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STMicroelectronics TS914AIYDT
- Part No.:
- TS914AIYDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS914AIYDT.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,143
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Product details
Overview
TS914AIYDT from STMicroelectronics is an automotive-grade rail-to-rail input/output CMOS quad operational amplifier operating from 2.7 V to 16 V single supply, delivering 5 mV max input offset voltage (A grade), 1 pA typical input bias current, and 200 μA/amplifier supply current at 3 V. It drives 600 Ω loads with ±40 mA output current and supports operation from −40 °C to +125 °C in SO-14 package - used in precision sensor signal conditioning for automotive cabin control modules.
For engineers reviewing the TS914AIYDT datasheet, TS914AIYDT pinout, TS914AIYDT application, or TS914AIYDT equivalent, key selection criteria include rail-to-rail I/O swing under low-voltage automotive supply rails, ultra-low input bias current for high-impedance transducer interfaces, guaranteed A-grade offset performance across temperature, and AEC-Q100 qualified reliability for under-hood and infotainment subsystems.
Technical Context
The TS914AIYDT integrates four independent CMOS op-amps with common-mode input range extending 0.2 V beyond both supply rails (VCC− −0.2 V to VCC+ +0.2 V) and output swing within 50 mV of rails into 10 kΩ, or 350 mV into 600 Ω. Its internal current-limiting circuit fixes source/sink capability at ±40 mA per amplifier at 3 V, enabling direct drive of moderate-power analog stages without external buffers.
Designed for single-supply operation in harsh environments, it features latch-up immunity, 1 kV HBM ESD rating, and thermal resistance of 103 °C/W (junction-to-ambient). The device maintains ≥70 dB CMRR and ≥80 dB PSRR across its full 2.7–16 V supply range, ensuring stable gain accuracy in noisy automotive power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V single supply - enables direct interface with 3.3 V, 5 V, and 12 V automotive sub-systems without level-shifting. |
| Input Offset Voltage (max) | 5 mV (A grade, −40 °C to +125 °C) - ensures ≤0.5% gain error in 1 V full-scale sensor amplification circuits. |
| Input Bias Current (typ) | 1 pA at 25 °C - preserves signal integrity in >10 GΩ source impedance applications like piezoelectric or pH sensor front-ends. |
| Output Drive Capability | ±40 mA into 600 Ω load at 3 V - supports direct driving of ADC reference buffers or analog multiplexer inputs without external drivers. |
| Gain Bandwidth Product | 1.4 MHz at 10 V supply - sufficient for closed-loop bandwidths up to ~100 kHz in unity-gain stable configurations with 10 kΩ loads. |
| Common-Mode Rejection Ratio | 90 dB at 10 V supply (Vicm = 3–7 V) - rejects battery ripple and alternator noise in differential sensor measurements. |
| Operating Temperature | −40 °C to +125 °C - qualified per AEC-Q100 Grade 1, suitable for engine bay, HVAC, and body control module locations. |
Pinout & Package
TS914AIYDT is housed in a 14-pin SOIC (SO-14) plastic micropackage with standard 1.27 mm pitch, ECOPACK® compliant, and rated for automotive thermal and mechanical stress.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 12 | Inverting Input (AMP1–AMP4) | High-impedance CMOS node accepting differential signals; compatible with high-Z sensors and photodiode transimpedance feedback. |
| 2, 6, 10, 13 | Non-inverting Input (AMP1–AMP4) | Accepts rail-to-rail common-mode voltages (VCC− −0.2 V to VCC+ +0.2 V); enables true single-supply level-shifting and biasing. |
| 3, 7, 11, 14 | Output (AMP1–AMP4) | Rail-to-rail capable: swings to VCC− +50 mV / VCC+ −50 mV (10 kΩ), supporting low-headroom signal chain design. |
| 4 | Positive Supply (VCC+) | Accepts 2.7–16 V; decoupling required near pin to suppress supply noise coupling into sensitive analog paths. |
| 11 (shared) | Negative Supply (VCC−) | Ground reference for single-supply use; must be low-impedance return path for all four amplifiers' output currents. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 3.3 V systems - e.g., 0–3.3 V sensor output digitization without level-shifting. |
| Ultra-low input bias current (1 pA typ) | Minimizes voltage error in high-source-impedance circuits (e.g., >100 MΩ thermistor networks or capacitive touch sense electrodes). |
| A-grade input offset voltage (5 mV max) | Guarantees consistent DC accuracy across automotive temperature extremes, reducing calibration burden in production test. |
| 600 Ω load drive capability | Eliminates need for external buffer stages when driving SAR ADC reference inputs or analog switch control lines. |
| AEC-Q100 Grade 1 qualification | Validated for continuous operation at +125 °C ambient, supporting placement in proximity to power electronics and lighting drivers. |
Applications
| Automotive Cabin Temperature Sensor Interface | Engine Coolant Level Monitoring Circuit |
|---|---|
|
Use Scenario: Amplifies low-level output from NTC thermistors embedded in HVAC ducts, compensating for self-heating and lead resistance. IC Role / Device Role / Timing Role: Quad configuration allows simultaneous signal conditioning for multiple zones (driver, passenger, rear) using one IC. Use Value: Rail-to-rail I/O and 1 pA bias current prevent measurement drift due to PCB leakage or long sensor traces, maintaining ±0.5 °C accuracy over life. |
Use Scenario: Conditioned signal from float-based coolant level transducer with variable resistance output (200 Ω–2 kΩ) in radiator expansion tank. IC Role / Device Role / Timing Role: One amplifier acts as precision current source for ratiometric excitation; others buffer and filter the sensed voltage. Use Value: 600 Ω drive capability directly powers the transducer without external transistor, reducing BOM count and layout area. |
