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Analog Devices Inc. LT6000CDCB#TRPBF
- Part No.:
- LT6000CDCB#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LT6000CDCB#TRPBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,439
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Product details
Overview
LT6000CDCB#TRPBF from Analog Devices (formerly Linear Technology) is a single-channel, micropower, rail-to-rail input/output precision operational amplifier optimized for battery- and solar-powered systems. It operates from 1.8V to 16V supply, draws only 13µA quiescent current per amplifier, features 600µV max input offset voltage, and is fully specified at 1.8V over –40°C to 85°C. It enables low-voltage signal conditioning in gas sensing front-ends and portable instrumentation.
For engineers reviewing the LT6000CDCB#TRPBF datasheet, LT6000CDCB#TRPBF pinout, LT6000CDCB#TRPBF application, or LT6000CDCB#TRPBF equivalent, key selection criteria include guaranteed 1.8V operation, shutdown capability (1.5µA max), DFN-6 package footprint, rail-to-rail I/O swing within 30mV of rails, and precision performance across industrial temperature range.
Technical Context
The LT6000CDCB#TRPBF employs a dual-input-stage architecture-PNP pair active near V– and NPN pair active near V+-enabling true rail-to-rail common-mode input range (0V to 1.8V on 1.8V supply). Its folded-cascode second stage and complementary drive output stage deliver rail-to-rail output swing with minimal crossover distortion.
Shutdown control is implemented via a dedicated SHDN pin referenced to V–; asserting SHDN ≤ 0.3V places the amplifier in high-impedance state with total supply current ≤ 1.5µA. Input bias current polarity reverses across the common-mode range (–6nA to +12nA), requiring matched source impedances to minimize offset error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8V to 16V - supports direct connection to single-cell Li-ion (3.0–4.2V), NiMH (0.9–1.4V × 2), or 1.8V logic rails without level-shifting. |
| Quiescent Current | 13µA per amplifier (typ) - enables multi-year battery life in always-on sensor nodes drawing <150µA total system current. |
| Input Offset Voltage | 600µV max (–40°C to 85°C) - ensures ≤0.03% gain error in 20mV full-scale oxygen sensor interfaces. |
| Input/Output Swing | Rail-to-rail - delivers full 0V–1.8V dynamic range on 1.8V supply, maximizing ADC utilization without external level-shifting. |
| Gain Bandwidth | 32kHz (min, –40°C to 85°C) - sufficient for DC–10Hz gas sensing, ECG, and thermopile amplification with stable unity-gain response. |
| Shutdown Current | 1.5µA max - reduces system standby power by >90% versus active mode, critical for duty-cycled sensor wake-up architectures. |
| Input Noise Density | 75nV/√Hz @ 1kHz - preserves SNR in low-level transducer signals (e.g., <100µV p-p thermopile outputs). |
Pinout & Package
LT6000CDCB#TRPBF is housed in a 6-lead, 2mm × 3mm plastic DFN package (DCB) with exposed pad connected to V–. The package supports reflow soldering and provides low thermal resistance (θJA = 160°C/W).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V+ | Positive supply input - must be bypassed with ≥0.01µF ceramic capacitor placed within 1 inch to ensure stability. |
| 2 | OUT | Amplifier output - capable of sourcing/sinking ≥100µA while maintaining rail-to-rail swing (≤30mV from rails, no load). |
| 3 | SHDN | Shutdown enable - driven low (≤0.3V) to disable amplifier and reduce supply current to ≤1.5µA; tied to V+ for normal operation. |
| 4 | V– | Negative supply input - exposed pad (Pin 7) is internally connected to this pin for thermal and electrical grounding. |
| 5 | –IN | Inverting input - includes 30kΩ series protection resistors to tolerate inputs up to 2V below V– without phase reversal. |
| 6 | +IN | Non-inverting input - same protection as –IN; input bias current polarity depends on common-mode voltage (–6nA to +12nA). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Operates with input common-mode range from V– to V+ and output swing within 30mV of both rails on 1.8V supply - eliminates need for level-shifting in ultra-low-voltage systems. |
| 1.8V minimum supply | Guaranteed functionality and full specification down to 1.8V - enables direct interface with energy-harvesting circuits and single-cell batteries without regulators. |
| 13µA quiescent current | Draws less than half the current of comparable precision op amps - extends battery life in portable medical and environmental sensors. |
| Shutdown mode (1.5µA) | Reduces total supply current by >99% versus active mode - essential for microcontroller-controlled wake-up architectures in IoT endpoints. |
| 600µV max offset (–40°C to 85°C) | Offset trimmed on both PNP and NPN input stages - maintains precision across full rail-to-rail input range without CMRR-induced errors. |
Applications
| Gas Sensing Front-End | Portable Instrumentation |
|---|---|
Use Scenario: Amplifying low-level current from electrochemical oxygen sensors (e.g., City Technology 40X) in handheld air quality monitors. IC Role / Device Role / Timing Role: Transimpedance amplifier with rail-to-rail output driving 12-bit SAR ADC input directly from 1.8V supply. Use Value: 13µA supply current enables >5-year battery life in devices sampling every 10 seconds; 600µV offset ensures <0.5% O₂ measurement error at 21% concentration. | Use Scenario: Signal conditioning for thermopile-based non-contact temperature sensors in battery-powered clinical thermometers. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with gain of 100, operating from coin-cell battery without voltage boost. Use Value: 75nV/√Hz input noise density preserves resolution of <100µV thermopile outputs; 1.8V operation avoids regulator dropout issues during battery discharge. |
| Battery-Powered Data Loggers | Solar-Powered Environmental Sensors |
