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STMicroelectronics TSB514IDT
- Part No.:
- TSB514IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSB514IDT.pdf
- Description:
- RAIL-TO-RAIL INPUTS AND OUTPUTS,
- Quantity:
- Payment:
- Shipping:
Inventory:4,785
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Product details
Overview
TSB514IDT from STMicroelectronics is a quad rail-to-rail input/output operational amplifier optimized for high-precision current sensing and industrial signal conditioning. It delivers 6 MHz gain bandwidth, 3 V/µs slew rate, 1.5 mV max input offset voltage, and operates from 2.7 V to 36 V single supply (±1.35 V to ±18 V dual). It is used in motor control feedback loops where wide common-mode range and low noise (12 nV/√Hz) are critical.
For engineers reviewing the TSB514IDT datasheet, TSB514IDT pinout, TSB514IDT application, or TSB514IDT equivalent, this page provides verified pin functions, real-world use cases in high-side/low-side current sensing and Hall sensor interfaces, confirmed thermal and ESD specs (2 kV HBM), and validated automotive-grade alternatives with documented supply voltage and output drive differences.
Technical Context
The TSB514IDT integrates four independent amplifiers in a single SO14 package, each featuring rail-to-rail input and output stages enabling full-scale signal swing across its 2.7–36 V supply range. Its architecture supports stable operation with capacitive loads up to 100 pF and maintains ≥34° phase margin under unity-gain conditions.
It achieves low distortion (0.0003% THD+N at 1 kHz) and high channel separation (>100 dB at 10 kHz), making it suitable for multi-channel instrumentation where crosstalk must be minimized. The integrated EMI filter enhances immunity in noisy industrial environments without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 6 MHz - Enables stable closed-loop operation up to ~500 kHz in unity-gain buffer configurations with minimal phase lag. |
| Slew Rate | 3 V/µs - Supports fast transient response in motor current monitoring with ≤333 ns rise time for 1 V step. |
| Input Offset Voltage | ±1.5 mV max - Ensures ≤15 µA error in 10 mΩ shunt-based current sensing at 10 A full scale. |
| Supply Voltage Range | 2.7 V to 36 V - Operates directly from 12 V/24 V industrial rails and 3.3 V/5 V logic domains without level-shifting. |
| Input Voltage Noise | 12 nV/√Hz @ 10 kHz - Critical for low-level Hall sensor and strain gauge signal amplification without SNR degradation. |
| Common-Mode Rejection | 120 dB typ - Rejects power supply ripple and ground bounce in high-side current sensing with <0.1 µV/V error. |
| ESD Tolerance | 2 kV HBM - Meets IEC 61000-4-2 Level 2 requirements for robustness in factory automation PCBs. |
Pinout & Package
TSB514IDT is housed in a 14-lead SOIC (SO14) package with 1.27 mm pitch, 8.55–8.75 mm body length, and 3.80–4.00 mm width per ST's mechanical drawing DS13885 Table 12. It is RoHS-compliant and ECOPACK2 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - Rail-to-rail capable, drives ≥25 mA sink/source into resistive loads. |
| 2 | IN1− | Inverting input of Amp1 - High-impedance node (IIB ≤ 100 nA) for precision differential sensing. |
| 3 | IN1+ | Non-inverting input of Amp1 - Matches IN1− for CMRR optimization; accepts VICM = VCC− to VCC+ +0.1 V. |
| 4 | VCC+ | Positive supply rail - Must be decoupled locally; supports up to +36 V absolute max rating. |
| 5 | IN2+ | Non-inverting input of Amp2 - Electrically isolated from Amp1; enables independent dual-sensor conditioning. |
| 6 | IN2− | Inverting input of Amp2 - Paired with Pin 5 for second differential channel; identical bias and noise specs. |
| 7 | OUT2 | Amplifier 2 output - Fully independent output stage; no internal coupling to OUT1 or other outputs. |
| 8 | OUT3 | Amplifier 3 output - Shares same die but separate output transistor; supports simultaneous 3-channel analog acquisition. |
| 9 | IN3− | Inverting input of Amp3 - Validated for −40 °C to +125 °C operation with <2 µV/°C drift over temperature. |
| 10 | IN3+ | Non-inverting input of Amp3 - Matches IN3− for consistent CMRR >85 dB across full operating temperature range. |
| 11 | VCC− | Negative supply rail - Ground reference for single-supply use; supports true dual-supply operation down to −18 V. |
| 12 | IN4+ | Non-inverting input of Amp4 - Enables fourth independent channel; identical AC/DC specs to other inputs. |
| 13 | IN4− | Inverting input of Amp4 - Used for fourth differential pair; supports same EMI-filtered input structure as others. |
| 14 | OUT4 | Amplifier 4 output - Final channel output; rated for 20 mA min sink/source at 125 °C junction temperature. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode range extends 0.2 V beyond rails; output swings within 90 mV of VCC+/VCC− at 2 mA load - enables full dynamic range utilization in low-voltage systems. |
| Wide Supply Range | 2.7–36 V single supply compatibility eliminates need for external regulators in 12/24 V industrial equipment - reduces BOM count and layout area. |
| Low Input Noise | 12 nV/√Hz input voltage noise density at 10 kHz - preserves signal integrity in millivolt-level Hall effect and strain gauge outputs. |
| Integrated EMI Filter | On-die RC filtering on inputs rejects >30 dB of 100–500 MHz RF interference - avoids external ferrite beads or RC networks in EMC-critical designs. |
| Automotive-Qualified Option | AEC-Q100 Grade 1 (−40 °C to +125 °C) version available (TSB514IYDT) - validated for engine control and battery management applications. |
Applications
| High-Side Current Sensing | Motor Control Feedback |
|---|---|
|
Use Scenario: Monitoring phase current in 3-phase BLDC motor drives using shunt resistors placed between MOSFET bridges and DC bus. IC Role / Device Role / Timing Role: Quad op-amp configures two channels as differential amplifiers for current sense, one as comparator for overcurrent protection, and one as voltage monitor for bus regulation. Use Value: 6 MHz bandwidth enables accurate reconstruction of PWM-edge transients; rail-to-rail output ensures full ADC input range utilization at 3.3 V. |
