My Inquiry
My Account
Texas Instruments LM6144AIMX
- Part No.:
- LM6144AIMX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM6144AIMX.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,333
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM6144AIMX from Texas Instruments is a quad rail-to-rail input-output operational amplifier optimized for low-voltage, low-power precision signal conditioning. It delivers 17MHz gain-bandwidth, 30V/μs slew rate, 650μA/amplifier quiescent current, 107dB CMRR, and operates from 2.7V to 24V supply - enabling high-fidelity analog front-ends in battery-powered depth sounders and barcode scanners.
For engineers reviewing the LM6144AIMX datasheet, LM6144AIMX pinout, LM6144AIMX application, or LM6144AIMX equivalent, key selection criteria include its guaranteed rail-to-rail input range (−0.25V to 5.25V at 5V), output swing within 30mV of rails (RL = 100kΩ), and stable operation driving capacitive loads - critical for ADC buffering and single-supply instrumentation amps.
Technical Context
The LM6144AIMX employs a patented dual-input-stage architecture (NPN + PNP) to achieve true rail-to-rail input common-mode voltage range beyond the supply rails, eliminating input clipping concerns in single-supply systems. Its slew-boosted output stage enables 30V/μs transient response while maintaining stability with >1000pF capacitive loads without external compensation.
This device targets precision DC-coupled amplification where wide dynamic range, low offset drift (3µV/°C), and high open-loop gain (108dB at RL = 10kΩ) are required - particularly in 3-op-amp instrumentation amplifier topologies where input buffer impedance (>100MΩ) and CMR preservation are essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 17MHz at 50kHz - supports stable closed-loop gain ≥100 up to ~170kHz for sensor signal amplification |
| Slew Rate | 30V/μs - enables accurate reproduction of fast transients in ultrasonic echo processing (e.g., fish finder pulse returns) |
| Input Voltage Range | −0.25V to 5.25V at VS = 5V - accepts signals 250mV below negative rail and 250mV above positive rail, simplifying level-shifting |
| Output Swing | Within 30mV of rails (RL = 100kΩ) - maximizes usable dynamic range in 3.3V or 5V systems, improving SNR |
| Quiescent Current | 650μA per amplifier - allows four-channel precision amplification in battery-operated devices with <2.6mA total IQ |
| CMRR | 107dB - rejects common-mode noise in noisy industrial or automotive environments without degrading differential signal integrity |
| Supply Range | 2.7V to 24V - supports direct integration into both Li-ion portable systems and industrial 24V PLC analog I/O modules |
Pinout & Package
LM6144AIMX is packaged in a 14-pin SOIC (D package) with 8.65mm × 3.91mm body size, rated for −40°C to +85°C operating ambient temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Inverting Input (−) | Differential input node for each of four independent amplifiers; accepts rail-to-rail common-mode voltage |
| 2, 6, 10, 14 | Non-inverting Input (+) | Differential input node for each amplifier; enables unity-gain buffer or difference amplifier configurations |
| 3, 7, 11, 12 | Output | Rail-to-rail output stage capable of sourcing/sinking ≥6mA; stable with ≥1000pF capacitive load |
| 4 | V− (Negative Supply) | Ground reference or negative rail connection; supports single-supply (0V) or split-supply operation |
| 14 | V+ (Positive Supply) | Primary power connection; supplies all four amplifiers; decoupling capacitor required at pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input range exceeding supply rails | Enables direct interfacing to sensors or DACs without level-shifting circuitry, reducing BOM count and board area |
| Slew-boosted output architecture | Delivers 30V/μs response while maintaining phase margin >38°, eliminating need for external compensation in most layouts |
| Low 650μA/amplifier quiescent current | Supports always-on analog monitoring in energy-constrained IoT nodes without compromising bandwidth or accuracy |
| 107dB CMRR at DC | Preserves small-signal integrity in high-noise environments such as motor drives or RF-rich wireless base stations |
| Stable with >1000pF capacitive loads | Allows direct driving of ADC input capacitors or long PCB traces without oscillation risk or added series resistance |
Applications
| Depth Sounder Signal Conditioning | Barcode Scanner Analog Front-End |
|---|---|
Use Scenario: Amplifying weak, microsecond-duration ultrasonic return echoes in portable fish finders powered by two AA cells. IC Role / Device Role / Timing Role: Quad amplifier used in transimpedance gain stage, echo envelope detection, and comparator reference buffering. Use Value: Rail-to-rail input captures full echo amplitude even at 2.7V supply; 17MHz GBW resolves sub-μs timing differences for precise depth calculation. | Use Scenario: Conditioning analog signals from laser diode photodiodes in handheld retail scanners operating on USB power. IC Role / Device Role / Timing Role: Single-supply transimpedance amplifier and AC-coupled signal chain driver feeding 12-bit SAR ADC. Use Value: 30V/μs slew rate preserves sharp bar-edge transitions; 650μA/amplifier IQ extends battery life beyond 8 hours per charge. |
| Single-Supply Instrumentation Amp | ADC Input Buffer |
Use Scenario: Building a 3-op-amp instrumentation amplifier for medical ECG front-end using only one LM6144AIMX IC. IC Role / Device Role / Timing Role: Two amplifiers serve as matched input buffers; third implements differential gain stage; fourth provides reference voltage buffering. Use Value: >100MΩ input impedance and 107dB CMRR eliminate resistor matching errors; rail-to-rail output ensures full-scale ADC utilization. | Use Scenario: Driving the sampling capacitor of a 16-bit successive-approximation ADC in an industrial data logger. IC Role / Device Role / Timing Role: Unity-gain buffer isolating precision voltage references and sensor outputs from ADC dynamic loading. Use Value: Stable operation with 20pF+ ADC input capacitance prevents settling errors; 3µV/°C offset drift maintains calibration over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Lower GBW (6.4MHz), higher IQ (550μA/amplifier), no slew-boost architecture | Better DC precision (0.6mV VOS) but insufficient bandwidth for ultrasonic echo processing | Select when ultra-low offset dominates over speed; avoid in depth sounder front-ends requiring >10MHz closed-loop bandwidth |
| OPA4340UA | Higher GBW (5.5MHz), lower IQ (750μA/amplifier), rail-to-rail output only (not input) | Superior noise performance (12nV/√Hz) but limited input range restricts use with bipolar sensor outputs | Prefer for low-noise sensor interfaces where input common-mode stays within rails; not suitable for ±0.25V beyond-rail inputs |
Compared with TLV2464IDR and OPA4340UA, the LM6144AIMX uniquely combines 17MHz bandwidth, true rail-to-rail input/output, and 30V/μs slew rate at sub-1mA total quiescent current - making it the only option among the three for high-speed, single-supply, beyond-the-rails signal acquisition.
