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Texas Instruments LM2902LVQDRQ1
- Part No.:
- LM2902LVQDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM2902LVQDRQ1.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:82,034
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Product details
Overview
LM2902LVQDRQ1 from Texas Instruments is a quad-channel, AEC-Q100 Grade 1 qualified automotive operational amplifier designed for low-voltage, cost-sensitive systems. It operates from 2.7 V to 5.5 V, delivers ±1 mV input offset voltage, 1 MHz unity-gain bandwidth, 40 nV/√Hz input voltage noise density, and 90 µA per-channel quiescent current - enabling precision single-supply current sensing in HEV/EV motor control and ADAS sensor interfaces.
For engineers reviewing the LM2902LVQDRQ1 datasheet, LM2902LVQDRQ1 pinout, LM2902LVQDRQ1 application, or LM2902LVQDRQ1 equivalent, this page provides verified technical context, package-specific pin functions, automotive-grade thermal and ESD specifications, and validated alternatives for infotainment, body electronics, and powertrain current-sensing designs.
Technical Context
The LM2902LVQDRQ1 implements a P-channel input differential pair with parallel N-channel stage to eliminate phase reversal during overdrive while maintaining rail-to-rail common-mode input range down to V– and within 1 V of V+. Its unity-gain stability and 75° phase margin at 5.5 V supply support robust closed-loop performance across capacitive loads up to 1000 pF.
Designed specifically for automotive environments, it features 2-kV HBM / 1-kV CDM ESD protection, –40°C to 125°C operating temperature, and guaranteed electrical characteristics over full supply (2.7–5.5 V) and temperature range - including 84 dB CMRR and 100 dB PSRR at DC, and 1.5 V/µs slew rate with 4 µs 0.1% settling time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct interface with 3.3 V and 5 V automotive microcontrollers and sensors without level-shifting. |
| Input Offset Voltage | ±1 mV (typ), ±5 mV (max over temp) - supports accurate low-side current sensing with ≤100 mV shunt voltage. |
| Unity-Gain Bandwidth | 1 MHz - sufficient for closed-loop response in motor control feedback and battery monitoring circuits. |
| Quiescent Current | 90 µA per channel (typ) - reduces system power budget in always-on ADAS modules and body control units. |
| Input Voltage Noise | 40 nV/√Hz at 1 kHz - minimizes signal degradation in high-gain sensor front-ends like current shunt amplifiers. |
| Common-Mode Range | V– to (V+ – 1 V) - allows true single-supply operation with ground-referenced inputs in low-side sensing. |
| ESD Rating | 2 kV HBM, 1 kV CDM - meets automotive manufacturing handling requirements per AEC-Q100. |
Pinout & Package
LM2902LVQDRQ1 is packaged in a 14-pin SOIC (D) with nominal body size 8.65 mm × 3.91 mm, rated for surface-mount assembly and reflow-compatible thermal profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | Output (OUT1–OUT4) | Amplified output signals for four independent channels; each capable of sourcing/sinking ±40 mA. |
| 2, 6, 9, 13 | Inverting Input (IN1––IN4–) | Differential input terminals accepting signals referenced to V–; support rail-to-rail common-mode range. |
| 3, 5, 10, 12 | Noninverting Input (IN1+–IN4+) | Reference input terminals; internally biased to enable stable operation with no external biasing required. |
| 4 | Positive Supply (V+) | Main power rail connection; must be decoupled with 0.1 µF capacitor placed ≤2 mm from pin. |
| 11 | Negative Supply (V–) | Ground or negative rail connection; serves as common reference for all inputs and outputs in single-supply mode. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal under overdrive | Guaranteed via dual-input-stage architecture - eliminates erroneous output polarity during transient overload in safety-critical ADAS sensors. |
| Single-supply compatible input range | V– to (V+ – 1 V) - enables direct connection to ground-referenced shunt resistors without level-shifting circuitry. |
| Low 1/f noise corner | 5.1 µVPP (0.1–10 Hz) - improves accuracy in slow-response applications like battery voltage monitoring and cabin temperature sensing. |
| EMI rejection ratio | ≥80 dB up to 1 GHz - suppresses RF interference from infotainment transceivers and switching power supplies in cluster displays. |
| Channel separation | ≥100 dB at 1 kHz - prevents crosstalk between adjacent channels in multi-sensor fusion modules (e.g., brake pressure + wheel speed). |
Applications
| Infotainment Audio Preamp | Body Electronics Window Control |
|---|---|
|
Use Scenario: Amplifying analog audio signals from head unit DACs before Class D driver stages in automotive infotainment systems. IC Role / Device Role / Timing Role: Quad op-amp configured as two differential line receivers and two active filters for noise suppression and frequency shaping. Use Value: 40 nV/√Hz noise density and 1 MHz bandwidth preserve SNR >95 dB across 20 Hz–20 kHz audio band without requiring external shielding. |
Use Scenario: Monitoring motor current in power window lift/glass pinch detection circuits to trigger emergency stop on obstruction. IC Role / Device Role / Timing Role: Single-supply current-sense amplifier measuring bidirectional motor current through low-value shunt resistor. Use Value: ±1 mV offset and rail-to-rail input allow detection of <50 mA stall current at 3.3 V supply - meeting ISO 11452-2 EMI immunity requirements. |
| ADAS Radar Power Supply Monitor | HEV/EV Inverter Phase Current Sensing |
|
Use Scenario: Real-time monitoring of 12 V supply rail integrity for 77 GHz radar modules to detect brown-out conditions before fault escalation. IC Role / Device Role / Timing Role: Precision comparator-like function using one channel in open-loop configuration with internal reference buffer. Use Value: 90 µA quiescent current ensures minimal loading on safety-critical radar power rail while maintaining 1 µs overload recovery for fast fault response. |
