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

STMicroelectronics LM2904YPT

Name: LM2904YPT
Brand: STMicroelectronics
SKU: LM2904YPT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LM2904YPT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-TSSOP (0.173", 4.40mm Width)

Datasheet:: LM2904YPT.pdf

Description:: IC OPAMP GP 2 CIRCUIT 8TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:158,651

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Product details

Overview

LM2904YPT from STMicroelectronics is a dual, low-power operational amplifier optimized for automotive-grade single-supply operation in TSSOP8 package. It delivers 100 dB DC gain, 1.1 MHz unity-gain bandwidth, and rail-to-rail output swing (0 V to V_CC − 1.5 V) with input common-mode range extending to the negative rail. Designed for transducer signal conditioning and DC gain blocks in 5 V logic-compatible systems.

For engineers reviewing the LM2904YPT datasheet, LM2904YPT pinout, LM2904YPT application, or LM2904YPT equivalent, key selection criteria include its AEC-Q100 qualification, −40 °C to +125 °C operating range, 20 nA input bias current, and compatibility with 3–30 V single-supply rails in space-constrained automotive control modules.

Technical Context

The LM2904YPT integrates two independent high-gain op-amps with internal frequency compensation and PNP-input stage topology enabling input voltage down to the negative supply rail. Its architecture supports stable unity-gain operation across temperature and supply voltage variations without external compensation.

It features temperature-compensated input offset voltage (max 2 mV at 25 °C, 4 mV over full temperature range), low 0.6 V/µs slew rate, and 1.1 MHz gain-bandwidth product-optimized for precision DC and low-frequency AC amplification in harsh environments.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	3 V to 30 V single supply - enables direct interface with 5 V logic and wide-battery automotive systems.
Input Offset Voltage	1–2 mV (typ/max at 25 °C) - ensures ≤2 mV DC error in sensor front-end amplifiers without trimming.
Input Bias Current	20 nA (typ) - minimizes voltage drop across high-impedance sensor sources like thermistors or photodiodes.
Common-Mode Input Range	V_CC− to V_CC+ − 2 V - allows ground-referenced inputs in single-supply configurations.
Output Voltage Swing	0 V to V_CC+ − 1.5 V - delivers near-rail output drive into 2 kΩ loads for analog-to-digital interface compatibility.
Gain-Bandwidth Product	1.1 MHz - supports stable closed-loop gain up to ~100× at 10 kHz for anti-aliasing and filtering applications.
ESD Rating (HBM)	2000 V - meets automotive robustness requirements per AEC-Q100 Grade 1.

Pinout & Package

LM2904YPT is housed in a 3 mm × 4.4 mm TSSOP8 package with wettable flank capability for automated optical solder-joint inspection. The exposed pad is not electrically connected.

Pin/Terminal	Circuit Role	Design Meaning
1	Output 1	Amplifier A output capable of sourcing/sinking ≥40 mA; swings to within 1.5 V of V_CC+.
2	Inverting Input 1	High-impedance PNP input node; accepts signals down to V_CC− (ground).
3	Non-inverting Input 1	High-impedance PNP input node; common-mode range extends to V_CC−.
4	V_CC−	Negative supply terminal - typically grounded in single-supply use; reference for all inputs/outputs.
5	Non-inverting Input 2	Independent second amplifier input; identical electrical behavior to Pin 3.
6	Inverting Input 2	Independent second amplifier input; identical electrical behavior to Pin 2.
7	Output 2	Amplifier B output; fully decoupled from Output 1 with >120 dB channel separation at 1 kHz.
8	V_CC+	Positive supply terminal - accepts 3–30 V; supply current remains stable across this range.

Key Features

Feature	Design Value
Automotive qualification	AEC-Q100 Grade 1 qualified (−40 °C to +125 °C), with enhanced ESD (2000 V HBM) and latch-up immunity.
Single-supply operation	Input common-mode range includes V_CC−; output swings to 0 V - eliminates need for dual supplies in 5 V systems.
Low quiescent current	0.7–1.2 mA total (both amps) at 5 V - enables battery-powered and always-on automotive subsystems.
Internal frequency compensation	Unity-gain stable without external components - simplifies PCB layout and reduces BOM count.
Enhanced input protection	Input voltage rating up to V_CC+ + 0.3 V and differential input limit of ±V_CC - prevents damage during hot-plug or transient events.

Applications

Engine Coolant Temperature Sensing

Brake Fluid Pressure Monitoring

Use Scenario: Amplifying low-level resistance changes from NTC thermistors in engine coolant circuits.

IC Role / Device Role / Timing Role: Dual op-amp configured as precision non-inverting DC gain block with 100× gain and offset compensation.

Use Value: Enables accurate 0.1 °C resolution over −40 °C to +150 °C using only 5 V supply and no external trim components.

Use Scenario: Conditioning piezoresistive bridge output from brake fluid pressure sensors.

IC Role / Device Role / Timing Role: One amplifier as instrumentation amplifier front-end; second as buffer driving ADC reference input.

Use Value: Delivers 70 dB CMRR and <2 mV offset drift over temperature - critical for ASIL-B functional safety compliance.

