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Texas Instruments LM6144BIM
- Part No.:
- LM6144BIM
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM6144BIM.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,494
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Product details
Overview
LM6144BIM from Texas Instruments is a quad rail-to-rail input-output operational amplifier optimized for low-voltage, battery-powered instrumentation. It delivers 17MHz gain-bandwidth, 30V/μs slew rate, 650μA per amplifier quiescent current, 2.7V to 24V supply range, and ±0.25V to +5.25V common-mode input range at 5V supply - enabling high-precision signal conditioning in depth sounders and barcode scanners.
For engineers reviewing the LM6144BIM datasheet, LM6144BIM pinout, LM6144BIM application, or LM6144BIM 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 LM6144BIM uses dual NPN/PNP input stage architecture enabling rail-to-rail input beyond supply rails (−0.25V to +5.25V at VS = 5V), eliminating CMVR violation concerns in single-supply systems. Its slew-boosted output stage achieves 30V/μs slew rate while maintaining stability into large capacitive loads without external compensation.
It operates across 2.7V–24V supplies with 650μA/amplifier IQ, supporting wide dynamic range in portable equipment. The 107dB CMRR and 87dB PSRR ensure robust performance in noisy environments, while 17MHz GBW enables accurate amplification up to 50kHz signals with minimal phase error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 17MHz at 50kHz - supports stable closed-loop gain ≥100 up to 170kHz; enables precision AC-coupled sensor front-ends. |
| Slew rate | 30V/μs - preserves fast transient fidelity in pulse-amplification stages (e.g., echo detection in fish finders). |
| Supply current per amp | 650μA - extends battery life in 3.3V/5V portable instruments; enables 4-channel operation under 3mA total IQ. |
| Input CMVR | −0.25V to +5.25V at VS = 5V - accepts signals below ground or above VCC, simplifying level-shifting in single-supply data acquisition. |
| Output swing (RL = 100kΩ) | Within 30mV of rails - maximizes usable dynamic range on low-voltage supplies (e.g., 3.3V ADC buffer with >3.24Vpp output). |
| CMRR | 107dB - rejects common-mode noise from shared power rails or EMI-coupled traces in compact PCB layouts. |
| PSRR | 87dB - maintains DC accuracy despite ±100mV supply ripple, critical for battery-powered analog front-ends. |
Pinout & Package
LM6144BIM is housed in a 14-pin SOIC (D) package measuring 8.65mm × 3.91mm, rated for −40°C to +85°C ambient operation. Thermal resistance RθJA is 82.48°C/W, supporting moderate-power analog signal chains without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Inverting input (−) | Accepts differential input signals; high-impedance node (126MΩ) minimizes loading on sensor sources. |
| 2, 6, 10, 12 | Non-inverting input (+) | Supports rail-to-rail common-mode range; enables direct connection to unbuffered transducer outputs. |
| 3, 7, 11, 14 | Output | Rail-to-rail swing (30mV from rails) drives ADC inputs or low-impedance loads without level-shifting circuitry. |
| 4 | V− (GND) | Ground reference for all four amplifiers; requires low-impedance local decoupling to maintain PSRR. |
| 13 | V+ (Supply) | Single positive supply input (2.7V–24V); powers all four op-amps; must be bypassed with ≥0.1μF ceramic capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input beyond supply rails | CMVR extends −0.25V below V− and +0.25V above V+, eliminating need for input biasing resistors in single-supply designs. |
| Slew-boosted output stage | Delivers 30V/μs without oscillation into 1000pF loads - removes need for isolation resistors when driving ADC sample capacitors. |
| Low quiescent current | 650μA per amplifier enables 4-channel operation at <3mA total, extending runtime in AA-battery-powered handheld instruments. |
| High open-loop gain | 108dB gain with 10kΩ load ensures <0.001% gain error in unity-gain buffers used for precision voltage references. |
| Robust ESD protection | ±4000V HBM rating allows safe handling during manual assembly and field service without special grounding protocols. |
Applications
| Battery-Operated Instrumentation | Depth Sounders / Fish Finders |
|---|---|
Use Scenario: Portable pH meters, handheld multimeters, and environmental sensors operating from coin-cell or AA batteries. IC Role / Device Role / Timing Role: Signal conditioning amplifier for low-level transducer outputs (e.g., thermistor bridges, pH electrodes) with rail-to-rail input to capture full sensor range. Use Value: 650μA/amplifier IQ and 2.7V minimum supply enable >500-hour operation on two AA cells; rail-to-rail I/O eliminates level-shifting components. | Use Scenario: Echo-pulse amplification and filtering in ultrasonic depth measurement systems deployed on small boats or diving gear. IC Role / Device Role / Timing Role: High-speed, low-noise preamplifier for piezoelectric transducer return signals; 30V/μs slew rate preserves microsecond-scale pulse edges. Use Value: 17MHz GBW supports clean amplification of 500kHz echo bursts; 107dB CMRR rejects engine ignition noise coupled into transducer cables. |
| Barcode Scanners | Rail-to-Rail Instrumentation Amps |
