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Analog Devices Inc. LT6014AIS8#PBF
- Part No.:
- LT6014AIS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT6014AIS8#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:102
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Product details
Overview
LT6014AIS8#PBF from Analog Devices (acquired Linear Technology) is a dual precision rail-to-rail output operational amplifier optimized for low-noise, micro-power sensor interface applications. It delivers 9.5nV/√Hz input voltage noise at 1kHz, ≤35µV max input offset voltage, 145µA supply current per amplifier, and stable operation at gain ≥5 across –40°C to 85°C. It is used in thermocouple amplifiers and battery-powered instrumentation where precision, low power, and rail-to-rail swing are critical.
For engineers reviewing the LT6014AIS8#PBF datasheet, LT6014AIS8#PBF pinout, LT6014AIS8#PBF application, or LT6014AIS8#PBF equivalent, key selection criteria include guaranteed AV ≥5 stability, 250pA max input bias current (A-grade), SO-8 package compatibility, and verified performance at ±15V and 5V supplies - all confirmed across industrial temperature range.
Technical Context
The LT6014AIS8#PBF employs a decompensated architecture requiring minimum closed-loop gain of 5 for stability, enabling lower noise and higher bandwidth than unity-gain-stable alternatives. Its input stage uses on-chip bias current cancellation, resulting in uncorrelated IB+ and IB– and making input resistor balancing counterproductive.
It features rail-to-rail output swing (within 40mV of rails at no load), 1.4MHz gain-bandwidth product, and robust capacitive load drive up to 500pF at AV = 5. CMRR and PSRR exceed 112dB over full frequency range, with matched-channel specifications (e.g., ∆VOS ≤120µV) validated for dual-amplifier instrumentation topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ≤35µV max (A-grade, 0°C to 70°C); ensures high DC accuracy without trimming in precision sensor front-ends |
| Input Voltage Noise | 9.5nV/√Hz at 1kHz; enables low-noise amplification of µV-level signals from thermocouples or photodiodes |
| Supply Current | 145µA per amplifier at 5V; supports multi-year battery life in portable instrumentation |
| Gain Bandwidth Product | 1.4MHz; supports stable signal conditioning up to ~280kHz at AV = 5 |
| Input Bias Current | ±250pA max (A-grade, 0°C to 70°C); preserves accuracy with high-impedance sources >100MΩ |
| Output Swing | Rail-to-rail (within 40mV of V+ or V– at no load); maximizes dynamic range in 3.3V or 5V single-supply systems |
| Operating Temperature | –40°C to 85°C; qualified for industrial and automotive under-hood sensor modules |
Pinout & Package
LT6014AIS8#PBF is housed in an 8-lead plastic SO (SO-8, narrow 0.150") package with exposed pad connected to V–. Pin 1 is marked by notch or dot; pin numbering follows standard SO-8 counterclockwise layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive Supply Rail | Accepts 2.7V to ±18V; must be decoupled locally to minimize PSRR degradation |
| OUT B | Amplifier B Output | Delivers rail-to-rail output; capable of sourcing/sinking 8mA; requires load isolation for >500pF capacitance |
| –IN B | Inverting Input B | High-impedance node; protected by 500Ω series resistors and back-to-back diodes |
| +IN B | Non-inverting Input B | High-impedance node; same protection as –IN B; common-mode range limited to V– +1V to V+ –1.2V |
| +IN A | Non-inverting Input A | Independent high-Z input; matches –IN A for differential pair use; avoid thermal gradients near traces |
| –IN A | Inverting Input A | Independent high-Z input; uncorrelated bias current vs +IN A; guard ring recommended for >1GΩ source impedances |
| OUT A | Amplifier A Output | Identical specs to OUT B; channel separation ≥110dB ensures minimal crosstalk in dual-channel designs |
| V– | Negative Supply Rail | Connected to exposed pad; PCB thermal relief required for reliable 150°C junction temp handling |
Key Features
| Feature | Design Value |
|---|---|
| Low 1/f noise | 200nVP-P (0.1Hz–10Hz); minimizes drift-induced errors in slow-sampling precision measurement |
| AV ≥5 stability | Guaranteed phase margin >60° at gain ≥5; eliminates need for external compensation in most transducer interfaces |
| Rail-to-rail output | Swings within 40mV of either rail at no load; enables full utilization of ADC input range in single-supply data acquisition |
| Input offset drift | 0.8µV/°C max (S8 package); maintains <100µV total drift over –40°C to 85°C operating range |
| Channel matching | ∆VOS ≤120µV (A-grade, 0°C–70°C); supports accurate differential amplification without calibration |
Applications
| Thermocouple Amplifier | Precision Photodiode Amplifier |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltages from Type-K thermocouples in industrial process monitoring. IC Role / Device Role / Timing Role: Dual op-amp configured as low-noise, high-common-mode-rejection instrumentation amplifier front-end. Use Value: 9.5nV/√Hz noise and ≤35µV offset enable resolution better than 0.1°C without cold-junction compensation hardware. | Use Scenario: Converting nanoamp photocurrent from IR photodiodes in gas sensing modules. IC Role / Device Role / Timing Role: Transimpedance amplifier with guarded input and rail-to-rail output driving 12-bit SAR ADC. Use Value: 250pA max input bias current prevents signal loss across 100MΩ feedback resistors; low drift ensures stable calibration over temperature. |
| Micro-Power Sensor Interface | Battery-Powered Precision System |
