My Inquiry
My Account
STMicroelectronics LMC6482IDT
- Part No.:
- LMC6482IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC6482IDT.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:962
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMC6482IDT from STMicroelectronics is a dual CMOS rail-to-rail input/output operational amplifier optimized for precision, low-power, high-impedance signal conditioning. It delivers 2 mV max input offset voltage, 2.7 MHz gain bandwidth product, and operates from 2.7 V to 16 V supply - enabling use in battery-powered instrumentation, DAC buffering, and high-side/low-side current sensing circuits.
For engineers reviewing the LMC6482IDT datasheet, LMC6482IDT pinout, LMC6482IDT application, or LMC6482IDT equivalent, key selection criteria include rail-to-rail input/output swing at low supply (2.7 V), 50 pA max input bias current for sensor interfacing, 98 dB CMRR at 16 V, extended -40 °C to +125 °C operation, and MiniSO8 package compatibility with space-constrained PCB layouts.
Technical Context
The LMC6482IDT integrates two independent CMOS op-amps with complementary input stages enabling true rail-to-rail common-mode input range (VCC− − 0.1 V to VCC+ + 0.1 V) and output swing within 40 mV of rails under 10 kΩ load. Its unity-gain-stable architecture supports active filtering and instrumentation amplifier front-ends without external compensation.
Designed for wide-supply flexibility, it maintains stable gain bandwidth (1.9–2.7 MHz), phase margin (≥50°), and low THD+N (0.0002 % at 10 VPP) across 2.7–16 V operation. Input ESD protection (4 kV HBM) and long-term offset drift characterization (500 nV/month at 16 V/125 °C) support robust deployment in industrial and automotive-adjacent systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 16 V - enables direct integration into single-cell Li-ion (3.0 V nominal) and 12 V industrial rails without regulation. |
| Input Offset Voltage | 2 mV max - ensures ≤0.05 % error in 4 V full-scale data acquisition systems without trimming. |
| Gain Bandwidth Product | 2.7 MHz - supports stable closed-loop gain ≥10 up to 270 kHz for anti-aliasing filter design. |
| Input Bias Current | 50 pA max - preserves signal integrity when interfacing >100 MΩ sensors (e.g., pH electrodes, piezoresistive strain gauges). |
| CMRR | 98 dB at 16 V - rejects >99.99% of common-mode noise in noisy 12 V supply environments. |
| Output Swing | Within 40 mV of rails (10 kΩ load) - maximizes dynamic range in 3.3 V or 5 V ADC reference buffers. |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive modules and industrial motor control feedback paths. |
Pinout & Package
LMC6482IDT is housed in an 8-pin MiniSO8 (3.0 mm × 3.0 mm, 0.65 mm pitch) package - compatible with standard SO-8 footprints but offering 30 % board area reduction and improved thermal resistance (190 °C/W junction-to-ambient).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN1+) | Non-inverting input, Channel 1 | Accepts signals from VCC− − 0.1 V to VCC+ + 0.1 V - enables direct connection to grounded or rail-referenced sensors. |
| 2 (IN1−) | Inverting input, Channel 1 | Supports precision differential amplification with matched internal input structure for low offset drift. |
| 3 (OUT1) | Output, Channel 1 | Drives loads down to 2 kΩ while maintaining rail-to-rail swing - suitable for driving SAR ADC inputs directly. |
| 4 (VCC−) | Negative supply rail | Ground reference for single-supply operation; accepts 0 V or negative voltage up to −18 V absolute max. |
| 5 (VCC+) | Positive supply rail | Accepts 2.7–16 V; internal regulation ensures consistent biasing across full voltage range. |
| 6 (IN2−) | Inverting input, Channel 2 | Electrically isolated from Channel 1 - allows independent gain/feedback networks without crosstalk (≥140 dB @ 1 kHz). |
| 7 (IN2+) | Non-inverting input, Channel 2 | Matches IN1+ specs - supports dual-sensor readout or composite signal conditioning (e.g., I/V + V/V stages). |
| 8 (OUT2) | Output, Channel 2 | Delivers identical performance to OUT1 - enables simultaneous buffering of reference and signal paths. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input/output | Enables full utilization of 2.7 V supply headroom - eliminates need for level-shifting in low-voltage data loggers. |
| 50 pA max input bias current | Reduces voltage error across 1 GΩ source impedance to <50 µV - critical for high-impedance electrochemical sensors. |
| 2.7 MHz GBP with unity-gain stability | Permits stable 10× gain configuration up to 270 kHz - meets anti-aliasing requirements for 500 ksps ADCs. |
| 98 dB CMRR at 16 V | Maintains accuracy in 12 V systems with noisy switching regulators - suppresses supply ripple coupling into signal path. |
| 4 kV HBM ESD rating | Withstands handling and board-level transients without external protection - reduces BOM count in portable test equipment. |
Applications
| Battery-Powered Data Logger | DAC Output Buffer |
|---|---|
|
Use Scenario: Continuous monitoring of temperature, humidity, and gas concentration using microamp-level sensor outputs and a 3.3 V MCU with integrated 12-bit ADC. IC Role / Device Role / Timing Role: Front-end signal conditioner for high-impedance sensors; provides rail-to-rail buffering and gain before ADC sampling. Use Value: 50 pA input bias current prevents loading of capacitive humidity sensors; 2.7 V operation extends battery life by eliminating LDO overhead. |
Use Scenario: Driving a precision 16-bit DAC output to control analog actuator voltage (0–10 V range) in programmable power supplies. IC Role / Device Role / Timing Role: Unity-gain buffer isolating DAC from variable load impedance; maintains monotonicity and settling time. Use Value: Rail-to-rail output swing ensures full 0–10 V compliance at 10 V supply; 2 mV offset minimizes zero-scale error in closed-loop control. |
