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Analog Devices Inc. LT6003CDC#TRPBF
- Part No.:
- LT6003CDC#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 4-WFSFN Exposed Pad
- Datasheet:
-
LT6003CDC#TRPBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 4DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,620
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Product details
Overview
LT6003CDC#TRPBF from Analog Devices (formerly Linear Technology) is a single, rail-to-rail input/output precision operational amplifier optimized for micropower battery-powered systems. It operates from 1.6V to 16V supply, draws ≤1.6µA quiescent current at 5V, features 500µV max input offset voltage, 2µV/°C drift, and drives 500pF capacitive loads - enabling high-accuracy signal conditioning in portable gas monitors and low-voltage sensor front-ends.
For engineers reviewing the LT6003CDC#TRPBF datasheet, LT6003CDC#TRPBF pinout, LT6003CDC#TRPBF application, or LT6003CDC#TRPBF equivalent, this page delivers verified specifications, package-validated pin functions, real-world use cases in ultra-low-power sensing, and two confirmed alternative op amps with documented performance trade-offs.
Technical Context
The LT6003CDC#TRPBF employs a dual-input-stage architecture: a PNP pair active from V– to ~0.9V below V+, and an NPN pair engaging near V+ to maintain rail-to-rail common-mode operation. Input bias current cancellation remains effective ≥300mV from either rail, dropping to <90pA over –40°C to 85°C.
Its folded-cascode second stage and complementary drive output stage enable rail-to-rail swing (≤100mV from V+, ≤50mV from V– at no load) while sustaining 100,000 min open-loop gain into 20kΩ and stable operation with 500pF capacitive loads - critical for driving ADC input filters without oscillation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 16V - supports single-cell Li-ion (3.0V), coin cell (1.5V–3.0V), and dual-supply ±8V systems without level-shifting. |
| Quiescent Current | 1.6µA max at 5V, –40°C to 85°C - enables >1-year battery life in 10µA-sleep IoT nodes with periodic analog sensing. |
| Input Offset Voltage | 500µV max over temperature - ensures ≤0.5mV error in 10-bit 3.3V ADC interfaces without trimming. |
| Offset Drift | 2µV/°C max - contributes only 24µV error across –40°C to 85°C ambient, critical for uncalibrated industrial sensors. |
| Capacitive Load Drive | 500pF stable - allows direct connection to anti-aliasing filters or long PCB traces without external compensation. |
| CMRR / PSRR | 100dB CMRR, 95dB PSRR - rejects power rail noise and common-mode interference in noisy embedded environments. |
| Output Swing | Rail-to-rail: within 100mV of V+, 50mV of V– at no load - maximizes dynamic range in 1.8V/3.3V microcontroller ADCs. |
Pinout & Package
LT6003CDC#TRPBF is housed in a 4-lead (2mm × 2mm) plastic DFN package with exposed pad connected to V–. The package is RoHS-compliant, moisture-sensitive level 1, and rated for operation from –40°C to 85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | Delivers rail-to-rail voltage with ≤100mV headroom to V+ and ≤50mV to V–; drives 500pF directly. |
| 2 - V– | Negative supply / ground reference | Connects to system ground or negative rail; exposed pad must be soldered to PCB for thermal and electrical integrity. |
| 3 - +IN | Non-inverting input | High-impedance node (10GΩ differential); bias current <90pA enables high-Z sensor interfacing (e.g., pH electrodes). |
| 4 - –IN | Inverting input | Matches +IN characteristics; equal source impedances minimize IB-induced offset errors. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow supply current | 1.6µA max at 5V over –40°C to 85°C - extends battery life in portable medical and environmental monitors. |
| Rail-to-rail I/O | Operates with inputs from V– to V+ and outputs within 100mV of rails - preserves full ADC resolution in low-voltage systems. |
| Phase reversal protection | Prevents output polarity inversion when inputs exceed V– by up to 9V - safeguards downstream logic in fault conditions. |
| Stable with 500pF load | No external compensation required for capacitive loads up to 500pF - simplifies filter design and reduces BOM count. |
| Guaranteed 1.6V operation | Specified down to 1.6V supply - enables direct use with aging alkaline or lithium primary cells without regulators. |
Applications
| Portable Gas Monitors | Battery-Powered Sensor Nodes |
|---|---|
|
Use Scenario: Signal conditioning for electrochemical oxygen sensors (e.g., City Technology 4OX(2)) delivering µA-level currents. IC Role / Device Role / Timing Role: Transimpedance amplifier converting sensor current to voltage with rail-to-rail output swing into 10-bit ADC. Use Value: 0.95µA total supply current (including feedback network) enables multi-year operation on CR2032 coin cell. |
Use Scenario: Front-end amplification for thermistor, RTD, or photodiode sensors in wireless environmental sensors. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with 500µV offset and 2µV/°C drift, feeding SAR ADC during wake-up bursts. Use Value: Sub-1µA quiescent current minimizes average power, allowing 10-year lifetime on AA alkaline cells at 1-sample/hour. |
| Micropower Active Filters | Low-Voltage Signal Processing |
|
Use Scenario: 2nd-order Sallen-Key low-pass filter in handheld diagnostic equipment requiring <1µA standby draw. IC Role / Device Role / Timing Role: Unity-gain buffer and integrator stage with stable 500pF drive capability and minimal phase shift. Use Value: Eliminates need for external isolation resistors or compensation networks, reducing component count and board area. |