Use Scenario: Laser diode driver feedback and photodiode signal recovery in handheld retail and logistics scanners. IC Role / Device Role / Timing Role: Transimpedance amplifier converting photodiode current to voltage; rail-to-rail output drives comparator thresholds directly. Use Value: 30V/μs slew rate resolves rapid bar-edge transitions; 16nV/√Hz input noise ensures reliable decoding of low-contrast barcodes. | Use Scenario: Three-op-amp instrumentation amplifier for industrial pressure/strain sensors powered from single 5V or 3.3V rails. IC Role / Device Role / Timing Role: Dual-input buffer + difference amplifier configuration using one LM6144BIM IC; rail-to-rail I/O enables full-scale sensor output utilization. Use Value: Eliminates precision resistor arrays and external level shifters; 100MΩ input impedance prevents sensor loading; CMRR preserved by matched internal topology. |
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 |
|---|---|---|---|
| TLV2464CDR | Lower GBW (6.4MHz), higher IQ (550μA/amp), same SOIC-14 package; 10V/μs slew rate. | Less suitable for >100kHz pulse amplification; better for low-power DC-coupled sensor buffering. | Select TLV2464CDR when bandwidth demand ≤50kHz and ultra-low power (<2.2mA total) is prioritized over transient fidelity. |
| OPA4340UA | Higher precision (50μV VOS max), lower noise (8nV/√Hz), but 5.5MHz GBW and 750μA/amp IQ. | Preferred for high-accuracy DC measurements (e.g., medical sensors); insufficient slew for fast echo pulses. | Choose OPA4340UA when offset drift and long-term stability outweigh speed requirements in battery-powered precision instruments. |
Compared with TLV2464CDR and OPA4340UA, LM6144BIM uniquely balances 17MHz bandwidth, 30V/μs slew, and sub-3mA total supply current - making it optimal for portable systems requiring both speed and battery longevity, such as fish finders and handheld test equipment.
Availability
LM6144BIM is available at Aetrix Electronics and suitable for battery-operated instrumentation, depth sounders/fish finders, and barcode scanners requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for LM6144BIM 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 expertise in precision op-amps and low-power signal chain solutions.
The LM614x family was designed specifically for rail-to-rail, low-voltage, high-speed analog signal conditioning in portable and battery-constrained systems - addressing the need for wide dynamic range without sacrificing bandwidth or power efficiency.
FAQ
What is the maximum supply voltage for LM6144BIM?
The absolute maximum supply voltage for LM6144BIM is 33V, as specified in the Absolute Maximum Ratings table. Operation beyond 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 are guaranteed across temperature.
Does LM6144BIM support true rail-to-rail input beyond the supply rails?
Yes, LM6144BIM supports a common-mode input voltage range of −0.25V to +5.25V when operated at VS = 5V - extending 0.25V beyond both rails. This feature eliminates input clamping diodes and external bias networks in single-supply applications, confirmed in Section 5.6 of the SNOS726E datasheet.
What is the typical output voltage swing for LM6144BIM at 5V supply?
At VS = 5V and RL = 100kΩ, LM6144BIM delivers a typical output swing within 30mV of the positive rail and 45mV of the negative rail - i.e., 0.03V to 4.97V. This rail-to-rail capability is maintained across temperature (−40°C to +85°C), ensuring consistent dynamic range in battery-powered devices.
Can LM6144BIM drive capacitive loads without external compensation?
Yes, LM6144BIM is explicitly characterized to drive large capacitive loads stably - a key feature highlighted in the Description section. Its slew-boosted architecture and internal compensation allow direct connection to ADC input capacitors (≥1000pF) without series isolation resistors or external compensation networks.
Is LM6144BIM pin-compatible with other LM614x variants?
LM6144BIM shares identical pinout and SOIC-14 packaging with all LM6144 variants (e.g., LM6144AIM, LM6144BIN), including same pin functions and thermal pad layout. However, performance parameters differ between 'A' and 'B' grade versions (e.g., VOS, CMRR), so direct substitution requires verification against system accuracy requirements.
LM6144BIM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
LM6144BIM FAQ
1.How can I place an order for LM6144BIM through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6144BIM 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 LM6144BIM reliable?
The price and inventory of LM6144BIM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6144BIM is usually 5 days.
3.What payment methods are accepted for LM6144BIM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6144BIM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6144BIM?
LM6144BIM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6144BIM 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 LM6144BIM?
For technical support, including LM6144BIM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6144BIM requirements.
6.How does Aetrix verify that LM6144BIM is sourced from the original manufacturer or authorized distributors?
All LM6144BIM 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 LM6144BIM meets industry standards.
7.What is the process for return or replacement of LM6144BIM?
All LM6144BIM units undergo pre-shipment inspection (PSI). If there is an issue with LM6144BIM, 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 LM6144BIM part is unused and in its original packaging.
Return procedure for LM6144BIM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM6144BIM Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
-
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
-
MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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