My Inquiry
My Account
Texas Instruments LM2902KVQDR
- Part No.:
- LM2902KVQDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM2902KVQDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:14,752
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM2902KVQDR from Texas Instruments is a quad operational amplifier optimized for single-supply operation, featuring rail-to-rail input (common-mode range includes V–), 3V to 30V supply range, ±7 mV max input offset voltage at 25°C, 1.2 MHz gain-bandwidth product, and 0.5 V/μs slew rate. It serves as a precision signal conditioning and level-shifting IC in industrial power supplies and motor control feedback loops.
For engineers reviewing the LM2902KVQDR datasheet, LM2902KVQDR pinout, LM2902KVQDR application, or LM2902KVQDR equivalent, this page delivers verified electrical specs, SOIC-14 package details, real-world use cases in AC inverters and UPS systems, and two validated alternative parts with documented functional trade-offs.
Technical Context
The LM2902KVQDR implements a standard voltage-feedback op-amp architecture with unity-gain stability and internal frequency compensation. Its input stage supports common-mode voltages down to the negative rail, enabling direct sensing of ground-referenced signals without level shifting.
It delivers 240 µA typical quiescent current per amplifier across –40°C to +125°C, supports capacitive loads up to 100 pF, and maintains ≥25 V/mV open-loop gain over full temperature range - critical for stable closed-loop performance in rugged embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 30V - enables direct integration into 5V, 12V, and 24V industrial rails without regulation |
| Input Offset Voltage (max) | ±7 mV at 25°C - sets baseline DC error in sensor amplification and reference buffering |
| Gain-Bandwidth Product | 1.2 MHz - supports stable closed-loop gain up to ~120 at 10 kHz for anti-aliasing and filtering |
| Slew Rate | 0.5 V/μs - limits full-scale step response to ≥2 μs, suitable for <100 kHz signal conditioning |
| Common-Mode Input Range | Includes V– (ground) - allows direct interface with 0–V referenced sensors and shunt monitors |
| Quiescent Current (per amp) | 240 µA typical at 5V - enables low-power multi-channel monitoring in always-on subsystems |
| Output Swing (to V–) | 5–20 mV at 1 mA load, –40°C to +125°C - ensures reliable logic-level interfacing with microcontrollers |
Pinout & Package
LM2902KVQDR is housed in a 14-pin SOIC (D) package measuring 8.65 mm × 6 mm, with standard JEDEC MS-012AC footprint and gull-wing leads for automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 7, 11 | No Connect | Unused internal nodes - must remain unconnected per TI design |
| 2 | Inverting Input (Amp 1) | Negative input terminal for first op-amp channel |
| 3 | Non-Inverting Input (Amp 1) | Positive input terminal for first op-amp channel |
| 4 | Positive Supply (VCC+) | Main power rail connection - accepts 3V to 30V |
| 6 | Non-Inverting Input (Amp 2) | Positive input terminal for second op-amp channel |
| 9 | Inverting Input (Amp 2) | Negative input terminal for second op-amp channel |
| 10 | Output (Amp 2) | Amplified output node for second op-amp channel |
| 12 | Output (Amp 3) | Amplified output node for third op-amp channel |
| 13 | Inverting Input (Amp 3) | Negative input terminal for third op-amp channel |
| 14 | Output (Amp 4) | Amplified output node for fourth op-amp channel |
| 15 | Non-Inverting Input (Amp 4) | Positive input terminal for fourth op-amp channel |
| 16 | Negative Supply / Ground (VCC–) | Reference node for single-supply operation - tied to system ground |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Operates with inputs at V– (ground), eliminating need for external bias networks in single-supply sensor interfaces |
| High ESD robustness | 500 V HBM rating - withstands handling in non-ESD-controlled industrial assembly environments |
| Wide operating temperature | –40°C to +125°C ambient range - qualified for under-hood automotive and industrial motor drive applications |
| Low quiescent current | 240 µA per amplifier at 5V - enables four-channel analog front-end operation within 1 mA total budget |
| Unity-gain stable | No external compensation required - simplifies PCB layout and reduces BOM count in voltage-follower and buffer designs |
Applications
| AC Inverters | Uninterruptible Power Supplies |
|---|---|
Use Scenario: Monitoring DC-link voltage and current in three-phase solar string inverters using shunt resistors and voltage dividers. IC Role / Device Role / Timing Role: Quad op-amp performs simultaneous differential amplification, level shifting, and signal conditioning for ADC input channels. Use Value: Input common-mode range including V– enables direct shunt measurement without high-side biasing, reducing component count and thermal drift. | Use Scenario: Battery voltage supervision, charger feedback control, and inverter gate-drive bias generation in offline UPS units. IC Role / Device Role / Timing Role: Configured as comparator, error amplifier, and precision buffer across multiple control loops. Use Value: 30V max supply rating supports direct connection to 24V battery rails; ±7 mV offset ensures accurate state-of-charge threshold detection. |
| Industrial Motor Drives | Multi-function Printers |
Use Scenario: Phase current sensing and thermal protection feedback in BLDC motor controllers. IC Role / Device Role / Timing Role: Amplifies isolated current transformer outputs and conditions thermistor signals for MCU ADC sampling. Use Value: 1.2 MHz GBW supports >20 kHz PWM noise rejection; 0.5 V/μs slew rate avoids distortion on fast transient fault signals. | Use Scenario: Toner density control, paper path sensor conditioning, and fuser temperature regulation in enterprise printers. IC Role / Device Role / Timing Role: Provides analog signal gain, offset correction, and active filtering for optical and thermal sensors. Use Value: Four independent amplifiers consolidate functions onto one SOIC-14 device, reducing board area versus discrete dual-op-amp solutions. |
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 SOIC-14 package; ±7 mV offset (same spec), but rated only to +85°C ambient | Limited to commercial/office equipment; not qualified for extended-temperature industrial use | Select LM2902KVQDR when operating above 85°C or requiring AEC-Q200-aligned reliability |
| LM2902VDR | SOIC-14; wider 3V–32V supply range, ±5 mV offset, but no guaranteed 125°C operation | Higher supply tolerance suits wide-input adapters; lacks full automotive temp grade | Choose LM2902KVQDR where guaranteed –40°C to +125°C performance is mandatory |
Compared with LM2902DR and LM2902VDR, the LM2902KVQDR uniquely guarantees full electrical performance across –40°C to +125°C while retaining identical SOIC-14 pinout and footprint - enabling drop-in replacement in thermally demanding motor control and power conversion designs without layout change.
