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Texas Instruments LMC6035IBPX
- Part No.:
- LMC6035IBPX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-VFBGA
- Datasheet:
-
LMC6035IBPX.pdf
- Description:
- IC CMOS 2 CIRCUIT 8DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,429
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Product details
Overview
LMC6035IBPX from Texas Instruments (formerly National Semiconductor) is a dual-channel, rail-to-rail output CMOS operational amplifier optimized for low-voltage, single-supply operation. It delivers 20 fA input bias current, 126 dB open-loop gain, and rail-to-rail swing within 200 mV of either rail at 2.7 V into 600 Ω - enabling high-impedance buffering and active filtering in battery-powered medical instrumentation and portable electronics.
For engineers reviewing the LMC6035IBPX datasheet, LMC6035IBPX pinout, LMC6035IBPX application, or LMC6035IBPX equivalent, key selection considerations include its guaranteed 2.7 V operation, ultra-low input current for high-R/high-C filter design, micro SMD package footprint, and performance stability across −40°C to +85°C industrial temperature range.
Technical Context
The LMC6035IBPX integrates two independent CMOS op amp channels in an 8-bump micro SMD package, each featuring complementary metal-oxide-semiconductor input stages with 10 TΩ input resistance and rail-to-rail output stage capable of sourcing/sinking ≥3 mA. Its architecture supports stable operation down to 2.0 V supply while maintaining >40 dB CMRR over −0.1 V to 2.3 V common-mode input range at 2.7 V.
It exhibits 1.5 V/µs slew rate and 1.4 MHz gain-bandwidth product at 15 V, with phase margin of 48° and gain margin of 17 dB under 2 kΩ load. Amp-to-amp isolation exceeds 130 dB, minimizing crosstalk in dual-amplifier configurations such as differential drivers and bandpass filters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 15.5 V - enables direct use with NiCd/NiMH battery stacks (3-cell end-of-life = 2.7 V) and compatibility with 3 V, 5 V, and 15 V systems. |
| Input Bias Current | 20 fA typical - permits use of MΩ-range resistors and nF-range capacitors in active filters without significant DC error or power penalty. |
| Rail-to-Rail Output Swing | 200 mV from rails at 2.7 V / 600 Ω - maximizes dynamic range in low-voltage signal conditioning where headroom is constrained. |
| Open-Loop Gain | 126 dB - ensures <0.01% THD at 10 kHz with AV = −10 and 2 kΩ load, critical for precision audio and sensor front-ends. |
| Input Common-Mode Range | −0.1 V to 2.3 V at VS = 2.7 V - supports sensing below ground (e.g., current-sense shunt monitoring) and near-V+ inputs. |
| Quiescent Current per Amplifier | 0.65 mA typical - allows dual-channel operation from coin cells or energy-harvesting sources with multi-year battery life. |
| Slew Rate | 1.5 V/µs - sufficient for 10 kHz full-scale sine wave output with <1% distortion in unity-gain buffer applications. |
Pinout & Package
LMC6035IBPX uses an 8-bump micro SMD package (NS drawing BPA08FFB), measuring 1.412 mm × 1.412 mm × 0.850 mm, with non-solder-mask-defined landing pads and 63Sn/37Pb eutectic bumps. Pin numbering follows JEDEC MO-211 BC: A1 = OUTPUT A (lower-left corner, bump-side-down orientation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | OUTPUT A | Output node of Channel A; drives loads up to 600 Ω with rail-to-rail swing and 3 mA sourcing/sinking capability. |
| B1 | IN A− | Inverting input of Channel A; high-impedance CMOS node with 20 fA bias current, suitable for precision integrators. |
| C1 | IN A+ | Non-inverting input of Channel A; accepts common-mode voltages down to −0.1 V at 2.7 V supply. |
| C2 | V− | Negative supply terminal; tied to ground in single-supply operation; supports split-supply use down to −10 V. |
| C3 | IN B+ | Non-inverting input of Channel B; electrically isolated from Channel A with >130 dB inter-channel rejection. |
