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STMicroelectronics LM2902YPT
- Part No.:
- LM2902YPT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2902YPT.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:12,568
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Product details
Overview
LM2902YPT from STMicroelectronics is a quad low-power operational amplifier designed for automotive-grade signal conditioning in single-supply industrial and vehicle control systems. It delivers 1.3 MHz gain bandwidth, 100 dB large-signal voltage gain, ±1.5 V to ±15 V dual or 3 V to 30 V single supply operation, and rail-to-rail input common-mode range extending to the negative rail - enabling direct interfacing with sensors and microcontroller ADCs in 5 V and 12 V automotive subsystems.
For engineers reviewing the LM2902YPT datasheet, LM2902YPT pinout, LM2902YPT application, or LM2902YPT equivalent, key selection criteria include its guaranteed –40 °C to +125 °C operation, 375 µA per amplifier supply current, 20 nA input bias current, and TSSOP-14 wettable flank package compatibility with automated optical inspection (AOI) and solder joint reliability validation in safety-critical ECUs.
Technical Context
The LM2902YPT integrates four independent internally compensated op amps using PNP input-stage architecture, enabling input voltages down to the negative rail (VCC–) and supporting true single-supply sensor front-end designs. Its open-loop gain remains ≥25 V/mV across temperature and supply voltage variations, and its input offset voltage drift is specified at 7–30 µV/°C - critical for precision DC-coupled amplification in battery monitoring and motor current sensing.
Designed for AEC-Q100 Grade 2 compliance, the device features ESD robustness (370 V HBM), thermal resistance of 100 °C/W (TSSOP14), and output short-circuit protection with 20 mA typical sink/source capability. The QFN16 wettable flank variant (LM2902YQ5T) shares identical electrical specs but offers lower Rthja (45 °C/W) and enhanced solder-joint inspection capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain bandwidth product | 1.3 MHz - supports stable unity-gain buffer and 10× inverting amplifier configurations up to ~130 kHz without phase margin loss. |
| Large-signal voltage gain | 100 dB (typ.) - ensures ≤0.1% gain error in 100× instrumentation amplifier topologies over full temperature range. |
| Input bias current | 20 nA (typ.) - enables high-impedance sensor interfaces (e.g., thermistors, pH electrodes) without significant offset shift. |
| Supply voltage range | 3 V to 30 V single or ±1.5 V to ±15 V dual - accommodates 5 V MCU logic rails and 24 V industrial bus systems in one BOM. |
| Input common-mode range | Includes VCC– - allows direct connection of ground-referenced transducers (e.g., strain gauges, current shunts) without level-shifting circuitry. |
| Operating temperature | –40 °C to +125 °C - qualified per AEC-Q100 Grade 2 for under-hood automotive applications including engine control and ADAS power domains. |
| Output short-circuit current | 20 mA (typ.) - sustains continuous drive into 10 kΩ loads while maintaining linearity; limits fault energy during wiring shorts. |
Pinout & Package
LM2902YPT is supplied in a 14-lead TSSOP package with wettable flanks (JEDEC MO-220WEED), optimized for AOI-compatible solder joint inspection and thermal performance (Rthja = 100 °C/W). Pin 1 is located at the bottom-left corner when the marking dot is oriented top-left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Amp 1) | High-impedance differential node accepting feedback network for inverting configurations; referenced to VCC–. |
| 2 | Non-inverting input (Amp 1) | Accepts sensor or reference signals; common-mode range extends to VCC–, enabling ground-sensing applications. |
| 3 | Output (Amp 1) | Class-AB output stage capable of sourcing/sinking ≥10 mA into 10 kΩ loads; rail-to-rail swing limited by headroom (~1.5 V). |
| 4 | VCC– (Ground / Negative Supply) | Reference return for all four amplifiers; must be connected directly to system ground plane for noise immunity. |
| 5 | Non-inverting input (Amp 2) | Independent input for second channel; electrically isolated from Amp 1 - no crosstalk above 120 dB at 1 kHz. |
| 6 | Inverting input (Amp 2) | Feedback node for second amplifier; supports active filter and summing configurations without inter-channel coupling. |
| 7 | Output (Amp 2) | Drives separate load; output short-circuit protected - safe for direct connection to LEDs or comparator inputs. |
| 8 | Output (Amp 3) | Third independent output; shares same supply pins - layout requires local decoupling (100 nF ceramic) near VCC+ and VCC–. |
| 9 | Inverting input (Amp 3) | Configurable as transimpedance input for photodiode amplification; low input bias current minimizes dark-current error. |