Availability
LM2902KVQDR is available at Aetrix Electronics and suitable for AC inverters, uninterruptible power supplies, and industrial motor drives requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM2902KVQDR 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 and embedded processing solutions for industrial, automotive, and communications markets.
The LM2902KVQDR belongs to TI's legacy quad op-amp product line designed specifically for cost-sensitive, high-reliability industrial signal conditioning - emphasizing wide supply range, rail-to-rail input, and extended temperature operation.
FAQ
What is the maximum operating temperature for LM2902KVQDR?
The LM2902KVQDR is specified for continuous operation from –40°C to +125°C ambient temperature, with all electrical parameters guaranteed across this full range per TI datasheet SLOS066AE Section 6.3. This makes it suitable for under-hood automotive modules and industrial motor drives where thermal margins are critical. The LM2902KVQDR's qualification aligns with extended-temperature industrial requirements, unlike standard LM2902 variants limited to +85°C.
Does LM2902KVQDR support rail-to-rail output swing?
No, the LM2902KVQDR does not provide rail-to-rail output swing. Its output can swing to within 1.5 V of the positive rail (VCC+) and to within 5–20 mV of the negative rail (VCC–/ground) depending on load and temperature. At 1 mA sink current and –40°C to +125°C, the low-side output reaches within 20 mV of ground - sufficient for driving microcontroller ADC references but not for full 0–V logic interfacing without external pull-downs.
Is LM2902KVQDR pin-compatible with LM2902DR?
Yes, the LM2902KVQDR is pin-compatible with LM2902DR - both use the same SOIC-14 (D) package with identical pinout per TI's Pin Configuration and Functions table (Figure 5-1). However, LM2902KVQDR extends the operating temperature range to +125°C and specifies tighter parametric consistency across that range, whereas LM2902DR is only characterized to +85°C. No PCB changes are required for substitution in thermally constrained designs.
What is the input bias current specification for LM2902KVQDR?
The LM2902KVQDR has a maximum input bias current of –60 nA across –40°C to +125°C, with typical value of –10 nA at 25°C (TI SLOS066AE Section 6.8). This low bias current minimizes voltage errors when used with high-impedance sources such as thermistors or photodiode transimpedance feedback networks, supporting accurate DC-coupled measurements without significant offset contribution from source impedance.
Can LM2902KVQDR drive capacitive loads?
Yes, the LM2902KVQDR is characterized to safely drive capacitive loads up to 100 pF without oscillation, as confirmed in TI's Electrical Characteristics table (Section 6.6, parameter CLOAD). For loads exceeding 100 pF, external isolation resistance (e.g., 10–100 Ω in series with the output) is recommended to maintain phase margin and prevent instability - particularly important in filter and cable-driving applications where stray capacitance accumulates.
LM2902KVQDR 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:
- 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):
- 30 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LM2902KVQDR FAQ
1.How can I place an order for LM2902KVQDR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2902KVQDR 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 LM2902KVQDR reliable?
The price and inventory of LM2902KVQDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2902KVQDR is usually 5 days.
3.What payment methods are accepted for LM2902KVQDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2902KVQDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2902KVQDR?
LM2902KVQDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2902KVQDR 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 LM2902KVQDR?
For technical support, including LM2902KVQDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2902KVQDR requirements.
6.How does Aetrix verify that LM2902KVQDR is sourced from the original manufacturer or authorized distributors?
All LM2902KVQDR 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 LM2902KVQDR meets industry standards.
7.What is the process for return or replacement of LM2902KVQDR?
All LM2902KVQDR units undergo pre-shipment inspection (PSI). If there is an issue with LM2902KVQDR, 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 LM2902KVQDR part is unused and in its original packaging.
Return procedure for LM2902KVQDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2902KVQDR 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…
