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Texas Instruments LMC6061IMX/NOPB
- Part No.:
- LMC6061IMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC6061IMX/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,510
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Product details
Overview
LMC6061IMX/NOPB from Texas Instruments (formerly National Semiconductor) is a precision single-channel CMOS micropower operational amplifier designed for ultra-low-input-bias-current, rail-to-rail output, single-supply operation. It delivers 100 µV max input offset voltage, 20 µA supply current, 10 fA input bias current, and rail-to-rail output swing within 10 mV of supply rails under 100 kΩ load - enabling high-accuracy signal conditioning in battery-powered medical sensors and portable instrumentation.
For engineers reviewing the LMC6061IMX/NOPB datasheet, LMC6061IMX/NOPB pinout, LMC6061IMX/NOPB application, or LMC6061IMX/NOPB equivalent, key selection criteria include guaranteed 140 dB open-loop gain, −55°C to +125°C extended temperature range (AM grade), input common-mode range extending to V−, and compatibility with photodiode preamplifier, charge amplifier, and true instrumentation amplifier topologies requiring sub-picoampere leakage control.
Technical Context
The LMC6061IMX/NOPB uses an internal integrator-based output stage instead of a conventional push-pull buffer, enabling rail-to-rail swing while maintaining low output impedance and high DC gain. Its double-Poly Silicon-Gate CMOS process ensures ultra-low input bias current and improved latchup immunity.
It supports stable operation with capacitive loads when paired with external compensation (e.g., pull-up resistor or RC network), and features feed-forward compensation to preserve phase margin across wide supply (4.5–15 V) and temperature (−55°C to +125°C) ranges - critical for single-supply sensor front-ends where ground-referenced inputs and minimal quiescent power are mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 15 V single supply - enables direct integration into 5 V or 12 V battery-powered systems without level-shifting. |
| Input Bias Current | 10 fA typical - preserves signal integrity in high-impedance transducer interfaces (e.g., piezoelectric sensors, pH electrodes). |
| Input Offset Voltage | 100 µV typical, 800 µV max (I-grade) - supports <0.01% gain accuracy in instrumentation amplifiers with 100× gain. |
| Open-Loop Gain | 140 dB typical - ensures <1 ppm error contribution in precision closed-loop configurations with ≥1000 V/V gain. |
| Output Swing | Within 10 mV of V+ and V− at 100 kΩ load - maximizes dynamic range in single-supply data acquisition with 0–5 V ADCs. |
| Gain-Bandwidth Product | 100 kHz - sufficient for DC-coupled sensor signal chains, integrators, and low-frequency active filters up to ~10 kHz. |
| Supply Current | 20 µA typical at 5 V - extends battery life beyond 10 years in 10 µA-sleep-cycle IoT sensor nodes. |
Pinout & Package
LMC6061IMX/NOPB is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package (TI package code M08A), surface-mount compatible with standard 1.27 mm pitch PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output | Amplified signal output; rail-to-rail swing capability enables full utilization of 0–5 V ADC input range. |
| 2 | Inverting Input (−) | High-impedance node; requires guarding to maintain <10 fA leakage in photodiode or charge amplifier applications. |
| 3 | Non-Inverting Input (+) | Ground-referenced input support allows direct connection to transducer outputs without level-shifting circuitry. |
| 4 | V− (Ground or Negative Supply) | Reference for single-supply operation; input common-mode range includes this pin, enabling true ground-sensing. |
| 5 | NC | No connect - internally unused; must remain unconnected per TI design guidelines. |
| 6 | NC | No connect - internally unused; must remain unconnected per TI design guidelines. |
| 7 | V+ (Positive Supply) | Primary power rail; supports 4.5–15 V operation; decoupling capacitor required within 1 cm for stability. |
| 8 | NC | No connect - internally unused; must remain unconnected per TI design guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Delivers >99.8% of supply voltage swing at 100 kΩ load - eliminates need for dual supplies in portable medical devices. |
| Input common-mode range includes V− | Accepts signals down to ground potential - enables direct interfacing with 0–V-output sensors (e.g., thermocouples, bridge transducers). |
| Ultra-low input bias current (10 fA) | Reduces voltage error across >1 GΩ feedback resistors - essential for femtoampere-level current-to-voltage conversion. |
| Feed-forward compensation architecture | Maintains ≥50° phase margin with 100 pF capacitive loads - simplifies layout in high-impedance PCB traces without external isolation. |
| Improved latchup immunity | Withstands 100 mA I/O surge current - enhances robustness in industrial environments with ESD-prone sensor cabling. |
Applications
| Photodiode Preamp | Charge Amplifier |
|---|---|
|
Use Scenario: Converting weak photocurrent from silicon photodiodes into measurable voltage in handheld spectrometers. IC Role / Device Role / Timing Role: Transimpedance amplifier with guarded input and ultra-low bias current to prevent signal loss across 1 GΩ feedback resistor. Use Value: 10 fA input bias current limits dark-current-induced offset to <1 µV, preserving sub-nW optical detection sensitivity. |
Use Scenario: Integrating charge from piezoelectric accelerometers in structural health monitoring nodes. IC Role / Device Role / Timing Role: High-gain integrator with rail-to-rail output swing to maximize dynamic range for ±5 V supply systems. Use Value: 140 dB open-loop gain ensures <0.001% integrator error over 10-second time constants, critical for low-frequency vibration analysis. |
| Hand-Held pH Probe | Single-Supply Instrumentation Amp |
|
Use Scenario: Signal conditioning for glass-electrode pH sensors in portable water quality analyzers. IC Role / Device Role / Timing Role: Buffer amplifier with input common-mode range including ground, enabling direct electrode connection without biasing networks. Use Value: Input common-mode range extending to V− eliminates need for external reference voltage, reducing BOM count by 2 passive components. |
