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Texas Instruments LMC6035IMX/NOPB
- Part No.:
- LMC6035IMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC6035IMX/NOPB.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,932
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Product details
Overview
LMC6035IMX/NOPB from Texas Instruments is a dual-channel, rail-to-rail output CMOS operational amplifier optimized for ultra-low-power, single-supply operation down to 2.0V. It delivers 20 fA input bias current, 126 dB open-loop gain, and rail-to-rail swing within 200 mV of either rail at 2.7V/600Ω - enabling high-impedance buffering in battery-powered medical sensors and portable instrumentation.
For engineers reviewing the LMC6035IMX/NOPB datasheet, LMC6035IMX/NOPB pinout, LMC6035IMX/NOPB application, or LMC6035IMX/NOPB equivalent, key selection criteria include femtoampere input leakage, 2.7V–15.5V supply flexibility, 600Ω load drive capability, and DSBGA-8 (YAF/YZR) package compatibility with space-constrained PCB layouts.
Technical Context
The LMC6035IMX/NOPB integrates two independent CMOS op-amp channels sharing a common 2.0V–15.5V single-supply rail, with input common-mode range extending to –0.1V at 2.7V supply and output swing limited only by 200 mV headroom into 600Ω. Its ultra-low input current stems from CMOS input stage architecture, eliminating BJT leakage paths and enabling stable DC coupling in high-Z sensor interfaces.
Each channel features fully differential input topology, unity-gain stable compensation, and output stage designed for symmetrical sourcing/sinking into resistive and moderate capacitive loads - validated up to 10 pF with series-R + feedback-C stabilization per TI AN-1112.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Bias Current | 20 fA typical - enables use of >10 MΩ feedback networks without significant offset drift in precision sensor front-ends |
| Supply Voltage Range | 2.0 V to 15.5 V - supports direct operation from 2-cell NiMH (2.4 V) or 3-cell alkaline (4.5 V) batteries without regulation |
| Output Swing (600Ω) | 200 mV from rails at 2.7 V - preserves >92% dynamic range in low-voltage audio and signal conditioning circuits |
| Open-Loop Gain | 126 dB - ensures <10 µV error in closed-loop gain-of-100 configurations with 10 kΩ feedback |
| Gain Bandwidth Product | 1.4 MHz - supports stable unity-gain buffer operation up to ~100 kHz with 600Ω load |
| Total Harmonic Distortion | 0.01% at 10 kHz - meets audio-grade linearity requirements in battery-powered transducer interfaces |
| Input Common-Mode Range | –0.1 V to +2.3 V at 2.7 V supply - allows direct connection to grounded-sensor outputs in single-supply systems |
Pinout & Package
LMC6035IMX/NOPB is packaged in an 8-bump DSBGA (chip-scale) package with ball pitch of 0.5 mm and footprint compatible with YAF and YZR variants. The package uses micro SMD technology and requires bump-side-down mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| C1 | OUT A | Output of Channel A - drives loads up to 600Ω with rail-to-rail swing; requires external 50–100Ω series resistor for >10 pF capacitive loads |
| A1 | OUT B | Output of Channel B - independently buffered; shares same supply rails and thermal characteristics as OUT A |
| C2 | –IN A | Inverting input of Channel A - high-impedance node (RIN > 10 TΩ); sensitive to PCB leakage and guarding requirements |
| A2 | –IN B | Inverting input of Channel B - electrically isolated from Channel A; no crosstalk above –130 dB at 1 kHz |
| C3 | +IN A | Noninverting input of Channel A - extends common-mode range to –0.1 V below V–, enabling ground-referenced sensor inputs |
| A3 | +IN B | Noninverting input of Channel B - identical electrical specification to +IN A; supports dual-channel differential sensing |
| B3 | V– | Negative supply terminal - connected to system ground in single-supply configurations; must be decoupled with 0.1 µF ceramic capacitor |
| B1 | V+ | Positive supply terminal - accepts 2.0–15.5 V; quiescent current scales linearly from 0.65 mA (2.7 V) to 1.6 mA (15 V) |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing into 600Ω | Enables full utilization of supply voltage in low-voltage systems (e.g., 2.7 V), reducing need for level-shifting or charge-pump rails |
| 20 fA input bias current (typ) | Permits use of >1 GΩ feedback resistors in active filters without measurable DC error accumulation over time |
| Specified performance at 2.7V, 3V, 5V, 15V | Eliminates re-characterization effort across battery chemistries and power architectures - from coin cells to industrial rails |
| –40°C to +85°C operating junction temperature | Validated for continuous operation in portable medical devices and industrial handhelds without derating |
| DSBGA-8 package (0.87 mm × 0.87 mm) | Reduces PCB area by >70% vs SOIC-8; compatible with automated optical inspection and fine-pitch reflow profiles |
Applications
| Medical Sensor Front-End | Battery-Powered Active Filter |
|---|---|
Use Scenario: Amplifying output of pH electrode or ECG dry electrode with source impedance >100 MΩ and DC-coupled signal path. IC Role / Device Role / Timing Role: High-impedance buffer and gain stage; dual-channel configuration used for differential electrode pair amplification. Use Value: 20 fA input bias current prevents electrode polarization drift; rail-to-rail output preserves full dynamic range at 3.0 V supply from Li-ion cell. |
Use Scenario: Implementing 2-pole Butterworth low-pass filter (fc = 3 kHz) in cordless phone baseband path with minimal power draw. IC Role / Device Role / Timing Role: Active filter core in Sallen-Key topology; one channel used per pole to maintain phase coherence. Use Value: Ultra-low IB allows 8.4 kΩ resistors and 4.7 nF capacitors - cutting total filter power to <100 µW while maintaining THD <0.01%. |
| Portable Instrumentation Input Stage | Low-Voltage Differential Driver |
