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Texas Instruments LMC6464AIM/NOPB
- Part No.:
- LMC6464AIM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC6464AIM/NOPB.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,673
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Product details
Overview
LMC6464AIM/NOPB from Texas Instruments is a quad micropower rail-to-rail input and output CMOS operational amplifier optimized for ultra-low-power, precision signal conditioning in battery-operated systems. It delivers 20 μA/amplifier supply current, 0.25 mV input offset voltage, 85 dB CMRR at 5V, rail-to-rail output swing within 10 mV of rails (RL = 25 kΩ), and 150 fA input bias current - enabling high-accuracy transducer interfacing and medical sensor front-ends.
For engineers reviewing the LMC6464AIM/NOPB datasheet, LMC6464AIM/NOPB pinout, LMC6464AIM/NOPB application, or LMC6464AIM/NOPB equivalent, key selection criteria include guaranteed 3V/5V operation, input common-mode range extending beyond rails, low-noise (80 nV/√Hz) performance at 1 kHz, and SOIC-14 package compatibility with space-constrained portable designs.
Technical Context
The LMC6464AIM/NOPB employs a CMOS input stage enabling rail-to-rail input common-mode voltage range (−0.2 V to V+ + 0.3 V) and ultra-low input current (150 fA typical). Its output stage supports rail-to-rail swing into 25 kΩ loads, with sourcing/sinking capability up to ±27 mA at 5V supply.
It features guaranteed specifications across −40°C to +85°C, including 85 dB CMRR over 0–5 V common-mode range at 5V, 50 kHz gain-bandwidth product, and 15 V/ms slew rate - making it suitable for DC-coupled instrumentation, low-frequency active filtering, and precision comparator circuits without external hysteresis components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 80 μA per amplifier (max 140 μA) at 5V - enables >1-year battery life in coin-cell-powered sensors. |
| Input Offset Voltage | 0.25 mV (typ), 0.5 mV (max) at 25°C - ensures ≤0.5% error in 100 mV full-scale transducer outputs. |
| CMRR | 85 dB (min) at 0–5 V VCM, 5V supply - rejects >99.97% of common-mode interference in noisy industrial environments. |
| Input Bias Current | 150 fA (typ) - preserves signal integrity in high-impedance pH electrodes, photodiode, or piezoelectric sensor interfaces. |
| Output Swing | Within 10 mV of rails (4.99 V / 0.01 V) at 5V, RL = 25 kΩ - maximizes dynamic range in single-supply 12-bit ADC driver stages. |
| Gain-Bandwidth Product | 50 kHz - supports stable unity-gain buffering and low-pass filtering up to ~8 kHz with phase margin >50°. |
| Input Capacitance | 3 pF - minimizes peaking and instability when driving capacitive loads up to 200 pF with proper isolation. |
Pinout & Package
LMC6464AIM/NOPB is housed in a 14-pin SOIC (Package Drawing D) with standard dual-in-line pin spacing (1.27 mm), 8.65 mm × 3.91 mm body, and RoHS-compliant matte tin (SN) lead finish. Thermal resistance θJA is 126°C/W on standard 2-layer PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier A) | High-impedance node accepting differential signal; requires guard ring layout for leakage <1 pA. |
| 2 | Non-Inverting Input (Amplifier A) | Accepts rail-to-rail common-mode signals up to V+ + 0.3 V and down to V− − 0.3 V. |
| 3 | Output (Amplifier A) | Capable of sourcing/sinking ≥27 mA; swing limited by load impedance and supply voltage. |
| 4 | V− (Ground or Negative Supply) | Reference for all four amplifiers; must be low-impedance to maintain PSRR >85 dB. |
| 5 | Non-Inverting Input (Amplifier B) | Independent input for second channel; shares no internal nodes with Amplifier A. |
| 6 | Inverting Input (Amplifier B) | Configurable for inverting gain stages; input capacitance (3 pF) affects high-frequency stability. |
| 7 | Output (Amplifier B) | Electrically isolated output; amp-to-amp isolation >130 dB prevents crosstalk in multi-channel sensing. |
| 8 | Output (Amplifier C) | Third independent output; usable for reference buffering or active filter stages without loading other channels. |
| 9 | Inverting Input (Amplifier C) | Supports precision instrumentation topologies; offset trim resistors connect here per Figure 41–42. |
| 10 | Non-Inverting Input (Amplifier C) | Enables rail-to-rail common-mode rejection in 3-op-amp in-amp configurations (Figure 48). |
