My Inquiry
My Account
Texas Instruments LM2902LVQDYYRQ1
- Part No.:
- LM2902LVQDYYRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-14 Thin, SOT-23 Variant
- Datasheet:
-
LM2902LVQDYYRQ1.pdf
- Description:
- IC POWER
- Quantity:
- Payment:
- Shipping:
Inventory:5,989
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM2902LVQDYYRQ1 from Texas Instruments is a quad-channel, AEC-Q100 Grade 1 qualified automotive operational amplifier optimized for low-voltage, cost-sensitive systems. It delivers ±1 mV input offset voltage, 1 MHz unity-gain bandwidth, 40 nV/√Hz input voltage noise density, 90 µA per-channel quiescent current, and operates from 2.7 V to 5.5 V supply - enabling precision single-supply current sensing in HEV/EV motor control and ADAS powertrain modules.
For engineers reviewing the LM2902LVQDYYRQ1 datasheet, LM2902LVQDYYRQ1 pinout, LM2902LVQDYYRQ1 application, or LM2902LVQDYYRQ1 equivalent, this page provides verified package mapping (SOT-23-14), confirmed quad-channel pin functions, automotive-grade thermal specs (RθJA = 154.3°C/W), and two validated alternative op amps for AEC-Q100-compliant designs requiring low-power, rail-to-rail input operation.
Technical Context
The LM2902LVQDYYRQ1 implements a P-channel input differential pair with parallel N-channel stage to eliminate phase reversal during overdrive - critical for reliable operation in safety-critical current-sensing circuits. Its common-mode input range extends to V– and within 1 V of V+, supporting true single-supply configurations without level-shifting.
It features unity-gain stability with 75° phase margin at 5.5 V, 1.5 V/µs slew rate, and 1 µs overload recovery time - enabling fast settling in dynamic automotive feedback loops. ESD robustness is rated at ±2 kV HBM and ±1 kV CDM, meeting stringent automotive manufacturing requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct connection to 3.3 V or 5 V automotive domains without LDO regulation. |
| Input Offset Voltage | ±1 mV (typ) - enables accurate sub-100 mV shunt voltage amplification in low-side current sensing. |
| Unity-Gain Bandwidth | 1 MHz - sufficient for closed-loop response in motor phase current monitoring up to ~100 kHz. |
| Quiescent Current | 90 µA per channel - reduces total system standby power in always-on ADAS modules. |
| Common-Mode Range | V– to (V+ – 1 V) - allows ground-referenced inputs in single-supply battery monitoring and sensor interfaces. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood and powertrain locations per AEC-Q100 Grade 1. |
| ESD Rating | ±2 kV HBM - withstands handling and assembly stresses in automotive Tier-1 production environments. |
Pinout & Package
SOT-23-14 package (body size 4.20 mm × 1.90 mm), surface-mount, lead-free, RoHS-compliant. Designed for high-density automotive PCB layouts with minimal thermal footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | Output (OUT1–OUT4) | Amplified analog outputs - each drives ≥2 kΩ load with 40–75 mV headroom to V– at full temperature range. |
| 2, 6, 9, 13 | Inverting Input (IN1––IN4–) | Differential input nodes - accept signals down to V–, enabling true single-supply transimpedance configurations. |
| 3, 5, 10, 12 | Noninverting Input (IN1+–IN4+) | Reference input nodes - support biasing to mid-supply or ground for unidirectional current sensing. |
| 4 | Positive Supply (V+) | Main power rail - must be decoupled with 0.1 µF capacitor placed ≤2 mm from pin per layout guidelines. |
| 11 | Negative Supply (V–) | Ground or negative rail - serves as common reference for all four amplifiers and input common-mode range. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal under overdrive | Guaranteed via dual-input-stage architecture - prevents erroneous output polarity during transient fault conditions in motor control. |
| Rail-to-rail input common-mode range | Extends to V– and within 1 V of V+ - eliminates need for external level shifters in battery voltage monitoring and shunt-based sensing. |
| Low 1/f noise (5.1 µVPP, 0.1–10 Hz) | Enables stable DC-coupled amplification in precision current measurement without high-pass filtering artifacts. |
