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Analog Devices Inc. LT6011AIDD#TRPBF
- Part No.:
- LT6011AIDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LT6011AIDD#TRPBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,801
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Product details
Overview
LT6011AIDD#TRPBF from Analog Devices (formerly Linear Technology) is a dual precision rail-to-rail output operational amplifier optimized for low-noise, low-power, high-accuracy signal conditioning. It delivers 14nV/√Hz input voltage noise, <85µV max input offset voltage over –40°C to 85°C, and 135µA supply current per amplifier on 5V, enabling high-fidelity sensor interfacing in battery-powered instrumentation.
For engineers reviewing the LT6011AIDD#TRPBF datasheet, LT6011AIDD#TRPBF pinout, LT6011AIDD#TRPBF application, or LT6011AIDD#TRPBF equivalent, key selection criteria include guaranteed offset drift ≤0.8µV/°C, 300pA max input bias current, rail-to-rail output swing within 40mV of rails, and DFN-8 package compatibility with space-constrained PCB layouts.
Technical Context
The LT6011AIDD#TRPBF employs a precision bipolar input stage with on-chip trimming to achieve sub-85µV offset and 0.8µV/°C drift across its full industrial temperature range. Its 120dB minimum open-loop gain and 107dB CMRR ensure stable DC accuracy under varying common-mode conditions.
It operates from 2.7V single supply to ±18V dual supply, supporting both low-voltage portable systems and wide-range industrial analog front-ends. The 250kHz gain-bandwidth product and 0.06V/µs slew rate are optimized for precision DC-coupled applications-not high-speed signal processing-making it ideal for thermocouple amplification and photo-diode transimpedance stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ≤85 µV max over –40°C to 85°C - ensures ≤0.0017% error at 5V full-scale without calibration |
| Input Bias Current | ±300 pA max - enables use with >10MΩ feedback networks and high-impedance sensors without significant error |
| Supply Current | 135 µA per amplifier at 5V - supports multi-channel precision sensing in energy-constrained designs |
| Output Swing | Within 40 mV of V+ and V– - delivers true rail-to-rail output headroom for 0–5V ADC interfacing |
| Input Noise Density | 14 nV/√Hz at 1 kHz - preserves SNR in low-level sensor signals (e.g., thermopiles, strain gauges) |
| CMRR | 107 dB min - rejects power supply ripple and board-level common-mode interference in noisy environments |
| Operating Temp | –40°C to 85°C - qualified for industrial and automotive under-hood sensor modules |
Pinout & Package
LT6011AIDD#TRPBF is housed in an 8-lead 3mm × 3mm plastic DFN package with exposed thermal pad connected to V–. Pin 1 is marked by top-side indentation; underside metal pad improves thermal performance and may be soldered to PCB ground plane for enhanced stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Delivers rail-to-rail voltage drive; requires no external pull-up/down for logic-level interfacing |
| 2 (–IN A) | Inverting input A | High-impedance node; sensitive to leakage-requires guard ring in high-Z applications |
| 3 (+IN A) | Non-inverting input A | Accepts common-mode voltages from V– +1V to V+ –1.2V; not rail-to-rail input |
| 4 (V–) | Negative supply / reference | Connected to exposed thermal pad; must be low-impedance return path for stability |
| 5 (V+) | Positive supply | Supports 2.7V to 36V single or ±18V dual supply; PSRR ≥112 dB minimizes supply noise coupling |
| 6 (OUT B) | Amplifier B output | Independent output; channel separation ≥110 dB prevents crosstalk in dual-sensor systems |
| 7 (–IN B) | Inverting input B | Matched to –IN A with ∆VOS ≤170 µV - enables precision differential gain stages |
| 8 (+IN B) | Non-inverting input B | Electrically identical to +IN A; supports independent dual-channel configuration |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables full utilization of 0–5V ADC input range without level-shifting circuitry |
| Low 14nV/√Hz input noise | Maintains signal integrity in microvolt-level sensor outputs (e.g., RTD bridges, photodiodes) |
| Guaranteed 0.8µV/°C VOS drift | Eliminates need for periodic recalibration in temperature-variable industrial enclosures |
| 300pA max input bias current | Permits direct connection to high-Z sources like pH electrodes or piezoelectric sensors |
| DFN-8 thermal performance | θJA = 43°C/W enables operation at full spec without heatsink in compact 2-layer PCBs |
Applications
| Thermocouple Amplifiers | Precision Photo Diode Amplifiers |
|---|---|
|
Use Scenario: Cold-junction compensation and linearization of K-type thermocouples in HVAC controllers. IC Role / Device Role / Timing Role: Dual op-amp configured as precision instrumentation amplifier front-end with matched gain and offset rejection. Use Value: Sub-85µV offset and 0.8µV/°C drift directly translate to <±0.5°C measurement uncertainty over –20°C to 70°C ambient. |
Use Scenario: Transimpedance amplification of low-light photodiode current in medical pulse oximeters. IC Role / Device Role / Timing Role: Low-noise, low-bias-current TIA stage converting 10pA–1nA photocurrent to measurable voltage. Use Value: 14nV/√Hz noise density and 300pA bias current preserve SNR at 100nA signal levels without active cooling. |
| Instrumentation Amplifiers | Battery-Powered Precision Systems |
|
Use Scenario: Building 3-op-amp IA for bridge-based load cells in portable torque testers. IC Role / Device Role / Timing Role: Dual LT6011AIDD#TRPBF provides matched input amps and output buffer in discrete IA topology. Use Value: Matched ∆VOS ≤170µV and ∆CMRR ≥101dB ensure >100dB common-mode rejection without laser trimming. |
