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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

STMicroelectronics LM2902YDT

Name: LM2902YDT
Brand: STMicroelectronics
SKU: LM2902YDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LM2902YDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: LM2902YDT.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14SO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

LM2902YDT from STMicroelectronics is a quad low-power operational amplifier IC designed for automotive-grade signal conditioning in single-supply systems. It delivers 1.3 MHz gain bandwidth, 100 dB large-signal voltage gain, and rail-to-rail input common-mode range extending to the negative rail - enabling robust sensor interfacing and analog front-end design in 3 V to 30 V applications.

For engineers reviewing the LM2902YDT datasheet, LM2902YDT pinout, LM2902YDT application, or LM2902YDT equivalent, key selection criteria include its AEC-Q100 qualified SO14 automotive package, 375 µA per-amplifier supply current, 20 nA input bias current, and guaranteed operation from –40 °C to +125 °C.

Technical Context

The LM2902YDT integrates four independent internally compensated op amps with PNP-input stage architecture, enabling true single-supply operation down to 3 V while maintaining stable DC performance across temperature. Its input stage supports common-mode voltages from ground to (V_CC+ – 1.5 V), and output swing reaches within ~20 mV of ground and ~3 V below V_CC+ under 10 kΩ load.

Designed for automotive control units and industrial sensors, it features ESD protection (370 V HBM), thermal shutdown margin (T_j ≤ 150 °C), and channel separation >120 dB at 1–20 kHz - critical for multi-channel signal acquisition where crosstalk must be minimized.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain bandwidth product	1.3 MHz - enables stable unity-gain buffer or 10× inverting amplifier up to ~130 kHz
Large-signal voltage gain	100 dB (typ.) - ensures <10 µV output error for 1 V input step in closed-loop configurations
Input bias current	20 nA (typ.) - minimizes offset drift in high-impedance sensor interfaces (e.g., thermistors, pH electrodes)
Supply current per amplifier	375 µA - allows four-channel analog signal conditioning in battery-powered ECUs with <1.5 mA total quiescent draw
Common-mode input range	Includes negative rail - supports direct connection to grounded sensors without level-shifting circuitry
Operating temperature	–40 °C to +125 °C - qualified for engine bay and transmission control module deployment
Output short-circuit current	20 mA (max) - provides fault tolerance against transient overloads in motor driver feedback paths

Pinout & Package

LM2902YDT is supplied in SO14 (Small Outline, 14-pin) package with wettable flank compatibility for automated optical inspection. Pin numbering follows standard top-view orientation with pin 1 marked by notch or dot.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting input (AMP1)	Accepts inverted-phase signal; high-impedance node requiring guarded routing in precision designs
2	Non-inverting input (AMP1)	Reference input for differential sensing; common-mode range includes ground
3	Output (AMP1)	Capable of sourcing/sinking ≥10 mA; requires local 100 pF bypass near load for stability
4	V_CC– (GND)	Power return for all four amplifiers; must be low-impedance plane to minimize PSRR degradation
5	Inverting input (AMP2)	Independent channel input; electrically isolated from AMP1 inputs per internal die layout
6	Non-inverting input (AMP2)	Supports same input voltage range as pin 2; no internal cross-coupling with other channels
7	Output (AMP2)	Drives external load directly; output stage exhibits symmetrical sink/source capability
8	V_CC+	Positive supply rail; accepts 3–30 V DC; decoupling capacitor required within 5 mm
9	Inverting input (AMP3)	Third channel input; shares same PNP input structure and bias current characteristics as pins 1/5
10	Non-inverting input (AMP3)	Enables three-channel differential measurement without external level shifters
11	Output (AMP3)	Provides buffered output with 0.4 V/µs slew rate - suitable for driving 10 kΩ loads at ≤100 kHz
12	Inverting input (AMP4)	Final channel input; validated for continuous operation at V_IN = –0.3 V to (V_CC+ – 1.5 V)
13	Non-inverting input (AMP4)	Matches input offset voltage drift (7–30 µV/°C) across all four channels per datasheet Table 3
14	Output (AMP4)	Delivers rail-to-rail compatible output swing; VOL ≤ 20 mV at 10 kΩ load and T_A = 125 °C

Key Features

Feature	Design Value
Rail-to-rail input common-mode range	Extends to negative supply rail, eliminating need for input biasing resistors in grounded-sensor applications
Low input bias current (20 nA)	Reduces voltage error in high-Z transducer interfaces (e.g., piezoelectric accelerometers, strain gauges)
Automotive qualification (AEC-Q100 Grade 2)	Validated for under-hood environments with guaranteed parametric performance over –40 °C to +125 °C
Internal frequency compensation	Enables stable unity-gain operation without external compensation components across full temperature range
High channel separation (>120 dB)	Prevents inter-channel crosstalk in multi-signal acquisition systems such as engine knock detection arrays

Applications

Engine Coolant Temperature Sensing

Brake Pressure Signal Conditioning

Use Scenario: Amplifying low-level resistance changes from NTC thermistors mounted in coolant passages.

IC Role / Device Role / Timing Role: Quad op amp configured as precision non-inverting amplifier (gain = 101) and reference buffer for ratiometric ADC interface.

