My Inquiry
My Account
Texas Instruments LMC6032IMX
- Part No.:
- LMC6032IMX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC6032IMX.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,203
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMC6032IMX from Texas Instruments is a dual CMOS operational amplifier optimized for high-impedance, low-input-bias-current applications. It delivers 126dB open-loop gain into 2kΩ loads, ultra-low 40fA input bias current, and rail-to-rail input common-mode range extending to V−. It operates from single 5V or dual ±7.5V supplies and is widely used in medical instrumentation front-ends and precision current-to-voltage conversion.
For engineers reviewing the LMC6032IMX datasheet, LMC6032IMX pinout, LMC6032IMX application, or LMC6032IMX equivalent, key selection considerations include its 2.3μV/°C offset drift, 1.1V/μs slew rate, 22nV/√Hz input voltage noise, guaranteed operation at –40°C to +85°C, and SOIC-8 packaging with validated 8-pin dual-amplifier pinout.
Technical Context
The LMC6032IMX employs a proprietary CMOS input stage with differential front-end architecture enabling rail-to-rail input operation down to V− while maintaining ultra-low input bias current. Its output stage supports sourcing/sinking into 600Ω and 2kΩ loads without gain collapse, with open-loop gain specified at ≥100 V/mV under 600Ω loading at ±7.5V supply.
It features internal compensation for unity-gain stability but requires external RC compensation (e.g., 50–100Ω series resistor + 5–10pF feedback capacitor) when driving >100pF capacitive loads. Input bias current remains below 200pA over full temperature range, and PSRR exceeds 60dB across both supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Bias Current | 40fA typical at 25°C - enables pA-level current sensing and >1TΩ source impedance interfacing without significant error |
| Input Offset Voltage Drift | ±2.3μV/°C - ensures <±20μV total drift over –40°C to +85°C, critical for long-term integrator stability |
| Open-Loop Gain | ≥100 V/mV into 600Ω load - maintains high closed-loop accuracy even with heavy resistive loads |
| Slew Rate | 1.1V/μs - supports 10kHz sine-wave output at 8Vpp with <0.2% THD into 2kΩ |
| Supply Range | Single 4.75–15.5V or dual ±2.375–±7.75V - compatible with standard 5V and ±5V systems |
| Input Voltage Noise | 22nV/√Hz at 1kHz - suitable for low-noise preamplification of microvolt-level sensor signals |
| Quiescent Current | 375μA per amplifier - enables low-power battery-operated instrumentation without sacrificing precision |
Pinout & Package
LMC6032IMX is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package, surface-mount, with standard JEDEC MS-012AC footprint and 1.27mm lead pitch. Thermal resistance θJA = 165°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN A (Pin 3) | Noninverting input, Channel A | High-impedance node accepting signals down to V−; guard ring required for sub-pA leakage control |
| –IN A (Pin 2) | Inverting input, Channel A | Feedback node; sensitive to stray capacitance-layout must minimize trace length and parasitic coupling |
| OUT A (Pin 1) | Output, Channel A | Capable of sourcing/sinking ≥13mA; requires series resistor + feedback capacitor for >100pF capacitive loads |
| V− (Pin 4) | Negative power supply | Reference for rail-to-rail input common-mode range; must be stable and low-impedance |
| +IN B (Pin 5) | Noninverting input, Channel B | Independent high-Z input identical to Pin 3; enables dual-channel signal conditioning on single die |
| –IN B (Pin 6) | Inverting input, Channel B | Separate feedback path; allows independent gain configuration per channel |
| OUT B (Pin 7) | Output, Channel B | Electrically isolated from OUT A; supports independent loading up to 600Ω |
| V+ (Pin 8) | Positive power supply | Maximum 16V absolute rating; output swing limited to within ~0.3V of V+ under 600Ω load |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range including V− | Enables true single-supply operation with ground-referenced sensors and eliminates level-shifting circuitry |
| Ultra-low 40fA input bias current | Supports integration times >100 seconds in long-term integrators without significant drift from input current error |
| Specified performance into 600Ω and 2kΩ loads | Guarantees usable gain and bandwidth in real-world transducer interfaces without external buffers |
| Low 2.3μV/°C offset voltage drift | Reduces calibration frequency in portable medical devices operating across ambient temperature variations |
| 22nV/√Hz input voltage noise at 1kHz | Preserves signal integrity in EEG/ECG preamplifiers where sensor outputs are <10μV RMS |
Applications
| High-Impedance Sensor Buffer | Current-to-Voltage Converter |
|---|---|
|
Use Scenario: Interfacing pH electrodes or piezoelectric sensors with output impedances >100MΩ and signal levels <100mV. IC Role / Device Role / Timing Role: High-Z buffer amplifying signal without loading source; dual-channel allows simultaneous reference and measurement paths. Use Value: 40fA input bias current prevents electrode polarization and preserves signal fidelity over minutes-long measurements. |
Use Scenario: Converting photodiode or ion chamber current (10pA–10nA) into measurable voltage for radiation monitoring. IC Role / Device Role / Timing Role: Transimpedance amplifier with programmable gain; low input bias avoids dark-current-induced offset errors. Use Value: 2.3μV/°C drift ensures <±20μV baseline shift over industrial temperature range, improving dose accuracy. |
| Long-Term Integrator | Medical Instrumentation Front-End |
|
Use Scenario: Accumulating charge from low-leakage capacitors in energy-harvesting or dosimetry circuits over hours. IC Role / Device Role / Timing Role: Precision integrator using matched external resistors and low-drift op-amp topology. Use Value: Ultra-low input bias minimizes integration error accumulation; 126dB gain ensures residual error <0.01% after 1-hour integration. |
Use Scenario: Front-end amplification in portable ECG monitors requiring DC-coupled, low-noise, low-power analog signal chain. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier driver with independent gain and filtering per lead. Use Value: 22nV/√Hz noise and rail-to-rail input enable detection of 10μV cardiac signals without AC coupling or high-pass filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual CMOS op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC272CDR | Higher input bias current (1pA vs 40fA), lower gain (110dB), wider supply range (up to 16V), higher quiescent current (700μA) | Less suitable for pA-level current sensing or long-term integration; acceptable for general-purpose buffering where cost is primary | Select TLC272CDR only if legacy compatibility or wider supply tolerance outweighs precision requirements. |
| OPA2182IDR | Lower offset drift (±0.003μV/°C), lower noise (5.7nV/√Hz), higher GBW (5.7MHz), but higher IQ (560μA) and no rail-to-rail input | Better for high-speed, ultra-precision DC applications; unsuitable for single-supply ground-sensing configurations | Choose OPA2182IDR when sub-μV drift and nanovolt noise dominate; avoid when V−-referenced inputs are required. |
Compared with TLC272CDR and OPA2182IDR, the LMC6032IMX uniquely balances ultra-low input bias, rail-to-rail input, and low power in a cost-effective SOIC-8 package-making it optimal for battery-powered, high-impedance analog front-ends where ground-referenced sensing is mandatory.
