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Texas Instruments LM2902PWRG3
- Part No.:
- LM2902PWRG3
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2902PWRG3.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,978
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Product details
Overview
LM2902PWRG3 from Texas Instruments is a quadruple operational amplifier optimized for single-supply operation, featuring rail-to-rail input (common-mode range includes V–), 3V to 36V supply capability, ±3mV max input offset voltage at 25°C, 1.2MHz gain-bandwidth product, and 240µA per amplifier quiescent current. It serves as a drop-in replacement for legacy LM2902 in industrial power supplies, HVAC control circuits, and AC inverter feedback loops.
For engineers reviewing the LM2902PWRG3 datasheet, LM2902PWRG3 pinout, LM2902PWRG3 application, or LM2902PWRG3 equivalent, key selection criteria include its extended –40°C to +125°C operating temperature range, integrated EMI/RF filtering, 2kV HBM ESD rating, and compatibility with cost-sensitive analog signal conditioning where ground-referenced inputs and robust output drive are required.
Technical Context
The LM2902PWRG3 implements a standard voltage-feedback op-amp architecture with unity-gain stability, enabling direct use in buffer, comparator, transimpedance, and active filter configurations without external compensation. Its input stage supports common-mode voltages down to the negative rail (V–), allowing direct sensing of signals referenced to ground in single-supply systems.
Each of the four amplifiers operates independently with matched DC characteristics across temperature; the device achieves 70dB minimum CMRR and 65dB PSRR over its full supply range, supporting stable performance in noisy industrial environments with varying supply rails and high common-mode interference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 36V - enables direct integration into 5V, 12V, 24V, and 32V industrial power rails without level-shifting. |
| Input Offset Voltage (max) | ±3mV at 25°C - ensures ≤3mV DC error in precision sensor amplification and low-level signal conditioning. |
| Gain-Bandwidth Product | 1.2MHz - supports closed-loop bandwidths up to ~100kHz at gain=10, suitable for motor current sensing and PWM reconstruction. |
| Quiescent Current (per amp) | 240µA typical - allows four-channel analog front-end operation within <1mA total supply budget for battery-backed systems. |
| Common-Mode Input Range | V– to (V+) – 2V - permits direct interface with ground-referenced sensors (e.g., thermistors, shunt resistors) in single-supply designs. |
| Output Swing (from rail) | 100mV above V– and 1.35V below V+ at IOUT = 50µA - delivers usable dynamic range near supply rails for ADC driver applications. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, industrial inverters, and outdoor HVAC control units. |
Pinout & Package
LM2902PWRG3 is packaged in a 14-pin TSSOP (PW) with 5mm × 6.4mm footprint and 0.65mm lead pitch. The package is RoHS-compliant, moisture-sensitive level 2a, and designed for automated surface-mount assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN– | Inverting input (Amp 1) | Negative differential input node; accepts signals down to V–, critical for current-sense amplifier topologies. |
| 1IN+ | Non-inverting input (Amp 1) | Positive differential input node; used for reference-based comparators and non-inverting buffers. |
| 1OUT | Output (Amp 1) | Amplified output capable of sourcing/sinking ≥10mA; drives ADC inputs, LED drivers, or MOSFET gates directly. |
| VCC+ | Positive supply | Highest potential supply rail; must be ≥3V above VCC– for valid operation; decoupling capacitor required at pin. |
| 2IN+ | Non-inverting input (Amp 2) | Independent input for second channel; enables dual-sensor monitoring (e.g., temperature + voltage) on one IC. |
| 2IN– | Inverting input (Amp 2) | Matches 1IN– electrical behavior; supports matched differential pair configurations across channels. |
| 2OUT | Output (Amp 2) | Electrically isolated output; no crosstalk >120dB at 1kHz, ensuring independent signal paths for multi-channel systems. |
| VCC– | Negative supply / Ground | Reference node for single-supply operation; tied to system ground; supports true rail-to-rail input common-mode range. |
| 3IN– | Inverting input (Amp 3) | Third channel input; identical specs to 1IN–; enables three-phase current sensing or redundant monitoring. |
| 3IN+ | Non-inverting input (Amp 3) | Third channel positive input; maintains same offset and bias current specs as other inputs. |
