V, while the rail-to-rail output delivers <120 mV saturation voltage at 15 mA sink/source under 36 V supply.
It maintains 100 dB minimum PSRR and 85 dB minimum CMRR over full temperature range, with phase margin ≥45° into 100 pF capacitive load. Channel separation exceeds 100 dB at 10 kHz, enabling reliable multi-channel signal conditioning without crosstalk-induced error in 4-channel sensor front-ends.
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 anti-aliasing filters and fast-settling current sense amplifiers. |
| Slew Rate | 3 V/µs - Supports 10 Vpp signals at ≥300 kHz without distortion, critical for PWM-based motor control feedback loops. |
| Input Offset Voltage | ±1.5 mV max (25 °C), ±2 mV max (–40 to +125 °C) - Limits baseline error to ≤0.015% of 10 V full-scale, essential for precision shunt-based current measurement. |
| Supply Voltage Range | 2.7 V to 36 V single supply - Powers directly from industrial 24 V rails or automotive 12 V systems without LDO pre-regulation. |
| Input Voltage Noise | 12 nV/√Hz at 10 kHz - Contributes <1.2 µVrms integrated noise in 100 kHz bandwidth, preserving SNR in low-level Hall sensor outputs. |
| Output Drive Current | ±25 mA per channel (25 °C, 36 V) - Drives 1 kΩ loads to rail with <200 mV drop, eliminating need for external buffers in actuator driver stages. |
| EMI Filtering | Integrated - Rejects >40 dB of 100 MHz–1 GHz RF interference, validated per IEC 61000-4-3, reducing layout sensitivity in noisy factory environments. |
Pinout & Package
TSB514IYDT is housed in a 14-lead TSSOP package (JEDEC MO-153, 5.0 mm × 6.4 mm × 1.05 mm body height) with exposed thermal pad for enhanced power dissipation in continuous 4-channel operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Channel 1 output - Rail-to-rail swing enables direct interface to SAR ADC reference inputs or comparator thresholds. |
| 2 | IN1– | Inverting input for Channel 1 - Paired with IN1+ for differential current sense configuration with matched trace routing. |
| 3 | IN1+ | Non-inverting input for Channel 1 - Accepts high-impedance sensor signals (e.g., bridge transducers) without loading error. |
| 4 | VCC+ | Positive supply terminal - Must be decoupled with 100 nF ceramic capacitor within 5 mm to suppress supply bounce during fast output transitions. |
| 5 | IN2+ | Non-inverting input for Channel 2 - Electrically isolated from IN1± to prevent inter-channel coupling in multi-sensor systems. |
| 6 | IN2– | Inverting input for Channel 2 - Supports independent gain-setting resistors per channel for mixed-sensitivity sensor arrays. |
| 7 | OUT2 | Channel 2 output - Phase-matched with OUT1 for synchronous sampling in dual-axis motion control feedback. |
| 8 | OUT3 | Channel 3 output - Delivers identical AC/DC performance as OUT1/OUT2, enabling three-phase motor current monitoring. |
| 9 | IN3– | Inverting input for Channel 3 - Shares VCC– return path with IN4– but maintains >100 dB isolation at 10 kHz per datasheet Figure 15. |
| 10 | IN3+ | Non-inverting input for Channel 3 - Compatible with 0–5 V or 0–10 V industrial analog inputs without level-shifting circuitry. |
| 11 | VCC– | Negative supply terminal - Serves as common reference for all four channels; requires low-inductance connection to system ground plane. |
| 12 | IN4+ | Non-inverting input for Channel 4 - Configurable as unity-gain buffer for reference voltage distribution across PCB. |
| 13 | IN4– | Inverting input for Channel 4 - May be tied to VCC– for single-ended operation when used as line driver. |
| 14 | OUT4 | Channel 4 output - Rated for 15 mA continuous sink at 36 V, supporting direct LED indicator or optocoupler drive. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization with 2.7 V supply - captures 0–2.7 V sensor outputs without level shifters or supply boosting. |
| Low offset voltage drift | 2 µV/°C max - Limits temperature-induced gain error to <0.2 mV over 85 °C ambient swing, critical for uncalibrated field deployments. |
| Integrated EMI filter | Validated to IEC 61000-4-3 Level 3 (10 V/m) - Eliminates need for external ferrite beads or RC filters in motor drive PCB layouts. |
| Automotive-grade qualification | AEC-Q100 Grade 1 (–40 to +125 °C) - Certified for engine bay and transmission control modules without derating. |
| Wide supply range | Operates down to 2.7 V - Allows direct battery monitoring in 3.3 V microcontroller domains without voltage translation. |
Applications
| High-Side Current Sensing | Hall Effect Sensor Interface |
|---|---|
|
Use Scenario: Monitoring phase current in 24 V BLDC motor drives using shunt resistors placed between MOSFET source and ground. IC Role / Device Role / Timing Role: Quad op-amp configured as four independent difference amplifiers, each measuring voltage across dedicated 5 mΩ shunts with 100× gain. Use Value: 3 V/µs slew rate ensures accurate capture of 20 kHz PWM edges; ±1.5 mV offset contributes <0.075% full-scale error at 2 A range. |
Use Scenario: Conditioning analog outputs from linear Hall sensors in industrial position encoders operating at 100 kHz update rates. IC Role / Device Role / Timing Role: Channel 1–2 used as active low-pass filters (10 kHz cutoff), Channels 3–4 as DC-coupled buffers driving 10 kΩ ADC inputs. Use Value: 12 nV/√Hz input noise preserves 12-bit ENOB; rail-to-rail output matches 3.3 V ADC reference without attenuation. |
| Strain Gauge Bridge Amplification | Motor Control Feedback Loop |
|
