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Texas Instruments LM2902MTX/NOPB
- Part No.:
- LM2902MTX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2902MTX/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,325
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Product details
Overview
LM2902MTX/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 deployed in industrial sensor signal conditioning and battery-powered analog front-ends.
For engineers reviewing the LM2902MTX/NOPB datasheet, LM2902MTX/NOPB pinout, LM2902MTX/NOPB application, or LM2902MTX/NOPB equivalent, key selection criteria include guaranteed operation down to −40°C, input offset voltage ≤7 mV (max), output swing to 0 V (sinking) and up to V+ −1.5 V (sourcing), and compatibility with TTL/CMOS logic interfaces without dual supplies.
Technical Context
The LM2902MTX/NOPB integrates four independent PNP-input op amps sharing a common bias network that maintains stable 700 μA total supply current across 3 V–26 V operation and −40°C to +85°C junction temperature. Its input stage accepts common-mode voltages from ground to V+ −1.5 V, enabling direct interfacing with grounded transducers and microcontroller ADC references.
Each amplifier delivers 20 mA sourcing and 10 mA sinking output current into 2 kΩ loads, with large-signal voltage gain ≥25 V/mV at 15 V supply, and amplifier-to-amplifier coupling <−120 dB - supporting multi-channel signal processing without crosstalk-induced errors in compact PCB layouts.
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 use with 5 V or 24 V industrial rails without level-shifting. |
| Unity-Gain Bandwidth | 1 MHz (temperature compensated); supports stable closed-loop gain up to 100× at DC–10 kHz for sensor amplification. |
| Input Offset Voltage | 2 mV (typ), 7 mV (max) at 25°C; ensures ≤70 mV error in 10× gain stages without trimming. |
| Supply Current | 700 μA total (all four op amps), independent of supply voltage; extends battery life in portable instrumentation. |
| Input Common-Mode Range | 0 V to V+ −1.5 V; allows direct connection of grounded thermistors, strain gauges, and current-sense shunts. |
| Output Voltage Swing | 0 V to V+ −1.5 V (RL = 2 kΩ); drives ADC inputs and comparator thresholds referenced to system ground. |
| Common-Mode Rejection | 50 dB (min) to 70 dB (typ); suppresses noise on shared sensor supply lines in noisy industrial environments. |
Pinout & Package
LM2902MTX/NOPB is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) with 8.65 mm × 3.91 mm body size and standard 1.27 mm pitch - compatible with automated SMT assembly and IPC-7351B footprint requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | Output (Ch1–Ch4) | Class-AB output stage capable of sourcing 20 mA / sinking 10 mA; swings to ground for single-supply zero-referenced outputs. |
| 2, 6, 9, 13 | Inverting Input (Ch1–Ch4) | PNP-diffpair input with 45 nA bias current (typ); accepts signals down to ground without phase inversion artifacts. |
| 3, 5, 10, 12 | Noninverting Input (Ch1–Ch4) | True differential input with common-mode range including ground; eliminates need for input biasing resistors in DC-coupled sensors. |
| 4 | V+ | Positive supply rail for all four amplifiers; decoupling capacitor required within 10 mm for stability at full bandwidth. |
| 11 | GND | Ground reference for all channels and internal bias network; must be low-impedance path to minimize PSRR degradation. |
Key Features
| Feature | Design Value |
|---|---|
| Internally frequency compensated | Stable unity-gain operation without external compensation components - reduces BOM count and layout sensitivity. |
| Input includes ground | Enables direct interface with grounded transducers (e.g., RTDs, load cells) without level-shifting circuitry or virtual ground generators. |
| Low supply current | 700 μA total quiescent draw allows continuous operation in energy-constrained systems such as wireless sensor nodes. |
| Temperature-compensated bias | Input bias current remains stable across −40°C to +85°C, minimizing drift-induced gain error in uncalibrated industrial systems. |
| Single-supply optimization | Eliminates need for ±15 V supplies in legacy analog designs - simplifies power architecture and reduces transformer/DC-DC count. |
Applications
| Industrial Sensor Signal Conditioning | Automotive Cabin Climate Control |
|---|---|
|
Use Scenario: Amplifying low-level mV outputs from NTC thermistors and pressure transducers in PLC analog input modules. IC Role / Device Role / Timing Role: Quad op amp provides simultaneous gain, filtering, and level-shifting for four independent sensor channels. Use Value: Input common-mode range including ground enables direct connection to grounded sensors; 700 μA total supply current supports dense channel packing without thermal derating. |
Use Scenario: Converting cabin temperature and humidity sensor outputs to 0–5 V signals for MCU ADC sampling in HVAC control units. IC Role / Device Role / Timing Role: Single-supply quad op amp implements precision non-inverting amplifiers and summing circuits with minimal external components. Use Value: Guaranteed −40°C to +85°C operation meets automotive ambient requirements; rail-to-ground output swing matches 5 V MCU reference voltage. |
| Portable Medical Instrumentation | Smart Energy Meter Analog Front-End |
|
Use Scenario: Signal conditioning for ECG electrode inputs and pulse oximeter photodiode amplifiers in handheld diagnostic devices. IC Role / Device Role / Timing Role: Four independent amplifiers handle lead-off detection, AC-coupled biopotential amplification, and reference buffering. Use Value: Low 700 μA supply current extends battery life; 1 MHz bandwidth supports accurate R-wave detection and SpO₂ modulation frequencies. |