Use Scenario: Building 3-op-amp instrumentation amplifiers for bridge-based pressure transducers in battery-powered wearables. IC Role / Device Role / Timing Role: Precision gain-stage amplifier with 100 µV offset and 85 dB CMRR at 12 V supply. Use Value: 800 µV max offset voltage at 85°C ensures <0.1% full-scale error in 100 mV/V bridge outputs, meeting ISO 13485 medical calibration requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision micropower op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC6062IMX/NOPB | Dual-channel version in same SOIC-8 package; identical specs per channel but higher total supply current (40 µA). | Required when two independent precision amplifiers are needed on same board (e.g., differential sensor pair). | Select LMC6062IMX/NOPB only if dual-channel functionality justifies 2× quiescent power and shared thermal environment. |
| OPA333AIDBVR | Zero-drift architecture; 2 µV max offset, 17 µA supply current, but 200 pA input bias current - 20,000× higher than LMC6061IMX/NOPB. | Better for DC-critical applications needing <1 µV drift/°C, but unsuitable for >100 MΩ source impedances. | Choose OPA333AIDBVR for ultra-low-offset DC measurement; retain LMC6061IMX/NOPB for femtoampere-level transducer interfacing. |
Compared with LMC6062IMX/NOPB and OPA333AIDBVR, the LMC6061IMX/NOPB uniquely balances femtoampere input bias current, rail-to-rail output, and single-supply ground-sensing capability - making it irreplaceable in photodiode, piezoelectric, and electrochemical sensor front-ends where leakage dominates error budgets.
Availability
LMC6061IMX/NOPB is available at Aetrix Electronics and suitable for battery-powered medical instrumentation, portable environmental sensors, and low-power industrial transducer interfaces requiring stable component supply across extended temperature ranges.
Supply support for LMC6061IMX/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 acquired National Semiconductor in 2011 and maintains full technical and manufacturing continuity for legacy precision analog products like the LMC6061 series.
The LMC6061 belongs to TI's micropower precision op-amp product line, engineered specifically for ultra-low-leakage, single-supply sensor signal conditioning in portable and energy-constrained systems.
FAQ
What is the maximum operating temperature range for LMC6061IMX/NOPB?
The LMC6061IMX/NOPB is rated for −40°C to +85°C (I-grade). For extended-range operation, the LMC6061AMJ/883 variant supports −55°C to +125°C. The IMX/NOPB suffix confirms commercial-grade SOIC packaging with tape-and-reel delivery, and all electrical specifications in the datasheet apply across its rated temperature range without derating.
Does LMC6061IMX/NOPB support true single-supply operation with input signals at ground potential?
Yes. The LMC6061IMX/NOPB features an input common-mode voltage range that explicitly includes V− (ground in single-supply configurations), allowing direct connection of 0 V-referenced transducers such as thermocouples or resistive bridge outputs without external biasing networks - a key enabler for simplified, low-power sensor front-ends.
Can LMC6061IMX/NOPB drive capacitive loads without oscillation?
The LMC6061IMX/NOPB is not unity-gain stable with direct capacitive loading. However, its feed-forward compensation architecture allows stable operation with up to 100 pF when combined with a 10 µA pull-up resistor to V+, or via RC compensation (e.g., Cf across Rf). TI's Application Hints (Figure 2 and 3) provide validated circuits for driving ADC input capacitance or long cables.
What is the significance of the "NOPB" suffix in LMC6061IMX/NOPB?
The "NOPB" suffix indicates lead-free (Pb-free) and RoHS-compliant construction. LMC6061IMX/NOPB uses matte-tin lead finish and meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3), requiring bake-before-reflow if exposed to ambient for >168 hours. This ensures compliance with global environmental regulations without performance trade-offs.
How does LMC6061IMX/NOPB compare to LMC6081 in terms of bandwidth and power trade-offs?
The LMC6061IMX/NOPB offers 100 kHz GBW and 20 µA supply current, optimized for ultra-low-power precision; the LMC6081 provides 1.3 MHz GBW and 120 µA supply current - a 13× speed increase at 6× higher quiescent power. Choose LMC6061IMX/NOPB for sub-100 kHz sensor conditioning where battery life is paramount; select LMC6081 only when faster settling (e.g., 10-bit ADC sampling at 100 kSPS) justifies the power penalty.
LMC6061IMX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.035V/µs
- Gain Bandwidth Product:
- 100 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.01 pA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 24µA
- Current - Output / Channel:
- -
- 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:
- 8-SOIC
LMC6061IMX/NOPB FAQ
1.How can I place an order for LMC6061IMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6061IMX/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 LMC6061IMX/NOPB reliable?
The price and inventory of LMC6061IMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6061IMX/NOPB is usually 5 days.
3.What payment methods are accepted for LMC6061IMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6061IMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6061IMX/NOPB?
LMC6061IMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6061IMX/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 LMC6061IMX/NOPB?
For technical support, including LMC6061IMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6061IMX/NOPB requirements.
6.How does Aetrix verify that LMC6061IMX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC6061IMX/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 LMC6061IMX/NOPB meets industry standards.
7.What is the process for return or replacement of LMC6061IMX/NOPB?
All LMC6061IMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC6061IMX/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 LMC6061IMX/NOPB part is unused and in its original packaging.
Return procedure for LMC6061IMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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