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Texas Instruments LMC6061IM
- Part No.:
- LMC6061IM
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC6061IM.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,152
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Product details
Overview
LMC6061IM from Texas Instruments is a precision CMOS single micropower operational amplifier optimized for battery-powered instrumentation. It delivers 100 µV typical input offset voltage, 20 µA supply current, rail-to-rail output swing within 10 mV of rails (at 100 kΩ load), ultra-low 10 fA input bias current, and operates from 4.5 V to 15 V single supply - enabling high-accuracy signal conditioning in hand-held medical and analytical instruments.
For engineers reviewing the LMC6061IM datasheet, LMC6061IM pinout, LMC6061IM application, or LMC6061IM equivalent, key selection considerations include its guaranteed input common-mode range extending to V−, 140 dB open-loop gain, ±2.5 V input voltage noise at 1 kHz, and SOIC-8 packaging with RoHS-compliant CU SN finish and Level-1 moisture sensitivity rating.
Technical Context
The LMC6061IM uses TI's double-Poly Silicon-Gate CMOS process to achieve ultra-low input bias current and rail-to-rail output without a conventional push-pull buffer. Its internal integrator-based output stage provides both low output impedance and high gain, supported by feed-forward compensation for stability across wide operating conditions.
This architecture enables stable operation driving capacitive loads when paired with external pull-up resistors or RC compensation networks, and supports precision DC-coupled topologies including instrumentation amplifiers, charge amplifiers for piezoelectric transducers, and photodiode preamplifiers requiring sub-picoampere leakage control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 100 µV typical - enables <0.01% gain error in 100× instrumentation amplifier configurations at room temperature |
| Supply Current | 20 µA at 5 V - allows >1-year battery life in coin-cell–powered portable sensors |
| Input Bias Current | 10 fA typical - preserves signal integrity in >1014 Ω transducer interfaces (e.g., pH electrodes) |
| Output Swing | Within 10 mV of V+ and V− at 100 kΩ - supports full dynamic range utilization in single-supply data acquisition |
| Open-Loop Gain | 140 dB - ensures <1 ppm gain error in precision integrators and reference buffers |
| Input Common-Mode Range | Includes V− (ground) - permits direct sensing of signals referenced to system ground without level-shifting circuitry |
| Slew Rate | 35 V/ms typical - supports accurate reproduction of ≤10 kHz step inputs in low-power sensor front-ends |
| Gain-Bandwidth Product | 100 kHz - defines usable closed-loop bandwidth for unity-gain stable configurations with low-frequency precision |
Pinout & Package
LMC6061IM is housed in an 8-pin SOIC package (Package Drawing D), with standard industry footprint (5.3 mm × 6.2 mm), gull-wing leads, and RoHS-compliant matte tin (CU SN) plating. Thermal resistance θJA = 193°C/W when soldered to a standard PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Inverting Input (−) | Differential input node | Accepts feedback network connection; ultra-high impedance (RIN >10 TΩ) minimizes loading on high-Z sources |
| Non-Inverting Input (+) | Differential input node | Direct connection point for reference or sensor signals; common-mode range includes V− |
| Output | Amplified signal source | Rail-to-rail swing capability enables full-scale ADC interfacing without level-shifting components |
| V− | Negative supply terminal | Ground-referenced operation enabled; must be connected to system ground or negative rail |
| V+ | Positive supply terminal | Accepts 4.5 V to 15 V single supply; internal ESD protection rated to 2 kV HBM |
| NC | No connect | Pin 6 is internally unused; must remain unconnected per TI design guidelines |
| NC | No connect | Pin 7 is internally unused; floating connection avoids parasitic coupling paths |
| NC | No connect | Pin 1 is internally unused; left unconnected to prevent unintended latchup triggers |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full dynamic range in single-supply systems - eliminates need for dual-rail generation in portable instrumentation |
| Ultra-low input bias current (10 fA) | Enables stable DC coupling to high-impedance sources like glass pH electrodes and piezoelectric sensors without drift-inducing leakage |
| Improved latchup immunity | Withstands 100 mA surge on I/O pins - enhances reliability in noisy industrial environments with transient coupling |
| Stability with capacitive loads | Supports direct driving of ≥100 pF loads using external pull-up resistor or RC compensation - reduces external component count in filter stages |
| Input common-mode range includes V− | Allows ground-referenced signal acquisition without input biasing networks - simplifies PCB layout and reduces component cost |
Applications
| Instrumentation Amplifier | Photodiode Preamplifier |
|---|---|
Use Scenario: Precision measurement of bridge-based pressure or strain sensors in handheld diagnostic tools. IC Role / Device Role / Timing Role: Core gain-stage op-amp in 3-op-amp instrumentation topology, providing >1014 Ω input resistance and <2.5 µV/°C offset drift. Use Value: Enables 0.01% gain accuracy at AV = 100 while maintaining CMRR >85 dB with 1 kΩ bridge imbalance - critical for clinical-grade repeatability. | Use Scenario: Low-noise current-to-voltage conversion for infrared gas detection modules. IC Role / Device Role / Timing Role: Transimpedance amplifier with guarded input traces, leveraging 10 fA bias current to minimize dark-current error. Use Value: Achieves <100 fA total input current error over temperature - extends detection limit to sub-ppm gas concentrations in battery-operated field analyzers. |
| Charge Amplifier | Hand-held Analytic Instrument |
