My Inquiry
My Account
Texas Instruments LMC6084IMX/NOPB
- Part No.:
- LMC6084IMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC6084IMX/NOPB.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,861
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMC6084IMX/NOPB from Texas Instruments is a precision quad CMOS operational amplifier optimized for ultra-low-input-bias-current, single-supply instrumentation circuits. It delivers 150 μV typical offset voltage, 10 fA input bias current, rail-to-rail output swing within 20 mV of supply rails (at 2 kΩ), and 123 dB open-loop gain - enabling high-accuracy signal conditioning in photodiode preamplifiers, medical transducer interfaces, and DAC output buffers.
For engineers reviewing the LMC6084IMX/NOPB datasheet, LMC6084IMX/NOPB pinout, LMC6084IMX/NOPB application, or LMC6084IMX/NOPB equivalent, key selection criteria include verified input bias current stability over temperature, guaranteed rail-to-rail output drive into 2 kΩ, common-mode input range extending to V–, PSRR >75 dB, and SOIC-14 package compatibility with high-impedance PCB layout requirements.
Technical Context
The LMC6084IMX/NOPB employs a proprietary CMOS input stage with guarded differential pair topology, delivering sub-picoampere input bias current while maintaining stable operation across –40°C to +85°C. Its output stage uses complementary push-pull architecture enabling true rail-to-rail swing under load without phase reversal.
It supports single-supply operation from 4.5 V to 15.5 V (or dual ±2.25 V to ±7.75 V), features input common-mode range including V–, and achieves 1.3 MHz gain-bandwidth product with 0.8–1.5 V/µs slew rate - balancing precision, speed, and low-power suitability for battery-operated sensor front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset voltage | ±150 μV typical - enables <1 mV error in 10 V full-scale precision measurement systems without trimming |
| Input bias current | 10 fA typical at 25°C - preserves signal integrity in >1 TΩ source impedance applications (e.g., piezoelectric sensors) |
| Supply range | 4.5 V to 15.5 V single supply - supports direct interfacing with 5 V and 12 V industrial rails and battery-powered designs |
| Output swing | Within 20 mV of V+ and V– at 2 kΩ - delivers >99% dynamic range utilization in single-supply data acquisition |
| Open-loop gain | 123 dB (≈1.4 M V/V) at 2 kΩ - ensures <0.001% gain error in unity-gain buffer and high-precision amplification |
| Gain bandwidth | 1.3 MHz - supports stable closed-loop operation up to ~100 kHz at G = 10 without external compensation |
| PSRR | 85 dB (positive), 94 dB (negative) - rejects supply ripple in noisy embedded environments without additional filtering |
Pinout & Package
LMC6084IMX/NOPB is housed in a 14-pin SOIC (D package) with exposed pad not electrically connected. The device integrates four independent amplifiers sharing common V+ (Pin 4) and V– (Pin 11) supply terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | OUT A/B/C/D | Amplifier output channels A through D - each capable of sourcing/sinking ≥16 mA into 2 kΩ loads |
| 2, 6, 9, 13 | –IN A/B/C/D | Inverting inputs - high-impedance CMOS nodes requiring guard ring layout to preserve 10 fA bias current spec |
| 3, 5, 10, 12 | +IN A/B/C/D | Noninverting inputs - accept common-mode voltages down to V– (0 V in single supply) with no phase reversal |
| 4 | V+ | Positive supply rail - must be decoupled with ≥0.1 μF ceramic capacitor near pin to maintain PSRR and stability |
| 11 | V– | Negative supply rail - serves as reference ground in single-supply configurations; connects to system GND |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers usable output within 20 mV of both supply rails at 2 kΩ - eliminates level-shifting circuitry in single-supply systems |
| Ultra-low input bias current | 10 fA typical enables accurate amplification of nanoamp-level photodiode or piezoelectric transducer currents |
| Input common-mode range includes V– | Accepts signals down to ground in single-supply mode - simplifies sensor interfacing without negative bias generation |
| High open-loop gain | 123 dB ensures minimal gain error in precision instrumentation amplifier topologies using external matched resistors |
| Improved latch-up immunity | Robust CMOS process design prevents destructive latch-up during overvoltage transients on inputs or supplies |
Applications
| Photodiode Preamp | Medical Transducer Interface |
|---|---|
Use Scenario: Amplifying weak current from silicon photodiodes in pulse oximetry or spectroscopy systems. IC Role / Device Role / Timing Role: Transimpedance amplifier with guarded input and low-noise feedback network. Use Value: 10 fA input bias current minimizes dark current error; rail-to-rail output maximizes ADC dynamic range utilization. |
Use Scenario: Conditioning low-level signals from ECG electrodes or pressure sensors in portable diagnostic devices. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer with ultra-high input impedance. Use Value: Input common-mode range to V– enables direct connection to electrode-sensed biopotentials referenced to patient ground. |
| DAC Output Buffer | Piezoelectric Charge Amplifier |
Use Scenario: Driving analog outputs of precision 16-bit DACs in industrial control modules. IC Role / Device Role / Timing Role: Unity-gain voltage follower isolating DAC output from capacitive loads. Use Value: 123 dB open-loop gain ensures <0.001% gain error; 1.3 MHz GBW supports settling in <1 µs for step changes. |