| Automotive Seat Occupancy Detection | Body Control Module Window Lift Signal Conditioning |
|
Use Scenario: Interfaces with capacitive seat pad sensors detecting occupant presence/weight via charge-transfer measurement. IC Role / Device Role / Timing Role: Configured as transimpedance amplifier with femtoampere-level sensitivity to detect minute capacitance changes. Use Value: 1 pA input bias current ensures <1 fA leakage-induced error, critical for meeting FMVSS 208 airbag deployment logic thresholds. |
Use Scenario: Amplifies and filters analog position feedback from potentiometric window lift motor sensors (0–5 V linear taper). IC Role / Device Role / Timing Role: Single-supply operation (5 V) with rail-to-rail output ensures full 0–5 V reporting range to MCU ADC without clipping. Use Value: 5 mV max offset guarantees ≤0.1% full-scale error at 5 V, enabling precise 1% window position resolution for anti-pinch algorithms. |
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 |
|---|---|---|---|
| LMV324QDRQ1 | Higher supply current (180 μA/amp vs. 200 μA), wider GBW (1 MHz), but only 100 pA input bias current (vs. 1 pA). | Lacks ultra-low bias current needed for >1 GΩ sensor nodes; better suited for general-purpose signal buffering. | Select when lower cost and higher speed outweigh ultra-low input current requirements. |
| TLV2784IPW | Lower offset (1.5 mV max), lower noise (17 nV/√Hz), but narrower supply range (2.7–6 V) and no AEC-Q100 qualification. | Not rated for 12 V automotive systems or extended temperature operation; limited to infotainment or low-voltage body modules. | Select only for non-critical interior subsystems where 125 °C operation and 12 V compatibility are not required. |
Compared with LMV324QDRQ1 and TLV2784IPW, TS914AIYDT uniquely balances ultra-low input bias current, AEC-Q100 Grade 1 qualification, and 16 V supply tolerance - making it the only option among the three for high-impedance, high-temperature, multi-rail automotive sensing.
Availability
TS914AIYDT is available at Aetrix Electronics and suitable for automotive cabin control, engine management, body electronics, and ADAS subsystems requiring stable component supply across extended temperature and voltage ranges.
Supply support for TS914AIYDT 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 components, and MEMS sensors for automotive, industrial, and consumer markets.
The TS914 series belongs to ST's precision analog portfolio, engineered specifically for rail-to-rail performance in automotive signal conditioning - targeting high-reliability, low-power, and wide-supply applications where sensor interface fidelity is critical.
FAQ
Is TS914AIYDT pin-compatible with TS914IDT?
Yes - both share identical SO-14 pinout and electrical specifications. TS914AIYDT adds AEC-Q100 Grade 1 qualification, extended temperature screening (−40 °C to +125 °C), and automotive-grade traceability, while retaining full functional and mechanical compatibility with TS914IDT.
What is the maximum capacitive load the TS914AIYDT can drive stably?
The TS914AIYDT remains unity-gain stable with up to 100 pF capacitive load when driving 10 kΩ resistive loads, as verified in Figure 8 (gain/phase vs. frequency). For loads exceeding 100 pF, a series resistor (≥100 Ω) between output and capacitor is recommended to maintain phase margin above 30°.
Does TS914AIYDT support dual-supply operation?
Yes - it operates with dual supplies from ±1.35 V to ±8 V (equivalent to total supply 2.7–16 V), with common-mode input range extending 0.2 V beyond each rail. This enables true bipolar signal processing in instrumentation-grade automotive test equipment and diagnostic tools.
Can TS914AIYDT replace LM324 in existing automotive designs?
No - LM324 is a bipolar-input quad op-amp with 20 nA input bias current and no rail-to-rail capability. TS914AIYDT requires redesign of input biasing and feedback networks due to its CMOS inputs, rail-to-rail swing, and 1 pA bias current; it is not a drop-in replacement but offers superior performance in high-impedance, low-voltage applications.
TS914AIYDT 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:
- 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:
- 5 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
TS914AIYDT FAQ
1.How can I place an order for TS914AIYDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS914AIYDT 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 TS914AIYDT reliable?
The price and inventory of TS914AIYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS914AIYDT is usually 5 days.
3.What payment methods are accepted for TS914AIYDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS914AIYDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS914AIYDT?
TS914AIYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS914AIYDT 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 TS914AIYDT?
For technical support, including TS914AIYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS914AIYDT requirements.
6.How does Aetrix verify that TS914AIYDT is sourced from the original manufacturer or authorized distributors?
All TS914AIYDT 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 TS914AIYDT meets industry standards.
7.What is the process for return or replacement of TS914AIYDT?
All TS914AIYDT units undergo pre-shipment inspection (PSI). If there is an issue with TS914AIYDT, 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 TS914AIYDT part is unused and in its original packaging.
Return procedure for TS914AIYDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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