Use Scenario: Amplifying shunt-based current measurements and voltage divider outputs in Class 0.5 electricity meters. IC Role / Device Role / Timing Role: Configured as precision difference amplifiers and programmable gain stages for metrology-grade signal chains. Use Value: 2 mV max input offset ensures <0.1% gain error at 10×; CMRR ≥50 dB rejects common-mode noise from switching power supplies. |
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 | 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); identical SOIC-14 package. | Restricted to commercial-grade equipment; unsuitable for automotive or extended-temperature industrial deployments. | Select LM324DT only for cost-sensitive consumer electronics where ambient temperature stays within 0–70°C. |
| TLV2464IDR | Rail-to-rail input/output; lower supply current (550 μA typ); higher bandwidth (6.4 MHz); SOIC-14 pinout but not functionally identical. | Requires redesign of feedback networks due to different gain-bandwidth product and output stage behavior. | Choose TLV2464IDR when rail-to-rail I/O and higher speed are mandatory - not a drop-in replacement for LM2902MTX/NOPB. |
Compared with LM324DT and TLV2464IDR, LM2902MTX/NOPB uniquely balances extended temperature capability, proven robustness in noisy industrial environments, and true single-supply operation with ground-referenced inputs - making it the preferred choice for reliability-critical embedded analog signal chains.
Availability
LM2902MTX/NOPB is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive climate control systems, and portable medical instrumentation requiring stable component supply across long production lifecycles.
Supply support for LM2902MTX/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 over 50 years of innovation in precision amplifiers and power management ICs.
LM2902MTX/NOPB belongs to TI's legacy low-power op amp product line, designed specifically for cost-effective, robust single-supply analog signal conditioning in industrial, automotive, and medical applications where reliability and wide temperature operation are essential.
FAQ
What is the maximum operating junction temperature for LM2902MTX/NOPB?
The LM2902MTX/NOPB has a maximum operating junction temperature of +85°C, as specified in the Recommended Operating Conditions table. This rating applies across its full supply voltage range of 3 V to 26 V and defines the upper thermal limit for reliable continuous operation in industrial and automotive environments.
Does LM2902MTX/NOPB support rail-to-rail output swing?
LM2902MTX/NOPB does not provide rail-to-rail output swing. Its output voltage swing is specified as 0 V to V+ −1.5 V (with RL = 2 kΩ), meaning it can drive down to ground but cannot reach the positive rail. This limitation is inherent to its PNP-input, class-AB output architecture and must be accounted for in ADC interface design.
Can LM2902MTX/NOPB be used with a 3.3 V supply?
Yes, LM2902MTX/NOPB is fully specified for operation 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 gain bandwidth (~600 kHz), and output swing (0 V to ~1.8 V), making it suitable for low-voltage IoT sensor nodes and battery-powered devices.
What is the input bias current specification for LM2902MTX/NOPB?
The LM2902MTX/NOPB exhibits a typical input bias current of 45 nA at 25°C, with a maximum of 250 nA across the full −40°C to +85°C temperature range. This PNP-input characteristic enables high-impedance sensor interfacing while maintaining stability over temperature without external bias compensation.
Is LM2902MTX/NOPB pin-compatible with other LMx24 family members?
Yes, LM2902MTX/NOPB shares identical pinout and electrical behavior with LM324-N, LM224-N, and LM124-N in SOIC-14 packaging. All four variants use the same 14-pin functional mapping and can be substituted in existing designs - though temperature range, input offset, and supply voltage limits differ between variants and must be verified per application.
LM2902MTX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
LM2902MTX/NOPB FAQ
1.How can I place an order for LM2902MTX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2902MTX/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 LM2902MTX/NOPB reliable?
The price and inventory of LM2902MTX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2902MTX/NOPB is usually 5 days.
3.What payment methods are accepted for LM2902MTX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2902MTX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2902MTX/NOPB?
LM2902MTX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2902MTX/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 LM2902MTX/NOPB?
For technical support, including LM2902MTX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2902MTX/NOPB requirements.
6.How does Aetrix verify that LM2902MTX/NOPB is sourced from the original manufacturer or authorized distributors?
All LM2902MTX/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 LM2902MTX/NOPB meets industry standards.
7.What is the process for return or replacement of LM2902MTX/NOPB?
All LM2902MTX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM2902MTX/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 LM2902MTX/NOPB part is unused and in its original packaging.
Return procedure for LM2902MTX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2902MTX/NOPB Tags
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