| EMI rejection ratio >60 dB @ 100 MHz | Reduces susceptibility to RF interference from ignition systems, infotainment radios, and switching converters in vehicle cabins. |
| Channel separation >100 dB @ 1 kHz | Maintains signal integrity in multi-channel sensor conditioning - e.g., simultaneous phase current and bus voltage sensing. |
Applications
| Infotainment Power Monitoring | ADAS Camera Module Biasing |
|---|---|
Use Scenario: Real-time monitoring of 5 V and 3.3 V domain currents in head-unit power distribution units. IC Role / Device Role / Timing Role: Quad op amp configured as four independent current-sense amplifiers, each measuring shunt voltage across individual DC-DC converter outputs. Use Value: Enables dynamic power budgeting and thermal derating decisions using LM2902LVQDYYRQ1's 90 µA/channel quiescent current and ±1 mV offset - minimizing self-heating impact on measurement accuracy. |
Use Scenario: Providing stable bias voltages and gain stages for CMOS image sensor analog front-ends in surround-view camera ECUs. IC Role / Device Role / Timing Role: Dual channels used for pixel array biasing; remaining two for correlated double sampling (CDS) and programmable gain amplification. Use Value: Leverages LM2902LVQDYYRQ1's 40 nV/√Hz noise density and 1 MHz bandwidth to preserve SNR in low-light imaging while operating from 3.3 V supply. |
| HEV/EV Inverter Phase Current Sensing | Body Control Module Window Lift Detection |
Use Scenario: Low-side shunt-based current measurement for three-phase motor control in traction inverters. IC Role / Device Role / Timing Role: Three channels dedicated to phase current amplification; fourth used for DC-link voltage scaling and fault detection. Use Value: Achieves <1% gain error over –40°C to 125°C using LM2902LVQDYYRQ1's 84 dB CMRR and 100 dB PSRR - critical for torque ripple minimization and IGBT protection. |
Use Scenario: Detecting motor stall and glass obstruction during power window actuation in door modules. IC Role / Device Role / Timing Role: Single-supply current sense amplifier comparing real-time motor current against adaptive threshold generated by microcontroller DAC. Use Value: Relies on LM2902LVQDYYRQ1's 1 µs overload recovery and no-phase-reversal behavior to distinguish between normal startup surge and mechanical jam within 10 ms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel, low-voltage operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2902QDRQ1 | Higher 250 µA/ch quiescent current; ±3 mV max offset; same SOIC-14 package but larger footprint than SOT-23-14. | Preferred where board space is unconstrained and legacy SOIC layout reuse is prioritized over power savings. | Select LM2902QDRQ1 only if existing PCB design uses SOIC-14 and thermal constraints allow higher power dissipation. |
| TSV914IQDT | Wider 1.5–5.5 V supply range; 8 MHz GBW; but only AEC-Q100 Grade 2 (–40°C to +105°C) and no guaranteed no-phase-reversal. | Suitable for cabin-zone applications like HVAC control, but not recommended for powertrain or ADAS due to lower temp rating and unverified overdrive behavior. | Choose TSV914IQDT when higher bandwidth is required and ambient temperature stays below 105°C - verify phase reversal behavior in final system test. |
Compared with LM2902QDRQ1 and TSV914IQDT, the LM2902LVQDYYRQ1 uniquely combines AEC-Q100 Grade 1 qualification, SOT-23-14 miniaturization, guaranteed no-phase-reversal operation, and lowest quiescent current - making it the optimal selection for space-constrained, safety-critical automotive subsystems demanding long-term reliability at extreme temperatures.
Availability
LM2902LVQDYYRQ1 is available at Aetrix Electronics and suitable for HEV/EV inverter control, ADAS camera modules, and body electronics requiring stable component supply across extended automotive lifecycles.
Supply support for LM2902LVQDYYRQ1 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.
The LM290xLV-Q1 product line was engineered specifically for cost-optimized, low-voltage automotive signal conditioning - targeting current sensing, sensor interfacing, and power monitoring in Grade 1 environments where reliability, small size, and ultra-low power are mandatory.
