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Analog Devices Inc. LT6004HDD#PBF
- Part No.:
- LT6004HDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LT6004HDD#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,386
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Product details
Overview
LT6004HDD#PBF from Analog Devices (formerly Linear Technology) is a dual rail-to-rail input/output precision operational amplifier optimized for ultra-low-power, battery-operated systems. It operates from 1.6V to 16V supply, draws ≤1.6µA per amplifier at 5V, features 500µV max input offset voltage (–40°C to 125°C), 90pA max input bias current, and drives 500pF capacitive loads - enabling high-accuracy signal conditioning in portable gas monitors and micropower active filters.
For engineers reviewing the LT6004HDD#PBF datasheet, LT6004HDD#PBF pinout, LT6004HDD#PBF application, or LT6004HDD#PBF equivalent, key selection criteria include guaranteed automotive-grade temperature operation (–40°C to 125°C), rail-to-rail I/O performance at sub-2V supplies, low 2µV/°C offset drift, and compatibility with 3mm × 3mm DFN packaging for space-constrained designs.
Technical Context
The LT6004HDD#PBF employs a complementary PNP/NPN input stage with automatic crossover control to maintain rail-to-rail common-mode input range (0V to V+) across its full –40°C to 125°C operating range. Its folded-cascode second stage and complementary drive output stage enable true rail-to-rail output swing (≤100mV from rails) while sustaining stability into 500pF loads without external compensation.
Offset voltage is trimmed on both input stages to limit common-mode-induced shift to ≤1.3mV over full VCM range, and integrated phase-reversal protection prevents erroneous output polarity when inputs are driven up to 9V below V–. Input bias current remains ≤90pA across VCM = 0.3V to V+ – 0.3V, supporting high-impedance sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 16V - enables direct operation from single-cell Li-ion (3.0–4.2V), coin cell (1.5–3.0V), or 12V industrial rails without regulation. |
| Quiescent Current | ≤1.6µA per amplifier at 5V, –40°C to 125°C - ensures multi-year battery life in always-on sensor nodes drawing <2µA total system current. |
| Input Offset Voltage | 500µV max over –40°C to 125°C - supports 12-bit accuracy in 2.5V full-scale systems without calibration. |
| Input Bias Current | 90pA max at –40°C to 125°C - preserves signal integrity in >10GΩ source-impedance applications like electrochemical sensors. |
| Capacitive Load Drive | 500pF - eliminates need for isolation resistors when driving ADC input filters or long PCB traces. |
| CMRR / PSRR | 100dB CMRR, 95dB PSRR - rejects power-supply noise and common-mode interference in noisy embedded environments. |
| Gain Bandwidth | 2kHz - sufficient for DC-coupled sensor amplification, low-frequency filtering, and precision reference buffering. |
Pinout & Package
LT6004HDD#PBF is housed in an 8-lead (3mm × 3mm) plastic DFN package with exposed pad connected to V–. The package supports reflow soldering and provides low thermal resistance (θJA = 160°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT A | Amplifier A output | Rail-to-rail sourcing/sinking output capable of swinging within 100mV of V+ and 50mV of V– under no load. |
| 2 - V– | Negative supply | Reference node for both amplifiers; exposed pad must be soldered to PCB ground plane for thermal and electrical performance. |
| 3 - +IN A | Amplifier A noninverting input | High-impedance (≥10GΩ) input with phase-reversal protection; accepts signals from V– to V+. |
| 4 - –IN A | Amplifier A inverting input | Matched to +IN A; offset voltage trimmed jointly with +IN A to minimize stage-dependent errors. |
| 5 - –IN B | Amplifier B inverting input | Electrically isolated from Amplifier A inputs; supports independent feedback networks per channel. |
| 6 - +IN B | Amplifier B noninverting input | Identical specs to +IN A; enables dual-channel instrumentation or differential-to-single-ended conversion. |
| 7 - V+ | Positive supply | Accepts 1.6V–16V; requires local 0.01µF ceramic bypass capacitor within 1 inch of pin. |
| 8 - OUT B | Amplifier B output | Functionally identical to OUT A; allows simultaneous processing of two analog signals with matched DC specs. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode range extends from V– to V+; output swings to within 100mV of V+ and 50mV of V– - enables full utilization of low-voltage supply headroom. |
| Automotive temperature grade | Specified and guaranteed over –40°C to 125°C - qualified for under-hood and industrial control applications without derating. |
| Phase reversal protection | Prevents output polarity inversion when inputs are driven up to 9V below V– - eliminates risk of latch-up in fault conditions. |
| Low 1/f noise | 3µVP-P (0.1Hz–10Hz) - minimizes drift-induced error in DC-coupled sensor front-ends and precision integrators. |
| Stable into heavy capacitive loads | Drives 500pF directly - simplifies anti-alias filter design and eliminates need for output isolation resistors in data acquisition systems. |
Applications
| Portable Gas Monitors | Battery-Powered Environmental Sensors |
|---|---|
Use Scenario: Amplifying low-level current from electrochemical oxygen sensors (e.g., City Technology 4OX(2)) in handheld air quality meters. IC Role / Device Role / Timing Role: Precision transimpedance amplifier converting pA-level sensor current to stable 1V output at 0.95µA total supply current. Use Value: Enables >2-year battery life on CR2032 while maintaining ±0.5% O₂ measurement accuracy across –20°C to 50°C ambient. |
