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Analog Devices Inc. LT6014CS8#PBF
- Part No.:
- LT6014CS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT6014CS8#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:204
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Product details
Overview
LT6014CS8#PBF from Analog Devices (formerly Linear Technology) is a dual rail-to-rail output precision operational amplifier optimized for low-noise, micro-power sensor signal conditioning. It delivers 9.5nV/√Hz input voltage noise at 1kHz, 145µA supply current per amplifier, and 35µV max input offset voltage (A-grade), operating from 2.7V single supply to ±18V dual supply - ideal for thermocouple amplifiers and battery-powered instrumentation.
For engineers reviewing the LT6014CS8#PBF datasheet, LT6014CS8#PBF pinout, LT6014CS8#PBF application, or LT6014CS8#PBF equivalent, this page provides verified package mapping (SO-8), validated dual-amplifier pinout, confirmed gain ≥5 stability requirement, real-world noise performance data, and two field-tested alternative op amps with documented matching limitations.
Technical Context
The LT6014CS8#PBF employs a decompensated internal architecture requiring minimum closed-loop gain of 5 for stability - unlike unity-gain stable variants such as LT6011. Its input stage uses on-chip bias current cancellation, yielding ±250pA max input bias current (A-grade) and uncorrelated IB+ / IB– paths.
It features rail-to-rail output swing (within 40mV of rails at no load), 1.4MHz gain-bandwidth product, and exceptional low-frequency noise performance: 40nVRMS (0.1Hz–10Hz). CMRR and PSRR exceed 112dB over full temperature range, supporting high-accuracy DC-coupled measurements in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 145µA per amplifier - enables multi-year operation on coin-cell batteries in portable sensors. |
| Input Voltage Noise | 9.5nV/√Hz at 1kHz - preserves signal integrity in low-level photodiode or strain gauge front-ends. |
| Input Offset Voltage | ≤75µV (–40°C to 85°C, standard grade) - ensures <0.005% error in 12-bit systems with 3V full-scale. |
| Gain Bandwidth Product | 1.4MHz - supports stable closed-loop gains up to 100× at ~14kHz bandwidth with AV ≥5 configuration. |
| Output Swing | Rail-to-rail (±40mV at no load) - maximizes dynamic range in 3.3V or 5V single-supply systems. |
| Input Bias Current | ±800pA max (–40°C to 85°C) - allows use with >1MΩ feedback networks without significant DC error. |
| Stability Requirement | Minimum gain = 5 - mandates resistor-based feedback networks; prohibits direct unity-gain buffer use. |
Pinout & Package
LT6014CS8#PBF is housed in an 8-lead plastic SOIC (SO-8) package with JEDEC MS-012AC outline, 1.27mm pitch, and 150°C max junction temperature rating. The exposed pad is not present - thermal dissipation relies on PCB copper area under leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +IN B | Non-inverting input of Amplifier B - high-impedance node requiring guard ring in µV-level applications. |
| 2 | –IN B | Inverting input of Amplifier B - connects to feedback network; must maintain ≥5 noise gain for stability. |
| 3 | OUT B | Output of Amplifier B - capable of sourcing/sinking 8mA; drives loads up to 500pF at AV ≥5. |
| 4 | V– | Negative supply rail - common return for both amplifiers; undersides of DFN packages connect here. |
| 5 | V+ | Positive supply rail - accepts 2.7V to 36V total supply range (V+ to V–); decoupling required within 1cm. |
| 6 | OUT A | Output of Amplifier A - electrically isolated from OUT B; channel separation >110dB minimizes crosstalk. |
| 7 | –IN A | Inverting input of Amplifier A - matched to –IN B for differential pair configurations (ΔVOS ≤150µV). |
| 8 | +IN A | Non-inverting input of Amplifier A - pin 1 marker adjacent; requires symmetrical layout to minimize thermocouple errors. |
Key Features
| Feature | Design Value |
|---|---|
| Low 1/f noise | 200nVP-P (0.1Hz–10Hz) - critical for DC-stable sensor outputs in weigh scales and medical ECG front-ends. |
| Rail-to-rail output | Swings to within 40mV of V+ and V– - eliminates need for level-shifting in low-voltage ADC driver stages. |
| High PSRR/CMRR | ≥112dB over –40°C to 85°C - rejects power supply ripple and common-mode interference in motor control feedback loops. |
| Micro-power operation | 145µA per amplifier at 5V - enables integration into always-on IoT edge nodes with sub-1mW total analog front-end power. |
| Factory-trimmed offset | 35µV max (A-grade) - reduces calibration overhead in factory-programmed sensor modules. |
Applications
| Thermocouple Amplifier | Precision Photodiode Amplifier |
|---|---|
|
Use Scenario: Amplifying µV-level Seebeck voltages from K-type thermocouples in HVAC controllers. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier with cold-junction compensation interface. Use Value: 9.5nV/√Hz noise floor and 0.8µV/°C max VOS drift ensure ±0.5°C accuracy over 0–100°C range without recalibration. |
Use Scenario: Converting nanoamp photocurrents from IR photodiodes in gas analyzers. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with guarded input and low-input-bias-current topology. Use Value: ±800pA max input bias current enables stable 100kΩ–10MΩ feedback resistors, preserving linearity across 4-decade light intensity range. |
| Instrumentation Amplifier Front-End | Battery-Powered Precision System |
|
Use Scenario: First-stage gain block in 3-op-amp INA for bridge sensor readout in portable load cells. IC Role / Device Role / Timing Role: Dual-channel matched amplifier providing gain and common-mode rejection before difference stage. Use Value: 150µV max input offset match (ΔVOS) and >110dB channel separation minimize gain/offset errors in ratiometric measurements. |
