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Microchip Technology MCP6441T-E/LT
- Part No.:
- MCP6441T-E/LT
- Manufacturer:
- Microchip Technology
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MCP6441T-E/LT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:6,960
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Product details
Overview
MCP6441T-E/LT from Microchip Technology is a single-channel nanopower operational amplifier optimized for ultra-low-power, single-supply battery-powered systems. It delivers 450 nA typical quiescent current, 9 kHz gain bandwidth product, rail-to-rail input and output operation, unity-gain stability, and operates from 1.4V to 6.0V supply - enabling precision signal conditioning in portable medical sensors and low-power data acquisition.
For engineers reviewing the MCP6441T-E/LT datasheet, MCP6441T-E/LT pinout, MCP6441T-E/LT application, or MCP6441T-E/LT equivalent, key selection criteria include its extended temperature range (–40°C to +125°C), no phase reversal behavior, 3 V/ms slew rate, ±1 pA input bias current at 25°C, and compatibility with high-impedance sensor interfaces requiring minimal loading.
Technical Context
The MCP6441T-E/LT employs a dual-input-stage CMOS architecture that enables true rail-to-rail input operation across –0.3V to VDD+0.3V, with seamless transition between low- and high-common-mode ranges near VDD – 0.6V. Its unity-gain stable design supports direct use in buffers and active filters without external compensation.
It features an advanced ESD-protected input structure with clamping diodes referenced to VSS and VDD, allowing safe operation with inputs extending slightly beyond rails while maintaining ±1 pA typical input bias current. The output stage delivers rail-to-rail swing (VSS+20 mV to VDD–20 mV at 10 kΩ load) and supports capacitive loads up to 100 pF with optional RISO stabilization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Quiescent Current | 450 nA typical - enables >10-year battery life in coin-cell-powered IoT sensors |
| Gain Bandwidth Product | 9 kHz typical - sufficient for DC to low-frequency sensor signals (e.g., thermistors, strain gauges) |
| Supply Voltage Range | 1.4V to 6.0V - supports single Li-ion, alkaline, or NiMH battery operation without regulation |
| Input Offset Voltage | ±4.5 mV max - ensures <0.5% error in 10-bit ADC interfacing at unity gain |
| Slew Rate | 3 V/ms typical - adequate for step responses under 300 µs in low-speed control loops |
| Operating Temperature | –40°C to +125°C - qualified for automotive cabin and industrial edge-node deployment |
| Input Bias Current | ±1 pA typical at 25°C - preserves signal integrity in >1 GΩ source-impedance applications |
Pinout & Package
Package: SC70-5 (MCP6441T-E/LT) - 2.0 mm × 1.25 mm, 0.65 mm pitch, exposed thermal pad (EP) internally connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Analog output | Low-impedance voltage source; rail-to-rail swing (VSS+20 mV to VDD–20 mV @ 10 kΩ) |
| 2 - VIN– | Inverting input | High-impedance CMOS node; ±1 pA bias current enables precision differential sensing |
| 3 - VIN+ | Non-inverting input | High-impedance CMOS node; supports common-mode voltages down to VSS–0.3V |
| 4 - VSS | Negative power supply | Ground reference; EP pad must be soldered to same PCB net for thermal performance |
| 5 - VDD | Positive power supply | 1.4V–6.0V input; requires local 0.01–0.1 µF bypass capacitor within 2 mm |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Guaranteed operation with inputs driven 300 mV beyond VSS or VDD - eliminates output inversion in overvoltage fault conditions |
| Rail-to-rail input/output | Full dynamic range utilization from VSS–0.3V to VDD+0.3V input; VSS+20 mV to VDD–20 mV output - maximizes ADC resolution in single-supply systems |
| Extended temperature range | Specified performance from –40°C to +125°C - suitable for under-hood automotive and industrial control environments |
| Ultra-low input bias current | ±1 pA typical at 25°C - enables accurate measurement of high-impedance sources (e.g., pH electrodes, piezoelectric sensors) |
| Unity-gain stable | No external compensation required - simplifies layout and reduces BOM count in buffer and gain-of-one configurations |
Applications
| Battery Current Sensing | Sensor Signal Conditioning |
|---|---|
Use Scenario: High-side current monitoring in lithium-ion battery packs for portable tools or medical devices. IC Role / Device Role / Timing Role: Precision current-to-voltage converter with 10 Ω sense resistor and 10 V/V gain configuration. Use Value: 450 nA quiescent current minimizes self-discharge; rail-to-rail output ensures full-scale detection of sub-mA currents at low VDD. |
Use Scenario: Amplifying microvolt-level outputs from thermocouples or RTDs in handheld environmental monitors. IC Role / Device Role / Timing Role: Low-noise, high-input-impedance front-end amplifier with 5 µVP-P (0.1–10 Hz) input noise. Use Value: ±1 pA input bias current prevents offset drift in high-Z sensor bridges; 9 kHz GBWP supports stable closed-loop filtering. |
| Precision Half-Wave Rectifier | Low-Power Analog Active Filter |
Use Scenario: AC-coupled signal envelope detection in wearable bio-signal loggers (e.g., EMG, ECG). IC Role / Device Role / Timing Role: Super-diode rectifier core with fast recovery and no saturation-induced delay. Use Value: Unity-gain stability and 3 V/ms slew rate enable clean rectification of 100 Hz–1 kHz signals without ringing or phase lag. |
Use Scenario: Anti-aliasing or noise-reduction filtering in battery-operated data loggers sampling at ≤1 kHz. IC Role / Device Role / Timing Role: Dual-op-amp Sallen-Key or multiple-feedback topology building block. Use Value: 9 kHz GBWP allows 2nd-order filter cutoffs up to ~1.4 kHz; 450 nA IQ extends runtime in always-on monitoring modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Texas Instruments TLV8801DBVR | 420 nA IQ, 6 kHz GBWP, VOS = ±1.5 mV max, same SC70-5 package | Lower offset improves DC accuracy but reduced bandwidth limits higher-frequency filtering | Preferred when <1 mV offset is critical and signal bandwidth stays below 3 kHz |
| STMicroelectronics TSU111IYLT | 480 nA IQ, 15.5 kHz GBWP, VOS = ±3.5 mV max, SOT23-5 package | Higher bandwidth supports faster settling but increased IQ reduces battery life by ~7% | Chosen when system requires >10 kHz small-signal response and can tolerate 10% higher quiescent draw |
Compared with TLV8801DBVR and TSU111IYLT, the MCP6441T-E/LT offers the best balance of ultra-low IQ, guaranteed no-phase-reversal operation, and robust rail-to-rail performance across –40°C to +125°C - making it optimal for harsh-environment, long-life sensor nodes where reliability trumps marginal bandwidth gains.