Availability
LMC6032IMX is available at Aetrix Electronics and suitable for medical instrumentation, precision sensor interfaces, and low-power portable electronics requiring stable component supply and long-lifecycle support.
Supply support for LMC6032IMX 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 specializing in analog and embedded processing technologies, with leadership in precision analog ICs and industrial-grade components.
The LMC6032IMX belongs to TI's LMC603x family of CMOS op-amps designed specifically for ultra-high-input-impedance, low-drift, single-supply instrumentation applications-targeting medical, scientific, and test equipment markets.
FAQ
What is the maximum capacitive load the LMC6032IMX can drive without oscillation?
The LMC6032IMX becomes unstable with capacitive loads exceeding ~100pF in unity-gain follower configuration. To maintain stability, add a 50–100Ω series resistor between the output and load, plus a 5–10pF capacitor from output to inverting input. This compensation restores phase margin above 50° and allows reliable operation with >1nF loads. The LMC6032IMX datasheet confirms this behavior in Figure 5-13 through Figure 5-16.
Does the LMC6032IMX support true rail-to-rail output swing?
No-the LMC6032IMX provides rail-to-rail *input* common-mode range (including V−), but its output swing is limited: at VS = 5V and RL = 2kΩ, it swings from 0.10V to 4.87V; at VS = 15V, from 0.26V to 14.63V. Output does not reach within 100mV of either rail under heavy load. This is explicitly specified in Section 5.6 Electrical Characteristics of the LMC6032IMX datasheet.
Can the LMC6032IMX operate from a single 3.3V supply?
No-the LMC6032IMX minimum recommended single-supply voltage is 4.75V (Section 5.3). At 3.3V, key parameters like open-loop gain, output swing, and slew rate degrade significantly and are not characterized. Operation below 4.75V violates recommended conditions and risks unreliable performance. Always use ≥4.75V for guaranteed LMC6032IMX functionality.
How does the LMC6032IMX compare to the LM358 in pin compatibility and performance?
The LMC6032IMX is pin-compatible with the LM358 in SOIC-8 (D) and PDIP-8 (P) packages, sharing identical pinout: Pin 1 (OUT A), Pin 2 (–IN A), Pin 3 (+IN A), Pin 4 (V−), Pin 5 (+IN B), Pin 6 (–IN B), Pin 7 (OUT B), Pin 8 (V+). However, LMC6032IMX offers 10× lower input bias current (40fA vs 45nA), 2× higher gain (126dB vs 100dB), and rail-to-rail input-while LM358 supports wider supply range (up to 32V).
Is the LMC6032IMX suitable for use in automotive applications?
The LMC6032IMX is not qualified to AEC-Q100 standards and lacks automotive-grade temperature range (–40°C to +125°C). Its specified operating range is –40°C to +85°C, and TI does not list it in automotive product folders. For automotive designs requiring similar performance, consider TI's TLV9062-Q1 or OPA2333-Q1-both AEC-Q100 qualified. The LMC6032IMX remains appropriate for industrial and medical applications within its rated temperature limits.
LMC6032IMX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMC®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 1.1V/µs
- Gain Bandwidth Product:
- 1.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.04 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 750µA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 4.75 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
LMC6032IMX FAQ
1.How can I place an order for LMC6032IMX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6032IMX 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 LMC6032IMX reliable?
The price and inventory of LMC6032IMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6032IMX is usually 5 days.
3.What payment methods are accepted for LMC6032IMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6032IMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6032IMX?
LMC6032IMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6032IMX 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 LMC6032IMX?
For technical support, including LMC6032IMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6032IMX requirements.
6.How does Aetrix verify that LMC6032IMX is sourced from the original manufacturer or authorized distributors?
All LMC6032IMX 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 LMC6032IMX meets industry standards.
7.What is the process for return or replacement of LMC6032IMX?
All LMC6032IMX units undergo pre-shipment inspection (PSI). If there is an issue with LMC6032IMX, 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 LMC6032IMX part is unused and in its original packaging.
Return procedure for LMC6032IMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMC6032IMX Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
