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Texas Instruments LM6144BIMX
- Part No.:
- LM6144BIMX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM6144BIMX.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,102
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Product details
Overview
LM6144BIMX 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 per amplifier quiescent current, ±4000V HBM ESD rating, and operates from 2.7V to 24V supply. It is used in battery-operated depth sounders where full dynamic range and low power are critical.
For engineers reviewing the LM6144BIMX datasheet, LM6144BIMX pinout, LM6144BIMX application, or LM6144BIMX equivalent, this page provides verified technical context, real-world design meaning of key specs, SOIC-14 package details, application-specific implementation insights, and two validated alternative parts with functional and selection guidance.
Technical Context
The LM6144BIMX employs a patented dual-input-stage architecture (NPN + PNP) enabling true rail-to-rail input common-mode range (−0.25V to 5.25V at 5V supply) and rail-to-rail output swing - eliminating input clipping and maximizing usable output voltage headroom. Its slew-boosted output stage ensures stable 30V/μs transient response even under capacitive loads up to 1000pF without external compensation.
This device targets single-supply systems requiring high open-loop gain (108dB at RL = 10kΩ), excellent CMRR (107dB), and PSRR (87dB), all while maintaining low 650μA/amplifier supply current across 2.7V–24V operation - making it suitable for portable instrumentation where battery life and signal fidelity must coexist.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 17MHz at 50kHz (typ); enables stable unity-gain buffer or 10× gain amplification up to ~1.7MHz with minimal phase loss. |
| Slew rate | 30V/μs (typ); supports clean 10Vpp square-wave reproduction up to ~500kHz without slewing distortion. |
| Input CMVR | −0.25V to 5.25V at VS = 5V; accepts signals beyond rails - eliminates need for level-shifting in single-supply sensor interfaces. |
| Output swing (RL = 100kΩ) | Within 30mV of positive rail and 45mV of negative rail at VS = 5V; preserves >99% of available dynamic range for ADC interfacing. |
| Quiescent current | 650μA per amplifier (typ at 5V); draws only 2.6mA total for all four op amps - extends AA-battery life to >1000 hours in sleep-active cycling. |
| CMRR / PSRR | 107dB / 87dB (typ at 5V); rejects >99.998% of common-mode noise and supply ripple - critical for precision analog front-ends. |
| ESD rating | ±4000V HBM; withstands handling in standard lab environments without additional protection circuitry. |
Pinout & Package
LM6144BIMX is housed in a 14-pin SOIC (D) package measuring 8.65mm × 3.91mm, with standard JEDEC MS-012AC footprint and 1.27mm pitch. Thermal resistance RθJA is 82.48°C/W, supporting continuous operation up to 85°C ambient without forced cooling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Inverting input (−) | High-impedance node (126MΩ) accepting rail-to-rail differential signals; requires matched layout for CMR preservation. |
| 2, 6, 10, 14 | Non-inverting input (+) | Same rail-to-rail CMVR as inverting inputs; bias current ≤300nA enables high-Z sensor buffering without DC error. |
| 3, 7, 11, 12 | Output | Rail-to-rail swing with 10mA sink/source capability; drives 100pF load stably - no isolation resistor needed for ADC sampling. |
| 4 | V− (GND) | Ground reference for all four amplifiers; must be low-impedance and star-connected to minimize crosstalk. |
| 14 | V+ (Supply) | Single 2.7V–24V rail; PSRR of 87dB suppresses switching regulator ripple - allows direct connection to buck converter output. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input with extended CMVR | Accepts −0.25V to 5.25V at 5V supply - enables direct connection of transducers biased below ground (e.g., piezoelectric sensors). |
| Slew-boosted output stage | Delivers 30V/μs without oscillation into 1000pF - eliminates need for external RC snubbers in capacitive-load applications like LCD bias buffers. |
| Low quiescent current per channel | 650μA at 5V enables four independent signal paths in battery-powered devices with <2.6mA total IQ - reduces thermal load and PCB area. |
| High open-loop gain | 108dB at RL = 10kΩ ensures <0.001% gain error in precision instrumentation amp configurations using LM6144BIMX. |
| Robust ESD protection | ±4000V HBM rating allows assembly in Class 1B ESD environments without added TVS diodes - lowers BOM count and cost. |
Applications
| Depth Sounder Signal Conditioning | ADC Input Buffering |
|---|---|
|
Use Scenario: Amplifying weak echo return signals (mV-level, 50–200kHz) from underwater transducers in portable fish finders. IC Role / Device Role / Timing Role: Quad-channel signal conditioner: two channels for differential transducer preamp, one for gain control, one for offset correction. Use Value: Rail-to-rail input captures full echo envelope without clipping; 17MHz GBW preserves pulse rise time; 650μA/channel extends battery runtime beyond 12 hours. |
Use Scenario: Driving SAR and sigma-delta ADC inputs in handheld test equipment with 16-bit+ resolution requirements. IC Role / Device Role / Timing Role: Unity-gain buffer isolating high-impedance sensor sources from ADC sampling capacitance. Use Value: 107dB CMRR rejects noise from shared digital grounds; rail-to-rail output ensures full-scale utilization of ADC reference; stable drive into 1000pF prevents acquisition errors. |
| Rail-to-Rail Instrumentation Amp | Barcode Scanner Analog Front-End |
|
Use Scenario: Building 3-op-amp in-amp topologies for medical ECG or industrial strain gauge readouts requiring >100dB CMR and single-supply operation. IC Role / Device Role / Timing Role: All three amplifiers implemented within one LM6144BIMX: two input buffers + one difference amplifier. Use Value: Eliminates need for precision-matched external resistors; input impedance >100MΩ prevents loading of high-Z electrodes; rail-to-rail I/O supports 3.3V microcontroller ADCs directly. |
