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Analog Devices Inc. LT6012AIS#PBF
- Part No.:
- LT6012AIS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT6012AIS#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,368
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Product details
Overview
LT6012AIS#PBF from Analog Devices (formerly Linear Technology) is a quad precision rail-to-rail output operational amplifier optimized for low-power, high-accuracy signal conditioning. It delivers 135µA supply current per amplifier, 14nV/√Hz input voltage noise, and <60µV max input offset voltage over –40°C to 85°C - enabling use in thermocouple amplifiers and battery-powered precision systems.
For engineers reviewing the LT6012AIS#PBF datasheet, LT6012AIS#PBF pinout, LT6012AIS#PBF application, or LT6012AIS#PBF equivalent, key selection criteria include guaranteed rail-to-rail output swing (≤65mV from rails at 1mA load), 0.8µV/°C max VOS drift, 120dB min open-loop gain at ±15V, and SO-14 package compatibility with industrial temperature range operation.
Technical Context
The LT6012AIS#PBF employs a precision bipolar input stage with on-chip trimming to achieve sub-60µV offset and 0.8µV/°C drift, supported by internal 500Ω series input resistors and back-to-back diode protection. Its rail-to-rail output stage uses complementary push-pull circuitry to deliver 1mA sink/source capability within 65mV of either supply rail.
It operates from 2.7V single supply up to ±18V dual supply, with PSRR ≥112dB and CMRR ≥107dB across the full –40°C to 85°C range. Channel separation exceeds 110dB, ensuring minimal crosstalk in multi-channel instrumentation designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 135µA per amplifier - enables ultra-low-power operation in portable and energy-harvested sensor nodes. |
| Input Offset Voltage | ≤60µV max (–40°C to 85°C) - supports 16-bit+ DC accuracy without external calibration. |
| Input Noise Density | 14nV/√Hz at 1kHz - preserves SNR in low-level sensor interfaces like photo diode amplifiers. |
| Rail-to-Rail Output Swing | ≤65mV from V+ or V– at 1mA load - maximizes dynamic range in low-voltage (e.g., 3.3V or 5V) single-supply systems. |
| Gain Bandwidth Product | 250kHz typical - sufficient for precision DC-coupled and low-frequency AC signal paths (e.g., strain gauge, RTD bridges). |
| Common Mode Rejection | ≥107dB (–40°C to 85°C) - rejects power supply ripple and shared-noise coupling in dense PCB layouts. |
| Operating Temperature | –40°C to 85°C - qualified for industrial control, automotive cabin electronics, and outdoor instrumentation. |
Pinout & Package
LT6012AIS#PBF is housed in a 14-lead plastic SO (S14) package, 0.150-inch narrow body, with exposed pad not connected. Pin 1 is marked via laser top-side marking "LT6012AIS".
| 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 (120GΩ common-mode) requiring guarded layout. |
| 3 | +IN A | Non-inverting input of Amp A - matched bias current path; avoid unequal source impedances. |
| 4 | V+ | Positive supply rail - decoupling capacitor (0.1µF) required within 1cm for stability. |
| 5 | +IN B | Non-inverting input of Amp B - electrically isolated from other inputs; no internal cross-coupling. |
| 6 | –IN B | Inverting input of Amp B - same ESD protection and bias structure as Pin 2. |
| 7 | OUT B | Amplifier B output - independent channel; shares V+ and V– with all amplifiers. |
| 8 | OUT D | Amplifier D output - fourth channel; pin-compatible with standard SO-14 op amp footprints. |
| 9 | –IN D | Inverting input of Amp D - matches electrical specs of Pins 2 and 6; validated for matched performance. |
| 10 | +IN D | Non-inverting input of Amp D - identical input structure; ∆VOS ≤120µV vs. any other channel. |
| 11 | V– | Negative supply rail - connects to ground (single supply) or negative rail (dual supply); undersides not internally tied. |
| 12 | +IN C | Non-inverting input of Amp C - third channel input; fully specified for matching and noise performance. |
| 13 | –IN C | Inverting input of Amp C - supports independent feedback networks per channel. |
| 14 | OUT C | Amplifier C output - completes quad configuration; all four outputs fully rail-to-rail capable. |
Key Features
| Feature | Design Value |
|---|---|
| Trimmed input offset voltage | Guaranteed ≤60µV max over –40°C to 85°C eliminates need for system-level nulling circuits. |
| Rail-to-rail output stage | Swings to within 40–65mV of V+ or V– under 1mA load, preserving >98% of supply voltage dynamic range. |
| Low input bias current | ±300pA max (–40°C to 85°C) enables accurate amplification of high-impedance sources (e.g., pH electrodes, piezoelectric sensors). |
| High open-loop gain | ≥120dB at ±15V ensures <0.001% gain error in unity-gain buffer and precision gain stages. |
| Matched amplifier characteristics | Offset match ≤120µV and CMRR match ≥101dB support accurate differential and instrumentation amplifier implementations. |
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: Primary DC-coupled instrumentation amplifier front-end with cold-junction compensation interface. Use Value: 60µV max VOS and 0.8µV/°C drift enable ±0.5°C measurement accuracy over full industrial temperature range without recalibration. | Use Scenario: Transimpedance amplification of nanoamp-level photocurrents from silicon photodiodes in spectrophotometers. IC Role / Device Role / Timing Role: Low-noise, low-input-bias transimpedance amplifier with guarded input traces. Use Value: 14nV/√Hz noise density and ±300pA input bias current minimize Johnson and shot noise contributions at 100kΩ–1MΩ feedback resistances. |
| Instrumentation Amplifiers | Battery-Powered Precision Systems |