Use Scenario: Amplifying differential output from 350 Ω Wheatstone bridges in load cells for factory automation weighing systems. IC Role / Device Role / Timing Role: All four channels deployed in instrumentation amplifier topology (INA128-style) using external precision resistors for 1000× gain. Use Value: 85 dB CMRR at 125 °C rejects common-mode noise from nearby VFDs; 6 MHz GBW supports 500 Hz step response settling in <1 µs. |
Use Scenario: Closed-loop velocity control in servo drives where back-EMF sensing requires simultaneous sampling of three motor phases plus bus voltage. IC Role / Device Role / Timing Role: Channels 1–3 condition phase voltage signals for FOC algorithms; Channel 4 monitors DC bus for overvoltage protection. Use Value: Matched slew rate and offset across channels ensures <10 ns timing skew between sampled phases, maintaining vector control accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSB714IYDT | Lower offset (±0.5 mV max), higher GBP (10 MHz), but narrower supply range (2.7–24 V) | Better for sub-0.1% precision metrology; unsuitable for 36 V industrial bus monitoring | Select when offset drift <1 µV/°C and bandwidth >8 MHz are required, and supply stays ≤24 V. |
| LM324QDRQ1 | Wider temp range (–40 to +150 °C), lower cost, but no rail-to-rail input, 1.2 MHz GBP, 0.5 V/µs slew rate | Acceptable for non-critical 12 V automotive body control; inadequate for fast PWM current sensing | Choose only for cost-sensitive, low-bandwidth applications where input common-mode range >1 V from rails is acceptable. |
Compared with TSB514IYDT, TSB714IYDT trades supply voltage headroom for superior DC precision and speed, while LM324QDRQ1 sacrifices bandwidth and rail-to-rail capability for extended temperature tolerance and BOM cost reduction - selection depends on whether 36 V operation, 3 V/µs slew, or sub-mV offset dominates the design requirement.
Availability
TSB514IYDT is available at Aetrix Electronics and suitable for industrial process control, motor control, and high-side current sensing requiring stable component supply across automotive and factory automation programs.
Supply support for TSB514IYDT 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 silicon solutions for smart mobility, power management, and industrial control markets.
The TSB51x series belongs to ST's precision analog portfolio, engineered specifically for high-reliability current sensing and sensor signal conditioning in harsh environments - emphasizing wide supply range, EMI resilience, and AEC-Q100 compliance.
FAQ
What is the maximum capacitive load the TSB514IYDT can drive stably?
The TSB514IYDT is characterized for stable operation with up to 100 pF capacitive load at unity gain, as confirmed in Table 6 and Figure 22 of DS13885. Driving >100 pF requires external isolation resistor (≥100 Ω) in series with the output to maintain ≥45° phase margin and prevent peaking or oscillation.
Does the TSB514IYDT support dual-supply operation?
Yes - the TSB514IYDT operates from ±1.35 V to ±18 V dual supplies, as specified in the Description section and Table 5 (Operating Conditions). Pin 4 (VCC+) connects to positive rail, Pin 11 (VCC–) to negative rail, and input common-mode range extends to within 0.2 V of either rail.
How does the integrated EMI filter function without external components?
The EMI filter is monolithically integrated within the die's input stage, consisting of on-chip RC networks that attenuate RF energy above 100 MHz before it reaches the high-gain transconductance stage. This is validated per IEC 61000-4-3 testing and eliminates the need for external LC filters in typical 24 V industrial installations.
Is the TSB514IYDT pin-compatible with other ST quad op-amps like the TS914?
No - the TSB514IYDT uses a unique 14-pin TSSOP pinout optimized for four independent amplifiers with separate supply pins (VCC+, VCC–), differing from TS914's SO14 layout which shares V+ and V– across all channels. Direct replacement requires PCB redesign due to incompatible supply routing and output pin placement.
TSB514IYDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 3V/µs
- Gain Bandwidth Product:
- 6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- -
- Voltage - Input Offset:
- -
- Current - Supply:
- 1.8mA (x4 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:
- 14-SO
TSB514IYDT FAQ
1.How can I place an order for TSB514IYDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB514IYDT 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 TSB514IYDT reliable?
The price and inventory of TSB514IYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB514IYDT is usually 5 days.
3.What payment methods are accepted for TSB514IYDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB514IYDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB514IYDT?
TSB514IYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB514IYDT 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 TSB514IYDT?
For technical support, including TSB514IYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB514IYDT requirements.
6.How does Aetrix verify that TSB514IYDT is sourced from the original manufacturer or authorized distributors?
All TSB514IYDT 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 TSB514IYDT meets industry standards.
7.What is the process for return or replacement of TSB514IYDT?
All TSB514IYDT units undergo pre-shipment inspection (PSI). If there is an issue with TSB514IYDT, 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 TSB514IYDT part is unused and in its original packaging.
Return procedure for TSB514IYDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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