| 3OUT | Output (Amp 3) | Third independent output; rated for same load drive and thermal performance as 1OUT/2OUT. |
| 4IN– | Inverting input (Amp 4) | Fourth channel inverting input; completes quad configuration for full analog front-end integration. |
| 4IN+ | Non-inverting input (Amp 4) | Fourth channel positive input; enables simultaneous processing of four analog signals with matched DC accuracy. |
| 4OUT | Output (Amp 4) | Final output; supports same settling time (4µs to 0.1%) and overload recovery (10µs) as other channels. |
Key Features
| Feature | Design Value |
|---|---|
| Drop-in replacement for LM2902 | Pin-compatible and functionally identical to legacy LM2902, enabling immediate BOM upgrade without layout change. |
| Integrated EMI/RF filter | On-die filtering suppresses >100MHz RF interference, eliminating need for external ferrite beads in noisy motor-drive environments. |
| 2kV HBM ESD rating | Withstands electrostatic discharge events up to 2kV human-body model, reducing field failure risk during handling and assembly. |
| Rail-to-rail input common-mode | Accepts input signals from V– to (V+) – 2V, enabling direct connection to ground-referenced shunts and thermistors. |
| Low quiescent current | 240µA per amplifier at 5V supply allows four-channel operation within 1mA total, extending battery life in portable diagnostics. |
Applications
| Industrial Power Supply Monitoring | AC Inverter Feedback Control |
|---|---|
Use Scenario: Real-time monitoring of +12V and +24V rails in server PSU modules using resistor-divider networks and op-amp buffers feeding ADCs. IC Role / Device Role / Timing Role: Quad op-amp provides four independent buffered voltage sense channels with matched gain and offset for accurate multi-rail telemetry. Use Value: ±3mV offset ensures <0.1% full-scale error in 12-bit ADC measurements across –40°C to +85°C ambient. | Use Scenario: Closed-loop current regulation in 3-phase motor drives, where three shunt-resistor signals are conditioned before feeding DSP current controllers. IC Role / Device Role / Timing Role: Three channels perform low-noise, high-CMRR amplification of bidirectional shunt voltages; fourth channel buffers reference voltage. Use Value: 1.2MHz GBW supports 20kHz PWM switching harmonics suppression while maintaining phase margin >56°. |
| HVAC System Sensor Interface | Uninterruptible Power Supply (UPS) Battery Management |
Use Scenario: Signal conditioning for NTC thermistors, pressure transducers, and humidity sensors in residential and commercial air handlers. IC Role / Device Role / Timing Role: Amplifies microvolt-level sensor outputs, rejects common-mode noise from shared 24V HVAC bus, and drives SAR ADC inputs. Use Value: Rail-to-rail input enables direct interface with grounded thermistors; 70dB CMRR rejects 50/60Hz line noise in duct-mounted enclosures. | Use Scenario: Cell voltage monitoring and balancing control in 48V lithium-ion battery packs for datacenter UPS systems. IC Role / Device Role / Timing Role: Four amplifiers condition individual cell voltages (0–4.2V), compare against thresholds, and generate enable signals for passive balancing FETs. Use Value: –40°C to +125°C rating ensures reliable operation inside sealed battery cabinets; 240µA/amp minimizes self-heating during continuous monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2902DR | Same electrical specs, but in SOIC-14 (D) package (8.65mm × 6mm); higher RθJA (99.3°C/W) vs. TSSOP's 124.7°C/W. | Preferred for through-hole prototyping or legacy PCBs with SOIC footprints; less suitable for space-constrained motor-control boards. | Select LM2902DR only when SOIC layout compatibility is mandatory; otherwise LM2902PWRG3 offers superior thermal performance in dense layouts. |
| LM2902BQDR | B-version with ±2mV max offset (vs. ±3mV), 2kV HBM/1.5kV CDM ESD, and enhanced EMI rejection; identical PW package. | Required for high-precision sensor nodes (e.g., medical-grade HVAC) or ultra-noisy factory-floor inverters where sub-2mV offset is specified. | Choose LM2902BQDR when offset drift or RF immunity exceeds baseline requirements; LM2902PWRG3 remains optimal for cost-driven industrial controls. |
Compared with LM2902DR and LM2902BQDR, the LM2902PWRG3 delivers the best balance of legacy compatibility, thermal efficiency in compact layouts, and production-ready robustness-making it the default choice for new designs targeting industrial temperature grade without premium offset or ESD requirements.
