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Analog Devices Inc. LT6004CDD#PBF
- Part No.:
- LT6004CDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LT6004CDD#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:320
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Product details
Overview
LT6004CDD#PBF from Analog Devices (formerly Linear Technology) is a dual, 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 per amplifier at 5V, features 500µV max input offset voltage (0°C–70°C), 90pA max input bias current, and drives 500pF capacitive loads - enabling use in portable gas monitors, low-voltage sensor front-ends, and micropower active filters.
For engineers reviewing the LT6004CDD#PBF datasheet, LT6004CDD#PBF pinout, LT6004CDD#PBF application, or LT6004CDD#PBF equivalent, key selection criteria include guaranteed 1.6V minimum supply operation, 500pF capacitive load drive capability, rail-to-rail I/O performance across –40°C to 85°C, and DFN package thermal characteristics for compact, low-power designs.
Technical Context
The LT6004CDD#PBF employs a complementary PNP/NPN input stage with automatic crossover to maintain rail-to-rail common-mode range (0V to V+) and minimize input offset voltage shift (<1.3mV over full VCM). Its folded-cascode second stage and complementary drive output stage enable stable rail-to-rail swing while supporting 100,000 min open-loop gain into 20kΩ loads.
It integrates phase-reversal protection and 600kΩ input series resistors, allowing safe operation with inputs driven up to 9V below V–. The design guarantees 1µA max quiescent current per amplifier across 1.6V–16V supplies and –40°C to 85°C, with PSRR ≥95dB and CMRR ≥100dB at 1.8V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 16V - enables direct operation from single-cell Li-ion, alkaline, or energy-harvesting sources without regulation. |
| Quiescent Current | ≤1.6µA per amplifier at 5V - ensures multi-year battery life in always-on sensor nodes. |
| Input Offset Voltage | 500µV max (0°C to 70°C) - supports high-accuracy DC-coupled signal conditioning without trimming. |
| Input Bias Current | 90pA max - minimizes error in high-impedance pH, gas, or photodiode sensor interfaces. |
| Capacitive Load Drive | 500pF - allows direct connection to ADC input capacitors or long PCB traces without external isolation. |
| CMRR / PSRR | 100dB / 95dB - rejects supply noise and common-mode interference in noisy industrial or automotive environments. |
| Output Swing | Within 100mV of V+ and 50mV of V– (no load) - maximizes dynamic range in single-supply data acquisition. |
Pinout & Package
LT6004CDD#PBF is housed in an 8-lead (3mm × 3mm) plastic DFN package with exposed pad connected to V–. Thermal resistance θJA = 160°C/W with minimal PCB copper; soldering the exposed pad is recommended for thermal reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT A | Amplifier A output | Full rail-to-rail sourcing/sinking; requires no external compensation for ≤500pF loads. |
| 2: –IN A | Inverting input A | Protected by 600kΩ series resistor; supports input voltages down to 9V below V–. |
| 3: +IN A | Non-inverting input A | Matched impedance to Pin 2; critical for minimizing IB-induced offset in high-Z circuits. |
| 4: V– | Negative supply / ground reference | Exposed pad (Pin 9) is electrically tied to this pin; must be soldered to PCB ground plane. |
| 5: V+ | Positive supply | Requires local 0.01µF ceramic bypass within 25mm; add 4.7µF if driving >1mA loads. |
| 6: OUT B | Amplifier B output | Independent output stage; shares no internal nodes with Amplifier A - enables dual-channel isolation. |
| 7: –IN B | Inverting input B | Electrically isolated from Pin 2; identical protection and bias characteristics as Pin 2. |
| 8: +IN B | Non-inverting input B | Matched to Pin 3; supports independent dual-sensor conditioning without crosstalk. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input & output | Operates with VCM = 0V to V+ and VOUT = V– +50mV to V+ –100mV - eliminates level-shifting in 1.8V/3.3V systems. |
| 1.6V minimum supply | Functional down to 1.6V - enables direct interface with primary cells (e.g., AA/AAA) or supercapacitor backup rails. |
| Phase reversal protection | Prevents output polarity inversion when inputs exceed V– by up to 9V - enhances robustness in fault-prone sensor wiring. |
| 500pF capacitive load drive | Stable without external isolation - simplifies anti-aliasing filter design and reduces BOM count in data-acquisition front-ends. |
| 1µA quiescent current | Guaranteed max per amplifier - allows integration of multiple op amps in ultra-low-power wake-up circuits without compromising sleep current. |
Applications
| Portable Gas Monitor | Battery-Powered Sensor Node |
|---|---|
Use Scenario: Signal conditioning for electrochemical oxygen sensors (e.g., City Technology 4OX(2)) in handheld air quality analyzers. IC Role / Device Role / Timing Role: Dual-channel transimpedance and buffer amplifier converting picoamp-level sensor current to 1V output in air. Use Value: 0.95µA total supply current enables >5-year battery life on CR2032; rail-to-rail output delivers full-scale accuracy at 1.6V supply. | Use Scenario: Front-end amplification for thermistor, RTD, or humidity sensors in wireless IoT edge devices. IC Role / Device Role / Timing Role: Precision low-drift gain stage and reference buffer for 16-bit SAR ADCs in energy-harvesting systems. Use Value: 500µV max VOS and 2µV/°C drift ensure <0.1% measurement error across –20°C to 60°C ambient range. |
| Low-Voltage Active Filter | Micropower Reference Buffer |