| B3 | IN B− | Inverting input of Channel B; identical DC/AC specs to IN A−, enabling matched dual-filter or differential amplifier designs. |
| A3 | OUTPUT B | Output node of Channel B; independently configurable; shares same drive strength and voltage swing as OUTPUT A. |
| A2 | V+ | Positive supply terminal; operates from 2.0–15.5 V; PSRR >60 dB across 5–15 V range ensures immunity to supply ripple. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output with 200 mV headroom @ 2.7 V/600 Ω | Enables full-scale signal utilization in 3 V systems without level-shifting circuitry or supply boosting. |
| 20 fA input bias current (typ) | Reduces input offset drift and leakage-induced errors in high-impedance sensor interfaces and long-time-constant filters. |
| Guaranteed operation at 2.7 V, 3 V, 5 V, and 15 V | Eliminates need for multiple op amp families across portable, industrial, and legacy analog subsystems. |
| −40°C to +85°C industrial temperature range | Validates performance for battery-operated medical devices, handheld test equipment, and automotive cabin electronics. |
| 8-bump micro SMD footprint (1.41 mm²) | Reduces PCB area by >70% vs. SOIC-8, supporting miniaturized wearables and implantable-grade diagnostics. |
Applications
| Portable Medical Sensors | Low-Power Active Filters |
|---|---|
|
Use Scenario: Amplifying weak bio-potential signals (ECG, EEG) from dry electrodes in wearable patches powered by CR2032 coin cells. IC Role / Device Role / Timing Role: Dual-channel high-impedance buffer and 2nd-order Sallen-Key low-pass filter driver with cutoff at 150 Hz. Use Value: 20 fA input current prevents electrode polarization drift; rail-to-rail swing preserves SNR across 2.7 V supply; dual channel reduces component count and layout area. |
Use Scenario: Implementing anti-aliasing and reconstruction filters in battery-powered voice recorders and IoT edge nodes. IC Role / Device Role / Timing Role: Dual op amp configured as unity-gain Sallen-Key low-pass (3 kHz) and high-pass (300 Hz) stages. Use Value: Ultra-low IIN allows 1 MΩ resistors and 1 nF capacitors - cutting filter power by 10× vs. bipolar op amps and shrinking BOM size. |
| Battery-Powered Instrumentation | Rechargeable System Monitoring |
|
Use Scenario: Front-end signal conditioning for handheld multimeters and portable oscilloscopes operating from Li-ion or NiMH packs. IC Role / Device Role / Timing Role: Precision buffer for high-resistance voltage dividers and current-sense amplifiers feeding SAR ADCs. Use Value: Input common-mode range extending 0.1 V below ground enables accurate shunt-based current measurement; 126 dB gain ensures <1 µV offset propagation. |
Use Scenario: Cell voltage monitoring and charge balancing feedback in 3-cell NiMH battery packs for cordless tools. IC Role / Device Role / Timing Role: Dual-channel comparator input buffer and reference divider stabilizer for analog front-end ICs. Use Value: Guaranteed 2.7 V operation matches pack end-of-life voltage; low quiescent current extends standby time between charges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, low-power, rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Higher 500 nA input bias current; 2.5 V min supply; 1.2 MHz GBW; SOIC-8 only | Less suitable for pA-level sensor interfaces or sub-2.7 V battery operation | Prefer when cost sensitivity outweighs ultra-low IIN and micro SMD size requirements. |
| OPA2333AIDR | Zero-drift architecture; 0.02 µV/°C offset drift; 1.8 V min supply; 350 kHz GBW; SOIC-8/TSSOP-8 | Better DC precision but lower speed and no 2.7 V guaranteed rail-to-rail swing into 600 Ω | Choose for DC-critical applications like strain gauge bridges where offset stability dominates AC performance. |
Compared with TLV2462IDR and OPA2333AIDR, LMC6035IBPX uniquely combines 20 fA input current, guaranteed 2.7 V rail-to-rail operation into 600 Ω, and 1.4 mm² micro SMD packaging - making it optimal for space-constrained, battery-limited, high-impedance analog signal chains where both precision and drive capability matter.
