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STMicroelectronics TS914ID
- Part No.:
- TS914ID
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS914ID.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,830
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Product details
Overview
TS914ID from STMicroelectronics is a rail-to-rail input/output CMOS quad operational amplifier operating from 2.7 V to 16 V single or dual supply, delivering 200 μA/amplifier supply current at 3 V, 5 mV max input offset voltage (A grade), and 0.8 MHz gain bandwidth product with 10 kΩ load - used in precision sensor signal conditioning for industrial process controllers.
For engineers reviewing the TS914ID datasheet, TS914ID pinout, TS914ID application, or TS914ID equivalent, key selection criteria include rail-to-rail I/O swing under 600 Ω load, 1 pA typical input bias current, -40 °C to +125 °C operating range, and SO-14 package compatibility with legacy analog board layouts.
Technical Context
The TS914ID implements four independent high-impedance CMOS op-amps in a single SO-14 package, each featuring input common-mode range extending 0.2 V beyond both supply rails and output swing within 50 mV of rails under 10 kΩ load. Its internal current-limiting circuit fixes source/sink capability at 40 mA per amplifier at 3 V supply.
Designed for low-power precision analog front-ends, it supports stable operation with capacitive loads up to 100 pF and maintains ≥30° phase margin across 2.7–16 V supply range and 10 kΩ/600 Ω loads - verified via SPICE macromodel included in ST's official documentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - enables direct interface with 3.3 V, 5 V, and 12 V systems without level-shifting. |
| Input Offset Voltage (A grade) | 5 mV max - ensures ≤0.5% error in 1 V full-scale sensor amplification at room temperature. |
| Input Bias Current | 1 pA typical - minimizes voltage error across >1 MΩ source impedances in photodiode or pH electrode interfaces. |
| GBW Product | 0.8 MHz at 3 V / 10 kΩ - supports stable closed-loop gain ≥10 up to 70 kHz for anti-aliasing filter stages. |
| Output Swing (RL = 10 kΩ) | VCC− +50 mV / VCC+ −50 mV - delivers full dynamic range in 3.3 V ADC driver applications. |
| Channel Separation | 120 dB at 1 kHz - prevents crosstalk between simultaneous analog measurements in multi-channel data loggers. |
| ESD Robustness (HBM) | 1 kV - meets IEC 61000-4-2 Level 2 for industrial control panel mounting without external protection. |
Pinout & Package
TS914ID is housed in a 14-pin SOIC (SO-14) plastic micropackage with 1.27 mm pitch, 8.6 mm × 3.9 mm body, and 1.75 mm maximum height - compliant with ECOPACK® environmental standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Amplifier A) | High-impedance node accepting differential signal reference for first op-amp stage. |
| 2 | Non-inverting input (Amplifier A) | High-Z node for sensor signal injection or reference voltage connection. |
| 3 | Output (Amplifier A) | Capable of sourcing/sinking 40 mA while maintaining rail-to-rail swing into 600 Ω. |
| 4 | VCC+ | Positive supply rail - accepts 2.7–16 V; decoupling capacitor required within 1 cm. |
| 5 | VCC− | Negative supply rail - may be ground in single-supply configurations. |
| 6 | Inverting input (Amplifier B) | Independent input for second channel; shares no internal nodes with Amplifier A. |
| 7 | Non-inverting input (Amplifier B) | Separate high-Z input for dual-sensor differential pair processing. |
| 8 | Output (Amplifier B) | Second independent output; identical electrical specs to Pin 3. |
| 9 | Inverting input (Amplifier C) | Third channel input; validated for operation down to -40 °C ambient. |
| 10 | Non-inverting input (Amplifier C) | Supports common-mode voltages from VCC− −0.2 V to VCC+ +0.2 V. |
| 11 | Output (Amplifier C) | Drives feedback networks for active filters with <0.5% gain error over temperature. |
| 12 | Inverting input (Amplifier D) | Fourth channel input; pin-compatible with TS912 dual variant for design reuse. |
| 13 | Non-inverting input (Amplifier D) | Enables independent biasing for transimpedance amplifier configurations. |
| 14 | Output (Amplifier D) | Final output stage; tested for stability with 100 pF capacitive load per datasheet Figure 8. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 3.3 V ADC reference range without supply headroom loss. |
| 1 pA typical input bias current | Reduces leakage-induced offset drift in high-impedance thermocouple cold-junction compensation circuits. |
| Specified for 600 Ω load drive | Supports direct interface to legacy 600 Ω audio line drivers and industrial current-loop receivers. |
| Latch-up immunity | Guarantees no destructive latch-up event during power sequencing or ESD transients per JEDEC JESD78. |
| SPICE macromodel included | Validated against measured GBP, slew rate, and phase margin - accelerates loop stability analysis in LTspice. |
Applications
| Industrial Sensor Signal Conditioning | Multi-Channel Data Acquisition Front-End |
|---|---|
|
Use Scenario: Amplifying low-level outputs from RTD, thermistor, and strain gauge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Quad op-amp provides simultaneous instrumentation amp gain, filtering, level shifting, and buffer stages on one die. Use Value: 1 pA input bias current avoids >10 mV error across 10 MΩ sensor bridge arms; rail-to-rail output drives 12-bit SAR ADCs directly. |
