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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

Texas Instruments LMC6035IBP

Name: LMC6035IBP
Brand: Texas Instruments
SKU: LMC6035IBP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LMC6035IBP

Manufacturer:: Texas Instruments

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-VFBGA

Datasheet:: LMC6035IBP.pdf

Description:: IC CMOS 2 CIRCUIT 8DSBGA

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Product details

Overview

LMC6035IBP from Texas Instruments (formerly National Semiconductor) is a dual-channel, rail-to-rail output CMOS operational amplifier optimized for ultra-low-power, single-supply operation at 2.7V. It delivers 20 fA input bias current, 126 dB open-loop gain, rail-to-rail swing within 200 mV of either rail into 600 Ω at 2.7V, and operates across 2.0 V to 15.5 V supply range - making it ideal for battery-powered medical sensors and portable instrumentation.

For engineers reviewing the LMC6035IBP datasheet, LMC6035IBP pinout, LMC6035IBP application, or LMC6035IBP equivalent, key selection criteria include its micro SMD package footprint, guaranteed 2.7V performance, ultra-low input current enabling high-Z filter design, and verified rail-to-rail output drive into 600 Ω loads without external level-shifting circuitry.

Technical Context

The LMC6035IBP integrates two independent CMOS op-amp channels in an 8-bump micro SMD package with bump-side-down mounting. Its input stage uses MOSFETs to achieve 20 fA typical input current and wide common-mode range (−0.1 V to 2.3 V at 2.7 V), while the output stage employs complementary totem-pole transistors enabling rail-to-rail swing even under heavy 600 Ω loading.

It supports stable operation from 2.0 V to 15.5 V supply, with guaranteed specifications at 2.7 V, 3 V, 5 V, and 15 V. The device maintains >40 dB CMRR down to −0.1 V common-mode voltage at 2.7 V supply and exhibits 1.5 V/µs slew rate and 1.4 MHz gain-bandwidth product at 15 V - confirming its suitability for precision DC-coupled signal conditioning and low-frequency active filtering.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.0 V to 15.5 V - enables direct use with single NiMH/NiCd battery stacks (2.7 V EOL) and compatibility with 3 V, 5 V, and 15 V industrial rails.
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 either rail into 600 Ω at 2.7 V - eliminates need for level-shifting or dual supplies in low-voltage sensor front-ends.
Open-Loop Gain	126 dB - ensures <10 µV output error for unity-gain buffers driving 2 kΩ loads, critical for precision instrumentation amplifiers.
Input Common-Mode Range	−0.1 V to 2.3 V at VS = 2.7 V - allows direct sensing of signals near ground or above V− in single-supply systems.
Slew Rate	1.5 V/µs - supports clean 10 kHz sine-wave amplification with <0.01% THD into 2 kΩ, suitable for audio and biosignal preamplification.
Quiescent Current	1.6 mA per amplifier at 2.7 V - enables dual-channel operation on coin-cell or energy-harvesting sources with multi-year battery life.

Pinout & Package

LMC6035IBP uses an 8-bump micro SMD package (JEDEC MO-211, variation BC), 1.412 mm × 1.412 mm × 0.850 mm, with non-solder-mask-defined landing pads and 63Sn/37Pb eutectic bumps. Bump-side-down mounting requires precise stencil and reflow profile control.

Pin/Terminal	Circuit Role	Design Meaning
A1	OUTPUT A	Amplifier A output - drives external load directly; capable of sourcing/sinking ≥3 mA into 600 Ω while maintaining rail-to-rail swing.
B1	IN A−	Inverting input of Amplifier A - high-impedance node; guard ring layout required to preserve 20 fA input current spec.
C1	IN A+	Non-inverting input of Amplifier A - accepts signals from −0.1 V to 2.3 V at 2.7 V supply; common-mode rejection >40 dB over this range.
C2	V−	Negative supply terminal - tied to system ground in single-supply configurations; must be low-impedance to maintain PSRR >70 dB.
C3	IN B+	Non-inverting input of Amplifier B - electrically isolated from Amplifier A; enables dual-channel differential or independent signal paths.
B3	IN B−	Inverting input of Amplifier B - identical electrical characteristics to IN A−; supports matched dual-filter or instrumentation topologies.
A3	OUTPUT B	Amplifier B output - fully independent of OUTPUT A; amp-to-amp isolation >130 dB prevents crosstalk in sensitive dual-channel applications.
A2	V+	Positive supply terminal - accepts 2.0–15.5 V; decoupling capacitor (≥100 nF) required within 2 mm for stability at full bandwidth.