Use Scenario: Signal conditioning for 24-bit delta-sigma ADC in handheld multimeters powered by two AA cells. IC Role / Device Role / Timing Role: Dual amplifier handling sensor excitation and signal gain while consuming <270µA total. Use Value: 135µA per amplifier extends battery life to >100 hours at 1ksps sampling with 3.3V LDO regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP2177ARZ-REEL7 | Higher 0.6µV/°C drift, 1.3nV/√Hz noise, SO-8 only - no DFN option | Requires larger PCB area; better for ultra-low-noise than ultra-low-drift needs | Select when lower voltage noise dominates over temperature stability requirements |
| ADA4522-2ARMZ | Zero-drift architecture; 0.005µV/°C drift but 22nV/√Hz noise and 1.2mA supply current | Not suitable for battery operation; superior for long-term DC stability in lab equipment | Choose when microvolt-level drift over years matters more than power or noise |
Compared with OP2177ARZ-REEL7 and ADA4522-2ARMZ, the LT6011AIDD#TRPBF uniquely balances ultra-low drift, low noise, and micropower operation in a space-saving DFN package-making it optimal for portable, battery-operated precision instruments where all three parameters constrain design.
Availability
LT6011AIDD#TRPBF 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 LT6011AIDD#TRPBF 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 legacy of high-performance analog ICs for precision signal conditioning, power management, and data conversion.
The LT6011 family was designed specifically for high-accuracy, low-power sensor signal chains in industrial, medical, and test equipment-emphasizing guaranteed drift, noise, and matching specs over broad operating conditions.
FAQ
What is the maximum input common-mode voltage range for LT6011AIDD#TRPBF?
The LT6011AIDD#TRPBF input stage operates from V– +1V to V+ –1.2V. For example, with a 5V/0V supply, inputs must stay between 1V and 3.8V. Exceeding this range causes gain collapse but no phase reversal. This limitation is critical when configuring non-inverting amplifiers with rail-to-rail input signals-LT6011AIDD#TRPBF requires careful biasing to avoid clipping at the input stage.
Does LT6011AIDD#TRPBF support capacitive loads, and what is the recommended limit?
Yes, LT6011AIDD#TRPBF drives up to 500pF in unity-gain configuration. For higher capacitance, adding a small series resistor (e.g., 10–50Ω) between the output and load restores stability. This capability simplifies anti-aliasing filter integration and reduces need for external buffers in ADC driver applications using LT6011AIDD#TRPBF.
How does the LT6011AIDD#TRPBF handle input protection, and what external components are needed?
LT6011AIDD#TRPBF integrates back-to-back diodes and 500Ω series resistors on each input, limiting differential input current to ≤10mA for ≤10V differential stress. For >10V expected differentials-such as in industrial field wiring-add 1kΩ external series resistors per input to protect against 30V faults. No additional clamping diodes are required for standard use cases.
Is LT6011AIDD#TRPBF pin-compatible with other LT6011 variants in the same package?
Yes, all LT6011 variants in the 8-lead DFN (e.g., LT6011CDD#TRPBF, LT6011IDD#TRPBF, LT6011AIDD#TRPBF) share identical pinout and footprint. The "A" grade denotes tighter initial offset (≤60µV vs ≤125µV) and drift (≤0.8µV/°C), but electrical and mechanical compatibility is maintained-enabling drop-in upgrades in existing designs using LT6011AIDD#TRPBF.
Can LT6011AIDD#TRPBF operate from a single 3.3V supply, and what output swing can be expected?
Yes, LT6011AIDD#TRPBF operates down to 2.7V single supply. At 3.3V, its rail-to-rail output swings to within 40mV of each rail-delivering 0.04V to 3.26V output range. This supports direct interfacing with 3.3V SAR or delta-sigma ADCs without level-shifting, preserving full dynamic range in low-voltage precision systems using LT6011AIDD#TRPBF.
LT6011AIDD#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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 (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-DFN (3x3)
LT6011AIDD#TRPBF FAQ
1.How can I place an order for LT6011AIDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6011AIDD#TRPBF 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 LT6011AIDD#TRPBF reliable?
The price and inventory of LT6011AIDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6011AIDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6011AIDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6011AIDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6011AIDD#TRPBF?
LT6011AIDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6011AIDD#TRPBF 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 LT6011AIDD#TRPBF?
For technical support, including LT6011AIDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6011AIDD#TRPBF requirements.
6.How does Aetrix verify that LT6011AIDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6011AIDD#TRPBF 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 LT6011AIDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6011AIDD#TRPBF?
All LT6011AIDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6011AIDD#TRPBF, 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 LT6011AIDD#TRPBF part is unused and in its original packaging.
Return procedure for LT6011AIDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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