Availability
LMC6035IBPX is available at Aetrix Electronics and suitable for portable medical sensors, low-power active filters, battery-powered instrumentation, and rechargeable system monitoring requiring stable component supply across extended lifecycle and temperature ranges.
Supply support for LMC6035IBPX 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 including the LMC6035 series.
The LMC6035IBPX belongs to TI's low-power CMOS op amp portfolio, designed specifically for single-supply, rail-to-rail signal conditioning in energy-constrained portable and medical electronics.
FAQ
What is the minimum supply voltage guaranteed for LMC6035IBPX operation?
The LMC6035IBPX is guaranteed to operate at 2.7 V across −40°C to +85°C, with functional performance documented down to 2.0 V. This 2.7 V rating aligns with the end-of-life voltage of three-series NiCd/NiMH cells (0.9 V/cell), making LMC6035IBPX ideal for long-life portable systems where brownout resilience is critical.
Does LMC6035IBPX support rail-to-rail input common-mode range?
No - LMC6035IBPX features rail-to-rail *output* swing but not rail-to-rail *input*. At 2.7 V supply, its specified input common-mode range is −0.1 V to 2.3 V for CMRR ≥40 dB. This allows inputs slightly below ground and up to 400 mV below V+, supporting shunt current sensing and level-translated sensor interfaces.
What is the thermal resistance (θJA) of the LMC6035IBPX micro SMD package?
The LMC6035IBPX in 8-bump micro SMD (BPA08FFB) has a thermal resistance of 220°C/W, measured on standard JEDEC test board with no airflow. This value is comparable to MSOP-8 (230°C/W) and reflects efficient heat transfer through solder bumps - enabling reliable operation even when driving 600 Ω loads at full 2.7 V supply.
Can LMC6035IBPX drive capacitive loads without oscillation?
LMC6035IBPX can become unstable with >100 pF capacitive loads in unity-gain configuration. Stability is restored using a 50–100 Ω series resistor at the output plus a 5–10 pF feedback capacitor from inverting input to output - a technique validated in TI's AN-1112 and shown in Figure 10 of the LMC6035/LMC6036 datasheet.
Is LMC6035IBPX pin-compatible with other LMC6035 variants like LMC6035IMX?
No - LMC6035IBPX (8-bump micro SMD) uses a completely different pinout and footprint than SOIC-8 (LMC6035IMX) or MSOP-8 (LMC6035IMMX) variants. The micro SMD bump map (A1 = OUTPUT A, B1 = IN A−, etc.) is incompatible with leaded packages; PCB redesign is required for migration.
LMC6035IBPX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-VFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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-DSBGA
LMC6035IBPX FAQ
1.How can I place an order for LMC6035IBPX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6035IBPX 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 LMC6035IBPX reliable?
The price and inventory of LMC6035IBPX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6035IBPX is usually 5 days.
3.What payment methods are accepted for LMC6035IBPX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6035IBPX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6035IBPX?
LMC6035IBPX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6035IBPX 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 LMC6035IBPX?
For technical support, including LMC6035IBPX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6035IBPX requirements.
6.How does Aetrix verify that LMC6035IBPX is sourced from the original manufacturer or authorized distributors?
All LMC6035IBPX 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 LMC6035IBPX meets industry standards.
7.What is the process for return or replacement of LMC6035IBPX?
All LMC6035IBPX units undergo pre-shipment inspection (PSI). If there is an issue with LMC6035IBPX, 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 LMC6035IBPX part is unused and in its original packaging.
Return procedure for LMC6035IBPX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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