Key Features

Feature	Design Value
Rail-to-rail output into 600 Ω	Swings to within 200 mV of either rail at 2.7 V - enables full dynamic range utilization in 3 V systems without external charge pumps.
Ultra-low input bias current	20 fA typical - reduces input offset drift and leakage-induced errors in high-impedance pH, ion-selective, or piezoelectric sensor interfaces.
Guaranteed operation at 2.7 V	Specified performance across temperature (−40 °C to +85 °C) at end-of-life battery voltage - eliminates need for voltage monitoring or brown-out reset in portable designs.
High open-loop gain under load	75 V/mV minimum large-signal gain into 600 Ω - preserves loop accuracy in unity-gain buffers driving heavy analog front-end loads.
Low distortion at 10 kHz	0.01% THD+N into 2 kΩ - meets clinical-grade requirements for ECG, EEG, and impedance plethysmography signal chains.

Applications

Portable Medical Sensors	Low-Power Active Filters
Use Scenario: Signal conditioning for wearable ECG electrodes powered by a single 3 V lithium coin cell. IC Role / Device Role / Timing Role: Dual-channel buffer and first-stage gain amplifier - one channel conditions lead-I signal, the other handles lead-II, with shared reference and rail-to-rail output preserving SNR. Use Value: 20 fA input current minimizes electrode polarization error; 1.6 mA quiescent current per channel extends battery life beyond 12 months at 100 Hz sampling.	Use Scenario: Anti-aliasing and reconstruction filtering in battery-operated data loggers for environmental monitoring. IC Role / Device Role / Timing Role: Dual Sallen-Key low-pass filter stage - each LMC6035IBP amplifier implements one pole with unity gain, enabling Butterworth response up to 3 kHz. Use Value: Ultra-low input current allows use of 10 MΩ resistors and 100 pF capacitors, reducing component count and board area by 40% vs. bipolar alternatives.
Rechargeable Instrumentation	High-Impedance Preamplifiers
Use Scenario: Front-end amplification in handheld multimeters using three-series NiMH cells (3.6 V nominal, 2.7 V EOL). IC Role / Device Role / Timing Role: Dual-channel precision buffer - one channel buffers voltage measurement path, the other handles current shunt sensing with Kelvin connection. Use Value: Guaranteed 2.7 V operation ensures full functionality throughout battery discharge cycle; 126 dB gain maintains <1 µV input-referred noise floor.	Use Scenario: Input stage for pH meter probes with glass electrode impedance >100 MΩ. IC Role / Device Role / Timing Role: Non-inverting unity-gain buffer - isolates high-Z probe from downstream ADC input and PCB leakage paths. Use Value: 20 fA input current limits DC offset drift to <1 µV/hour; guard-ring-compatible pinout enables layout that sustains <50 fA effective leakage.

Portable Medical Sensors

Low-Power Active Filters

Use Scenario: Signal conditioning for wearable ECG electrodes powered by a single 3 V lithium coin cell.

IC Role / Device Role / Timing Role: Dual-channel buffer and first-stage gain amplifier - one channel conditions lead-I signal, the other handles lead-II, with shared reference and rail-to-rail output preserving SNR.

Use Value: 20 fA input current minimizes electrode polarization error; 1.6 mA quiescent current per channel extends battery life beyond 12 months at 100 Hz sampling.

Use Scenario: Anti-aliasing and reconstruction filtering in battery-operated data loggers for environmental monitoring.

IC Role / Device Role / Timing Role: Dual Sallen-Key low-pass filter stage - each LMC6035IBP amplifier implements one pole with unity gain, enabling Butterworth response up to 3 kHz.

Use Value: Ultra-low input current allows use of 10 MΩ resistors and 100 pF capacitors, reducing component count and board area by 40% vs. bipolar alternatives.

Rechargeable Instrumentation

High-Impedance Preamplifiers

Use Scenario: Front-end amplification in handheld multimeters using three-series NiMH cells (3.6 V nominal, 2.7 V EOL).

IC Role / Device Role / Timing Role: Dual-channel precision buffer - one channel buffers voltage measurement path, the other handles current shunt sensing with Kelvin connection.

Use Value: Guaranteed 2.7 V operation ensures full functionality throughout battery discharge cycle; 126 dB gain maintains <1 µV input-referred noise floor.

Use Scenario: Input stage for pH meter probes with glass electrode impedance >100 MΩ.

IC Role / Device Role / Timing Role: Non-inverting unity-gain buffer - isolates high-Z probe from downstream ADC input and PCB leakage paths.

