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Texas Instruments LM2902MT
- Part No.:
- LM2902MT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2902MT.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,523
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Product details
Overview
LM2902MT from Texas Instruments is a quad low-power operational amplifier optimized for single-supply operation from 3 V to 26 V, featuring rail-to-ground input common-mode range, 1 MHz unity-gain bandwidth, 100 dB open-loop gain, and 700 µA typical supply current per amplifier. It serves as a general-purpose signal conditioning IC in industrial sensor interfaces, 5 V microcontroller peripheral amplification, and battery-powered analog front-ends.
For engineers reviewing the LM2902MT datasheet, LM2902MT pinout, LM2902MT application, or LM2902MT equivalent, this page delivers verified specifications, TSSOP-14 package details, real-world use cases, and two validated alternative parts - all aligned with TI's official SNOSC16B revision September 2004 datasheet and Package Option Addendum (Jan 2013).
Technical Context
The LM2902MT implements a PNP-input stage enabling true ground-sensing capability and output swing to within 1.5 V of V+, supporting single-rail systems without level-shifting. Its internal frequency compensation ensures stable unity-gain operation across −40°C to +85°C.
It delivers 40 mA short-circuit output current per channel, maintains 50 dB minimum PSRR and 50 dB minimum CMRR at 25°C, and exhibits temperature-compensated input bias current (45 nA typ) and offset voltage drift (7 µV/°C), making it suitable for precision DC-coupled applications where thermal stability matters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 26 V single supply - enables direct interface with 3.3 V/5 V logic rails and eliminates need for dual supplies. |
| Input Common-Mode Range | 0 V to V+ −1.5 V - allows direct sensing of signals referenced to ground in single-supply systems. |
| Unity-Gain Bandwidth | 1 MHz - supports audio-frequency amplification, active filtering, and moderate-speed sensor signal conditioning. |
| Open-Loop Gain | 100 dB (min) - ensures ≤2 mV typical input offset error propagation in closed-loop configurations. |
| Supply Current per Amplifier | 700 µA (typ) - enables multi-channel analog functions in power-constrained embedded designs. |
| Output Voltage Swing | 0 V to V+ −1.5 V - provides full dynamic range utilization when driving ADC inputs or low-side loads. |
| Input Offset Voltage | 2 mV (max at 25°C) - meets requirements for basic transducer amplification without trimming. |
Pinout & Package
TSSOP-14 (PW package drawing), 4.4 mm × 5.0 mm body, 0.65 mm pitch, thin shrink small-outline package optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Amplifier A output - drives external load or feedback network; capable of sourcing/sinking up to 40 mA. |
| 2 | Inverting Input A | −IN for Amp A - accepts feedback or signal inversion; shares common-mode range with ground. |
| 3 | Non-Inverting Input A | +IN for Amp A - accepts reference or sensor signal; operates down to 0 V with no phase reversal. |
| 4 | V− / GND | Ground reference - serves as return path for all four amplifiers and bias network. |
| 5 | Non-Inverting Input B | +IN for Amp B - electrically isolated from other channels; supports independent DC-coupled inputs. |
| 6 | Inverting Input B | −IN for Amp B - used in inverting gain stages or summing configurations with Amp B. |
| 7 | Output B | Amplifier B output - identical drive capability and voltage swing as Pin 1. |
| 8 | Output C | Amplifier C output - fully independent channel; shares same electrical specs as Pins 1 and 7. |
| 9 | Inverting Input C | −IN for Amp C - placed adjacent to Output C (Pin 8) to minimize trace length in layout-sensitive designs. |
| 10 | Non-Inverting Input C | +IN for Amp C - supports rail-to-ground input; compatible with thermistor, potentiometer, or DAC outputs. |
| 11 | V+ | Positive supply - accepts 3 V to 26 V; internal bias network draws current independent of voltage magnitude. |
| 12 | Non-Inverting Input D | +IN for Amp D - enables fourth independent signal path; used in multi-sensor monitoring or redundancy circuits. |
| 13 | Inverting Input D | −IN for Amp D - supports differential or inverting configurations for final channel. |
| 14 | Output D | Amplifier D output - completes quad functionality; matches performance of other outputs under same load conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground input common-mode range | Enables direct connection of 0 V-referenced sensors (e.g., thermocouples, bridge transducers) without external biasing. |
| Output swing to within 1.5 V of V+ | Maximizes usable output headroom in 5 V or 3.3 V systems, improving ADC resolution utilization. |
| Temperature-compensated input bias current | Maintains stable input loading across −40°C to +85°C, critical for high-impedance source applications. |
| Internally frequency compensated | Guarantees stability in unity-gain follower and low-gain configurations without external compensation components. |
| Low quiescent current (700 µA/amplifier) | Supports always-on analog monitoring in battery-powered devices with multi-channel requirements. |
Applications
| Industrial Sensor Interface | Microcontroller Analog Front-End |
|---|---|
Use Scenario: Amplifying low-level output from 4–20 mA loop-powered pressure sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Quad op amp configured as current-to-voltage converter, buffer, and filter stage for each sensor channel. Use Value: Ground-sensing input eliminates need for external bias resistors; 1 MHz bandwidth supports fast transient response in process control. |
Use Scenario: Signal conditioning for on-board temperature, voltage, and current monitoring in ARM-based edge controllers. IC Role / Device Role / Timing Role: Four independent amplifiers provide simultaneous scaling, offset correction, and anti-alias filtering before MCU ADC sampling. Use Value: Single 5 V supply compatibility reduces BOM count; low supply current extends runtime in fanless embedded systems. |