Use Scenario: Converting high-impedance charge output of accelerometers or knock sensors into low-impedance voltage. IC Role / Device Role / Timing Role: Integrator with femtoampere input leakage and low drift for stable baseline retention. Use Value: ±150 μV offset voltage and 1 μV/°C drift minimize thermal zero-shift in uncooled mechanical sensing environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2182IDR | Lower offset (±4 μV), higher quiescent current (580 μA/channel), 5.7 MHz GBW | Better DC accuracy but higher power; less suitable for battery-powered, ultra-low-leakage designs | Select when microvolt-level offset and 10 nV/√Hz noise dominate over input bias current and supply current constraints |
| ADA4522-4ARUZ | Zero-drift architecture, 2.5 μV max offset, 0.005 μV/°C drift, 3 MHz GBW, 1.2 mA IQ | Superior long-term DC stability but 100× higher input bias current (0.3 pA) and higher supply current | Prefer for metrology-grade applications where drift dominates; avoid where femtoampere input leakage is mandatory |
Compared with OPA2182IDR and ADA4522-4ARUZ, the LMC6084IMX/NOPB uniquely balances femtoampere input bias current, rail-to-rail output, and sub-milliwatt per-channel consumption - making it irreplaceable in photodiode, piezoelectric, and high-impedance electrochemical sensor front-ends where leakage current directly limits resolution.
Availability
LMC6084IMX/NOPB is available at Aetrix Electronics and suitable for medical instrumentation, industrial sensor signal chains, and portable test equipment requiring stable component supply with full traceability and extended lifecycle support.
Supply support for LMC6084IMX/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 decades of heritage in precision op amp design and manufacturing excellence.
The LMC608x family was engineered specifically for ultra-high-impedance, low-leakage signal conditioning in battery-powered and medical-grade instrumentation - prioritizing femtoampere input bias, rail-to-rail output, and robust single-supply operation.
FAQ
What is the maximum supply voltage for LMC6084IMX/NOPB in single-supply operation?
The LMC6084IMX/NOPB supports single-supply operation up to 15.5 V, with absolute maximum rating of 16 V. Operation beyond 15.5 V risks exceeding recommended conditions and may degrade long-term reliability, especially when sourcing output current into V+.
Does LMC6084IMX/NOPB support true rail-to-rail input common-mode range?
The LMC6084IMX/NOPB input common-mode range extends to V– (including ground in single-supply mode) but does not reach V+. Its specified common-mode range is (V–) to (V+) – 1.9 V at 25°C - meaning it accepts inputs down to V– but not all the way to V+.
Can LMC6084IMX/NOPB drive capacitive loads directly?
LMC6084IMX/NOPB is not optimized for direct capacitive load driving. For loads >100 pF, external compensation (e.g., series resistor + feedback capacitor or pull-up resistor to V+) is required to maintain phase margin and prevent oscillation, as documented in TI's application notes.
What is the typical input offset voltage drift of LMC6084IMX/NOPB over temperature?
The LMC6084IMX/NOPB exhibits a typical input offset voltage drift of 1 μV/°C across the full operating range of –40°C to +85°C, ensuring minimal zero-point shift in thermally varying environments such as portable medical or field-deployed instrumentation.
Is LMC6084IMX/NOPB pin-compatible with other LMC608x variants?
No - LMC6084IMX/NOPB (SOIC-14, quad) is not pin-compatible with LMC6082 (SOIC-8, dual) or LMC6081 (SOIC-8, single). Each variant has distinct pin counts and channel mappings; PCB layout must be designed specifically for the LMC6084IMX/NOPB's 14-pin SOIC footprint and channel assignment.
LMC6084IMX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMC®
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- Push-Pull, Rail-to-Rail
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 1.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.01 pA
- Voltage - Input Offset:
- 150 µV
- Current - Supply:
- 2.2mA (x4 Channels)
- Current - Output / Channel:
- 34 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 15.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LMC6084IMX/NOPB FAQ
1.How can I place an order for LMC6084IMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6084IMX/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 LMC6084IMX/NOPB reliable?
The price and inventory of LMC6084IMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6084IMX/NOPB is usually 5 days.
3.What payment methods are accepted for LMC6084IMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6084IMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6084IMX/NOPB?
LMC6084IMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6084IMX/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 LMC6084IMX/NOPB?
For technical support, including LMC6084IMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6084IMX/NOPB requirements.
6.How does Aetrix verify that LMC6084IMX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC6084IMX/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 LMC6084IMX/NOPB meets industry standards.
7.What is the process for return or replacement of LMC6084IMX/NOPB?
All LMC6084IMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC6084IMX/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 LMC6084IMX/NOPB part is unused and in its original packaging.
Return procedure for LMC6084IMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMC6084IMX/NOPB 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…