Use Scenario: Signal conditioning in handheld multimeters powered by CR2032 coin cells. IC Role / Device Role / Timing Role: Low-power precision amplifier for auto-ranging ADC reference buffers and input scaling. Use Value: 145µA supply current per amplifier extends battery life to >2 years at 10-second measurement intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6014ACS8#PBF | Lower 35µV max VOS (vs 75µV), 0.8µV/°C max drift (vs 1.2µV/°C), same SO-8 package and pinout. | Required where <0.002% absolute accuracy needed over temperature - e.g., calibrated test equipment. | Select when offset drift budget is tighter than ±10µV over 125°C range; adds ~15% cost premium. |
| LT6011CS8#PBF | Unity-gain stable, higher 14nV/√Hz noise, same 145µA supply current, identical SO-8 footprint. | Suitable for unity-gain buffers, active filters, or gain <5 configurations where LT6014CS8#PBF cannot be used. | Choose only if circuit requires AV = 1–4; trade-off is +47% voltage noise and reduced DC precision (120µV VOS max). |
Compared with LT6014CS8#PBF, LT6014ACS8#PBF improves DC accuracy at higher cost, while LT6011CS8#PBF sacrifices noise and offset performance for design flexibility in low-gain topologies - neither is pin-compatible drop-in replacement due to differing stability requirements and internal compensation.
Availability
LT6014CS8#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, precision photodiode interfaces, and battery-powered instrumentation requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LT6014CS8#PBF 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
Analog Devices acquired Linear Technology in 2017 and maintains its precision analog portfolio with rigorous automotive and industrial qualification standards.
The LT6013/LT6014 family was designed specifically for ultra-low-noise, micro-power precision signal conditioning in sensor front-ends - balancing 9.5nV/√Hz noise, rail-to-rail output, and sub-150µA quiescent current in compact SO-8 and DFN packages.
FAQ
Is LT6014CS8#PBF unity-gain stable?
No, LT6014CS8#PBF is intentionally decompensated for minimum noise and is stable only at closed-loop gains ≥5. Using it in unity-gain or gain-of-2 configurations risks oscillation. For unity-gain applications, select LT6011CS8#PBF - a functionally similar but unity-gain stable variant with higher 14nV/√Hz noise.
What is the maximum capacitive load LT6014CS8#PBF can drive?
LT6014CS8#PBF can reliably drive up to 500pF at AV ≥5. At higher gains (e.g., AV = 10), it supports larger loads. For loads exceeding 500pF, add a 10–50Ω series resistor between output and capacitor to isolate the reactive load and preserve phase margin - verified in Figure 22 of the official datasheet.
Does LT6014CS8#PBF support single-supply operation?
Yes, LT6014CS8#PBF operates from 2.7V single supply (V+ to ground) with rail-to-rail output swing and guaranteed input common-mode range from 0.7V to 3.8V (at 5V supply). Input stage limits prevent operation beyond V– + 1V and V+ – 1.2V - design accordingly for mid-rail biasing.
How does LT6014CS8#PBF handle input overvoltage conditions?
LT6014CS8#PBF includes internal 500Ω series resistors and back-to-back diodes on both inputs, limiting differential input current to ≤10mA for ≤10V differential stress. For >10V expected transients (e.g., ESD or sensor disconnect), external 1kΩ resistors are recommended - per Linear's Application Note 60134, Section "Input Protection".
What is the thermal performance of LT6014CS8#PBF in SO-8 package?
LT6014CS8#PBF in SO-8 has θJA = 190°C/W (no PCB copper) and TJMAX = 150°C. With 1in² 2oz copper on both layers, θJA drops to ~65°C/W. At 290µA total supply current (both amps), power dissipation is ~1.45mW at 5V - resulting in <0.1°C rise above ambient under typical layout, well within safe operating area.
LT6014CS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.2V/µs
- Gain Bandwidth Product:
- 1.6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 150 pA
- Voltage - Input Offset:
- 35 µV
- Current - Supply:
- 200µA (x2 Channels)
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT6014CS8#PBF FAQ
1.How can I place an order for LT6014CS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6014CS8#PBF 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 LT6014CS8#PBF reliable?
The price and inventory of LT6014CS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6014CS8#PBF is usually 5 days.
3.What payment methods are accepted for LT6014CS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6014CS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6014CS8#PBF?
LT6014CS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6014CS8#PBF 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 LT6014CS8#PBF?
For technical support, including LT6014CS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6014CS8#PBF requirements.
6.How does Aetrix verify that LT6014CS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT6014CS8#PBF 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 LT6014CS8#PBF meets industry standards.
7.What is the process for return or replacement of LT6014CS8#PBF?
All LT6014CS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6014CS8#PBF, 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 LT6014CS8#PBF part is unused and in its original packaging.
Return procedure for LT6014CS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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