Use Scenario: Building 3-op-amp in-amps for medical ECG front-ends and bridge-based load cell readouts. IC Role / Device Role / Timing Role: Dual-channel matched pair for input buffers, providing common-mode rejection and gain-setting stability. Use Value: Channel-to-channel VOS match ≤120µV and ∆CMRR ≥101dB ensure >100dB common-mode suppression in production-grade in-amps. | Use Scenario: Signal conditioning in handheld multimeters, portable gas analyzers, and wireless sensor nodes. IC Role / Device Role / Timing Role: Quad op amp serving as reference buffer, sensor amplifier, filter stage, and ADC driver in single-chip analog subsystem. Use Value: 135µA per amplifier total supply current allows >10-year battery life in coin-cell-powered devices operating at 1–10Hz sampling rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6012ACS#PBF | Same SO-14 package and quad topology, but rated for 0°C to 70°C only; offset voltage spec relaxed to 75µV max (–40°C to 85°C not guaranteed). | Not suitable for uncontrolled ambient environments; limited to commercial-grade indoor equipment. | Select LT6012ACS#PBF only if cost sensitivity outweighs temperature assurance and long-term drift requirements. |
| OP4177ARUZ | Quad precision op amp with lower 600nV/°C drift but higher 500µA supply current; no rail-to-rail output (clips ~1.2V from rails). | Requires higher supply headroom; unsuitable for 3.3V single-supply systems where full-scale swing is critical. | Choose OP4177ARUZ when ultra-low drift dominates over power and output swing constraints. |
Compared with LT6012ACS#PBF, the LT6012AIS#PBF guarantees full industrial temperature performance and tighter offset specs; versus OP4177ARUZ, it trades absolute drift for 3.7× lower quiescent current and true rail-to-rail output - making it superior for space-constrained, battery-operated, or low-voltage precision applications.
Availability
LT6012AIS#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, precision photo diode amplifiers, instrumentation amplifiers, battery-powered precision systems, and low-voltage precision systems requiring stable component supply across extended temperature ranges.
Supply support for LT6012AIS#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 LT6011/LT6012 product line was designed by Linear Technology specifically for ultra-low-power, high-accuracy DC signal conditioning - targeting applications where offset, drift, noise, and supply current must be simultaneously minimized without sacrificing robustness.
FAQ
What is the maximum guaranteed input offset voltage for LT6012AIS#PBF over its full operating temperature range?
The LT6012AIS#PBF has a maximum guaranteed input offset voltage of 60µV over the full –40°C to 85°C operating temperature range. This specification applies to the "A" grade in SO-14 packaging and is verified per the manufacturer's production test flow - enabling high-accuracy DC measurements without system-level trimming.
Does LT6012AIS#PBF support true rail-to-rail output swing, and what is the worst-case saturation voltage?
Yes, the LT6012AIS#PBF supports true rail-to-rail output swing. Under 1mA load, the worst-case saturation voltage is 220mV from V+ (source) and 275mV from V– (sink) at –40°C to 85°C. At no load, it swings within 65mV of either rail - confirmed in both single-supply (5V) and dual-supply (±15V) configurations per the official datasheet.
What is the supply current per amplifier for LT6012AIS#PBF, and how does it vary with temperature?
The LT6012AIS#PBF draws 135µA per amplifier at 25°C and remains within 150µA up to 85°C. The datasheet specifies 135µA (typical) and 190µA (max) over –40°C to 85°C - making it among the lowest-power precision op amps available for quad-channel operation.
Can LT6012AIS#PBF drive capacitive loads, and what is the recommended limit for unity-gain stability?
Yes, the LT6012AIS#PBF can drive up to 500pF capacitive loads in unity-gain configuration while maintaining stability. For loads exceeding 500pF, a small series resistor (e.g., 10–50Ω) between the output and load is recommended to preserve phase margin and prevent peaking or oscillation.
Is LT6012AIS#PBF pin-compatible with other quad op amps in SO-14 packages, and what are the key layout considerations?
The LT6012AIS#PBF uses a standard SO-14 pinout (per JEDEC MS-012) and is pin-compatible with industry-standard quad op amps such as LM324 and OP4177 in the same footprint. Key layout considerations include guarding the +IN/–IN traces, placing 0.1µF ceramic decoupling capacitors within 1cm of Pins 4 (V+) and 11 (V–), and avoiding thermal gradients across input pins to prevent thermocouple-induced errors.
LT6012AIS#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
LT6012AIS#PBF FAQ
1.How can I place an order for LT6012AIS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6012AIS#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 LT6012AIS#PBF reliable?
The price and inventory of LT6012AIS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6012AIS#PBF is usually 5 days.
3.What payment methods are accepted for LT6012AIS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6012AIS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6012AIS#PBF?
LT6012AIS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6012AIS#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 LT6012AIS#PBF?
For technical support, including LT6012AIS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6012AIS#PBF requirements.
6.How does Aetrix verify that LT6012AIS#PBF is sourced from the original manufacturer or authorized distributors?
All LT6012AIS#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 LT6012AIS#PBF meets industry standards.
7.What is the process for return or replacement of LT6012AIS#PBF?
All LT6012AIS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6012AIS#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 LT6012AIS#PBF part is unused and in its original packaging.
Return procedure for LT6012AIS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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