| 11 | V+ (Positive Supply) | Operates from 3.0 V to 15.5 V; quiescent current increases only 10 μA from 3V to 15V supply. |
| 12 | Output (Amplifier D) | Fourth output; supports independent signal paths such as dual-sensor differential processing. |
| 13 | Inverting Input (Amplifier D) | Valid for input voltages beyond rails; absolute max differential input = ±supply voltage. |
| 14 | Non-Inverting Input (Amplifier D) | Used in low-power oscillator (Figure 55) or rectifier (Figure 52–53) configurations with hysteresis control. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 0.2 V beyond both supply rails - eliminates level-shifting circuitry in single-supply sensor interfaces. |
| Ultra-low input bias current (150 fA) | Reduces voltage error across 10 GΩ source impedances to <1.5 mV - critical for piezoresistive and electrochemical sensors. |
| Guaranteed operation at 3V and 5V | Enables direct integration into Li-ion (3.0–4.2 V) and alkaline (3×1.5 V) battery systems without regulation. |
| 85 dB CMRR over full input range | Maintains accuracy in ECG, EEG, and industrial current-sense applications where common-mode noise exceeds 1 VPP. |
| Low input offset voltage drift (1.5 μV/°C) | Limits thermal-induced error to <0.15 mV over 0–70°C ambient - avoids recalibration in portable medical devices. |
| 130 dB amp-to-amp isolation | Prevents signal coupling between channels in quad-configured data acquisition front-ends or multi-sensor arrays. |
Applications
| Portable Medical Sensors | Battery Monitoring Systems |
|---|---|
|
Use Scenario: Amplifying microvolt-level bio-potential signals from dry-electrode ECG patches in wearable monitors. IC Role / Device Role / Timing Role: Front-end instrumentation amplifier channel providing rail-to-rail input swing, ultra-low input current, and 85 dB CMRR to reject motion artifact and power-line interference. Use Value: Enables 24-hour continuous monitoring on CR2032 coin cell due to 80 μA total quiescent current for all four amplifiers. |
Use Scenario: Precision voltage measurement of individual cells in 3S Li-ion battery packs for state-of-charge estimation. IC Role / Device Role / Timing Role: High-impedance buffer and differential amplifier for cell voltage sensing, rejecting pack-level common-mode transients during charge/discharge switching. Use Value: 0.25 mV offset and 150 fA input current ensure ≤1 mV measurement error across 2.5–4.2 V cell range without calibration. |
| Industrial Transducer Interfaces | Low-Power Oscillators & Timers |
|
Use Scenario: Signal conditioning for 4–20 mA loop-powered pressure transducers in remote IoT field nodes. IC Role / Device Role / Timing Role: Rail-to-rail I/V converter and gain stage operating directly from 3.3 V supply, rejecting supply ripple via 85 dB PSRR. Use Value: Eliminates need for external rail-splitter or negative supply, reducing BOM count and PCB area by 30% vs. bipolar op-amps. |
Use Scenario: Generating precise 1 Hz square-wave timing signals for sleep/wake cycling in environmental sensor nodes. IC Role / Device Role / Timing Role: Comparator-based relaxation oscillator (Figure 55) using internal hysteresis and rail-to-rail output swing. Use Value: Consumes only 320 μA total (4 × 80 μA) while delivering clean 0–5 V logic-compatible output without external comparators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad micropower op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Higher supply current (550 μA/amplifier), 3.5 mV VOS (max), 65 dB CMRR - less precision, higher power. | Acceptable for non-critical industrial IO modules but unsuitable for medical-grade bio-signal amplification. | Select TLV2464IDR only when cost is primary constraint and 85 dB CMRR or sub-mV offset is not required. |
| OPA2333PWR | Zero-drift architecture, 2 μV VOS (max), 17 μA/amplifier - superior DC accuracy but lower CMRR (102 dB) and no rail-to-rail input. | Better for DC-coupled strain gauge bridges; cannot handle inputs beyond rails like LMC6464AIM/NOPB. | Choose OPA2333PWR when long-term DC stability dominates over input voltage range and power budget. |
Compared with TLV2464IDR and OPA2333PWR, the LMC6464AIM/NOPB uniquely balances rail-to-rail input operation, 150 fA input current, and 85 dB CMRR at 80 μA - making it optimal for battery-powered transducer interfaces where signal integrity, power, and voltage range are simultaneously constrained.
