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Texas Instruments LMC6035IMXQ1
- Part No.:
- LMC6035IMXQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC6035IMXQ1.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,422
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Product details
Overview
LMC6035IMXQ1 from Texas Instruments is an AEC-Q100 Grade 3 qualified, single-supply CMOS operational amplifier optimized for automotive applications. It delivers rail-to-rail output swing into 600Ω loads at 2.7V, features ultra-low input bias current (20fA), 126dB open-loop voltage gain, and operates across 2.0V–15.5V supply range - enabling high-impedance buffering in battery-powered vehicle subsystems.
For engineers reviewing the LMC6035IMXQ1 datasheet, LMC6035IMXQ1 pinout, LMC6035IMXQ1 application, or LMC6035IMXQ1 equivalent, key selection criteria include its femtoampere input leakage, guaranteed rail-to-rail performance at 2.7V with 600Ω load, AEC-Q100 Grade 3 qualification (–40°C to +85°C), low THD (0.01% at 10kHz), and SOIC-8 packaging compatible with automotive PCB layouts.
Technical Context
The LMC6035IMXQ1 employs a CMOS input stage delivering 20fA typical input bias current and >10TΩ input resistance, enabling direct interfacing with high-impedance sensors and passive filter networks. Its rail-to-rail output stage maintains 200mV headroom from either rail at 2.7V/600Ω, while sustaining 126dB DC open-loop gain and 1.4MHz gain-bandwidth product under same conditions.
Designed for single-supply operation down to 2.0V, the device exhibits stable performance across 2.7V, 3V, 5V, and 15V supplies, with specified behavior for both 2kΩ and 600Ω loads. Input common-mode range extends from –0.1V to +2.3V at 2.7V supply, supporting ground-referenced inputs in low-voltage automotive domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0V to 15.5V - enables direct integration into 3.3V, 5V, and 12V automotive subsystems without level-shifting. |
| Input Bias Current | 20fA typical - permits use of MΩ-range resistors and nF-range capacitors in active filters without signal degradation. |
| Rail-to-Rail Output | 200mV from rails at 2.7V/600Ω - ensures full dynamic range utilization in low-voltage sensor signal conditioning. |
| Open-Loop Gain | 126dB - provides high DC precision for closed-loop configurations like instrumentation amplifiers and precision buffers. |
| THD @ 10kHz | 0.01% - supports clean audio and communication signal paths in infotainment and telematics modules. |
| Gain-Bandwidth Product | 1.4MHz - sufficient for anti-aliasing, reconstruction, and control-loop compensation up to ~100kHz. |
| AEC-Q100 Grade | Grade 3 (–40°C to +85°C) - certified for passenger compartment and non-engine-bay automotive electronics. |
Pinout & Package
LMC6035IMXQ1 is housed in an 8-pin SOIC (D package), measuring 4.9mm × 6mm, with standard JEDEC MS-012AC footprint and gull-wing leads suitable for automated SMT assembly in automotive production.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT A | Output channel A | Delivers rail-to-rail amplified signal; drives 600Ω loads with ≤200mV headroom at 2.7V. |
| 2: –IN A | Inverting input channel A | Accepts differential or inverting configuration signals; biased at femtoampere-level leakage. |
| 3: +IN A | Noninverting input channel A | Supports high-Z sensor interfaces; common-mode range includes ground at 2.7V supply. |
| 4: V– | Negative supply | Ground reference in single-supply operation; must be connected to system GND or negative rail. |
| 5: +IN B | Noninverting input channel B | Enables dual-channel operation; identical electrical specs to channel A per datasheet. |
| 6: –IN B | Inverting input channel B | Supports independent second amplifier path; shares same ultra-low IB and CMVR as channel A. |
| 7: OUT B | Output channel B | Second rail-to-rail output; usable for differential drivers or dual-path signal processing. |
| 8: V+ | Positive supply | Accepts 2.0V–15.5V; powers both channels; PSRR ≥63dB over 5V–15V range. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 20fA typical - eliminates resistor-induced offset errors in high-Z pH, gas, or piezoelectric sensor front-ends. |
