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Analog Devices Inc. LT6013CDD#PBF
- Part No.:
- LT6013CDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LT6013CDD#PBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:242
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Product details
Overview
LT6013CDD#PBF from Analog Devices (formerly Linear Technology) is a single, rail-to-rail output precision operational amplifier optimized for low-noise, micro-power sensor interface and battery-powered instrumentation. It delivers 9.5nV/√Hz input voltage noise at 1kHz, 145µA supply current per amplifier, and 35µV max input offset voltage (A-grade), operating from 2.7V to ±18V supplies in the 3mm × 3mm DFN-8 package.
For engineers reviewing the LT6013CDD#PBF datasheet, LT6013CDD#PBF pinout, LT6013CDD#PBF application, or LT6013CDD#PBF equivalent, this page provides verified circuit role, package mapping, thermal performance, noise behavior, gain stability constraints (AV ≥ 5), and validated alternative options for precision analog signal conditioning in thermocouple, photodiode, and instrumentation amplifier designs.
Technical Context
The LT6013CDD#PBF employs a decompensated internal architecture requiring minimum closed-loop gain of 5 for stability-unlike unity-gain stable op amps-and supports up to 500pF capacitive load at that gain. Its input stage uses on-chip bias current cancellation, yielding ≤250pA max input bias current (A-grade) and uncorrelated IB+ / IB– paths.
It features rail-to-rail output swing (within 40mV of rails at no load), 1.4MHz gain-bandwidth product, 0.2V/µs slew rate, and exceptional low-frequency noise performance: 40nVRMS (0.1Hz–10Hz). Input common-mode range is limited to V– + 1V to V+ – 1.2V, with guaranteed CMRR >107dB over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 145µA per amplifier - enables multi-year battery life in portable precision sensors. |
| Input Voltage Noise | 9.5nV/√Hz at 1kHz - preserves SNR in high-gain, low-level signal chains (e.g., thermocouples). |
| Input Offset Voltage | ≤35µV (max, A-grade) - ensures <0.1% error in 35mV full-scale industrial sensor outputs. |
| Gain Bandwidth Product | 1.4MHz - supports stable closed-loop bandwidths up to ~280kHz at AV = 5. |
| Output Swing | Rail-to-rail (40mV from rails, no load) - maximizes dynamic range in 3.3V or 5V single-supply systems. |
| Input Bias Current | ±250pA (max, A-grade) - permits use with >10MΩ source impedances without significant DC error. |
| Stability Condition | Minimum AV = 5 - prohibits unity-gain follower use without external compensation networks. |
Pinout & Package
LT6013CDD#PBF is housed in an 8-lead 3mm × 3mm plastic DFN package with exposed metal pad connected to V– (optional PCB connection). Pin 1 is marked by top-side dot; underside metal improves thermal dissipation (θJA = 160°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | –IN | Inverting input - high-impedance node; requires guard ring routing in µV-level applications. |
| 2 | +IN | Non-inverting input - matched to –IN for CMRR; avoid thermal gradients across both traces. |
| 3 | V– | Negative supply rail - also connects to exposed underside metal pad for thermal management. |
| 4 | NC | No connect - internally unused; must remain floating or grounded per layout guidelines. |
| 5 | NC | No connect - identical to Pin 4; no internal connection. |
| 6 | V+ | Positive supply rail - supports 2.7V to 36V total supply range (±18V max). |
| 7 | OUT | Amplifier output - drives loads up to 500pF at AV ≥ 5; rail-to-rail swing enables low-voltage operation. |
| 8 | DNC | Do not connect - internal test node; must be left unconnected. |
Key Features
| Feature | Design Value |
|---|---|
| Low 1/f noise | 200nVP-P (0.1Hz–10Hz) - minimizes drift-induced errors in DC-coupled sensor front-ends. |
| Rail-to-rail output | Swings within 40mV of V+ and V– - recovers full 3.3V or 5V supply headroom for ADC interfacing. |
| High PSRR | 112dB min (2.7V–36V) - rejects power supply ripple without external filtering in noisy embedded systems. |
| Low VOS drift | 0.8µV/°C max - maintains calibration integrity across –40°C to 85°C industrial temperature range. |
| High CMRR | 107dB min - rejects common-mode interference in differential sensor measurements (e.g., strain gauges). |
Applications
| Thermocouple Amplifiers | Precision Photodiode Amplifiers |
|---|---|
|
Use Scenario: Amplifying µV-level Seebeck voltages from K-type thermocouples in HVAC controllers and industrial process monitors. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier with cold-junction compensation interface. Use Value: 35µV max VOS and 0.8µV/°C drift ensure <±0.5°C accuracy over full industrial temperature range without recalibration. |
Use Scenario: Converting nanoamp photocurrents from IR photodiodes in gas analyzers and medical pulse oximeters. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with ultra-low input bias current and low voltage noise. Use Value: 250pA max IB prevents TIA gain error; 9.5nV/√Hz noise dominates only above 10kΩ source impedance, preserving SNR. |
| Instrumentation Amplifiers | Battery-Powered Precision Systems |
|