| Battery-Powered Instrumentation | Automotive Body Electronics |
Use Scenario: Portable multimeter front-end amplifying mV-range thermocouple and resistance measurements. IC Role / Device Role / Timing Role: Precision DC amplifier with rail-to-ground input and low offset drift for accurate zero-reference measurement. Use Value: 2 mV max input offset and 7 µV/°C drift ensure <±1°C accuracy over operating temperature without calibration. |
Use Scenario: Window lift motor current sensing and cabin ambient light level amplification in entry-level vehicles. IC Role / Device Role / Timing Role: Dual-channel implementation: one amp for current shunt amplification, another for photodiode signal conditioning. Use Value: Qualified for −40°C to +85°C operation; robust ESD tolerance (250 V HBM) withstands automotive board handling environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2902M/NOPB | SOIC-14 package (5.0 mm × 6.2 mm); same electrical specs and temperature range (−40°C to +85°C). | Preferred for through-hole prototyping or legacy PCBs with SOIC footprints; lower thermal resistance than TSSOP. | Select LM2902M/NOPB when board space allows larger footprint and thermal management prioritizes convection cooling. |
| LM324MT/NOPB | Same TSSOP-14 package but rated for 0°C to +70°C only; higher input offset voltage (7 mV max) and reduced CMRR (50 dB min). | Suitable for commercial-grade consumer electronics where extended temperature range is not required. | Choose LM324MT/NOPB only for cost-sensitive non-industrial applications with ambient temperature constraints. |
Compared with LM2902M/NOPB, the LM2902MT offers superior board density and finer pitch compatibility with modern SMT lines; versus LM324MT/NOPB, it delivers guaranteed industrial temperature operation and tighter DC precision - critical for sensor signal integrity in harsh environments.
Availability
LM2902MT is available at Aetrix Electronics and suitable for industrial sensor interfaces, microcontroller analog front-ends, and battery-powered instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM2902MT 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 manufacturing excellence.
The LM2902 series belongs to TI's legacy low-power quad op amp product line, engineered specifically for reliable single-supply operation in industrial, automotive, and embedded control applications demanding ground-sensing capability and thermal stability.
FAQ
What is the maximum supply voltage for LM2902MT?
The LM2902MT supports a maximum single-supply voltage of 26 V, as specified in its Absolute Maximum Ratings table. Exceeding this limit risks permanent damage. This rating distinguishes it from the LM324 family (32 V max) and aligns with its industrial temperature grade and internal protection design. Always operate LM2902MT within 3 V to 26 V for reliable performance.
Does LM2902MT support rail-to-rail input and output?
The LM2902MT features rail-to-ground input common-mode range (0 V to V+ −1.5 V) and output swing from 0 V to V+ −1.5 V - not full rail-to-rail. It does not support input voltages above V+ −1.5 V or output beyond that upper limit. This behavior is inherent to its PNP-input architecture and is confirmed in the Electrical Characteristics tables of the SNOSC16B datasheet.
Can LM2902MT be used with a 3.3 V supply?
Yes, LM2902MT operates reliably from 3 V to 26 V single supply, including 3.3 V systems. At 3.3 V, it maintains functional input common-mode range (0 V to 1.8 V), usable output swing (0 V to 1.8 V), and 700 µA typical supply current per amplifier. Performance metrics such as gain and bandwidth scale predictably per the datasheet's V+ = 5 V test conditions.
What is the operating temperature range of LM2902MT?
The LM2902MT is rated for −40°C to +85°C, as documented in TI's Package Option Addendum and Electrical Characteristics tables. This industrial temperature grade differentiates it from the commercial LM324 series (0°C to +70°C) and makes it suitable for deployment in uncontrolled environments such as factory floors, outdoor equipment, and automotive body modules.
Is LM2902MT pin-compatible with LM324MT?
Yes, LM2902MT and LM324MT share identical TSSOP-14 (PW) pinout and footprint, but they are not functionally interchangeable without design review. LM2902MT guarantees −40°C to +85°C operation and tighter DC specs (e.g., 2 mV vs. 7 mV max input offset), while LM324MT is limited to 0°C to +70°C and exhibits degraded CMRR and PSRR. System validation is required before substitution.
LM2902MT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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 FAQ
1.How can I place an order for LM2902MT through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2902MT 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 reliable?
The price and inventory of LM2902MT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2902MT is usually 5 days.
3.What payment methods are accepted for LM2902MT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2902MT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2902MT?
LM2902MT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2902MT 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?
For technical support, including LM2902MT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2902MT requirements.
6.How does Aetrix verify that LM2902MT is sourced from the original manufacturer or authorized distributors?
All LM2902MT 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 meets industry standards.
7.What is the process for return or replacement of LM2902MT?
All LM2902MT units undergo pre-shipment inspection (PSI). If there is an issue with LM2902MT, 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 part is unused and in its original packaging.
Return procedure for LM2902MT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2902MT 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
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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