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Analog Devices Inc. LT6012IS#PBF
- Part No.:
- LT6012IS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT6012IS#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:510
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Product details
Overview
LT6012IS#PBF from Analog Devices (formerly Linear Technology) is a quad rail-to-rail output precision operational amplifier optimized for low-power, high-accuracy signal conditioning. It delivers 135µA supply current per amplifier, 14nV/√Hz input voltage noise, <60µV max input offset voltage (–40°C to 85°C), and rail-to-rail output swing within 40mV of either supply rail at 5V. It is widely used in thermocouple amplifiers and battery-powered precision systems.
For engineers reviewing the LT6012IS#PBF datasheet, LT6012IS#PBF pinout, LT6012IS#PBF application, or LT6012IS#PBF equivalent, key selection criteria include guaranteed –40°C to 85°C operation, 300pA max input bias current, 120dB min voltage gain at ±15V, 0.8µV/°C max VOS drift, and SO-14 package compatibility with legacy layouts.
Technical Context
The LT6012IS#PBF employs a precision bipolar input stage with on-chip trimming to achieve sub-60µV offset and low drift, combined with a rail-to-rail output stage using complementary NPN/PNP drivers. Its 300pA max input bias current enables high-impedance sensor interfacing without significant error.
It operates from 2.7V single supply up to ±18V dual supply, with full specifications guaranteed across –40°C to 85°C. Channel separation exceeds 110dB, and PSRR/CMRR remain >112dB over temperature - critical for precision instrumentation in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 135µA per amplifier at 5V - enables multi-channel precision sensing in energy-constrained systems. |
| Input Offset Voltage | ≤60µV max (–40°C to 85°C) - supports 16-bit+ accuracy without external calibration. |
| Input Bias Current | ±300pA max (–40°C to 85°C) - preserves accuracy with >10MΩ source impedances. |
| Output Swing | Within 40mV of V+ and V– at 5V - delivers full dynamic range in low-voltage single-supply designs. |
| Input Noise Density | 14nV/√Hz at 1kHz - ensures minimal contribution to total system noise in sensor front-ends. |
| Gain Bandwidth | 225kHz min (–40°C to 85°C) - sufficient for DC-coupled instrumentation and slow-scan data acquisition. |
| Common-Mode Rejection | 107dB min (–40°C to 85°C) - rejects power supply and ground noise in differential measurements. |
Pinout & Package
LT6012IS#PBF is housed in a 14-lead plastic SO (S14) package with standard narrow-body footprint (0.150" width). The exposed pad is not present; thermal performance relies on PCB copper area under pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to 1mA while maintaining rail-to-rail swing. |
| 2 | –IN A | Inverting input of Amp A - high-impedance node requiring guard ring in precision layouts. |
| 3 | +IN A | Non-inverting input of Amp A - matched to –IN A for optimal CMRR and offset matching. |
| 4 | V+ | Positive supply rail - accepts 2.7V to 36V or ±1.35V to ±18V operation. |
| 5 | +IN B | Non-inverting input of Amp B - electrically isolated but thermally coupled to adjacent amplifiers. |
| 6 | –IN B | Inverting input of Amp B - shares same input stage architecture and matching specs as Amp A. |
| 7 | OUT B | Amplifier B output - identical performance to OUT A; channel separation >110dB prevents crosstalk. |
| 8 | OUT D | Amplifier D output - fourth independent channel; pin 8 is not NC (as in GN package). |
| 9 | –IN D | Inverting input of Amp D - matches input bias and offset specs across all four channels. |
| 10 | +IN D | Non-inverting input of Amp D - supports common-mode input range from V– +1V to V+ –1.2V. |
| 11 | V– | Negative supply rail - referenced for all outputs and inputs; undersides not internally tied to V–. |
| 12 | +IN C | Non-inverting input of Amp C - enables simultaneous 4-channel signal conditioning on one IC. |
| 13 | –IN C | Inverting input of Amp C - benefits from same low-drift trimming and noise performance as other amps. |
| 14 | OUT C | Amplifier C output - fully specified for settling time (45µs to 0.01%), slew rate (0.06V/µs), and load drive. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full-scale signal fidelity down to 40mV from rails at 5V - eliminates headroom loss in low-voltage systems. |
| Guaranteed –40°C to 85°C operation | All electrical specs validated across industrial temperature range - no derating required for embedded deployment. |
| Low 14nV/√Hz input noise | Enables high-resolution measurement of µV-level sensor signals (e.g., thermocouples) without noise-dominated readings. |
| 300pA max input bias current | Supports direct connection to high-Z sources (e.g., pH electrodes, piezoelectric sensors) without gain error or drift. |
| 120dB min open-loop gain at ±15V | Ensures <0.001% gain error in unity-gain buffers and stable closed-loop performance with 10kΩ feedback networks. |
| Quad configuration in SO-14 | Reduces board space and component count vs discrete op-amps - improves channel-to-channel matching and thermal tracking. |
Applications
| Thermocouple Amplifiers | Precision Photo Diode Amplifiers |
|---|---|
|
Use Scenario: Amplifying µV-level Seebeck voltages from K-type thermocouples in industrial ovens and HVAC sensors. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with low VOS and ultra-low IB to avoid cold-junction compensation errors. Use Value: Enables direct thermocouple readout with <±1°C accuracy over –40°C to 85°C without external chopper or auto-zero circuitry. |
Use Scenario: Converting nanoamp-level photocurrent from silicon photodiodes in medical pulse oximeters and environmental light meters. IC Role / Device Role / Timing Role: Transimpedance amplifier with low input bias current and low noise to maximize SNR at 100kΩ–10MΩ feedback resistors. Use Value: Achieves 16-bit-equivalent resolution in photodiode circuits without compromising bandwidth or introducing dark-current-induced offset drift. |
