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STMicroelectronics TS951IDT
- Part No.:
- TS951IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS951IDT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:595
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Product details
Overview
TS951IDT from STMicroelectronics is a single-channel rail-to-rail input/output BiCMOS operational amplifier optimized for 3 V and 5 V systems, featuring 3 MHz gain-bandwidth product, 1 V/µs slew rate, and 0.9 mA supply current at 3 V. It operates from 2.7 V to 12 V and delivers rail-to-rail output swing with ±125 mV low-level output voltage (RL = 600 Ω), making it suitable for portable headphone driver and DAC buffer applications.
For engineers reviewing the TS951IDT datasheet, TS951IDT pinout, TS951IDT application, or TS951IDT equivalent, this device is selected for low-voltage signal conditioning where input common-mode range extends to VDD − 0.2 V and VCC + 0.2 V, output drive capability supports 10 mA short-circuit current, and thermal resistance in SO8 package is 125 °C/W - critical for battery-powered industrial sensors and automotive front-end circuits.
Technical Context
The TS951IDT implements a BiCMOS input stage enabling rail-to-rail common-mode input range (VDD − 0.2 V to VCC + 0.2 V) and rail-to-rail output swing within 125 mV of rails. Its 3 MHz unity-gain bandwidth and 1 V/µs slew rate support medium-speed signal amplification without phase margin degradation (60° at unit gain).
It achieves 80 dB supply voltage rejection ratio (SVR) and 80 dB common-mode rejection ratio (CMRR), with input offset voltage ≤ 8 mV over temperature and 2 µV/°C drift - enabling stable DC-coupled gain stages in precision sensor interfaces and medical front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 12 V - supports single-supply operation in 3 V battery systems and 5 V industrial logic domains. |
| Gain-Bandwidth Product | 3 MHz - enables stable unity-gain buffering up to audio frequencies (20 kHz) with >40 dB gain margin. |
| Slew Rate | 1 V/µs - ensures <1% distortion for 10 kHz sine waves at 4 Vpk-pk output swing into 600 Ω. |
| Input Offset Voltage | ≤ 8 mV (−40 °C to +125 °C) - minimizes DC error in precision transducer amplifiers without trimming. |
| Output Short-Circuit Current | 10 mA - sustains continuous drive into low-impedance loads like 600 Ω headphones or active filter feedback networks. |
| Supply Current per Amplifier | 0.9 mA at 3 V - enables multi-stage analog signal chains in power-constrained portable devices. |
| Common-Mode Input Range | VDD − 0.2 V to VCC + 0.2 V - accepts inputs down to ground in single-supply configurations, simplifying sensor interface design. |
Pinout & Package
TS951IDT is housed in an 8-pin SOIC (SO8) package with 1.27 mm pitch, 4.9 mm × 6.0 mm body, and 125 °C/W junction-to-ambient thermal resistance. Pin 1 is marked by a bevelled corner or dot.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−) | Differential input node; referenced to non-inverting input for closed-loop gain configuration. |
| 2 | Non-inverting Input (+) | High-impedance input node accepting signals from sensors or DAC outputs without loading. |
| 3 | Output | Class-AB output stage capable of sourcing/sinking ≥10 mA into resistive or capacitive loads. |
| 4 | VCC− / GND | Ground reference terminal; must be low-impedance connection to minimize noise coupling and ensure rail-to-rail input operation. |
| 5 | VCC+ | Positive supply rail; supports 2.7–12 V operation; decoupling capacitor (100 nF) required near pin for stability. |
| 6 | NC | No internal connection; left unconnected per datasheet - not used for thermal pad or biasing. |
| 7 | NC | No internal connection; electrically isolated - no routing or soldering required. |
| 8 | NC | No internal connection; mechanical placeholder only - no electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends from VDD − 0.2 V to VCC + 0.2 V - eliminates need for level-shifting circuitry in single-supply 3 V systems. |
| Rail-to-rail output voltage swing | Reaches within 125 mV of both rails into 600 Ω - maximizes dynamic range for audio drivers and ADC input buffers. |
| Low quiescent current | 0.9 mA at 3 V - enables integration into always-on sensor nodes with multi-year battery life. |
| High ESD immunity | 1 kV HBM - improves robustness during PCB handling and system-level ESD events in automotive environments. |
| Latch-up immunity | 200 mA - prevents destructive failure under transient overvoltage or reverse-bias conditions at inputs. |
Applications
| Industrial Sensor Signal Conditioning | Portable Audio Output Stage |
|---|---|
Use Scenario: Amplifying low-level millivolt outputs from RTD, thermocouple, or bridge-based pressure sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with rail-to-rail input enabling direct connection to grounded-sensor configurations. Use Value: 8 mV max input offset and 2 µV/°C drift maintain <0.1% measurement accuracy across −40 °C to +85 °C operating range. |
Use Scenario: Driving 600 Ω headphone loads from DAC outputs in handheld medical monitors and portable diagnostic tools. IC Role / Device Role / Timing Role: Low-noise, low-distortion output buffer delivering 4 Vpk-pk swing with 0.01% THD at 10 kHz. Use Value: Rail-to-rail output swing and 10 mA short-circuit current enable full-scale audio delivery without external boost circuitry. |