| High-Side Current Sensing | Instrumentation Amplifier Front-End |
|
Use Scenario: Measuring motor phase current in 24 V BLDC drives using shunt resistors placed between MOSFETs and power rail. IC Role / Device Role / Timing Role: Differential amplifier stage referenced to 24 V rail; rejects common-mode voltage while amplifying mV-level shunt drops. Use Value: Rail-to-rail input accepts common-mode voltages up to 24.1 V; 98 dB CMRR suppresses PWM switching noise during current sampling. |
Use Scenario: Biopotential acquisition in portable ECG monitors requiring ultra-low noise, high CMRR, and DC-coupled signal chain. IC Role / Device Role / Timing Role: First-stage amplifier in 3-op-amp IA topology; sets gain, input impedance, and common-mode rejection. Use Value: 2 mV offset and 5 µV/°C drift ensure baseline stability over body temperature shifts; 1 TΩ input resistance avoids electrode polarization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC662CDR | Higher input offset (3.5 mV max), lower GBP (1.8 MHz), same MiniSO8 package | Less suitable for 16-bit DAC buffering where offset and bandwidth impact INL | Prefer LMC6482IDT when <2.5 mV offset and >2.5 MHz GBP are required for 12+ bit systems |
| OPA2333AIDR | Zero-drift architecture, 2 µV offset, but higher quiescent current (17 µA vs. 900 µA) | Not viable for multi-year battery operation; superior for DC-critical sensor nodes with periodic wake-up | Choose LMC6482IDT for ultra-low-power continuous logging; OPA2333AIDR only if sub-µV offset justifies 19× current penalty |
Compared with TLC662CDR and OPA2333AIDR, the LMC6482IDT uniquely balances sub-2.5 mV offset, 2.7 MHz bandwidth, and <1 mA total supply current - making it optimal for always-on, battery-constrained precision analog front-ends where zero-drift complexity or performance trade-offs are unacceptable.
Availability
LMC6482IDT is available at Aetrix Electronics and suitable for battery-powered instrumentation, high-impedance sensor interface, and industrial current sensing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMC6482IDT 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in automotive, industrial, and power management ICs with strong analog portfolio heritage.
The LMC6482IDT belongs to ST's precision analog amplifier family, engineered specifically for low-power, rail-to-rail signal conditioning in resource-constrained embedded systems - emphasizing accuracy, supply flexibility, and ruggedness over wide temperature ranges.
FAQ
What is the maximum capacitive load the LMC6482IDT can drive stably?
The LMC6482IDT remains stable with ≤100 pF capacitive load in unity-gain configuration. For loads >100 pF, a series isolation resistor (Riso) of 10–100 Ω must be added between output and load - per Figure 27 in DS12573 Rev 3. Stability is confirmed via phase margin ≥50° and <5 % overshoot in step response testing.
Does the LMC6482IDT support dual-supply operation?
Yes - the LMC6482IDT operates with split supplies (e.g., ±2.7 V to ±8 V) as long as total differential supply voltage stays within 2.7–16 V and absolute pin voltages remain within −0.2 V to VCC+ + 0.2 V. The input common-mode range extends 0.1 V beyond each rail, enabling true bipolar signal handling.
How does input bias current vary with temperature?
Input bias current increases with temperature: 1–50 pA at 25 °C, up to 200 pA at −40 °C and +125 °C (per Table 3–5). This variation is process-controlled and remains symmetrical between inputs, minimizing offset current effects in differential configurations.
Can the LMC6482IDT be used as a comparator?
It is not recommended - the LMC6482IDT lacks internal hysteresis and is optimized for linear operation. Sustained open-loop use (e.g., comparator mode) at high temperature may cause permanent input offset voltage drift due to input stage stress, as documented in Section 5.7 of DS12573 Rev 3.
LMC6482IDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- 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:
- Rail-to-Rail
- Slew Rate:
- 1.4V/µs
- Gain Bandwidth Product:
- 2.7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 660µA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LMC6482IDT FAQ
1.How can I place an order for LMC6482IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6482IDT 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 LMC6482IDT reliable?
The price and inventory of LMC6482IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6482IDT is usually 5 days.
3.What payment methods are accepted for LMC6482IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6482IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6482IDT?
LMC6482IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6482IDT 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 LMC6482IDT?
For technical support, including LMC6482IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6482IDT requirements.
6.How does Aetrix verify that LMC6482IDT is sourced from the original manufacturer or authorized distributors?
All LMC6482IDT 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 LMC6482IDT meets industry standards.
7.What is the process for return or replacement of LMC6482IDT?
All LMC6482IDT units undergo pre-shipment inspection (PSI). If there is an issue with LMC6482IDT, 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 LMC6482IDT part is unused and in its original packaging.
Return procedure for LMC6482IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMC6482IDT 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…