Use Scenario: Signal conditioning for piezoelectric accelerometers in portable vibration monitors. IC Role / Device Role / Timing Role: Integrator-based charge amplifier with ultra-high input impedance and low drift, configured with guarded feedback capacitor. Use Value: Maintains <0.5% amplitude error from 0.1 Hz to 10 kHz while consuming <25 µW - enables 6-month operation on AA batteries. | Use Scenario: Front-end analog signal chain in portable pH meters and ion-selective electrode systems. IC Role / Device Role / Timing Role: High-impedance buffer and precision amplifier for glass electrode outputs, operating from 3.3 V Li-ion supply. Use Value: Delivers <1 mV measurement uncertainty over 0–14 pH range with no zero-drift calibration required between daily use cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision micropower operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC6061IMX/NOPB | Same die, tape-and-reel packaging (2500-unit reel); identical electrical specs and SOIC-8 footprint | No functional difference; selected for automated SMT assembly vs. tube-based LMC6061IM | Choose LMC6061IMX/NOPB for volume production; LMC6061IM for prototyping or low-volume builds |
| LMC6081IM | Higher slew rate (120 V/ms), 3× higher supply current (60 µA), same 10 fA bias current and rail-to-rail output | Better suited for higher-bandwidth sensor interfaces (e.g., ultrasonic transducers) where speed outweighs power budget constraints | Select LMC6081IM only when >100 kHz closed-loop bandwidth is required; otherwise LMC6061IM offers superior power efficiency |
Compared with LMC6061IMX/NOPB, the LMC6061IM offers identical performance in tube packaging for manual or semi-automated placement, while the LMC6081IM trades 40 µA extra quiescent current for triple the slew rate - making it viable only when dynamic response dominates battery life requirements.
Availability
LMC6061IM is available at Aetrix Electronics and suitable for hand-held medical instrumentation, battery-powered environmental sensors, and precision transducer signal conditioning requiring stable component supply across multi-year product lifecycles.
Supply support for LMC6061IM 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 innovation in precision analog ICs.
The LMC6061IM belongs to TI's LMC606x micropower op-amp family, engineered specifically for ultra-low-power, high-impedance sensor interface applications in portable and battery-constrained systems.
FAQ
What is the maximum supply voltage for the LMC6061IM?
The LMC6061IM has an absolute maximum supply voltage of 16 V (V+ − V−), with recommended operating range from 4.5 V to 15.5 V. Exceeding 15.5 V risks exceeding junction temperature limits under load, especially when sourcing >10 mA output current. TI specifies derating above 125°C junction temperature, and continuous operation above 15.5 V voids warranty compliance per SNOS648D Section 6.1.
Does the LMC6061IM support true rail-to-rail input operation?
No, the LMC6061IM does not support rail-to-rail input common-mode range. Its input common-mode voltage range extends to V− (ground) but only up to V+ − 2.3 V at 25°C. For example, with a 5 V supply, the maximum allowable input voltage is 2.7 V. This limitation is documented in the DC Electrical Characteristics table (VCM parameter) and confirmed across all grade variants (LMC6061I/AM/AI).
Can the LMC6061IM drive a 1000 pF capacitive load directly?
The LMC6061IM cannot reliably drive 1000 pF directly without external compensation. As stated in the Applications Hints section, direct capacitive loading degrades phase margin and causes oscillation. Stable operation requires either a pull-up resistor to V+ (≥10 µA current), series isolation resistor + shunt capacitor (Figure 25), or guard-ring PCB layout. TI's typical curves (Figures 21–23) show instability onset above ~200 pF with no compensation.
What is the thermal resistance (θJA) of the LMC6061IM in SOIC-8 package?
The LMC6061IM in SOIC-8 package (Drawing D) has a thermal resistance θJA of 193°C/W when soldered to a standard FR-4 PCB with JEDEC-standard copper area. This value assumes no additional heatsinking and is specified in the Operating Ratings table. Derating is required above 85°C ambient per PD = (TJ(Max) − TA)/θJA, with TJ(Max) = 150°C.
Is the LMC6061IM pin-compatible with the LMC6062 or LMC6064?
No, the LMC6061IM is not pin-compatible with the LMC6062 (dual) or LMC6064 (quad). While all three belong to the same LMC606x family and share identical per-amplifier specifications, the LMC6061IM uses an 8-pin SOIC package with four unused pins (1, 6, 7, and one NC pin), whereas the LMC6062 uses an 8-pin SOIC with fully utilized pins for two amplifiers, and the LMC6064 uses a 14-pin SOIC. Pin mapping and pin count differ fundamentally across variants.
LMC6061IM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 26 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:
- 8-SOIC
LMC6061IM FAQ
1.How can I place an order for LMC6061IM through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6061IM 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 LMC6061IM reliable?
The price and inventory of LMC6061IM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6061IM is usually 5 days.
3.What payment methods are accepted for LMC6061IM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6061IM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6061IM?
LMC6061IM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6061IM 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 LMC6061IM?
For technical support, including LMC6061IM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6061IM requirements.
6.How does Aetrix verify that LMC6061IM is sourced from the original manufacturer or authorized distributors?
All LMC6061IM 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 LMC6061IM meets industry standards.
7.What is the process for return or replacement of LMC6061IM?
All LMC6061IM units undergo pre-shipment inspection (PSI). If there is an issue with LMC6061IM, 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 LMC6061IM part is unused and in its original packaging.
Return procedure for LMC6061IM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMC6061IM Tags
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