Availability
LM2902PWRG3 is available at Aetrix Electronics and suitable for industrial power supply monitoring, AC inverter feedback control, and HVAC sensor interface applications requiring stable component supply and long-term manufacturing continuity.
Supply support for LM2902PWRG3 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 specializing in analog and embedded processing technologies, with decades of experience in high-reliability op-amp design and industrial-grade qualification.
The LM2902 product line delivers cost-optimized, quad general-purpose op-amps engineered for single-supply industrial systems where ground-referenced inputs, wide voltage range, and proven reliability are essential.
FAQ
What is the maximum operating temperature range for LM2902PWRG3?
The LM2902PWRG3 is specified for operation from –40°C to +125°C, making it suitable for under-hood automotive subsystems, industrial motor drives, and outdoor HVAC equipment where ambient temperatures exceed standard commercial grade limits. This rating is confirmed in Section 6.3 of the official TI datasheet SLOS066AE, and applies across the full 3V–36V supply range.
Does LM2902PWRG3 support rail-to-rail input operation?
Yes, the LM2902PWRG3 supports rail-to-rail input common-mode voltage range, specifically from V– (negative supply or ground) up to (V+) – 2V at full temperature range. This allows direct interfacing with ground-referenced sensors like shunt resistors and NTC thermistors without external level-shifting circuitry, a key feature distinguishing it from earlier LM2902 variants.
What is the typical quiescent current per amplifier in LM2902PWRG3?
The LM2902PWRG3 draws 240µA per amplifier at 5V supply and –40°C to +125°C, with a maximum of 300µA under those conditions. At 36V supply, quiescent current rises to 750µA maximum. These values are measured per amplifier and scale linearly across all four channels, enabling precise power budgeting in low-power industrial systems.
Is LM2902PWRG3 pin-compatible with older LM2902 variants?
Yes, LM2902PWRG3 is fully pin-compatible with all standard LM2902 variants in the TSSOP-14 (PW) package, including LM2902PW and LM2902QPWR. Its pinout matches Figure 5-1 and Table 5-1 in the TI datasheet, and it functions as a drop-in replacement without requiring PCB modifications or firmware changes.
What packaging and compliance information applies to LM2902PWRG3?
LM2902PWRG3 is supplied in a 14-pin TSSOP (PW) package measuring 5mm × 6.4mm with 0.65mm lead pitch. It is RoHS-compliant, halogen-free, and moisture sensitivity level (MSL) 2a per JEDEC J-STD-020. The "G3" suffix denotes TI's green (lead-free) packaging standard, verified in TI's official packaging documentation for orderable part LM2902PWRG3.
LM2902PWRG3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 nA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 1.4mA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 26 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LM2902PWRG3 FAQ
1.How can I place an order for LM2902PWRG3 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2902PWRG3 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 LM2902PWRG3 reliable?
The price and inventory of LM2902PWRG3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2902PWRG3 is usually 5 days.
3.What payment methods are accepted for LM2902PWRG3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2902PWRG3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2902PWRG3?
LM2902PWRG3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2902PWRG3 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 LM2902PWRG3?
For technical support, including LM2902PWRG3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2902PWRG3 requirements.
6.How does Aetrix verify that LM2902PWRG3 is sourced from the original manufacturer or authorized distributors?
All LM2902PWRG3 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 LM2902PWRG3 meets industry standards.
7.What is the process for return or replacement of LM2902PWRG3?
All LM2902PWRG3 units undergo pre-shipment inspection (PSI). If there is an issue with LM2902PWRG3, 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 LM2902PWRG3 part is unused and in its original packaging.
Return procedure for LM2902PWRG3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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