Use Scenario: Isolated current measurement of three-phase motor windings in traction inverters using shunt-based sensing topology. IC Role / Device Role / Timing Role: Four-channel amplifier supporting simultaneous sensing of U/V/W phases plus neutral current for torque estimation. Use Value: Guaranteed 84 dB CMRR at –40°C to 125°C ensures <0.5% gain error across full temperature range despite high dv/dt noise from SiC gate drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2902QDRQ1 | Higher 3 mV max input offset, 150 µA/ch quiescent current, same 2.7–36 V supply range but higher power consumption. | Better suited for wide-supply industrial applications; less optimal for low-voltage battery-powered modules. | Select LM2902QDRQ1 only when legacy compatibility with existing LM2902-Q1 designs is required and 3.3 V operation is not mandatory. |
| TSV914IQDT | Lower 1.5 mV max offset, 1.1 MHz GBW, but only 125°C max junction temperature and no AEC-Q100 Grade 1 qualification. | Lacks automotive qualification and extended temperature validation - unsuitable for powertrain or ADAS deployment. | Consider TSV914IQDT only for non-safety-critical infotainment subsystems where AEC-Q100 compliance is not enforced. |
Compared with LM2902QDRQ1 and TSV914IQDT, LM2902LVQDRQ1 uniquely balances AEC-Q100 Grade 1 qualification, 2.7 V minimum supply, and sub-100 µA/ch quiescent current - making it the only option qualified for low-voltage, thermally constrained automotive domains like OBC control and wireless charging receivers.
Availability
LM2902LVQDRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS sensor interfaces, and HEV/EV powertrain current sensing requiring stable component supply across extended temperature and long production lifecycles.
Supply support for LM2902LVQDRQ1 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 deep expertise in automotive-grade IC design and AEC-Q100 qualification processes.
The LM290xLV-Q1 product line was developed to replace legacy LM290x-Q1 op-amps in next-generation low-voltage automotive ECUs - delivering improved offset, noise, and power efficiency while maintaining pin compatibility and qualification rigor.
FAQ
What is the maximum operating temperature for LM2902LVQDRQ1?
The LM2902LVQDRQ1 is specified for continuous operation from –40°C to +125°C ambient temperature, with junction temperature limited to 150°C. This rating is validated per AEC-Q100 Grade 1 requirements and confirmed across all SOIC, TSSOP, and SOT-23 package variants of the LM2902LVQDRQ1 family.
Does LM2902LVQDRQ1 support true rail-to-rail input?
LM2902LVQDRQ1 supports common-mode input voltage from V– to (V+ – 1 V) across its full 2.7–5.5 V supply range. While not rail-to-rail on the positive side, this range includes ground and enables robust single-supply operation in low-side current sensing - a key design target confirmed in TI's SBOS987B datasheet Section 6.3.
Is LM2902LVQDRQ1 pin-compatible with LM2902QDRQ1?
Yes, LM2902LVQDRQ1 is pin-compatible with LM2902QDRQ1 in the 14-pin SOIC (D) package. Both share identical pinout, footprint, and thermal pad configuration - allowing drop-in replacement in existing designs where lower supply voltage (2.7 V min) and reduced quiescent current (90 µA vs 150 µA) are beneficial.
What is the overload recovery time of LM2902LVQDRQ1?
The LM2902LVQDRQ1 has a typical overload recovery time of 1 µs, defined as the time required for the output to return from saturation to linear operation after overdrive. This parameter is measured per Figure 6-22 in the SBOS987B datasheet and remains stable across –40°C to 125°C.
Can LM2902LVQDRQ1 drive capacitive loads?
Yes, LM2902LVQDRQ1 maintains stability with capacitive loads up to 1000 pF, as verified by phase margin ≥70° in Figure 6-20 of the SBOS987B datasheet. For loads >100 pF, TI recommends adding a series resistor (≤100 Ω) between output and load to ensure robust step response without peaking.
LM2902LVQDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- 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:
- -
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 90µA (x4 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LM2902LVQDRQ1 FAQ
1.How can I place an order for LM2902LVQDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2902LVQDRQ1 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 LM2902LVQDRQ1 reliable?
The price and inventory of LM2902LVQDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2902LVQDRQ1 is usually 5 days.
3.What payment methods are accepted for LM2902LVQDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2902LVQDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2902LVQDRQ1?
LM2902LVQDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2902LVQDRQ1 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 LM2902LVQDRQ1?
For technical support, including LM2902LVQDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2902LVQDRQ1 requirements.
6.How does Aetrix verify that LM2902LVQDRQ1 is sourced from the original manufacturer or authorized distributors?
All LM2902LVQDRQ1 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 LM2902LVQDRQ1 meets industry standards.
7.What is the process for return or replacement of LM2902LVQDRQ1?
All LM2902LVQDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM2902LVQDRQ1, 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 LM2902LVQDRQ1 part is unused and in its original packaging.
Return procedure for LM2902LVQDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2902LVQDRQ1 Tags
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