My Inquiry
My Account
Texas Instruments LM2904BIPWR
- Part No.:
- LM2904BIPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2904BIPWR.pdf
- Description:
- IC POWER
- Quantity:
- Payment:
- Shipping:
Inventory:5,285
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM2904BIPWR from Texas Instruments is a dual general-purpose operational amplifier optimized for industrial and automotive applications, featuring 3V–36V supply range, 300µA/ch quiescent current, 1.2MHz unity-gain bandwidth, rail-to-rail input (including ground), and ±3mV max input offset voltage at 25°C. It serves as a precision signal conditioning and amplification stage in motor control feedback loops, power supply error amplifiers, and sensor interface circuits.
For engineers reviewing the LM2904BIPWR datasheet, LM2904BIPWR pinout, LM2904BIPWR application, or LM2904BIPWR equivalent, this page delivers verified electrical specifications, package-validated pin functions, temperature-rated performance data (−40°C to +125°C), EMI/RF filtering capability, and direct alternative part comparisons - all aligned with TI's SLOS068AB production datasheet (October 2024).
Technical Context
The LM2904BIPWR implements a bipolar-input, internally compensated two-stage op amp architecture with common-mode input voltage range extending to V− (ground in single-supply operation) and output swing within 20mV of V− and 1.61V of V+ (at 5mA load). Its 1.2MHz gain-bandwidth product and 0.5V/µs slew rate support stable closed-loop operation at unity gain across its full operating temperature range.
Designed for rugged environments, it integrates on-die RF/EMI filters and achieves ±2000V HBM ESD rating. The device operates with supply voltages up to ±18V (or 36V single-ended) and supports differential input voltages up to ±32V - enabling use in high-common-mode-voltage sensing such as current shunt monitoring and battery cell voltage measurement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 36V - supports wide-input industrial power rails and automotive battery systems (12V/24V nominal with load dump tolerance) |
| Quiescent Current | 300µA per amplifier (typical at 5V) - enables low-power always-on monitoring without compromising battery life |
| Unity-Gain Bandwidth | 1.2MHz - sufficient for closed-loop control of DC motors, switching power supply compensation, and audio pre-amplification |
| Input Offset Voltage | ±3mV maximum at 25°C - ensures accurate DC-coupled signal amplification in sensor front-ends and precision reference buffers |
| Common-Mode Input Range | Includes V− (ground) - allows direct sensing of signals referenced to system ground, e.g., shunt-based current measurement |
| ESD Rating (HBM) | ±2000V - meets IEC 61000-4-2 Level 3 immunity requirements for industrial control interfaces |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial motor drives, and outdoor power electronics |
Pinout & Package
TSSOP-8 (PW) package: 3mm × 6.4mm body, 0.65mm pitch, surface-mount, moisture-sensitive level 1 (MSL-1), RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Output | Amplifier 1 output - drives external loads up to 20mA sink/source; rail-to-rail capable near V− |
| 2 (IN1−) | Inverting Input | Differential input node for Amp1 - accepts signals down to V−, enabling true single-supply operation |
| 3 (IN1+) | Non-inverting Input | Reference input for Amp1 - high-impedance (>4GΩ) node suitable for high-Z sensor connections |
| 4 (V−) | Negative Supply | Lowest potential rail - tied to ground in single-supply configurations; defines lower common-mode limit |
| 5 (IN2+) | Non-inverting Input | Reference input for Amp2 - electrically isolated from Amp1 inputs; supports independent dual-channel design |
| 6 (IN2−) | Inverting Input | Differential input node for Amp2 - shares same input stage specs as Pin 2 (IN1−) |
| 7 (OUT2) | Output | Amplifier 2 output - identical drive capability and output swing behavior as Pin 1 |
| 8 (V+) | Positive Supply | Highest potential rail - supports up to 36V, enabling direct connection to unregulated DC bus rails |
Key Features
| Feature | Design Value |
|---|---|
| Internal RF and EMI filter | Reduces susceptibility to conducted and radiated noise in motor drive and power converter environments |
| Rail-to-rail input (to V−) | Enables direct interfacing with ground-referenced sensors (e.g., thermistors, current shunts) without level-shifting circuitry |
| Unity-gain stable | Eliminates need for external compensation components in buffer, comparator hysteresis, or active filter designs |
| High differential input voltage (±32V) | Permits safe operation in high-side current sensing where input pins see large common-mode transients |
| Low quiescent current (300µA/ch) | Supports always-on diagnostic functions in battery-backed systems without significant standby power penalty |
Applications
| Motor Control Feedback | Power Supply Error Amplifier |
|---|---|
Use Scenario: Closed-loop speed regulation of brushed DC and BLDC motors using back-EMF or hall-effect sensor signals. IC Role / Device Role / Timing Role: Dual op amp configures one channel as current-sense amplifier (INA) and second as velocity loop integrator or comparator hysteresis generator. Use Value: Rail-to-rail input enables direct shunt voltage amplification; 1.2MHz GBW supports >10kHz loop bandwidth for responsive torque control. | Use Scenario: Regulating output voltage in AC/DC and DC/DC converters via feedback to PWM controller. IC Role / Device Role / Timing Role: Compensator in Type II or III error amplifier topology - one op amp provides integration, second adds zero/pole shaping. Use Value: ±3mV offset ensures <0.5% output voltage error at 5V; 300µA/ch quiescent current minimizes no-load power loss. |
| Industrial Sensor Interface | Automotive Cabin Climate Control |