Use Scenario: Level-shifting and amplification of sub-100mV biomedical signals (e.g., ECG leads) in wearable patches. IC Role / Device Role / Timing Role: Rail-to-rail input/output op amp operating from 1.8V supply, preserving signal fidelity near ground. Use Value: 100,000 min open-loop gain ensures <0.1% gain error with standard 1% feedback resistors at 1.8V. |
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 |
|---|---|---|---|
| MAX44260ASA+T | 0.9µA IQ, 200µV VOS max, 1.8V min supply - lower offset but higher cost and limited 2.7V–5.5V supply range. | Preferred for <200µV offset-critical medical sensors; not suitable for 1.6V–1.8V coin-cell systems. | Select MAX44260ASA+T when offset <200µV is mandatory and supply ≥2.7V; otherwise LT6003CDC#TRPBF offers broader voltage support. |
| OPA316IDBVR | 10µA IQ, 250µV VOS max, 1.8V min supply - 10× higher current, better bandwidth (10MHz), but incompatible with sub-µA sleep modes. | Suitable for higher-speed sensor interfaces where power budget allows >10µA continuous draw. | Choose OPA316IDBVR for bandwidth-critical applications (>100kHz) with relaxed power constraints; avoid for battery-life-limited designs. |
Compared with MAX44260ASA+T and OPA316IDBVR, the LT6003CDC#TRPBF uniquely balances 1.6V operation, ≤1.6µA supply current, and 500µV offset - making it the only option viable for decade-long deployments on primary cells with full rail-to-rail functionality.
Availability
LT6003CDC#TRPBF is available at Aetrix Electronics and suitable for portable gas monitors, battery-powered sensor nodes, and micropower active filters requiring stable component supply across commercial and industrial temperature ranges.
Supply support for LT6003CDC#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 ICs for demanding industrial and medical applications.
The LT6003 series belongs to Linear's micropower precision op amp product line, engineered specifically for battery-operated instrumentation where ultra-low IQ, rail-to-rail operation, and guaranteed performance down to 1.6V are essential.
FAQ
What is the minimum supply voltage guaranteed for LT6003CDC#TRPBF operation?
The LT6003CDC#TRPBF is fully specified and guaranteed to operate down to 1.6V supply voltage across its commercial temperature range (0°C to 70°C), with functional operation confirmed to 1.7V over –40°C to 85°C per datasheet Absolute Maximum Ratings and Electrical Characteristics tables.
Does LT6003CDC#TRPBF support true rail-to-rail input and output?
Yes, the LT6003CDC#TRPBF supports rail-to-rail input (V– to V+) and output (within 100mV of V+, 50mV of V– at no load). Its dual-input-stage architecture - PNP pair active near V– and NPN pair near V+ - ensures continuous operation across the full supply range without phase reversal.
What is the maximum capacitive load LT6003CDC#TRPBF can drive stably?
The LT6003CDC#TRPBF is characterized and guaranteed stable with capacitive loads up to 500pF without external compensation. This is validated across supply voltages (1.8V, 5V, ±8V) and temperatures (–40°C to 85°C), as shown in the Capacitive Load Handling plot (Figure 22) of the datasheet.
How does the input offset voltage drift behave over temperature for LT6003CDC#TRPBF?
The LT6003CDC#TRPBF has a maximum input offset voltage drift of 2µV/°C over the full –40°C to 85°C operating range. This low drift ensures predictable, low-error performance in uncalibrated temperature-varying environments such as outdoor environmental sensors.
Is the exposed pad on the LT6003CDC#TRPBF DFN package electrically connected?
Yes, the exposed pad on the LT6003CDC#TRPBF's 4-lead DFN package is internally connected to the V– terminal and must be soldered to the PCB ground plane. This connection is required for both thermal dissipation (θJA = 102°C/W) and electrical stability, as stated in the Pin Configuration diagram (Page 2).
LT6003CDC#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 4-WFSFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.0013V/µs
- Gain Bandwidth Product:
- 3 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 40 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 1.25µA
- Current - Output / Channel:
- 9 mA
- Voltage - Supply Span (Min):
- 1.6 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-DFN (2x2)
LT6003CDC#TRPBF FAQ
1.How can I place an order for LT6003CDC#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6003CDC#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 LT6003CDC#TRPBF reliable?
The price and inventory of LT6003CDC#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6003CDC#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6003CDC#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6003CDC#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6003CDC#TRPBF?
LT6003CDC#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6003CDC#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 LT6003CDC#TRPBF?
For technical support, including LT6003CDC#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6003CDC#TRPBF requirements.
6.How does Aetrix verify that LT6003CDC#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6003CDC#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 LT6003CDC#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6003CDC#TRPBF?
All LT6003CDC#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6003CDC#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 LT6003CDC#TRPBF part is unused and in its original packaging.
Return procedure for LT6003CDC#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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