Availability
LM6144AIMX is available at Aetrix Electronics and suitable for battery-operated instrumentation, depth sounders/fish finders, and barcode scanners requiring stable component supply across extended production lifecycles.
Supply support for LM6144AIMX 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 innovation in precision amplifiers and signal chain solutions.
The LM614x family was designed specifically for rail-to-rail, low-voltage, low-power precision amplification in portable and single-supply instrumentation - addressing limitations of earlier op amps in battery life, dynamic range, and ease of use.
FAQ
What is the maximum supply voltage rating for LM6144AIMX?
The absolute maximum supply voltage for LM6144AIMX is 33V, as specified in the Absolute Maximum Ratings table. Operation above this voltage risks permanent damage. The recommended operating range remains 2.7V to 24V, and the device achieves optimal performance - including full rail-to-rail input/output swing and 17MHz gain-bandwidth - within that window. Always observe derating guidelines for thermal management at high VS.
Does LM6144AIMX support true rail-to-rail input operation?
Yes, LM6144AIMX supports true rail-to-rail input with a common-mode voltage range extending 0.25V beyond both supply rails (e.g., −0.25V to 5.25V at VS = 5V). This is enabled by its patented dual-input-stage topology (NPN + PNP), allowing direct connection to sensors or DACs that swing below ground or above V+, without external level-shifting components. This capability is confirmed across the full −40°C to +85°C temperature range.
Can LM6144AIMX drive large capacitive loads without instability?
Yes, LM6144AIMX is explicitly characterized for stable operation with capacitive loads ≥1000pF, thanks to its internal slew-boosted output architecture and optimized compensation. Unlike many general-purpose op amps, it does not require external isolation resistors or feedback capacitors when driving ADC input capacitors, long traces, or LCD bias networks. Stability is verified across supply voltages (2.7V–24V) and temperatures (−40°C to +85°C).
What is the typical quiescent current per amplifier in LM6144AIMX?
The typical quiescent current per amplifier in LM6144AIMX is 650μA at VS = 5V and TA = 25°C, rising to 800μA maximum across temperature and process variation. At 2.7V supply, typical IQ drops to 510μA, supporting ultra-low-power modes. This value is measured under standard test conditions (RL > 1MΩ, VCM = VS/2, VO = VS/2) and directly enables four-channel precision amplification with <2.6mA total supply current - ideal for coin-cell or USB-powered devices.
How does the LM6144AIMX differ from older LM6144 variants like LM6144BINFF?
The LM6144AIMX uses the newer "RFB" die revision, which features improved slew-boosted architecture (vs. standard slew in older "GF6" die), tighter output swing specifications (e.g., 30mV from rail vs. 5mV in old die), and updated absolute maximum ratings (33V max VS vs. 35V). It retains identical pinout, electrical specs, and package (SOIC-14) as LM6144BINFF, ensuring drop-in compatibility. The AI grade denotes enhanced initial offset (0.3–1mV) and drift (3µV/°C) versus BI grade.
LM6144AIMX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 25V/µs
- Gain Bandwidth Product:
- 18 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 174 nA
- Voltage - Input Offset:
- 1.3 mV
- Current - Supply:
- 750µA (x4 Channels)
- Current - Output / Channel:
- 22 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 24 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LM6144AIMX FAQ
1.How can I place an order for LM6144AIMX through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6144AIMX 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 LM6144AIMX reliable?
The price and inventory of LM6144AIMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6144AIMX is usually 5 days.
3.What payment methods are accepted for LM6144AIMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6144AIMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6144AIMX?
LM6144AIMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6144AIMX 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 LM6144AIMX?
For technical support, including LM6144AIMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6144AIMX requirements.
6.How does Aetrix verify that LM6144AIMX is sourced from the original manufacturer or authorized distributors?
All LM6144AIMX 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 LM6144AIMX meets industry standards.
7.What is the process for return or replacement of LM6144AIMX?
All LM6144AIMX units undergo pre-shipment inspection (PSI). If there is an issue with LM6144AIMX, 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 LM6144AIMX part is unused and in its original packaging.
Return procedure for LM6144AIMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM6144AIMX 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…
