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Analog Devices Inc. LT6012IGN#PBF
- Part No.:
- LT6012IGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LT6012IGN#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:106
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Product details
Overview
LT6012IGN#PBF from Analog Devices (formerly Linear Technology) is a quad rail-to-rail output precision operational amplifier optimized for low-noise, low-power, high-accuracy signal conditioning. It delivers 14nV/√Hz input voltage noise density, ≤85µV max input offset voltage (–40°C to 85°C), 300pA max input bias current, and 135µA supply current per amplifier on 5V. It is used in thermocouple amplifiers and battery-powered precision instrumentation where stable DC accuracy and low thermal drift are critical.
For engineers reviewing the LT6012IGN#PBF datasheet, LT6012IGN#PBF pinout, LT6012IGN#PBF application, or LT6012IGN#PBF equivalent, key selection criteria include guaranteed –40°C to 85°C operation, 16-pin SSOP package compatibility, rail-to-rail output swing within 40mV of rails, and matching performance across all four channels for multi-channel sensor front-ends.
Technical Context
The LT6012IGN#PBF implements a precision bipolar input stage with on-chip input offset trimming and bias current cancellation circuitry, enabling sub-100µV offset and <1µV/°C drift over temperature. Its architecture supports single-supply operation down to 2.7V while maintaining 120dB minimum open-loop gain and >107dB CMRR at 25°C.
It features internal 500Ω series input resistors and back-to-back diodes for ±10V differential input protection, and its rail-to-rail output stage uses complementary push-pull drivers capable of sourcing/sinking ≥10mA. Channel separation exceeds 110dB, ensuring minimal crosstalk in multi-amplifier configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ≤85 µV max over –40°C to 85°C - ensures high DC accuracy without external trimming in precision sensor interfaces. |
| Input Bias Current | ≤300 pA max over –40°C to 85°C - enables use with high-impedance sources (e.g., photo diodes, pH electrodes) without significant error. |
| Supply Current per Amp | 135 µA typical at 5V - supports ultra-low-power operation in battery-powered systems with minimal thermal load. |
| Input Noise Density | 14 nV/√Hz at 1kHz - preserves signal integrity in low-level analog front-ends such as strain gauge or thermocouple amplification. |
| Rail-to-Rail Output Swing | Within 40 mV of V+ and V– at 1mA load - maximizes dynamic range in single-supply 3.3V or 5V systems. |
| Gain Bandwidth Product | 250 kHz min - sufficient for DC-coupled instrumentation, filtering, and low-frequency closed-loop control applications. |
| Common Mode Rejection | 107 dB min over full temp range - rejects power supply and ground noise in noisy industrial environments. |
Pinout & Package
LT6012IGN#PBF is housed in a 16-lead plastic SSOP (GN) package, 0.150-inch narrow body, with exposed pad not connected internally. Pin 1 is marked by a dot or beveled corner; the package footprint matches JEDEC MO-153 variation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load; rail-to-rail swing supports full supply utilization. |
| 2 | –IN A | Inverting input of Amp A - high-impedance node; requires guard ring in high-Z applications. |
| 3 | +IN A | Non-inverting input of Amp A - matched to –IN A for common-mode rejection. |
| 4 | V+ | Positive supply rail - accepts 2.7V to 36V or ±1.35V to ±18V; decoupling required near pin. |
| 5 | +IN B | Non-inverting input of Amp B - electrically isolated but thermally coupled to adjacent amps. |
| 6 | –IN B | Inverting input of Amp B - same layout sensitivity as –IN A; avoid thermal gradients. |
| 7 | OUT B | Amplifier B output - identical specs to OUT A; channel separation >110dB prevents interference. |
| 8 | NC | No connect - no internal connection; must remain unconnected per datasheet. |
| 9 | OUT D | Amplifier D output - fourth independent channel; pinout symmetry simplifies PCB routing. |
| 10 | –IN D | Inverting input of Amp D - matches electrical characteristics of other inputs across temperature. |
| 11 | +IN D | Non-inverting input of Amp D - part of matched quad set; offset match ≤170 µV max. |
| 12 | V– | Negative supply rail - reference for all four amplifiers; low-impedance return path essential. |
| 13 | +IN C | Non-inverting input of Amp C - enables simultaneous multi-sensor conditioning on one IC. |
| 14 | –IN C | Inverting input of Amp C - supports differential or single-ended configurations per channel. |
| 15 | OUT C | Amplifier C output - fully specified for drive capability, settling time (45 µs to 0.01%), and noise. |
| 16 | NC | No connect - floating; no internal bond wire or circuit connection. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Operates within 40mV of V+ and V– at 1mA load - eliminates headroom loss in low-voltage systems. |
| Low input offset drift | ≤0.8 µV/°C max - maintains calibration stability over wide ambient temperature ranges. |
| Matched quad architecture | Offset match ≤170 µV max between any two amps - enables precise differential or ratiometric measurements. |
| Input protection network | Integrated 500Ω series resistors + back-to-back diodes - withstands ±10V differential input without external components. |
| Ultra-low power consumption | 135 µA per amplifier at 5V - allows integration of four precision amps in space- and power-constrained designs. |
| High PSRR and CMRR | ≥112 dB PSRR and ≥107 dB CMRR - rejects supply ripple and common-mode noise in industrial signal chains. |
Applications
| Thermocouple Amplifiers | Precision Photo Diode Amplifiers |
|---|---|
|
Use Scenario: Amplifying microvolt-level Seebeck voltages from K-type thermocouples in HVAC and industrial process monitoring. IC Role / Device Role / Timing Role: Precision DC-coupled transimpedance and gain stage with cold-junction compensation interface. Use Value: 85µV max offset and 0.8µV/°C drift ensure <0.5°C measurement uncertainty over –40°C to 85°C ambient. |
Use Scenario: Converting picoamp-level photocurrent from scientific-grade photodiodes into measurable voltage signals. IC Role / Device Role / Timing Role: Low-bias-current transimpedance amplifier with guarded input and low 1/f noise. Use Value: 300pA max input bias current prevents signal corruption; 14nV/√Hz noise enables detection of weak optical signals. |