Use Scenario: Signal conditioning for MEMS pressure sensors in wireless IoT nodes with 10-year battery life targets. IC Role / Device Role / Timing Role: Dual-channel signal conditioner providing excitation, amplification, and level-shifting in ultra-low-power mode. Use Value: 145µA per amplifier enables sub-300µA total analog front-end current, extending CR2032 battery life beyond 8 years. | Use Scenario: Front-end for handheld multimeters and portable oscilloscopes powered by two AA cells. IC Role / Device Role / Timing Role: Dual op-amp implementing auto-zeroed DC-coupled gain stages and reference buffers. Use Value: Guaranteed operation down to 2.7V supply and rail-to-rail output preserve full dynamic range even as batteries discharge from 3.2V to 2.8V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6014ACS8#PBF | Higher max offset (60µV), wider temp range (0°C–70°C only), no guaranteed A-grade specs | Suitable for cost-sensitive commercial equipment where <0.1°C thermocouple accuracy is not required | Select when budget constraints outweigh need for guaranteed 35µV offset and extended temperature validation |
| LT6014AIDD#PBF | Same A-grade specs but in 3mm×3mm DFN package; 125°C max junction temp vs 150°C in SO-8 | Better for space-constrained PCBs; requires different thermal management due to exposed V– pad | Select when board area is critical and thermal design accommodates lower θJA (160°C/W vs 190°C/W) |
Compared with LT6014ACS8#PBF, the LT6014AIS8#PBF provides tighter offset and drift specs validated across –40°C to 85°C, while LT6014AIDD#PBF offers identical electrical performance in a smaller footprint - both require revalidation of layout, thermal, and stability margins.
Availability
LT6014AIS8#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, precision photodiode amplifiers, and micro-power sensor interface applications requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.
Supply support for LT6014AIS8#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, formed through the acquisition of Linear Technology in 2017.
The LT6013/LT6014 family was designed by Linear Technology specifically for precision, low-noise, micro-power sensor signal conditioning - targeting applications where offset, drift, noise, and supply current must be simultaneously minimized without sacrificing bandwidth.
FAQ
What is the minimum stable gain for LT6014AIS8#PBF?
The LT6014AIS8#PBF is decompensated and requires a minimum closed-loop gain of 5 for stability. Configurations with gain <5 - including unity-gain followers - risk oscillation unless external compensation (e.g., RC network across inputs) is applied. This is explicitly documented in the datasheet's "Not Unity-Gain Stable" section and verified in transient response testing.
Does LT6014AIS8#PBF support rail-to-rail input operation?
No, the LT6014AIS8#PBF does not support rail-to-rail input. Its input common-mode voltage range is specified as V– +1V to V+ –1.2V. Exceeding this range causes gain collapse but no phase reversal. For true rail-to-rail input, consider alternatives like the LT1881 or LT6011, though they trade off higher noise or lower bandwidth.
What is the maximum capacitive load LT6014AIS8#PBF can drive reliably?
The LT6014AIS8#PBF can drive up to 500pF capacitive load while maintaining stability at AV = 5. At higher gains, drive capability increases; at lower gains, it decreases. For loads >500pF, a small series resistor (e.g., 10–50Ω) between output and load restores phase margin - confirmed in the "Capacitive Loads" application note section of the LT6014 datasheet.
Is LT6014AIS8#PBF pin-compatible with LT6014ACS8#PBF?
Yes, LT6014AIS8#PBF and LT6014ACS8#PBF share identical SO-8 pinout, footprint, and solder pad layout. Both use the same LBCB package drawing (LTC DWG #05-08-1610). However, the A-grade version guarantees tighter offset, drift, and bias current specs across the full –40°C to 85°C range, whereas the C-grade is only tested at 25°C and characterized for that range.
How does input bias current matching affect dual-amplifier applications using LT6014AIS8#PBF?
For LT6014AIS8#PBF, ∆IB (input bias current match) is specified at ≤800pA (max, 0°C–70°C), ensuring minimal offset error in differential configurations like instrumentation amplifiers. This matching - combined with ∆VOS ≤120µV - allows high-accuracy difference amplification without trimming, directly supporting applications such as precision bridge sensor readouts where channel-to-channel tracking is critical.
LT6014AIS8#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:
- 1.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 pA
- Voltage - Input Offset:
- 30 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT6014AIS8#PBF FAQ
1.How can I place an order for LT6014AIS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6014AIS8#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 LT6014AIS8#PBF reliable?
The price and inventory of LT6014AIS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6014AIS8#PBF is usually 5 days.
3.What payment methods are accepted for LT6014AIS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6014AIS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6014AIS8#PBF?
LT6014AIS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6014AIS8#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 LT6014AIS8#PBF?
For technical support, including LT6014AIS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6014AIS8#PBF requirements.
6.How does Aetrix verify that LT6014AIS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT6014AIS8#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 LT6014AIS8#PBF meets industry standards.
7.What is the process for return or replacement of LT6014AIS8#PBF?
All LT6014AIS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6014AIS8#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 LT6014AIS8#PBF part is unused and in its original packaging.
Return procedure for LT6014AIS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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