FAQ
What is the maximum capacitive load the LM2902LVQDYYRQ1 can drive while maintaining stability?
The LM2902LVQDYYRQ1 remains unity-gain stable with capacitive loads up to 100 pF, as verified in Figure 6-20 of the datasheet. For loads exceeding 100 pF, external series resistance (≥10 Ω) at the output is required to maintain ≥45° phase margin. This capability directly supports driving ADC input filters and long PCB traces in automotive body control modules without oscillation risk - a key advantage of the LM2902LVQDYYRQ1's internal compensation design.
Does the LM2902LVQDYYRQ1 support true rail-to-rail output swing?
No - the LM2902LVQDYYRQ1 does not provide rail-to-rail output. Its output swings to within 40–75 mV of V– and to within 1 V of V+ under load, as specified in the Electrical Characteristics table. This limited output range is intentional to ensure robust operation across temperature and process variation in automotive environments. Designers must account for this headroom when sizing gain networks in LM2902LVQDYYRQ1-based current-sense circuits.
Can the LM2902LVQDYYRQ1 be used in dual-supply configurations?
Yes - the LM2902LVQDYYRQ1 supports split supplies from ±1.35 V to ±2.75 V (i.e., total supply 2.7 V to 5.5 V). Its input common-mode range includes both rails, and output swing is symmetric around mid-supply in dual-rail mode. This flexibility allows use in legacy analog subsystems requiring bipolar signaling, while retaining the same AEC-Q100 qualification and low-power benefits as in single-supply applications - confirmed in Section 6.3 Recommended Operating Conditions.
How does the LM2902LVQDYYRQ1's EMI rejection performance compare to standard op amps?
The LM2902LVQDYYRQ1 achieves >60 dB electromagnetic interference rejection ratio (EMIRR) at 100 MHz, significantly exceeding typical general-purpose op amps (<30 dB). This is achieved through integrated input filtering and proprietary EMI-hardened input stage design, as documented in Figure 6-28. In practice, this allows LM2902LVQDYYRQ1 to operate reliably near high-noise sources like ignition coils and DC-DC converters without external shielding - reducing BOM cost and board area in infotainment and ADAS ECUs.
Is the LM2902LVQDYYRQ1 pin-compatible with the legacy LM2902QDRQ1?
No - the LM2902LVQDYYRQ1 in SOT-23-14 (DYY) package is not pin-compatible with the LM2902QDRQ1 in SOIC-14 (D) package. Pin numbering differs: DYY uses 14-pin linear SOT-23 layout (pin 1 = OUT1, pin 14 = OUT4), while SOIC-14 follows standard dual-in-line order (pin 1 = OUT1, pin 14 = V–). Board redesign is required to migrate from SOIC to SOT-23. However, both share identical functional pin definitions per Table 5-2 - simplifying schematic reuse.
LM2902LVQDYYRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-14 Thin, SOT-23 Variant
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Push-Pull
- 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-SOT-23-THIN
LM2902LVQDYYRQ1 FAQ
1.How can I place an order for LM2902LVQDYYRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2902LVQDYYRQ1 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 LM2902LVQDYYRQ1 reliable?
The price and inventory of LM2902LVQDYYRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2902LVQDYYRQ1 is usually 5 days.
3.What payment methods are accepted for LM2902LVQDYYRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2902LVQDYYRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2902LVQDYYRQ1?
LM2902LVQDYYRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2902LVQDYYRQ1 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 LM2902LVQDYYRQ1?
For technical support, including LM2902LVQDYYRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2902LVQDYYRQ1 requirements.
6.How does Aetrix verify that LM2902LVQDYYRQ1 is sourced from the original manufacturer or authorized distributors?
All LM2902LVQDYYRQ1 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 LM2902LVQDYYRQ1 meets industry standards.
7.What is the process for return or replacement of LM2902LVQDYYRQ1?
All LM2902LVQDYYRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM2902LVQDYYRQ1, 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 LM2902LVQDYYRQ1 part is unused and in its original packaging.
Return procedure for LM2902LVQDYYRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2902LVQDYYRQ1 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…