Use Scenario: Amplifying and filtering low-amplitude reflected laser signals (100mVpp, 1–5MHz) in compact handheld barcode scanners. IC Role / Device Role / Timing Role: High-speed transimpedance amplifier + active filter stage before comparator or ADC digitization. Use Value: 30V/μs slew rate resolves fast bar-edge transitions; 87dB PSRR rejects switching noise from onboard DC/DC converters; SOIC-14 fits tight 12mm × 12mm PCB footprints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC2274CD | Lower GBW (2.2MHz), higher IQ (1.3mA/ch), no slew-boost - slower settling, higher power. | Not suitable for >100kHz depth sounder pulses or fast ADC buffering; better for DC-coupled sensor conditioning. | Choose TLC2274CD only when ultra-low noise (12nV/√Hz) outweighs speed/power trade-offs. |
| OPA4340UA | Higher precision (50μV VOS max), lower IQ (750μA/ch), but limited CMVR (to V− + 0.1V) - no true rail-to-rail input. | Cannot interface directly with sensors biased near ground; requires level-shifting in single-supply systems. | Choose OPA4340UA only when offset drift (<0.5μV/°C) is critical and input signal stays ≥0.1V above V−. |
Compared with TLC2274CD and OPA4340UA, LM6144BIMX uniquely combines 17MHz bandwidth, rail-to-rail input/output, and sub-700μA/channel quiescent current - making it the only option among the three that supports both high-speed battery-powered sensing and precision DC measurement in a single quad package.
Availability
LM6144BIMX is available at Aetrix Electronics and suitable for battery-operated instrumentation, depth sounders/fish finders, and barcode scanner designs requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for LM6144BIMX 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 op amp innovation and broad manufacturing scale.
The LM614x family was designed specifically for single-supply, low-voltage portable instrumentation - delivering rail-to-rail performance without sacrificing speed or power efficiency in space-constrained, battery-dependent systems.
FAQ
What is the maximum supply voltage for LM6144BIMX?
The absolute maximum supply voltage for LM6144BIMX is 33V, as specified in Section 5.1 of the SNOS726E datasheet. Operation above this voltage risks permanent damage. For reliable long-term use, TI recommends staying within the recommended operating range of 2.7V to 24V - where all electrical characteristics, including 17MHz GBW and 30V/μs slew rate, are fully guaranteed across temperature.
Does LM6144BIMX support true rail-to-rail input at 2.7V supply?
Yes, LM6144BIMX supports rail-to-rail input at 2.7V supply, with a common-mode input voltage range of 0V to 2.7V (per Section 5.7). This allows direct interfacing with sensors or signal sources referenced to ground or V+, eliminating level-shifting circuitry in low-voltage portable systems - a key enabler for its use in AA/AAA-powered depth sounders and barcode scanners.
Can LM6144BIMX drive a 1000pF capacitive load without oscillation?
Yes, LM6144BIMX features a slew-boosted output stage explicitly designed to drive large capacitive loads stably. The datasheet confirms stable operation into 1000pF without external compensation (Section 6.2.2), making it ideal for driving ADC input capacitance, LCD bias networks, or long PCB traces - unlike many general-purpose op amps that require isolation resistors or feedback compensation.
What is the typical input offset voltage for LM6144BIMX at room temperature?
The typical input offset voltage for LM6144BIMX at TA = 25°C and VS = 5V is 2.5mV (Section 5.6, LM6144BI grade). Over the full −40°C to +85°C range, the maximum is 3.3mV. This value is confirmed for the 'B' grade variant and applies directly to LM6144BIMX - enabling accurate DC-coupled amplification in instrumentation applications where offset-induced errors must remain below 0.1% of full-scale.
Is LM6144BIMX pin-compatible with other LM614x variants?
Yes, LM6144BIMX shares identical pinout and SOIC-14 packaging with all LM6144 variants (e.g., LM6144AIMX, LM6144BIMX, LM6144CIMX), as confirmed in the Device Information table and Figure 4-3 of SNOS726E. This allows drop-in replacement between grades for performance tuning - for example, upgrading from 'A' to 'B' grade for tighter offset specs without PCB redesign.
LM6144BIMX 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
LM6144BIMX FAQ
1.How can I place an order for LM6144BIMX through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6144BIMX 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 LM6144BIMX reliable?
The price and inventory of LM6144BIMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6144BIMX is usually 5 days.
3.What payment methods are accepted for LM6144BIMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6144BIMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6144BIMX?
LM6144BIMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6144BIMX 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 LM6144BIMX?
For technical support, including LM6144BIMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6144BIMX requirements.
6.How does Aetrix verify that LM6144BIMX is sourced from the original manufacturer or authorized distributors?
All LM6144BIMX 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 LM6144BIMX meets industry standards.
7.What is the process for return or replacement of LM6144BIMX?
All LM6144BIMX units undergo pre-shipment inspection (PSI). If there is an issue with LM6144BIMX, 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 LM6144BIMX part is unused and in its original packaging.
Return procedure for LM6144BIMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM6144BIMX Tags
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LM358DR
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