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Texas Instruments LM2902MT/NOPB
- Part No.:
- LM2902MT/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2902MT/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,035
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Product details
Overview
LM2902MT/NOPB from Texas Instruments is a low-power, quad operational amplifier optimized for single-supply operation from 3 V to 26 V, featuring 1 MHz unity-gain bandwidth, 100 dB DC voltage gain, 700 μA supply current per amplifier, and rail-to-rail input common-mode range including ground - widely used in industrial sensor signal conditioning and battery-powered analog front-ends.
For engineers reviewing the LM2902MT/NOPB datasheet, LM2902MT/NOPB pinout, LM2902MT/NOPB application, or LM2902MT/NOPB equivalent, this page delivers verified specifications, package mapping (SOIC-14), functional pin roles, real-world use cases, and two validated alternative parts with documented technical and application differences.
Technical Context
The LM2902MT/NOPB implements a PNP-input stage enabling true ground-sensing capability and output swing down to 0 V (with load-dependent headroom), while maintaining temperature-compensated input bias current (45 nA typ) and offset voltage (2 mV typ). Its internal frequency compensation ensures stable unity-gain operation without external components.
It supports dual- or single-supply configurations, with differential input voltage tolerance exceeding supply rails and input common-mode range spanning 0 V to V+ − 1.5 V at 25°C. The output stage delivers ±40 mA short-circuit current (to ground) and sustains large-signal voltage gain ≥25 V/mV at 15 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 26 V single supply (or ±1.5 V to ±13 V dual); enables direct interface with 3.3 V/5 V logic and eliminates need for negative rail. |
| Unity-Gain Bandwidth | 1 MHz; supports stable amplification of audio-band and low-speed control signals without external compensation. |
| Input Offset Voltage | 2 mV (typ) at 25°C; ensures ≤20 mV output error in unity-gain buffer at 10 V output, critical for precision DC gain blocks. |
| Supply Current per Amplifier | 700 μA (typ) at 5 V; allows four op amps to operate on <3 mA total, suitable for always-on sensor nodes. |
| Input Common-Mode Range | 0 V to V+ − 1.5 V; permits direct connection of ground-referenced transducers (e.g., thermocouples, strain gauges) without level-shifting. |
| Output Voltage Swing | 0 V to V+ − 1.5 V (RL = 2 kΩ); delivers full-scale analog output into standard ADC reference ranges when powered from same supply. |
| Large-Signal Voltage Gain | 25 V/mV (min) at 15 V; provides ≥250× open-loop gain for accurate closed-loop gain setting in DC instrumentation. |
Pinout & Package
LM2902MT/NOPB is housed in a 14-pin SOIC package (8.65 mm × 3.91 mm body size), surface-mount compatible with standard reflow profiles and IPC-7351B land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | Output (Ch1–Ch4) | Class-AB output stage capable of sourcing/sinking ≥40 mA; swings to 0 V (ground) and up to V+ − 1.5 V. |
| 2, 6, 9, 13 | Inverting Input (Ch1–Ch4) | PNP-diff-pair input; accepts voltages from 0 V to V+ − 1.5 V; clamped at −0.3 V below ground. |
| 3, 5, 10, 12 | Noninverting Input (Ch1–Ch4) | Matches inverting input specs; enables true ground-referenced differential sensing and summing. |
| 4 | Positive Supply (V+) | Single-supply rail input; supports 3–26 V; supplies all four amplifiers internally. |
| 11 | Ground / Negative Supply | Reference node for all inputs/outputs; must be low-impedance to minimize noise coupling between channels. |
Key Features
| Feature | Design Value |
|---|---|
| Internally compensated unity-gain stability | Eliminates external compensation components, reducing BOM count and layout area in gain blocks and buffers. |
| Input common-mode range includes ground | Enables direct interfacing with 0 V–referenced sensors (e.g., RTDs, bridge transducers) without external bias networks. |
| Low 700 μA supply current per amplifier | Supports four-channel analog signal processing in energy-constrained systems (e.g., portable gas detectors, battery monitors). |
| Temperature-compensated input bias current | Maintains 45 nA (typ) across −40°C to +85°C operating range, minimizing drift-induced errors in high-impedance sensor interfaces. |
| Rail-to-rail input and near-rail output swing | Maximizes dynamic range when operating from 3.3 V or 5 V supplies, improving SNR in ADC driver applications. |
Applications
| Industrial Sensor Signal Conditioning | Automotive Cabin Climate Control |
|---|---|
Use Scenario: Amplifying low-level mV outputs from thermistors, pressure bridges, or current-sense shunts in PLC I/O modules. IC Role / Device Role / Timing Role: Quad DC gain block with matched channel characteristics; each amplifier configured as non-inverting x10–x100 stage. Use Value: Single SOIC-14 replaces four discrete op amps, reducing PCB area by >60% and eliminating inter-channel gain mismatch. | Use Scenario: Linear regulation and feedback control of HVAC blower motors and blend-air actuators using potentiometer feedback. IC Role / Device Role / Timing Role: Four independent error amplifiers driving PWM comparators and motor drivers; operates from 5 V vehicle bus. Use Value: Ground-sensing inputs directly accept 0–5 V pot wiper signals; output swing to 0 V ensures full PWM duty cycle control. |
| Portable Medical Vital Signs Monitor | Smart Building Occupancy Sensor Interface |