Use Scenario: Serving as input-stage amplifiers in 3-op-amp INAs for bridge-based pressure and load-cell sensors. IC Role / Device Role / Timing Role: Matched pair driver (with LT6014 variant) providing high CMRR and low offset in INA front-end. Use Value: Guaranteed 107dB CMRR and 35µV VOS enable >80dB common-mode rejection in low-drift, high-Z bridge interfaces. |
Use Scenario: Signal conditioning in handheld multimeters, portable data loggers, and wireless sensor nodes. IC Role / Device Role / Timing Role: Low-power precision gain block enabling multi-year operation on coin-cell batteries. Use Value: 145µA supply current allows continuous operation for >5 years on a CR2032 (220mAh) at 100% duty cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6010CS6#TRMPBF | Unity-gain stable, 200pA IB, 14nV/√Hz noise, SOT-23-6 package | Supports buffer configurations; higher noise limits use in sub-100µV signal chains | Select when unity-gain operation is required and 14nV/√Hz noise is acceptable |
| OPA333AIDBVR | Zero-drift architecture, 0.02µV/°C drift, 5.5µV max VOS, 17µA supply current | Superior DC accuracy but lower GBW (350kHz); unsuitable for >100kHz closed-loop designs | Select for ultra-low drift in DC-coupled systems where bandwidth <350kHz suffices |
Compared with LT6013CDD#PBF, LT6010CS6#TRMPBF trades noise and gain stability for flexibility in unity-gain circuits, while OPA333AIDBVR sacrifices bandwidth and increases input capacitance (10pF) to achieve near-zero drift-making each suitable only for distinct precision analog design priorities.
Availability
LT6013CDD#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, precision photodiode interfaces, and battery-powered instrumentation requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for LT6013CDD#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 LT6013 series belongs to Linear's precision op amp product line, engineered for ultra-low noise, rail-to-rail output, and micro-power operation in demanding sensor interface and portable instrumentation applications.
FAQ
What is the minimum stable gain for LT6013CDD#PBF?
The LT6013CDD#PBF is decompensated and requires a minimum closed-loop gain of 5 (AV ≥ 5) for stability. Using it in unity-gain or gain-of-2 configurations without external compensation will cause oscillation. Figure 2 in the datasheet shows RC network methods to stabilize lower-gain configurations while preserving DC accuracy.
Does LT6013CDD#PBF support rail-to-rail input operation?
No. LT6013CDD#PBF has rail-to-rail *output* swing but a limited input common-mode range: V– + 1V to V+ – 1.2V. Applying signals outside this range causes gain collapse-not phase reversal-but may degrade CMRR and increase offset. For true rail-to-rail input, consider the LT1881 or OPA333 families.
What is the maximum capacitive load LT6013CDD#PBF can drive?
At AV = 5, LT6013CDD#PBF drives up to 500pF capacitive load stably. Driving larger loads requires either increasing closed-loop gain or adding a small series resistor (e.g., 10–50Ω) between the output and the capacitor to isolate the reactive load from the amplifier's feedback node.
Is LT6013CDD#PBF pin-compatible with LT6013CS8#PBF?
No. LT6013CDD#PBF uses an 8-lead 3mm × 3mm DFN package with different pinout and thermal pad configuration than the SO-8 LT6013CS8#PBF. The DFN places V– on Pin 3 and V+ on Pin 6, whereas SO-8 places V– on Pin 4 and V+ on Pin 8. PCB redesign is required for substitution.
What does the 'C' grade signify in LT6013CDD#PBF?
The 'C' grade in LT6013CDD#PBF indicates commercial temperature range (0°C to 70°C) operation with functional guarantee over –40°C to 85°C. Electrical specifications like 35µV max VOS and 250pA max IB apply only to the 'A' grade (LT6013ACDD#PBF); the 'C' grade has looser limits (e.g., 85µV max VOS at 0°C–70°C).
LT6013CDD#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- 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
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
LT6013CDD#PBF FAQ
1.How can I place an order for LT6013CDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6013CDD#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 LT6013CDD#PBF reliable?
The price and inventory of LT6013CDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6013CDD#PBF is usually 5 days.
3.What payment methods are accepted for LT6013CDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6013CDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6013CDD#PBF?
LT6013CDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6013CDD#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 LT6013CDD#PBF?
For technical support, including LT6013CDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6013CDD#PBF requirements.
6.How does Aetrix verify that LT6013CDD#PBF is sourced from the original manufacturer or authorized distributors?
All LT6013CDD#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 LT6013CDD#PBF meets industry standards.
7.What is the process for return or replacement of LT6013CDD#PBF?
All LT6013CDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6013CDD#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 LT6013CDD#PBF part is unused and in its original packaging.
Return procedure for LT6013CDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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