Use Value: Input common-mode range including ground enables direct thermistor-to-ground connection; 20 nA bias current limits self-heating error to <0.1 °C at 10 kΩ sensor impedance.

Use Scenario: Conditioning millivolt-level output from piezoresistive brake pressure transducers.

IC Role / Device Role / Timing Role: First-stage instrumentation amplifier (using two LM2902YDT op amps) with adjustable gain and common-mode rejection.

Use Value: 100 dB open-loop gain ensures <0.01% gain error over temperature; 120 dB channel separation prevents cross-talk between dual-circuit brake systems.

Transmission Control Module Analog Inputs

Electric Power Steering Torque Sensing

Use Scenario: Multiplexed analog signal acquisition from speed, position, and oil temperature sensors.

IC Role / Device Role / Timing Role: Four independent buffers driving multiplexer inputs, each with dedicated 100 pF output filter.

Use Value: 375 µA per amplifier enables full 4-channel buffering within 2 mA system budget; SO14 wettable flank ensures solder joint reliability during thermal cycling.

Use Scenario: Amplifying Wheatstone bridge outputs from torque-sensing strain gauges in EPS motor assemblies.

IC Role / Device Role / Timing Role: High-Z differential amplifier front-end with matched resistor network for common-mode rejection.

Use Value: Input offset voltage drift ≤30 µV/°C maintains <0.5% torque accuracy over full operating range; AEC-Q100 qualification guarantees lifetime reliability in safety-critical steering functions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad operational amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LM2902DT	Same silicon die, standard industrial grade (–40 °C to +125 °C), SO14 packaging without AEC-Q100 screening	Lacks automotive qualification testing; not approved for safety-critical vehicle subsystems	Select when cost sensitivity outweighs automotive compliance requirements
TSV914IDT	Higher GBW (8 MHz), lower input offset (1.5 mV max), but higher supply current (800 µA/amplifier) and narrower V_CC range (2.7–5.5 V)	Optimized for low-voltage, high-speed applications; incompatible with 12 V or 24 V automotive rails	Select only for battery-powered ADAS camera modules requiring faster response than LM2902YDT provides

Compared with LM2902DT, LM2902YDT adds AEC-Q100 stress testing and tighter parametric screening for automotive use, while TSV914IDT trades supply voltage flexibility and quiescent power for speed - making LM2902YDT the optimal choice for cost-sensitive, wide-rail, thermally demanding engine control analog signal chains.

Availability

LM2902YDT is available at Aetrix Electronics and suitable for automotive engine control units, brake-by-wire systems, and transmission control modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LM2902YDT 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, delivering intelligent power, analog, MEMS, and microcontroller solutions for automotive, industrial, and consumer markets.

The LM2902 product line targets cost-optimized, high-reliability analog signal conditioning in harsh-environment applications - specifically engineered for automotive subsystems where wide supply range, rail-to-rail input, and AEC-Q100 compliance are mandatory.

FAQ

Is LM2902YDT pin-compatible with LM2902DT?

Yes, LM2902YDT and LM2902DT share identical SO14 pinout, electrical specifications, and functional behavior. The YDT variant adds AEC-Q100 qualification and enhanced screening - no PCB redesign is needed when upgrading from DT to YDT for automotive deployment.

Can LM2902YDT operate from a single 5 V supply?

Yes, LM2902YDT is fully specified for single-supply operation from 3 V to 30 V. At 5 V, it delivers 100 dB gain, 1.3 MHz GBW, and input common-mode range from 0 V to 3.5 V - enabling direct interfacing with 3.3 V microcontrollers and ratiometric sensors.

What is the maximum output current capability per amplifier?

Each amplifier in the LM2902YDT can continuously source or sink up to 20 mA, as verified under V_CC+ = 15 V, V_id = 1 V, and V_o = 2 V conditions. Short-circuit duration is unlimited, but thermal derating applies above ambient temperatures of 85 °C.

Does LM2902YDT require external compensation capacitors?

No - LM2902YDT incorporates internal frequency compensation optimized for unity-gain stability across its full operating range. External compensation is unnecessary for standard inverting/non-inverting configurations; only specialized high-gain or capacitive-load applications may require minor output RC damping.

LM2902YDT 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:: 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-SO

LM2902YDT FAQ

1.How can I place an order for LM2902YDT through Aetrix?

Please submit a Request for Quotation (RFQ) for LM2902YDT 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 LM2902YDT reliable?

The price and inventory of LM2902YDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2902YDT is usually 5 days.

3.What payment methods are accepted for LM2902YDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2902YDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LM2902YDT?

LM2902YDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LM2902YDT 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 LM2902YDT?

For technical support, including LM2902YDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2902YDT requirements.

6.How does Aetrix verify that LM2902YDT is sourced from the original manufacturer or authorized distributors?

All LM2902YDT 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 LM2902YDT meets industry standards.

7.What is the process for return or replacement of LM2902YDT?

All LM2902YDT units undergo pre-shipment inspection (PSI). If there is an issue with LM2902YDT, 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 LM2902YDT part is unused and in its original packaging.

Return procedure for LM2902YDT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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