| 10 | Non-inverting input (Amp 3) | Supports DC-coupled differential sensing; input offset voltage drift <30 µV/°C maintains accuracy across thermal cycles. |
| 11 | VCC+ (Positive Supply) | Primary power rail; accepts 3–30 V; supply current per amp is 375 µA - enables always-on monitoring circuits with <1.5 mA total quiescent draw. |
| 12 | Non-inverting input (Amp 4) | Fourth channel input; suitable for reference buffering or window comparator thresholds due to low input offset (2 mV typ.). |
| 13 | Inverting input (Amp 4) | Used in active rectifier or peak detector topologies; internal clamping diodes protect against –0.3 V overdrive. |
| 14 | Output (Amp 4) | Final output stage; slew rate 0.4 V/µs - adequate for <100 kHz signal conditioning without distortion. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range (to VCC–) | Eliminates need for negative supply or level-shifting in single-supply sensor interfaces like battery voltage monitors and throttle position circuits. |
| 1.3 MHz gain-bandwidth product | Enables stable closed-loop operation in 2nd-order active filters (e.g., bandpass for knock detection) with <1% passband ripple. |
| 375 µA per amplifier supply current | Supports always-on diagnostic functions in automotive body control modules with <1.5 mA total quiescent draw across all four channels. |
| AEC-Q100 Grade 2 qualification | Validated for operation from –40 °C to +125 °C ambient, meeting reliability requirements for engine bay and transmission control units. |
| TSSOP-14 wettable flank package | Facilitates automated optical inspection of solder fillets on side walls - critical for zero-defect manufacturing in safety-critical ECU production. |
Applications
| Battery Voltage Monitoring | Engine Coolant Temperature Sensing |
|---|---|
|
Use Scenario: Real-time 12 V lead-acid battery voltage measurement in start-stop systems, with scaling to MCU ADC input range (0–3.3 V). IC Role / Device Role / Timing Role: Quad op amp configured as precision resistive divider buffer and offset-compensated level shifter. Use Value: Input common-mode range to VCC– enables direct connection to battery negative terminal; 20 nA input bias current prevents loading of high-resistance voltage dividers. |
Use Scenario: Linearization and amplification of NTC thermistor output in engine coolant loop, compensating for nonlinearity across –40 °C to +130 °C. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end (using two op amps) with third channel for reference voltage generation and fourth for fault detection. Use Value: 100 dB open-loop gain ensures <0.1% gain error in 100× amplification; 7–30 µV/°C offset drift maintains calibration stability over thermal cycling. |
| Brake-by-Wire Signal Conditioning | ADAS Power Domain Supervision |
|
Use Scenario: Redundant pedal position sensor signal amplification and comparison in brake-by-wire actuators, requiring dual-channel fault-tolerant analog processing. IC Role / Device Role / Timing Role: Two independent amplifiers per sensor channel (primary + backup), with fourth channel performing cross-check comparison and error flag generation. Use Value: Channel separation >120 dB at 1 kHz prevents interference between redundant paths; AEC-Q100 Grade 2 rating ensures functional safety compliance per ISO 26262 ASIL-B. |
Use Scenario: Monitoring of 5 V and 3.3 V power rails in radar ECU, detecting undervoltage/overvoltage conditions before digital logic resets. IC Role / Device Role / Timing Role: Quad comparator substitute: three op amps configured as precision window comparators for each rail, fourth used for hysteresis generation. Use Value: Input offset voltage ≤7 mV (typ.) enables accurate 100 mV threshold detection; 30 V max supply allows direct connection to unregulated 24 V input without external regulators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-power op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2902DT | Same electrical specs, SO-14 package (Rthja = 105 °C/W), non-automotive grade. | Lacks AEC-Q100 qualification; not approved for under-hood use; suitable for industrial control panels with <85 °C ambient. | Select when cost sensitivity outweighs automotive qualification and thermal performance is less constrained. |
| TSV914IQ4T | Higher GBP (8 MHz), lower input bias (1 pA), but narrower supply range (2.7–5.5 V) and no VCC–-to-rail input. | Optimized for 3.3 V MCU-based systems only; unsuitable for 12/24 V automotive domains or ground-referenced sensors. | Choose only for low-voltage, high-speed applications where rail-to-rail input is not required and AEC-Q100 is not mandated. |
Compared with LM2902DT, LM2902YPT adds AEC-Q100 Grade 2 qualification and wettable flank packaging for AOI; compared with TSV914IQ4T, it trades speed for wide supply range, rail-to-rail input, and automotive robustness - making it uniquely suited for legacy 5/12/24 V automotive signal chains.