| Rail-to-rail output at low voltage | 200mV headroom at 2.7V/600Ω - preserves signal fidelity in 3.3V microcontroller ADC interfaces. |
| AEC-Q100 Grade 3 qualification | Validated for –40°C to +85°C ambient - meets reliability requirements for body control modules and HVAC systems. |
| Low distortion | 0.01% THD at 10kHz - enables accurate signal reproduction in automotive audio preamplifiers and CAN transceiver biasing. |
| Wide supply range | 2.0V–15.5V operation - supports direct connection to battery-sensed rails (e.g., 12V nominal with dropout) without regulators. |
Applications
| Automotive Cabin Sensors | Medical-Grade Telematics |
|---|---|
Use Scenario: Monitoring cabin CO₂, humidity, or volatile organic compounds using electrochemical or capacitive sensors with MΩ-level source impedance. IC Role / Device Role / Timing Role: High-impedance buffer and signal conditioner; preserves sensor signal integrity without loading. Use Value: 20fA input bias enables use of 10MΩ feedback resistors, reducing power consumption by >50% versus pA-level op amps. |
Use Scenario: Signal conditioning for ECG, pulse oximetry, or glucose monitoring modules embedded in connected vehicle health platforms. IC Role / Device Role / Timing Role: Precision front-end amplifier with rail-to-rail output driving 12-bit SAR ADCs in low-power wearable interfaces. Use Value: 2.7V rail-to-rail swing ensures full-scale utilization of 3.3V ADC references, improving SNR by 3.5dB over limited-swing alternatives. |
| Battery-Powered ADAS Modules | Active Filter Networks |
Use Scenario: Power management and sensor fusion in vision-based driver assistance systems operating from 12V battery with wide voltage transients. IC Role / Device Role / Timing Role: Supply-monitoring comparator input buffer and reference voltage stabilizer. Use Value: 2.0V minimum supply allows continued operation during cold-crank events where battery dips to 6V–8V. |
Use Scenario: 2nd-order Sallen-Key low-pass and high-pass filters in infotainment audio preprocessing and noise cancellation circuits. IC Role / Device Role / Timing Role: Unity-gain follower and gain stage in active filter topologies requiring minimal phase shift and low THD. Use Value: 1.4MHz GBW and 0.01% THD support 3kHz cutoff filters with <0.1dB passband ripple and <60dB stopband attenuation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC6041QDRQ1 | Single-channel variant with identical specs (20fA IB, 126dB AVOL, AEC-Q100 Grade 3), but rated only to 12V max supply. | Limited to ≤12V systems; unsuitable for 15.5V-rated automotive subsystems like lighting control or powertrain diagnostics. | Select when supply stays ≤12V and board space requires single-channel footprint. |
| TSV912IQ2T | Higher input bias current (1pA), lower GBW (8MHz), no AEC-Q100 qualification; operates down to 1.5V. | Not automotive-qualified; better suited for consumer portable devices than safety-critical vehicle ECUs. | Choose only for non-automotive, cost-sensitive designs where 1pA IB suffices and qualification is unnecessary. |
Compared with LMC6035IMXQ1, LMC6041QDRQ1 offers identical performance within 12V systems but lacks 15.5V capability, while TSV912IQ2T trades automotive qualification and femtoampere precision for wider supply flexibility and higher speed - making LMC6035IMXQ1 the sole choice for AEC-Q100-compliant, ultra-high-impedance signal chains.
Availability
LMC6035IMXQ1 is available at Aetrix Electronics and suitable for automotive cabin sensing, medical-grade telematics, and battery-powered ADAS modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMC6035IMXQ1 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 automotive IC design expertise and ISO/TS 16949-certified manufacturing.
The LMC6035IMXQ1 belongs to TI's automotive-qualified precision op amp portfolio, engineered specifically for low-power, high-impedance signal conditioning in vehicle interior electronics, sensor interfaces, and safety-critical subsystems.