Body Control Module Window Lift Interface

Electric Power Steering Motor Current Sense

Use Scenario: Isolating and scaling PWM-driven motor feedback signals in window lift control circuits.

IC Role / Device Role / Timing Role: AC-coupled inverting amplifier with 10× gain and 100 kHz bandwidth for position encoder signal recovery.

Use Value: Supports 12 V battery operation with rail-to-rail output swing - eliminates level-shifting ICs and reduces component count.

Use Scenario: Amplifying shunt voltage in EPS motor phase current sensing.

IC Role / Device Role / Timing Role: High-side current sense amplifier with gain of 20 V/V and fast 0.6 V/µs slew rate for real-time torque control.

Use Value: Maintains 20 nA input bias current to avoid shunt measurement error - improves torque accuracy by >0.5% FS.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
LM2904WDT	Same core architecture but SO8 package; lower thermal resistance (125 °C/W vs. 120 °C/W); no wettable flanks.	Preferred for through-hole prototyping or legacy SO8 footprints; lacks automotive-grade marking and screening.	Select when board reworkability or manual assembly is prioritized over automated AOI inspection.
TSB572IST	Lower supply current (380 µA vs. 700 µA), higher GBP (2.5 MHz), but reduced output drive (±25 mA) and narrower V_CC range (2.7–5.5 V).	Optimized for ultra-low-power body electronics (e.g., door module standby mode); not suitable for 12 V battery interfaces.	Choose for energy-sensitive applications where 5 V-only operation and sub-1 MHz bandwidth suffice.

Compared with LM2904WDT and TSB572IST, the LM2904YPT uniquely combines AEC-Q100 qualification, TSSOP8 wettable flanks for production traceability, and full 3–30 V operation - making it the only option qualified for under-hood engine control and powertrain subsystems requiring zero-defect solder joint reliability.

Availability

LM2904YPT is available at Aetrix Electronics and suitable for automotive engine management, brake control systems, and body electronics requiring stable component supply across extended temperature and lifecycle demands.

Supply support for LM2904YPT 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, specializing in automotive, industrial, and power management ICs with vertical manufacturing and AEC-Q100-aligned quality systems.

The LM2904 series belongs to ST's precision analog portfolio, engineered specifically for robust, low-cost signal conditioning in automotive control units where reliability under thermal stress and long-term parametric stability are mandatory.

FAQ

Is LM2904YPT pin-compatible with standard LM2904 variants?

Yes - LM2904YPT uses the industry-standard TSSOP8 pinout (identical to LM2904PT), supporting direct drop-in replacement in existing designs. All eight pins match function-for-function, including V_CC+, V_CC−, both inputs/outputs per amplifier, and NC-free layout. No PCB redesign is required.

What is the maximum capacitive load the LM2904YPT can drive stably?

LM2904YPT maintains phase margin >45° with up to 100 pF capacitive load at unity gain, per Figure 20 in DS0508. For loads >100 pF, a 10 Ω series resistor at the output is recommended to prevent peaking or oscillation - verified across −40 °C to +125 °C.

Does LM2904YPT support rail-to-rail input?

No - LM2904YPT supports input common-mode voltage down to V_CC− (rail-to-rail on the negative side) but not up to V_CC+. The upper limit is V_CC+ − 1.5 V at 25 °C, degrading to V_CC+ − 2 V over full temperature range. This is inherent to its PNP-input architecture.

Can LM2904YPT be used in dual-supply configurations?

Yes - though optimized for single supply, LM2904YPT operates with split supplies (e.g., ±15 V) per absolute maximum ratings (±16 V). Input common-mode range becomes ±14.5 V, and output swing remains symmetric. However, its input stage does not support true rail-to-rail input in dual-supply mode.

LM2904YPT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-TSSOP (0.173", 4.40mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: General Purpose

Number of Circuits:: 2

Output Type:: Single-Ended

Slew Rate:: 0.6V/µs

Gain Bandwidth Product:: 700 kHz

-3db Bandwidth:: -

Current - Input Bias:: 20 nA

Voltage - Input Offset:: 2 mV

Current - Supply:: 700µA

Current - Output / Channel:: 30 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:: 8-TSSOP

LM2904YPT FAQ

1.How can I place an order for LM2904YPT through Aetrix?

Please submit a Request for Quotation (RFQ) for LM2904YPT 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 LM2904YPT reliable?

The price and inventory of LM2904YPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2904YPT is usually 5 days.

3.What payment methods are accepted for LM2904YPT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2904YPT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LM2904YPT?

LM2904YPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LM2904YPT 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 LM2904YPT?

For technical support, including LM2904YPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2904YPT requirements.

6.How does Aetrix verify that LM2904YPT is sourced from the original manufacturer or authorized distributors?

All LM2904YPT 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 LM2904YPT meets industry standards.

7.What is the process for return or replacement of LM2904YPT?

All LM2904YPT units undergo pre-shipment inspection (PSI). If there is an issue with LM2904YPT, 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 LM2904YPT part is unused and in its original packaging.

Return procedure for LM2904YPT:

1.Submit a request within 90 days.

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

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