Availability
LM2902YPT is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor signal conditioning, and battery management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM2902YPT 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 components for automotive, industrial, and consumer markets.
LM2902YPT belongs to ST's automotive-qualified precision analog portfolio, developed specifically to replace legacy bipolar op amps in safety-critical vehicle subsystems while maintaining pin compatibility and simplifying qualification reuse.
FAQ
Is LM2902YPT pin-compatible with standard LM2902 variants?
Yes - LM2902YPT uses the industry-standard TSSOP-14 footprint and pinout defined in JEDEC MO-220WEED. It shares identical electrical behavior and pin assignments with LM2902DT and LM2902D, enabling drop-in replacement in existing layouts without redesign. The "Y" suffix denotes AEC-Q100 Grade 2 qualification and wettable flank leads, but mechanical and functional compatibility is preserved.
What is the maximum capacitive load the LM2902YPT can drive stably?
LM2902YPT is internally compensated for unity-gain stability with capacitive loads up to 100 pF, as verified in Figure 11 (open-loop frequency response) and Figure 8 (pulse response). Driving >100 pF requires external isolation resistor (≥100 Ω) in series with the output to prevent peaking or oscillation - a requirement confirmed in application note AN2867 for TSSOP-packaged op amps.
Does LM2902YPT support dual-supply operation with asymmetric rails?
Yes - the device operates with any combination of VCC+ and VCC– satisfying |VCC+ − VCC–| ≤ 32 V and VCC– ≥ –16 V, per Table 1 Absolute Maximum Ratings. For example, VCC+ = +12 V and VCC– = –5 V is valid, enabling specialized signal conditioning where negative headroom is needed without full symmetric supplies.
How does the wettable flank feature improve manufacturing yield?
The wettable flank geometry on LM2902YPT's TSSOP-14 package exposes vertical copper sidewalls that accept solder wicking during reflow, enabling automated optical inspection (AOI) systems to verify solder fillet formation and voiding. This reduces field failures from insufficient solder joints in safety-critical automotive assemblies, as validated in IPC-J-STD-001 Class 3 and IATF 16949 process audits.
LM2902YPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Push-Pull
- Slew Rate:
- 0.4V/µs
- Gain Bandwidth Product:
- 1.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 1.5mA (x4 Channels)
- Current - Output / Channel:
- 60 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LM2902YPT FAQ
1.How can I place an order for LM2902YPT through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2902YPT 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 LM2902YPT reliable?
The price and inventory of LM2902YPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2902YPT is usually 5 days.
3.What payment methods are accepted for LM2902YPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2902YPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2902YPT?
LM2902YPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2902YPT 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 LM2902YPT?
For technical support, including LM2902YPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2902YPT requirements.
6.How does Aetrix verify that LM2902YPT is sourced from the original manufacturer or authorized distributors?
All LM2902YPT 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 LM2902YPT meets industry standards.
7.What is the process for return or replacement of LM2902YPT?
All LM2902YPT units undergo pre-shipment inspection (PSI). If there is an issue with LM2902YPT, 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 LM2902YPT part is unused and in its original packaging.
Return procedure for LM2902YPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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