FAQ
What is the maximum supply voltage rating for LMC6035IMXQ1?
The LMC6035IMXQ1 has an absolute maximum supply voltage (VS = V+ – V–) of 16V, with recommended operation up to 15.5V. Exceeding 16V risks permanent damage per Absolute Maximum Ratings. The device is fully characterized from 2.0V to 15.5V, including rail-to-rail output performance at 15V with 2kΩ and 600Ω loads - critical for 12V automotive systems experiencing load-dump transients.
Does LMC6035IMXQ1 support true rail-to-rail input common-mode range?
No, LMC6035IMXQ1 does not support rail-to-rail input. At 2.7V supply, its input common-mode voltage range is specified from –0.1V to +2.3V - meaning it accepts signals slightly below ground but only up to 2.3V, not the full 2.7V rail. This limitation is intentional to maintain CMRR ≥40dB and is documented in Section 5.5 of the datasheet. For ground-referenced inputs, this range is sufficient; for full-rail input, consider TI's LMP7721 or OPA320 series.
How does LMC6035IMXQ1 perform under capacitive load conditions?
LMC6035IMXQ1 can oscillate with capacitive loads >100pF in unity-gain configurations due to phase margin reduction. Per Section 7.1.1, stability is restored using a 50Ω–100Ω series resistor at the output plus a 5pF–10pF capacitor from inverting input to output. Alternatively, a pullup resistor to V+ (≥500μA current) improves capacitive-load response. These techniques are validated in Figure 7-1 and Figure 7-2 of the official datasheet for LMC6035IMXQ1.
Is LMC6035IMXQ1 pin-compatible with other members of the LMC603x-Q1 family?
Yes, LMC6035IMXQ1 (dual-channel) shares identical SOIC-8 pinout with LMC6032IMXQ1 (dual) and LMC6034IMXQ1 (quad), per Table 4-1. All variants use pins 1/7 for outputs, 2/6 for inverting inputs, 3/5 for noninverting inputs, and 4/8 for V–/V+. This allows drop-in replacement between dual and quad versions in layout-constrained automotive modules - provided channel count and thermal dissipation requirements align.
What is the guaranteed input offset voltage specification for LMC6035IMXQ1 over temperature?
LMC6035IMXQ1 guarantees a maximum input offset voltage of 6mV over the full AEC-Q100 Grade 3 temperature range (–40°C to +85°C), with typical value of 5mV at +25°C. Input offset drift is specified at 2.3µV/°C maximum across the same range. These parameters are measured per Section 5.5 and ensure predictable DC error in closed-loop configurations such as precision current sensing or thermistor signal conditioning in LMC6035IMXQ1-based designs.
LMC6035IMXQ1 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:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Differential, Rail-to-Rail
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 1.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.02 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 650µA (x2 Channels)
- Current - Output / Channel:
- 8 mA
- Voltage - Supply Span (Min):
- 2 V
- Voltage - Supply Span (Max):
- 15.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LMC6035IMXQ1 FAQ
1.How can I place an order for LMC6035IMXQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6035IMXQ1 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 LMC6035IMXQ1 reliable?
The price and inventory of LMC6035IMXQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6035IMXQ1 is usually 5 days.
3.What payment methods are accepted for LMC6035IMXQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6035IMXQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6035IMXQ1?
LMC6035IMXQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6035IMXQ1 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 LMC6035IMXQ1?
For technical support, including LMC6035IMXQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6035IMXQ1 requirements.
6.How does Aetrix verify that LMC6035IMXQ1 is sourced from the original manufacturer or authorized distributors?
All LMC6035IMXQ1 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 LMC6035IMXQ1 meets industry standards.
7.What is the process for return or replacement of LMC6035IMXQ1?
All LMC6035IMXQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LMC6035IMXQ1, 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 LMC6035IMXQ1 part is unused and in its original packaging.
Return procedure for LMC6035IMXQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMC6035IMXQ1 Tags
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