Use Scenario: Signal conditioning for handheld multimeter input multiplexer with 10 MΩ input resistance and auto-zero calibration. IC Role / Device Role / Timing Role: Precision buffer isolating multiplexer switches from meter ADC; second channel used for reference buffer. Use Value: 126 dB open-loop gain ensures <1 µV gain error over temperature; 2.0 V minimum supply allows operation during battery end-of-life. |
Use Scenario: Driving 600 Ω audio transformer in telephone line interface with ±2 V differential output swing from 3 V supply. IC Role / Device Role / Timing Role: Dual-channel inverting/non-inverting driver generating complementary signals for transformer isolation. Use Value: 200 mV rail headroom at 600 Ω enables >3.6 Vpp differential output - exceeding industry standard POTS line requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, low-input-current op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC27L2CDR | Higher input bias current (10 pA typ), lower GBW (1.7 MHz), SOIC-8 only | Limited to >100 kΩ source impedances; unsuitable for pH or piezoelectric sensors | Select when cost sensitivity outweighs femtoampere leakage requirement and DSBGA footprint is not needed |
| OPA2313IDR | Lower quiescent current (50 µA/ch), wider supply range (1.8–5.5 V), but 100 pA input bias current | Optimized for sub-2 V battery systems; lacks 15 V tolerance and 600 Ω drive capability | Prefer for ultra-low-power wearables where 2.7 V minimum supply is not required and 600 Ω loading is absent |
Compared with TLC27L2CDR and OPA2313IDR, LMC6035IMX/NOPB uniquely combines femtoampere input leakage, 600 Ω load drive at 2.7 V, and 15.5 V absolute maximum rating - making it irreplaceable in high-precision, wide-supply-range, space-constrained analog front-ends.
Availability
LMC6035IMX/NOPB is available at Aetrix Electronics and suitable for medical sensor front-ends, battery-powered active filters, and portable instrumentation requiring stable component supply across extended product lifecycles.
Supply support for LMC6035IMX/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 company designing analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LMC603x family was engineered specifically for ultra-low-leakage, single-supply operation in portable and medical instrumentation - prioritizing femtoampere input bias, rail-to-rail output, and chip-scale packaging without sacrificing AC performance.
FAQ
What is the minimum supply voltage for reliable operation of the LMC6035IMX/NOPB?
The LMC6035IMX/NOPB is specified for continuous operation down to 2.0 V, with guaranteed performance including rail-to-rail output swing and 20 fA input bias current. At 2.0 V, output swing degrades to ~300 mV from rails into 600 Ω, but functional operation remains valid - supporting end-of-life battery detection in 2-cell NiMH systems.
Does the LMC6035IMX/NOPB support true rail-to-rail input common-mode range?
No - the LMC6035IMX/NOPB supports rail-to-rail *output* swing, but its input common-mode range is limited to –0.1 V to +2.3 V at 2.7 V supply. This allows grounding the inverting input while keeping the noninverting input within spec, but does not extend fully to V+ or V– rails on both inputs simultaneously.
Can the LMC6035IMX/NOPB drive capacitive loads without oscillation?
The LMC6035IMX/NOPB is not inherently stable into pure capacitive loads >10 pF. As documented in TI's AN-1112, stability requires either a 50–100 Ω series resistor at the output plus 5–10 pF feedback capacitor, or a pullup resistor to V+ for loads >100 pF. Uncompensated 100 pF loads cause heavy ringing and potential oscillation.
Is the LMC6035IMX/NOPB pin-compatible with other dual op-amps in DSBGA-8 packages?
No - the LMC6035IMX/NOPB uses a proprietary 8-bump DSBGA layout (YAF/YZR) with non-standard pin mapping (e.g., V+ at B1, V– at B3). It is not pin-compatible with generic DSBGA-8 op-amps such as OPA2313 or TLV2372, which use different bump assignments and thermal pad configurations.
What is the thermal resistance (RθJA) of the LMC6035IMX/NOPB in its DSBGA package?
The LMC6035IMX/NOPB in YAF/YZR DSBGA-8 package has a junction-to-ambient thermal resistance (RθJA) of 93.8°C/W (YZR) or 103.1°C/W (YAF), measured on a 2-layer JEDEC-standard board. This value assumes standard solder mask-defined copper pour and no internal plane layers - actual board layout significantly affects real-world thermal performance.
LMC6035IMX/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:
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LMC6035IMX/NOPB FAQ
1.How can I place an order for LMC6035IMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6035IMX/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 LMC6035IMX/NOPB reliable?
The price and inventory of LMC6035IMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6035IMX/NOPB is usually 5 days.
3.What payment methods are accepted for LMC6035IMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6035IMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6035IMX/NOPB?
LMC6035IMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6035IMX/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 LMC6035IMX/NOPB?
For technical support, including LMC6035IMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6035IMX/NOPB requirements.
6.How does Aetrix verify that LMC6035IMX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC6035IMX/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 LMC6035IMX/NOPB meets industry standards.
7.What is the process for return or replacement of LMC6035IMX/NOPB?
All LMC6035IMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC6035IMX/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 LMC6035IMX/NOPB part is unused and in its original packaging.
Return procedure for LMC6035IMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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