Use Scenario: Biopotential signal amplification (ECG, EMG) with high common-mode rejection and low power consumption. IC Role / Device Role / Timing Role: Instrumentation front-end: Ch1–Ch2 as differential input stage, Ch3–Ch4 as active filters and level shifters. Use Value: 700 μA per amp enables 4-channel analog chain on coin-cell battery for >1 week continuous operation. | Use Scenario: Signal conditioning for passive infrared (PIR) motion detectors and ambient light sensors in LED lighting controls. IC Role / Device Role / Timing Role: Transducer amplifier (Ch1), comparator hysteresis generator (Ch2), LED driver buffer (Ch3), and reference buffer (Ch4). Use Value: Single-supply operation from 3.3 V MCU rail eliminates need for auxiliary voltage regulators in compact sensor nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM324DT | Same SOIC-14 package; wider temp range (0°C to 70°C vs. −40°C to 85°C); higher input offset voltage (7 mV max vs. 7 mV max at 25°C, but LM2902MT/NOPB specified over full range). | Not qualified for automotive or extended industrial environments requiring −40°C startup. | Select LM324DT only for commercial-grade cost-sensitive designs where extended temperature operation is unnecessary. |
| TLV2464IDR | Rail-to-rail input/output; lower supply current (220 μA/amp); higher GBW (6.4 MHz); but narrower supply range (2.7–6 V) and no ground-sensing guarantee beyond 0 V. | Superior for low-voltage, high-speed apps (e.g., audio preamps), but incompatible with 12 V or 24 V industrial rails. | Choose TLV2464IDR when operating ≤5.5 V and RRO performance is mandatory; avoid for 12 V+ sensor interfaces. |
Compared with LM324DT and TLV2464IDR, LM2902MT/NOPB uniquely balances wide supply range (3–26 V), guaranteed ground-sensing inputs, −40°C to +85°C qualification, and ultra-low quiescent current - making it the optimal choice for ruggedized, single-supply industrial analog signal chains.
Availability
LM2902MT/NOPB is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive cabin electronics, and portable medical devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM2902MT/NOPB 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 heritage in precision op amp design and high-volume manufacturing reliability.
LM2902MT/NOPB belongs to TI's legacy LMx24-N family, engineered specifically for robust, low-cost, single-supply analog signal conditioning in cost-sensitive industrial and automotive applications.
FAQ
What is the maximum supply voltage for LM2902MT/NOPB?
The absolute maximum supply voltage for LM2902MT/NOPB is 32 V, but its recommended operating range is 3 V to 26 V for single-supply use. Exceeding 26 V may degrade parametric guarantees such as input offset drift and common-mode rejection ratio, as specified in Section 6.3 of the official datasheet. Always observe thermal limits: at 26 V and full output load, ensure junction temperature remains ≤85°C.
Does LM2902MT/NOPB support true rail-to-rail input?
LM2902MT/NOPB supports input common-mode voltage from 0 V to V+ − 1.5 V - meaning it accepts signals referenced to ground (true ground-sensing), but does not reach the positive rail. This differs from rail-to-rail input op amps. The 0 V lower limit enables direct connection of grounded transducers without biasing, a key advantage over older generation op amps like the LM324.
Can LM2902MT/NOPB drive capacitive loads?
LM2902MT/NOPB can safely drive ≤50 pF capacitive loads in unity-gain configuration without oscillation. For larger loads (e.g., ADC input capacitance + PCB trace), add a series isolation resistor (10–100 Ω) between the output and load to preserve phase margin. Avoid direct connection to >100 pF without compensation, as instability may occur due to reduced loop gain at high frequencies.
What is the operating temperature range of LM2902MT/NOPB?
LM2902MT/NOPB is rated for operation from −40°C to +85°C ambient temperature, qualifying it for automotive cabin, industrial control, and outdoor equipment applications. This exceeds the LM324-N (0°C to 70°C) and matches the LM224-N (−25°C to 85°C), making LM2902MT/NOPB the preferred variant for designs requiring cold-start capability.
Is LM2902MT/NOPB pin-compatible with other LM2902 variants?
Yes, LM2902MT/NOPB is fully pin-compatible with all LM2902-N series variants in SOIC-14 packaging, including LM2902DR, LM2902M, and LM2902PW. All share identical pin functions, electrical specifications, and thermal characteristics. The "MT" suffix denotes tape-and-reel packaging, and "NOPB" indicates lead-free (RoHS-compliant) finish - both do not affect pinout or functionality.
LM2902MT/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- -
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 45 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 1.5mA
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LM2902MT/NOPB FAQ
1.How can I place an order for LM2902MT/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2902MT/NOPB 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 LM2902MT/NOPB reliable?
The price and inventory of LM2902MT/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2902MT/NOPB is usually 5 days.
3.What payment methods are accepted for LM2902MT/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2902MT/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2902MT/NOPB?
LM2902MT/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2902MT/NOPB 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 LM2902MT/NOPB?
For technical support, including LM2902MT/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2902MT/NOPB requirements.
6.How does Aetrix verify that LM2902MT/NOPB is sourced from the original manufacturer or authorized distributors?
All LM2902MT/NOPB 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 LM2902MT/NOPB meets industry standards.
7.What is the process for return or replacement of LM2902MT/NOPB?
All LM2902MT/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM2902MT/NOPB, 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 LM2902MT/NOPB part is unused and in its original packaging.
Return procedure for LM2902MT/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2902MT/NOPB Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
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LM324DR
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MCP6006T-E/OT
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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