| Instrumentation Amplifiers | Battery-Powered Precision Systems |
|
Use Scenario: Serving as matched gain-stage amplifiers in 3-op-amp IA topologies for medical ECG and bridge sensor readouts. IC Role / Device Role / Timing Role: Dual-channel matched pair (A/B or C/D) providing identical gain, offset, and drift characteristics. Use Value: ≤170µV offset match between channels minimizes common-mode error; 110dB channel separation prevents cross-talk. |
Use Scenario: Signal conditioning in portable gas analyzers and handheld multimeters operating from coin-cell or Li-ion batteries. IC Role / Device Role / Timing Role: Quad op-amp performing sensor excitation, amplification, filtering, and reference buffering in one package. Use Value: 135µA per amplifier enables >1-year battery life; rail-to-rail output maximizes ADC utilization in 3.3V systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6012IS#PBF | Same quad architecture and specs, but in 14-lead SO package - larger footprint, higher θJA (110°C/W vs 135°C/W). | Limited to board space where SSOP is impractical; less suitable for high-density portable designs. | Select when SO-14 is preferred for hand-soldering or legacy layout compatibility. |
| AD8604ARUZ | Quad rail-to-rail op amp with 65µV max offset, 1pA bias current, but higher 500µA supply current and 22nV/√Hz noise. | Better for ultra-high-Z sources but unsuitable for low-power or low-noise-critical applications. | Choose only if sub-picoamp bias current outweighs noise and power penalties in your design. |
Compared with LT6012IGN#PBF, LT6012IS#PBF offers identical electrical performance in a larger SO package, while AD8604ARUZ trades lower input bias for significantly higher noise and quiescent current - making LT6012IGN#PBF optimal for low-noise, low-power, high-accuracy quad amplification.
Availability
LT6012IGN#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, precision photo diode amplifiers, and battery-powered precision systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6012IGN#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 LT6012IGN#PBF belongs to Linear's precision op amp product line, designed specifically for applications demanding low noise, low drift, rail-to-rail output, and guaranteed operation over –40°C to 85°C industrial temperature range.
FAQ
What is the maximum input common-mode voltage range for LT6012IGN#PBF?
The LT6012IGN#PBF input stage operates within V– + 1V to V+ – 1.2V. For example, with a 5V/0V supply, the valid input range is 1V to 3.8V. Exceeding this range causes gain reduction but no phase reversal. This specification is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables of the official LT6011/LT6012 datasheet.
Does LT6012IGN#PBF support true rail-to-rail input operation?
No, LT6012IGN#PBF does not support rail-to-rail input operation. Its input common-mode range is limited to V– + 1V to V+ – 1.2V, as explicitly stated in the Applications Information section. However, its rail-to-rail output swing (within 40mV of both rails) makes it suitable for many single-supply configurations where inputs remain within the specified range - such as in inverting or non-inverting amplifiers with proper biasing.
What is the guaranteed operating temperature range for LT6012IGN#PBF?
The LT6012IGN#PBF is guaranteed to operate from –40°C to +85°C, as indicated by the "I" grade suffix and confirmed in the Order Information table (LT6012IGN#PBF = Industrial grade). This is validated across all key parameters including offset voltage, bias current, and gain bandwidth, with test data provided in the Electrical Characteristics sections for the GN package at full temperature range.
Can LT6012IGN#PBF drive capacitive loads, and what is the limit?
Yes, LT6012IGN#PBF can drive capacitive loads up to 500pF in unity-gain configuration, as documented in the Applications Information section. Stability improves with higher closed-loop gain. For loads exceeding 500pF, adding a small series resistor (e.g., 10–50Ω) between the output and capacitor restores phase margin - a technique verified in typical performance curves and recommended in the Capacitive Loads subsection of the datasheet.
How does LT6012IGN#PBF achieve its low input bias current of ≤300pA?
LT6012IGN#PBF achieves low input bias current via an on-chip bias current cancellation circuit, as described in the Applications Information section. This topology results in uncorrelated IB+ and IB– currents, reflected in the IOS specification being comparable to IB. The design avoids traditional FET inputs, instead using precision bipolar transistors with active cancellation - delivering both low bias current and low voltage noise (14nV/√Hz) simultaneously.
LT6012IGN#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 16-SSOP (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:
- 16-SSOP
LT6012IGN#PBF FAQ
1.How can I place an order for LT6012IGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6012IGN#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 LT6012IGN#PBF reliable?
The price and inventory of LT6012IGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6012IGN#PBF is usually 5 days.
3.What payment methods are accepted for LT6012IGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6012IGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6012IGN#PBF?
LT6012IGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6012IGN#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 LT6012IGN#PBF?
For technical support, including LT6012IGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6012IGN#PBF requirements.
6.How does Aetrix verify that LT6012IGN#PBF is sourced from the original manufacturer or authorized distributors?
All LT6012IGN#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 LT6012IGN#PBF meets industry standards.
7.What is the process for return or replacement of LT6012IGN#PBF?
All LT6012IGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6012IGN#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 LT6012IGN#PBF part is unused and in its original packaging.
Return procedure for LT6012IGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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