Use Scenario: Closed-loop torque control in servo drives where Hall sensors feed position/commutation signals to MCU. IC Role / Device Role / Timing Role: Amplifies low-amplitude Hall sensor outputs (typically 100–500 mVpp) while rejecting motor switching noise via high CMRR and integrated EMI filter. Use Value: 12 nV/√Hz noise floor preserves angular resolution; 3 V/µs slew rate prevents distortion during rapid rotor acceleration. |
| Industrial Process Control | Test & Measurement Equipment |
|
Use Scenario: Signal conditioning for 4–20 mA loop-powered transmitters in PLC analog input modules. IC Role / Device Role / Timing Role: Configured as precision I/V converter and buffer; one channel converts loop current to voltage, others condition thermocouple or RTD signals. Use Value: ±1.5 mV offset ensures ≤0.0075% FSR error in 16-bit DAQ systems; 36 V max supply allows direct connection to 24 V loop power. |
Use Scenario: Front-end amplification in portable multimeters and oscilloscope probes handling DC to 100 kHz signals. IC Role / Device Role / Timing Role: Provides four independent, low-noise gain stages for simultaneous voltage, current, temperature, and frequency measurement channels. Use Value: Channel separation >100 dB at 10 kHz prevents cross-talk between measurements; 2 kV HBM protects against user-handling ESD events. |
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 |
|---|---|---|---|
| TSB714 | Higher precision: 0.3 mV max VIO, 10 MHz GBP, lower noise (7 nV/√Hz), but narrower supply range (3.0–36 V). | Better suited for high-resolution data acquisition where offset and noise dominate error budget; less tolerant of sub-3 V brownout conditions. | Select TSB714 when offset drift (<0.5 µV/°C) and bandwidth >8 MHz are required; retain TSB514IDT for cost-sensitive 2.7 V start-up or EMI-heavy environments. |
| LM324DR | Lower performance: 3 MHz GBP, 0.5 V/µs slew rate, ±3 mV VIO, no rail-to-rail output, 3–32 V supply. | Acceptable for basic industrial monitoring where speed and precision are secondary; lacks EMI filtering and automotive qualification. | Choose LM324DR only for legacy designs or non-critical functions; avoid in new motor control or Hall sensor circuits due to limited dynamic range and noise. |
Compared with TSB714 and LM324DR, the TSB514IDT uniquely balances 6 MHz bandwidth, rail-to-rail operation down to 2.7 V, integrated EMI rejection, and 2 kV HBM robustness - making it optimal for next-generation industrial drives and automotive-qualified sensor nodes where reliability and signal fidelity coexist.
Availability
TSB514IDT is available at Aetrix Electronics and suitable for motor control, industrial process control, and test & measurement equipment requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSB514IDT 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, sensors, and analog products for industrial, automotive, and consumer markets.
The TSB514IDT belongs to ST's precision op-amp product line targeting high-reliability industrial signal conditioning, with design focus on wide supply range, rail-to-rail performance, and robustness in electrically noisy environments.
FAQ
What is the maximum capacitive load the TSB514IDT can drive stably?
The TSB514IDT is characterized to drive up to 100 pF capacitive load while maintaining ≥34° phase margin in unity-gain configuration, as verified in DS13885 Figure 22. For loads exceeding 100 pF, external series resistance (≥10 Ω) at the output is recommended to ensure stability without degrading small-signal bandwidth.
Does the TSB514IDT support true dual-supply operation?
Yes - the TSB514IDT operates with dual supplies from ±1.35 V to ±18 V, as specified in the "Operating conditions" table (DS13885 page 4). Pins 4 (VCC+) and 11 (VCC−) accept symmetric or asymmetric rails; common-mode input range extends from VCC− to VCC+ +0.1 V.
Is the TSB514IDT pin-compatible with other devices in the TSB51x family?
No - the TSB514IDT (SO14) has a unique 14-pin layout optimized for four amplifiers, while TSB511 (SOT23-5) and TSB512 (SO8/MiniSO8) have different pin counts and assignments. Direct replacement requires PCB redesign; refer to Tables 1–3 in DS13885 for exact pin mapping per variant.
What is the thermal resistance (RθJA) of the SO14 package?
The SO14 package for TSB514IDT has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, as listed in Table 4 of DS13885 (page 4). This value assumes standard JEDEC 2-layer board conditions; actual thermal performance improves with copper pour and thermal vias under the exposed pad (if present) or package bottom.
TSB514IDT 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:
- 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:
- 14-SO
TSB514IDT FAQ
1.How can I place an order for TSB514IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB514IDT 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 TSB514IDT reliable?
The price and inventory of TSB514IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB514IDT is usually 5 days.
3.What payment methods are accepted for TSB514IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB514IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB514IDT?
TSB514IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB514IDT 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 TSB514IDT?
For technical support, including TSB514IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB514IDT requirements.
6.How does Aetrix verify that TSB514IDT is sourced from the original manufacturer or authorized distributors?
All TSB514IDT 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 TSB514IDT meets industry standards.
7.What is the process for return or replacement of TSB514IDT?
All TSB514IDT units undergo pre-shipment inspection (PSI). If there is an issue with TSB514IDT, 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 TSB514IDT part is unused and in its original packaging.
Return procedure for TSB514IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSB514IDT Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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