Use Scenario: Amplifying pH electrode outputs in field-deployable water quality loggers powered by AA alkaline cells. IC Role / Device Role / Timing Role: High-input-impedance buffer and gain stage preceding low-power MCU ADC, enabled only during sampling bursts. Use Value: Shutdown current ≤1.5µA minimizes self-discharge during 15-minute sleep intervals; rail-to-rail I/O maximizes dynamic range on 2.0–2.4V aged battery voltage. | Use Scenario: Conditioning analog outputs from photodiode-based UV index sensors in solar-charged weather stations. IC Role / Device Role / Timing Role: Low-quiescent-current transimpedance amplifier interfacing directly to energy-harvesting PMIC output (1.8–2.2V). Use Value: Guaranteed 1.8V operation allows direct connection to buck-boost converter output without LDO; 32kHz GBW supports filtering of 50/60Hz ambient light interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision micropower op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2050CS5#TRMPBF | Zero-drift architecture; 50nV/°C drift vs. LT6000's 5µV/°C; higher supply current (150µA); SOT-23-5 package. | Better long-term DC stability but 11× higher quiescent current - unsuitable for multi-year battery life requirements. | Select LTC2050 only when sub-µV offset drift dominates over battery life; avoid for gas sensing where 600µV max offset is sufficient and µA-level current is mandatory. |
| OPA333AIDBVR | Zero-drift; 17µA supply current; rail-to-rail I/O; 1.8V min supply; SC70-5 package; 12µV max offset. | Lower offset and drift, but 30% higher quiescent current and no shutdown pin - requires external FET for power gating. | Choose OPA333 when ultra-low offset is critical and system can accommodate higher current or add discrete shutdown; LT6000 remains superior for integrated shutdown in space-constrained DFN layouts. |
Compared with LTC2050CS5#TRMPBF and OPA333AIDBVR, LT6000CDCB#TRPBF uniquely combines guaranteed 1.8V operation, integrated shutdown, DFN-6 footprint, and 13µA quiescent current - making it the only option that meets all four constraints simultaneously for multi-year battery-powered sensor nodes.
Availability
LT6000CDCB#TRPBF is available at Aetrix Electronics and suitable for gas sensing front-ends, portable instrumentation signal chains, and solar-powered environmental monitoring systems requiring stable component supply across extended production lifecycles.
Supply support for LT6000CDCB#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 precision analog portfolio, emphasizing low-power, high-accuracy signal conditioning for industrial and medical applications.
The LT6000 family was designed specifically for micropower, rail-to-rail precision amplification in battery-constrained systems - targeting applications where 1.8V operation, sub-20µA quiescent current, and guaranteed industrial temperature performance are non-negotiable.
FAQ
What is the maximum input common-mode voltage range for LT6000CDCB#TRPBF on a 1.8V supply?
The LT6000CDCB#TRPBF supports an input common-mode voltage range from V– to V+, i.e., 0V to 1.8V on a 1.8V supply. This rail-to-rail input capability is fully specified and guaranteed over temperature, enabling direct interface with sensors whose output spans the full supply range without attenuation or level-shifting circuitry.
Does LT6000CDCB#TRPBF require external components for stable operation?
Yes - LT6000CDCB#TRPBF requires a minimum 0.01µF ceramic bypass capacitor placed within 1 inch of the V+ pin. For heavy capacitive loads (>100pF) or high-current output, additional layout best practices apply, including ground plane under the exposed pad and minimized trace inductance. No external compensation is needed for unity-gain stable operation.
How does the shutdown function of LT6000CDCB#TRPBF behave during power-up?
During power-up, LT6000CDCB#TRPBF enters active mode if the SHDN pin is at V+ or floating above 1.5V. If SHDN is held ≤0.3V relative to V– during startup, the device remains in shutdown until SHDN rises above the threshold. Turn-on time is 400µs (max), ensuring predictable wake-up timing in microcontroller-controlled systems using LT6000CDCB#TRPBF.
Can LT6000CDCB#TRPBF drive a 10kΩ load while maintaining rail-to-rail output swing?
Yes - LT6000CDCB#TRPBF maintains rail-to-rail output swing within 160mV of each rail when sourcing or sinking 100µA into a 10kΩ load (i.e., 1V output swing on 1.8V supply). At 100µA load, the output high saturation voltage is ≤225mV and low saturation voltage is ≤200mV, preserving >85% of full-scale dynamic range for typical 12-bit ADC interfaces.
Is LT6000CDCB#TRPBF compatible with lead-free reflow profiles?
Yes - LT6000CDCB#TRPBF is RoHS-compliant and rated for standard lead-free reflow profiles, including peak temperatures up to 260°C for 10 seconds. The DCB package's exposed pad must be soldered to a thermal pad on the PCB to meet θJA = 160°C/W specification and ensure reliable operation at maximum junction temperature (125°C).
LT6000CDCB#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 6-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.018V/µs
- Gain Bandwidth Product:
- 60 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 4 nA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 20µA
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (2x3)
LT6000CDCB#TRPBF FAQ
1.How can I place an order for LT6000CDCB#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6000CDCB#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 LT6000CDCB#TRPBF reliable?
The price and inventory of LT6000CDCB#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6000CDCB#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6000CDCB#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6000CDCB#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6000CDCB#TRPBF?
LT6000CDCB#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6000CDCB#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 LT6000CDCB#TRPBF?
For technical support, including LT6000CDCB#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6000CDCB#TRPBF requirements.
6.How does Aetrix verify that LT6000CDCB#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6000CDCB#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 LT6000CDCB#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6000CDCB#TRPBF?
All LT6000CDCB#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6000CDCB#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 LT6000CDCB#TRPBF part is unused and in its original packaging.
Return procedure for LT6000CDCB#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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