Availability
LMC6464AIM/NOPB is available at Aetrix Electronics and suitable for portable medical devices, battery monitoring systems, industrial transducer interfaces, and low-power timing circuits requiring stable component supply across extended production lifecycles.
Supply support for LMC6464AIM/NOPB 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 specializing in analog and embedded processing technologies, with decades of expertise in precision op-amps and low-power signal chain solutions.
The LMC6464AIM/NOPB belongs to TI's micropower rail-to-rail op-amp family, designed specifically for ultra-low-power, high-accuracy signal conditioning in battery-operated and space-constrained applications.
FAQ
What is the maximum supply voltage for LMC6464AIM/NOPB?
The LMC6464AIM/NOPB supports an absolute maximum supply voltage of 16 V (V+ − V−), with recommended operating range from 3.0 V to 15.5 V. At 15.5 V, supply current remains within 140 μA per amplifier, and output swing reaches 14.95 V (min) into 25 kΩ - enabling direct use in unregulated 12 V systems with appropriate decoupling.
Does LMC6464AIM/NOPB support rail-to-rail input beyond the supply rails?
Yes, the LMC6464AIM/NOPB accepts input voltages up to V+ + 0.3 V and V− − 0.3 V, confirmed in Absolute Maximum Ratings and validated in Figure 33 of the datasheet. This rail-overdrive capability allows direct connection to sensors whose output may transiently exceed supply rails - such as piezoelectric elements - without phase inversion or damage when current-limited externally.
Can LMC6464AIM/NOPB drive capacitive loads reliably?
The LMC6464AIM/NOPB can drive up to 200 pF capacitively at unity gain without oscillation (per Figure 36–39). For larger loads (e.g., 300 pF), TI recommends resistive isolation (Riso ≈ 100 Ω) or feedback compensation (R1/C1 network per Figure 38) to preserve phase margin >50° and prevent underdamped response in precision sensor buffers.
What is the guaranteed input offset voltage specification for LMC6464AIM/NOPB?
The LMC6464AIM/NOPB has a guaranteed maximum input offset voltage of 0.5 mV at 25°C (LMC6464AI grade), with typical value of 0.25 mV. Over −40°C to +85°C, the limit is 1.2 mV (max), and temperature drift is specified at 1.5 μV/°C - ensuring predictable, low-error performance in uncalibrated portable instrumentation.
Is LMC6464AIM/NOPB suitable for use as a comparator?
Yes, the LMC6464AIM/NOPB is explicitly validated as a micropower comparator in Figure 51 (hysteresis configuration) and Figure 55 (oscillator). With 15 V/ms slew rate and rail-to-rail output, it provides clean 0–5 V logic transitions while consuming only 80 μA - making it ideal for battery-powered threshold detection where speed <100 kHz is sufficient.
LMC6464AIM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.028V/µs
- Gain Bandwidth Product:
- 50 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.15 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 90µA (x4 Channels)
- Current - Output / Channel:
- 75 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 15.5 V
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LMC6464AIM/NOPB FAQ
1.How can I place an order for LMC6464AIM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6464AIM/NOPB 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 LMC6464AIM/NOPB reliable?
The price and inventory of LMC6464AIM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6464AIM/NOPB is usually 5 days.
3.What payment methods are accepted for LMC6464AIM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6464AIM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6464AIM/NOPB?
LMC6464AIM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6464AIM/NOPB 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 LMC6464AIM/NOPB?
For technical support, including LMC6464AIM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6464AIM/NOPB requirements.
6.How does Aetrix verify that LMC6464AIM/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC6464AIM/NOPB 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 LMC6464AIM/NOPB meets industry standards.
7.What is the process for return or replacement of LMC6464AIM/NOPB?
All LMC6464AIM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC6464AIM/NOPB, 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 LMC6464AIM/NOPB part is unused and in its original packaging.
Return procedure for LMC6464AIM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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