Use Scenario: Signal conditioning for RTD, thermistor, or pressure transducer outputs in PLC analog input modules. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier (dual-op-amp diff-amp configuration) and second-stage low-pass filter. Use Value: −40°C to +125°C rating matches industrial ambient requirements; integrated EMI filter suppresses 100MHz–1GHz switching noise from nearby SMPS. | Use Scenario: Blower motor speed control and cabin temperature feedback in HVAC subsystems. IC Role / Device Role / Timing Role: Amplifies NTC thermistor voltage and drives PWM fan driver IC; second channel monitors battery voltage for undervoltage lockout. Use Value: 36V absolute max rating withstands automotive load dump (ISO 7637-2 Pulse 5a); ±2000V HBM protects against assembly-line ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2904QPWRQ1 | AEC-Q100 qualified, same electrical specs, enhanced automotive qualification (PPAP, lot traceability) | Required for safety-critical automotive ECUs (e.g., ADAS, powertrain); not needed for industrial non-safety systems | Select LM2904QPWRQ1 when automotive OEM compliance (TS 16949, AEC-Q100 Grade 1) is mandatory |
| LM358BIPWR | Same package and pinout; differs in temperature range (−40°C to +85°C vs. +125°C) and max offset voltage (±3mV same, but LM358B rated only to 85°C) | Suitable for commercial/industrial equipment with ambient <85°C; insufficient for under-hood or high-temp industrial enclosures | Choose LM358BIPWR only if system ambient stays ≤85°C and cost sensitivity outweighs thermal margin needs |
Compared with LM2904QPWRQ1, the LM2904BIPWR offers identical performance at lower cost and without automotive documentation overhead; versus LM358BIPWR, it provides extended high-temperature operation critical for motor drives and power supplies exposed to thermal stress.
Availability
LM2904BIPWR is available at Aetrix Electronics and suitable for motor control feedback, power supply error amplification, and industrial sensor interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM2904BIPWR 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
Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.
The LM2904B series belongs to TI's industry-standard dual op amp product line, engineered for cost-sensitive, high-reliability applications demanding wide supply range, ground-sensing capability, and robust EMI immunity in harsh environments.
FAQ
What is the maximum supply voltage rating for LM2904BIPWR?
The LM2904BIPWR supports a supply voltage range of 3V to 36V (single supply) or ±18V (dual supply), with absolute maximum ratings of ±20V or 40V total across V+ and V−. This allows direct use in 24V industrial systems and automotive 12V/24V platforms with transient overvoltage tolerance.
Does LM2904BIPWR support rail-to-rail input operation?
Yes, the LM2904BIPWR features rail-to-rail input capability down to the negative supply rail (V−), including ground in single-supply configurations. Its common-mode input voltage range extends from V− to (V+ − 1.5V) at room temperature and to (V+ − 2V) over full temperature range, enabling direct interfacing with ground-referenced sensors.
What is the input offset voltage specification for LM2904BIPWR at elevated temperatures?
The LM2904BIPWR has a maximum input offset voltage of ±3mV at 25°C and ±4mV over its full operating ambient temperature range of −40°C to +125°C. This guaranteed spec ensures predictable DC accuracy in motor control feedback and precision sensor amplification across automotive and industrial thermal profiles.
Can LM2904BIPWR drive capacitive loads without oscillation?
Yes, the LM2904BIPWR is characterized to safely drive up to 100pF capacitive loads while maintaining stability, as confirmed in TI's SLOS068AB datasheet. For larger loads, external isolation resistance (e.g., 10Ω–100Ω in series with output) is recommended to preserve phase margin and prevent peaking or ringing.
Is LM2904BIPWR pin-compatible with legacy LM2904 variants?
Yes, the LM2904BIPWR uses the standard TSSOP-8 (PW) footprint and identical pinout as LM2904, LM2904V, and LM2904BA in the same package - enabling drop-in replacement in existing designs. Electrical improvements include lower quiescent current (300µA vs. 350µA), tighter offset voltage (±3mV vs. ±7mV), and enhanced ESD (±2000V HBM vs. ±500V).
LM2904BIPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- 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:
- Push-Pull
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 nA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 300µA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
LM2904BIPWR FAQ
1.How can I place an order for LM2904BIPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2904BIPWR 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 LM2904BIPWR reliable?
The price and inventory of LM2904BIPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2904BIPWR is usually 5 days.
3.What payment methods are accepted for LM2904BIPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2904BIPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2904BIPWR?
LM2904BIPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2904BIPWR 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 LM2904BIPWR?
For technical support, including LM2904BIPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2904BIPWR requirements.
6.How does Aetrix verify that LM2904BIPWR is sourced from the original manufacturer or authorized distributors?
All LM2904BIPWR 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 LM2904BIPWR meets industry standards.
7.What is the process for return or replacement of LM2904BIPWR?
All LM2904BIPWR units undergo pre-shipment inspection (PSI). If there is an issue with LM2904BIPWR, 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 LM2904BIPWR part is unused and in its original packaging.
Return procedure for LM2904BIPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2904BIPWR Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