Use Scenario: 2nd-order Sallen-Key low-pass filter in wearable heart-rate monitors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Dual op amp implementing filter topology with one section as integrator and the other as gain stage. Use Value: 500pF drive capability allows direct connection to ADC sampling capacitor; 1µA per amplifier prevents filter Q-factor degradation. | Use Scenario: Buffering precision voltage references (e.g., LT6654) for multiple ADCs or DACs in portable medical instrumentation. IC Role / Device Role / Timing Role: Low-noise, low-drift unity-gain follower isolating reference from load variations and PCB leakage. Use Value: 90pA max IB and 10GΩ input resistance prevent reference loading errors; rail-to-rail output maintains accuracy at 1.8V logic levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX44260ASA+ | Higher supply current (2.5µA), wider VOS spec (1.2mV max), same DFN-8 package | Less suitable for sub-1µA sleep modes; better PSRR (110dB) for noisy power domains | Select when higher PSRR outweighs quiescent current penalty in mixed-signal SoC interfaces. |
| OPA333AIDR | Zero-drift architecture, lower VOS (10µV), but higher IQ (17µA) and 1.8V min supply | Superior DC accuracy for precision weigh scales; incompatible with 1.6V primary cells | Select when µV-level offset stability is mandatory and system can support ≥1.8V supply and higher sleep current. |
Compared with MAX44260ASA+ and OPA333AIDR, the LT6004CDD#PBF uniquely balances 1.6V operation, sub-2µA quiescent current, and 500µV VOS - making it optimal for cost-sensitive, long-life battery systems where supply headroom is constrained.
Availability
LT6004CDD#PBF is available at Aetrix Electronics and suitable for portable gas monitors, battery-powered sensor nodes, and low-voltage active filters requiring stable component supply across commercial temperature grades.
Supply support for LT6004CDD#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 acquired Linear Technology in 2017 and maintains its legacy of high-performance analog ICs for precision, power, and signal-chain applications.
The LT6003/LT6004/LT6005 family was designed specifically for micropower, rail-to-rail precision amplification in space- and energy-constrained portable instrumentation and environmental sensing systems.
FAQ
What is the minimum operating supply voltage for LT6004CDD#PBF?
The LT6004CDD#PBF is fully specified and guaranteed to operate down to 1.6V total supply voltage (V+ to V–) across the commercial temperature range (0°C to 70°C), with PSRR performance maintained at 1.6V. This enables direct use with single alkaline or lithium primary cells without regulation.
Does LT6004CDD#PBF support rail-to-rail input and output simultaneously?
Yes, the LT6004CDD#PBF supports rail-to-rail input common-mode range (0V to V+) and rail-to-rail output swing (V– +50mV to V+ –100mV, no load) simultaneously across its full operating temperature range. This is achieved via complementary PNP/NPN input stages and a folded-cascode output driver.
Can LT6004CDD#PBF drive a 500pF capacitive load without oscillation?
Yes, the LT6004CDD#PBF is explicitly characterized and guaranteed to remain stable driving up to 500pF capacitive loads without external compensation. This capability is verified across all supply voltages (1.6V–16V) and temperatures (–40°C to 85°C), simplifying anti-aliasing filter design.
What is the input bias current specification for LT6004CDD#PBF at 25°C?
At TA = 25°C and VCM = 0.3V or V+ – 0.3V, the LT6004CDD#PBF has a maximum input bias current of 90pA. This value increases slightly at temperature extremes but remains ≤170pA over –40°C to 85°C, ensuring minimal error in high-impedance sensor interfaces.
Is the exposed pad on the LT6004CDD#PBF package electrically connected?
Yes, the exposed pad (Pin 9) on the LT6004CDD#PBF DFN package is internally connected to the V– terminal. It must be soldered to the PCB ground plane to meet thermal specifications (θJA = 160°C/W) and ensure reliable operation under sustained load conditions.
LT6004CDD#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.0055V/µs
- Gain Bandwidth Product:
- 3 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 7 pA
- Voltage - Input Offset:
- 80 µV
- Current - Supply:
- 1.25µA (x2 Channels)
- Current - Output / Channel:
- 9 mA
- Voltage - Supply Span (Min):
- 1.6 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
LT6004CDD#PBF FAQ
1.How can I place an order for LT6004CDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6004CDD#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 LT6004CDD#PBF reliable?
The price and inventory of LT6004CDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6004CDD#PBF is usually 5 days.
3.What payment methods are accepted for LT6004CDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6004CDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6004CDD#PBF?
LT6004CDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6004CDD#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 LT6004CDD#PBF?
For technical support, including LT6004CDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6004CDD#PBF requirements.
6.How does Aetrix verify that LT6004CDD#PBF is sourced from the original manufacturer or authorized distributors?
All LT6004CDD#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 LT6004CDD#PBF meets industry standards.
7.What is the process for return or replacement of LT6004CDD#PBF?
All LT6004CDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6004CDD#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 LT6004CDD#PBF part is unused and in its original packaging.
Return procedure for LT6004CDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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