Availability
MCP6441T-E/LT is available at Aetrix Electronics and suitable for portable equipment, battery-powered systems, and sensor conditioning applications requiring stable component supply and long-term manufacturing continuity.
Supply support for MCP6441T-E/LT 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
Microchip Technology Inc. is a leading provider of microcontroller, analog, and Flash-IP solutions, serving industrial, automotive, consumer, and communications markets with high-reliability semiconductor products.
The MCP6441T-E/LT belongs to Microchip's nanopower op amp family, designed specifically for energy-constrained, single-supply applications where extended battery life, rail-to-rail operation, and wide temperature performance are mandatory.
FAQ
What is the maximum capacitive load the MCP6441T-E/LT can drive without instability?
The MCP6441T-E/LT remains stable with capacitive loads up to 100 pF in unity-gain configuration. For larger loads, a series isolation resistor (RISO) is recommended - e.g., 100 Ω for 500 pF at G = +1 V/V. Stability is verified via phase margin ≥65° and absence of peaking in frequency response per Figure 2-18 of DS22257C.
Does the MCP6441T-E/LT support high-side current sensing with VIN above VDD?
Yes - the MCP6441T-E/LT's rail-to-rail input range extends to VDD+0.3V and VSS–0.3V, and it exhibits no phase reversal when inputs exceed supply rails. This enables reliable high-side current sensing using a 10 Ω shunt, as confirmed in Figure 4-7 and Section 4.6.1 of DS22257C.
What is the thermal resistance (θJA) of the MCP6441T-E/LT in its SC70-5 package?
The MCP6441T-E/LT in SC70-5 package has a thermal resistance θJA of 331°C/W, as specified in Table on DS22257C-page 4. The exposed thermal pad (EP) is internally tied to VSS and must be soldered to a PCB ground plane to achieve this rating and prevent junction temperature exceedance at full ambient range.
Can the MCP6441T-E/LT operate from a 1.4V supply while maintaining rail-to-rail output swing?
Yes - the MCP6441T-E/LT is fully specified from 1.4V to 6.0V. At VDD = 1.4V, it delivers rail-to-rail output swing (VSS+20 mV to VDD–20 mV) into 10 kΩ, as validated in Figure 2-22 and Section 4.2. This enables direct interface with 1.2V–1.8V ADC references in ultra-low-voltage systems.
Is SPICE modeling support available for the MCP6441T-E/LT?
Yes - Microchip provides a validated PSpice macro model for the MCP6441T-E/LT on its official website. The model includes temperature-dependent parameters, noise sources (190 nV/√Hz at 1 kHz), and ESD protection behavior, and is intended for initial design validation before bench testing per Section 5.1 of DS22257C.
MCP6441T-E/LT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.003V/µs
- Gain Bandwidth Product:
- 9 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 4.5 mV
- Current - Supply:
- 450nA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.4 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
MCP6441T-E/LT FAQ
1.How can I place an order for MCP6441T-E/LT through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP6441T-E/LT 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 MCP6441T-E/LT reliable?
The price and inventory of MCP6441T-E/LT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP6441T-E/LT is usually 5 days.
3.What payment methods are accepted for MCP6441T-E/LT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP6441T-E/LT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP6441T-E/LT?
MCP6441T-E/LT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP6441T-E/LT 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 MCP6441T-E/LT?
For technical support, including MCP6441T-E/LT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP6441T-E/LT requirements.
6.How does Aetrix verify that MCP6441T-E/LT is sourced from the original manufacturer or authorized distributors?
All MCP6441T-E/LT 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 MCP6441T-E/LT meets industry standards.
7.What is the process for return or replacement of MCP6441T-E/LT?
All MCP6441T-E/LT units undergo pre-shipment inspection (PSI). If there is an issue with MCP6441T-E/LT, 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 MCP6441T-E/LT part is unused and in its original packaging.
Return procedure for MCP6441T-E/LT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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