Use Value: 20 fA input current limits DC offset drift to <1 µV/hour; guard-ring-compatible pinout enables layout that sustains <50 fA effective leakage.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel, low-voltage, 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; 3.5 V/µs slew rate; SO-8 package only	Not suitable for ultra-high-Z sensor buffering; better for higher-speed, moderate-precision applications	Select if speed >1.5 V/µs is required and input impedance >1 GΩ is not critical
OPA2333AIDR	Zero-drift architecture; 0.02 µV/°C offset drift; 17 µA supply current; 350 kHz GBW; SO-8 package	Superior DC precision but lower bandwidth; unsuitable for >10 kHz active filters	Select when microvolt-level offset stability over temperature is mandatory, and bandwidth ≤350 kHz suffices

Compared with TLV2462IDR and OPA2333AIDR, the LMC6035IBP uniquely balances femtoampere input current, rail-to-rail output into 600 Ω at 2.7 V, and 1.4 MHz bandwidth - making it the only option among the three qualified for simultaneous high-Z buffering, low-voltage battery operation, and 10 kHz signal fidelity.

Availability

LMC6035IBP is available at Aetrix Electronics and suitable for portable medical devices, battery-powered instrumentation, low-power active filters, and high-impedance sensor interfaces requiring stable component supply across extended production lifecycles.

Supply support for LMC6035IBP 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 delivering analog and embedded processing solutions, with legacy roots in National Semiconductor's precision analog portfolio.

The LMC6035IBP belongs to TI's legacy LMC low-power CMOS op-amp family, designed specifically for single-supply, rail-to-rail, ultra-low-input-current applications in portable and medical electronics where battery life and signal integrity are co-critical.

FAQ

What is the maximum operating temperature range for the LMC6035IBP?

The LMC6035IBP is specified for industrial temperature operation from −40 °C to +85 °C. This range is guaranteed for all electrical parameters including input offset voltage, common-mode rejection ratio, and output swing into 600 Ω loads. Thermal resistance (θJA) is 220 °C/W for the 8-bump micro SMD package, so proper PCB copper pour and thermal vias are recommended to maintain junction temperature below 150 °C under continuous 3 mA output loading.

Does the LMC6035IBP support true rail-to-rail input common-mode range?

No - the LMC6035IBP features rail-to-rail *output* swing but not rail-to-rail *input*. At 2.7 V supply, its input common-mode voltage range is specified from −0.1 V to 2.3 V, meaning it accepts inputs up to 0.4 V below the positive rail. This allows direct interfacing with grounded sensors and reference voltages while maintaining >40 dB CMRR across the usable range. For true rail-to-rail input, consider TI's OPA333 or similar zero-drift alternatives.

Can the LMC6035IBP drive capacitive loads without oscillation?

The LMC6035IBP is not inherently unity-gain stable with large capacitive loads. When driving >100 pF, oscillation may occur - especially in unity-gain follower configuration. Application Note AN-1112 recommends adding a 50–100 Ω series resistor at the output and a 5–10 pF feedback capacitor from inverting input to output to restore phase margin. Alternatively, a pull-up resistor to V+ (≥500 µA current) improves capacitive load tolerance per Figure 11 in the datasheet.

What is the significance of the "BP" suffix in LMC6035IBP?

The "BP" suffix in LMC6035IBP denotes the 8-bump micro SMD package with small (6 mil) solder bumps, JEDEC MO-211 variation BC, NS package number BPA08FFB. It is distinct from "ITL" (Thin micro SMD, 12 mil bumps) and "IM" (SOIC-8). The BP variant measures 1.412 mm × 1.412 mm × 0.850 mm and ships in 250-unit tape-and-reel format - optimized for space-constrained portable PCBs requiring minimal footprint.

How does the LMC6035IBP compare to the LMC6036 in pin compatibility and function?

The LMC6035IBP is a dual-channel op amp in 8-bump micro SMD, while the LMC6036 is a quad-channel version in 14-pin SOIC or TSSOP packages. They share identical electrical specifications (input current, gain, output swing, supply range), but differ in channel count, pinout, and package. There is no pin compatibility between LMC6035IBP and any LMC6036 variant - the LMC6035IBP has 8 terminals for two amplifiers, whereas LMC6036 requires 14 pins for four amplifiers. Board redesign is required for substitution.

LMC6035IBP 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

LMC6035IBP FAQ

1.How can I place an order for LMC6035IBP through Aetrix?

Please submit a Request for Quotation (RFQ) for LMC6035IBP 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 LMC6035IBP reliable?

The price and inventory of LMC6035IBP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6035IBP is usually 5 days.

3.What payment methods are accepted for LMC6035IBP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6035IBP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LMC6035IBP?

LMC6035IBP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LMC6035IBP 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 LMC6035IBP?

For technical support, including LMC6035IBP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6035IBP requirements.

6.How does Aetrix verify that LMC6035IBP is sourced from the original manufacturer or authorized distributors?

All LMC6035IBP 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 LMC6035IBP meets industry standards.

7.What is the process for return or replacement of LMC6035IBP?

All LMC6035IBP units undergo pre-shipment inspection (PSI). If there is an issue with LMC6035IBP, 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 LMC6035IBP part is unused and in its original packaging.

Return procedure for LMC6035IBP:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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