Use Scenario: Simultaneous acquisition of four analog channels (e.g., vibration, pressure, temperature, humidity) in edge IoT gateways. IC Role / Device Role / Timing Role: Each amplifier conditions one sensor path with matched DC performance and thermal tracking. Use Value: 120 dB channel separation prevents inter-channel crosstalk at 1 kHz; 200 μA/amplifier enables battery-powered 10-year deployments. |
| Low-Power Battery-Operated Instrumentation | Legacy Industrial Control Interface |
|
Use Scenario: Portable multimeters and handheld calibration tools requiring microamp-level quiescent current. IC Role / Device Role / Timing Role: Provides precision gain and buffering while consuming only 800 μA total for all four amplifiers at 3 V. Use Value: 200 μA/amplifier at 3 V extends CR2032 coin-cell life to >2 years in sleep-active cycling mode. |
Use Scenario: Retrofitting aging 600 Ω impedance-matched analog I/O cards in DCS systems. IC Role / Device Role / Timing Role: Replaces obsolete LM324 variants while maintaining pin-for-pin compatibility and load drive capability. Use Value: Guaranteed 40 mA output sink/source into 600 Ω load eliminates need for external transistor buffers. |
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 |
|---|---|---|---|
| TS914AID | Lower 5 mV max input offset voltage vs. 12 mV for TS914ID; otherwise identical specs and pinout. | Required for <0.1% gain accuracy in precision weigh scale front-ends where offset drift dominates error budget. | Select TS914AID when offset-critical applications demand guaranteed ≤5 mV Vio over temperature. |
| LMV324DR | Higher 100 nA input bias current; 1 MHz GBW at 5 V; not specified for 600 Ω loads. | Suitable for cost-sensitive consumer electronics but unsuitable for high-impedance sensor interfaces or 600 Ω line driving. | Choose LMV324DR only for non-precision, single-supply 5 V systems where input impedance >100 kΩ. |
Compared with TS914AID, TS914ID trades guaranteed offset performance for broader availability and lower cost in industrial temperature range designs; versus LMV324DR, it delivers 100× lower input bias current and verified 600 Ω drive - critical for sensor and legacy interface fidelity.
Availability
TS914ID is available at Aetrix Electronics and suitable for industrial process controllers, multi-channel data loggers, and portable test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TS914ID 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.
The TS914 belongs to ST's precision analog op-amp product line, engineered specifically for rail-to-rail performance in low-power industrial sensing and signal conditioning applications - not general-purpose replacement.
FAQ
What is the maximum capacitive load the TS914ID can drive stably?
The TS914ID is characterized for stable operation with up to 100 pF capacitive load at unity gain, as confirmed by phase margin ≥30° in Figure 8 of the official datasheet (Doc ID 4475 Rev 8). Driving >100 pF requires external isolation resistor or gain adjustment per application note AN2718.
Does TS914ID support true single-supply operation with input voltage down to ground?
Yes - its input common-mode range extends to VCC− −0.2 V, enabling valid operation with inputs at 0 V when VCC− = 0 V. Output swings to VCC− +50 mV under 10 kΩ load, making it suitable for ground-referenced sensor interfaces without negative supply.
How does the 600 Ω load specification impact practical circuit design?
The 600 Ω load rating means the device maintains rail-to-rail output swing and specified AC performance (e.g., GBP, slew rate) when driving 600 Ω - critical for interfacing with legacy audio lines, 4–20 mA receiver inputs, and industrial analog I/O standards. Derating applies above 600 Ω.
Is the TS914ID pin-compatible with older LM324-based designs?
No - TS914ID uses SO-14 pinout optimized for quad CMOS operation (e.g., dedicated VCC+/VCC− pins), whereas LM324 uses DIP-14/SO-14 with shared V+ and V− rails. Direct replacement requires PCB layout revision and validation of input/output voltage margins.
TS914ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 1.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 10 mV
- Current - Supply:
- 230µA
- Current - Output / Channel:
- 60 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
TS914ID FAQ
1.How can I place an order for TS914ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TS914ID 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 TS914ID reliable?
The price and inventory of TS914ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS914ID is usually 5 days.
3.What payment methods are accepted for TS914ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS914ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS914ID?
TS914ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS914ID 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 TS914ID?
For technical support, including TS914ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS914ID requirements.
6.How does Aetrix verify that TS914ID is sourced from the original manufacturer or authorized distributors?
All TS914ID 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 TS914ID meets industry standards.
7.What is the process for return or replacement of TS914ID?
All TS914ID units undergo pre-shipment inspection (PSI). If there is an issue with TS914ID, 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 TS914ID part is unused and in its original packaging.
Return procedure for TS914ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS914ID Tags
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LM358DT
STMicroelectronics
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LM2904DGKR
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MCP6006UT-E/OT
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