| DAC Output Buffering | Active Filter Stage |
Use Scenario: Isolating and scaling voltage outputs from 12-bit DACs in programmable logic controller (PLC) analog output modules. IC Role / Device Role / Timing Role: Unity-gain follower with high input impedance (>1012 Ω) and low output impedance (<1 Ω) to prevent DAC loading. Use Value: 0.9 mA supply current allows stacking multiple channels on shared 3.3 V rail without thermal derating. |
Use Scenario: Implementing second-order Sallen-Key low-pass filters in ECG front-ends and vibration monitoring systems. IC Role / Device Role / Timing Role: Active integrator and gain element with 3 MHz GBW supporting cutoff frequencies up to 100 kHz. Use Value: 60° phase margin ensures stable filter response without peaking or oscillation under capacitive load conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-channel rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS951ILT | SOT23-5 package (2.9 mm × 2.8 mm), same electrical specs, higher RthJA (250 °C/W) | Better suited for space-constrained portable designs; requires tighter thermal layout | Select when board area is limited and thermal management via copper pour or airflow is feasible |
| LMV321IDBVR | Lower GBW (1 MHz), higher input bias current (100 nA typ), same rail-to-rail I/O | Acceptable for DC/low-frequency sensor amps but insufficient for 10 kHz audio buffering | Choose only for cost-sensitive, sub-100 kHz applications where 3 MHz bandwidth is unnecessary |
Compared with TS951ILT, TS951IDT offers lower thermal resistance and standard SO8 footprint for easier prototyping; compared with LMV321IDBVR, it delivers 3× higher bandwidth and 3× lower input bias current - critical for precision AC-coupled signal paths.
Availability
TS951IDT is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable audio output stages, and DAC buffering requiring stable component supply across extended temperature ranges (−40 °C to +125 °C).
Supply support for TS951IDT 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, analog chips, and MEMS sensors for industrial, automotive, and consumer markets.
The TS95x family belongs to ST's precision analog portfolio, engineered specifically for rail-to-rail performance in low-voltage, low-power systems - targeting battery-operated instrumentation and automotive front-end signal chains.
FAQ
What is the maximum operating junction temperature for TS951IDT?
The absolute maximum junction temperature is 150 °C, with rated operating free-air temperature range from −40 °C to +125 °C. Thermal resistance junction-to-ambient is 125 °C/W in SO8 package; sustained operation above 125 °C ambient requires derating based on power dissipation and PCB copper area.
Does TS951IDT require external compensation for unity-gain stability?
No external compensation is required: TS951IDT is internally compensated for unity-gain stability with 60° phase margin into 600 Ω load and 100 pF capacitance. Stability is maintained across full supply range (2.7–12 V) and temperature (−40 °C to +125 °C) without added components.
Can TS951IDT drive capacitive loads directly?
TS951IDT can drive up to 100 pF capacitive load while maintaining 60° phase margin and stable step response. For loads >100 pF, a series isolation resistor (10–100 Ω) between output and capacitance is recommended to prevent peaking or oscillation.
Is TS951IDT qualified for automotive applications?
TS951IDT is specified for industrial temperature range (−40 °C to +125 °C) but is not AEC-Q100 qualified. For automotive use, ST offers TS951IYDT (SO8, AEC-Q100 Grade 2) and TS951IYPT (TSSOP8, AEC-Q100 Grade 2) with identical electrical specs and enhanced screening.
TS951IDT 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:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 35 nA
- Voltage - Input Offset:
- 6 mV
- Current - Supply:
- 950µA
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TS951IDT FAQ
1.How can I place an order for TS951IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS951IDT 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 TS951IDT reliable?
The price and inventory of TS951IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS951IDT is usually 5 days.
3.What payment methods are accepted for TS951IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS951IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS951IDT?
TS951IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS951IDT 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 TS951IDT?
For technical support, including TS951IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS951IDT requirements.
6.How does Aetrix verify that TS951IDT is sourced from the original manufacturer or authorized distributors?
All TS951IDT 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 TS951IDT meets industry standards.
7.What is the process for return or replacement of TS951IDT?
All TS951IDT units undergo pre-shipment inspection (PSI). If there is an issue with TS951IDT, 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 TS951IDT part is unused and in its original packaging.
Return procedure for TS951IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS951IDT Tags
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LM358DT
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