| Instrumentation Amplifiers | Battery-Powered Precision Systems |
|
Use Scenario: Serving as matched gain-stage amplifiers in 3-op-amp IA configurations for strain gauge and bridge sensor interfaces. IC Role / Device Role / Timing Role: Dual or quad amplifier providing tightly matched VOS, IB, and CMRR across channels to minimize common-mode error. Use Value: Delivers >100dB CMRR in final IA design due to <50µV offset match and >101dB ∆CMRR between channels. |
Use Scenario: Signal conditioning in portable gas analyzers and handheld multimeters powered by two AA cells (3V nominal). IC Role / Device Role / Timing Role: Low-quiescent-current precision op-amp enabling >100-hour battery life while maintaining 100ppm linearity. Use Value: Draws only 540µA total for all four amplifiers at 3V - extends runtime without sacrificing DC accuracy or noise performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP4177ARZ | Higher 2.8nV/√Hz noise, 1.2µV/°C VOS drift, 1.2mA supply current per amp - lower power efficiency and higher noise floor. | Targeted at high-speed precision (1.3MHz GBW) rather than ultra-low-power DC applications. | Select OP4177ARZ only when higher bandwidth (>1MHz) and better AC performance outweigh LT6012IS#PBF's 135µA/quiescent advantage. |
| ADA4522-4ARUZ | Zero-drift architecture; 0.005µV/°C drift, but 550µA supply current per amp and 7.2nV/√Hz noise - trades power for drift cancellation. | Suited for long-term DC stability-critical applications (e.g., weigh scales), not low-power portable use. | Choose ADA4522-4ARUZ where near-zero drift dominates requirements, accepting 4× higher quiescent current and larger SO-16 footprint. |
Compared with OP4177ARZ and ADA4522-4ARUZ, the LT6012IS#PBF uniquely balances sub-60µV offset, 14nV/√Hz noise, and 135µA supply current in a compact SO-14 package - making it optimal for battery-powered, wide-temperature, multi-channel precision analog front-ends where power, noise, and size are co-constrained.
Availability
LT6012IS#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, precision photo diode amplifiers, and instrumentation amplifiers requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for LT6012IS#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LT6012IS#PBF belongs to Linear Technology's precision op amp product line, designed specifically for low-power, high-accuracy DC signal conditioning in industrial, medical, and portable instrumentation.
FAQ
What is the operating temperature range guaranteed for LT6012IS#PBF?
The LT6012IS#PBF is fully specified and guaranteed over –40°C to +85°C. Unlike commercial-grade variants (e.g., LT6012CS#PBF), the "I" grade undergoes 100% testing across this full industrial range, ensuring all parameters - including input offset voltage, bias current, and PSRR - meet datasheet limits without derating.
Does LT6012IS#PBF support rail-to-rail input operation?
No, the LT6012IS#PBF features rail-to-rail *output* swing only. Its input common-mode range is limited to V– +1V to V+ –1.2V. Exceeding this range causes gain collapse but no phase reversal. For true rail-to-rail input capability, consider alternatives like the LTC2050 or ADA4522 series.
What is the maximum capacitive load the LT6012IS#PBF can drive in unity-gain configuration?
The LT6012IS#PBF can directly drive up to 500pF in unity-gain buffer configuration without instability. For loads exceeding 500pF, adding a small series resistor (e.g., 10–50Ω) between the output and capacitor restores phase margin and prevents peaking or oscillation.
How does the input bias current matching between channels affect LT6012IS#PBF performance in instrumentation amplifier designs?
The LT6012IS#PBF guarantees ≤600pA input bias current match (∆IB) across channels at –40°C to 85°C. This tight matching minimizes offset errors in 3-op-amp IA topologies where mismatched IB flows through unequal gain-setting resistors - preserving CMRR and reducing calibration burden in production test.
Can LT6012IS#PBF be used with a single 3.3V supply?
Yes, the LT6012IS#PBF operates from 2.7V to 36V single supply (or ±1.35V to ±18V dual supply). At 3.3V, its output swings to within ~45mV of each rail, and all key specs - including 135µA supply current and 60µV max VOS - remain valid across –40°C to 85°C.
LT6012IS#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.11V/µs
- Gain Bandwidth Product:
- 350 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 pA
- Voltage - Input Offset:
- 35 µV
- Current - Supply:
- 135µA (x4 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:
- 14-SO
LT6012IS#PBF FAQ
1.How can I place an order for LT6012IS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6012IS#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 LT6012IS#PBF reliable?
The price and inventory of LT6012IS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6012IS#PBF is usually 5 days.
3.What payment methods are accepted for LT6012IS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6012IS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6012IS#PBF?
LT6012IS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6012IS#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 LT6012IS#PBF?
For technical support, including LT6012IS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6012IS#PBF requirements.
6.How does Aetrix verify that LT6012IS#PBF is sourced from the original manufacturer or authorized distributors?
All LT6012IS#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 LT6012IS#PBF meets industry standards.
7.What is the process for return or replacement of LT6012IS#PBF?
All LT6012IS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6012IS#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 LT6012IS#PBF part is unused and in its original packaging.
Return procedure for LT6012IS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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