Use Scenario: Signal conditioning for thermistor, humidity, and CO₂ sensing elements in wireless IoT nodes. IC Role / Device Role / Timing Role: Dual-channel buffer and level-shifter interfacing high-impedance passive sensors to 12-bit SAR ADCs. Use Value: Eliminates external calibration by holding offset drift ≤1.3mV over full temperature range, reducing firmware complexity. |
| Micropower Active Filters | Low-Voltage Reference Buffers |
Use Scenario: Implementing 2nd-order Sallen-Key low-pass filters in wearable health monitors with <10µA system budget. IC Role / Device Role / Timing Role: Dual op-amp providing gain, pole placement, and rail-to-rail output swing without external compensation. Use Value: Supports 170Hz full-power bandwidth with <2µA per amplifier - maintains ECG signal fidelity while minimizing power consumption. |
Use Scenario: Buffering precision voltage references (e.g., LT6654) in portable multimeters and calibrators. IC Role / Device Role / Timing Role: Unity-gain follower isolating reference from varying ADC input capacitance and leakage paths. Use Value: Prevents reference loading-induced errors (<1ppm/mA) and sustains 100dB PSRR to reject digital switching noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Higher quiescent current (17µA vs 1.6µA), lower offset (10µV vs 500µV), same 3mm × 3mm SOIC-8 package. | Better DC precision but 10× higher power - suitable only where battery life is secondary to accuracy. | Select OPA2333AIDR only if offset voltage <50µV is mandatory and supply current >10µA is acceptable. |
| MAX44260ASA+ | Lower supply current (900nA), wider temp range (–40°C to 125°C), but larger 8-pin µMAX package (3.05mm × 5.0mm). | Superior micropower performance but incompatible footprint - requires PCB redesign for drop-in replacement. | Choose MAX44260ASA+ only when sub-1µA supply current is critical and board space allows larger package. |
Compared with LT6004HDD#PBF, OPA2333AIDR trades 10× higher supply current for 50× lower offset voltage, while MAX44260ASA+ achieves lower current in a non-pin-compatible package - making LT6004HDD#PBF the optimal balance of ultra-low power, automotive temperature rating, and compact 3mm × 3mm DFN integration.
Availability
LT6004HDD#PBF is available at Aetrix Electronics and suitable for portable gas monitors, battery-powered environmental sensors, and micropower active filters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6004HDD#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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LT6003/LT6004/LT6005 family was designed specifically for micropower, precision signal conditioning in energy-constrained portable and remote sensing applications - emphasizing ultra-low supply current without sacrificing rail-to-rail I/O or temperature stability.
FAQ
What is the maximum guaranteed input offset voltage for LT6004HDD#PBF over its full operating temperature range?
The LT6004HDD#PBF has a maximum input offset voltage of 500µV over the full –40°C to 125°C temperature range, as specified in the Electrical Characteristics table for LT6004H-grade devices. This value applies to both amplifiers in the dual package and is guaranteed by production testing, not correlation. The LT6004HDD#PBF maintains this specification under 1.8V, 5V, and ±8V supply conditions.
Does LT6004HDD#PBF support true rail-to-rail input and output operation at 1.6V supply?
Yes, the LT6004HDD#PBF supports rail-to-rail input common-mode range (V– to V+) and rail-to-rail output swing (within 100mV of V+ and 50mV of V–) down to 1.6V total supply voltage. Its PNP/NPN complementary input stage and folded-cascode output architecture ensure functionality across the entire supply range, validated in the datasheet's "Start-Up Characteristics" and "Output Swing" graphs at 1.8V and 5V.
Can LT6004HDD#PBF drive a 500pF capacitive load without external compensation?
Yes, the LT6004HDD#PBF is explicitly characterized to drive up to 500pF capacitive loads without oscillation or excessive overshoot, as confirmed in the "Capacitive Load Handling" and "Overshoot vs Capacitive Load" plots (Figure G22). This capability eliminates the need for series isolation resistors in ADC input filter designs and simplifies layout for high-impedance sensor interfaces.
What is the minimum supply voltage at which LT6004HDD#PBF guarantees 95dB PSRR?
The LT6004HDD#PBF guarantees ≥95dB PSRR at supply voltages from 1.7V to 6V, as stated in the Electrical Characteristics table under "Power Supply Rejection Ratio". Below 1.7V, PSRR degrades gradually - at 1.6V it remains ≥80dB - but the 95dB minimum is assured starting at 1.7V across the full –40°C to 125°C temperature range.
Is the exposed pad on the LT6004HDD#PBF DFN package electrically connected, and how should it be handled?
Yes, the exposed pad on the LT6004HDD#PBF (8-lead 3mm × 3mm DFN) is internally connected to V– and must be soldered to a PCB copper pour tied to the system ground plane. This connection is required for thermal dissipation (θJA = 160°C/W) and electrical stability, as noted in the Pin Configuration diagram and Absolute Maximum Ratings section. Leaving it unconnected degrades thermal performance and may cause parametric shifts.
LT6004HDD#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:
- 12 nA
- Voltage - Input Offset:
- 2 mV
- 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:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
LT6004HDD#PBF FAQ
1.How can I place an order for LT6004HDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6004HDD#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 LT6004HDD#PBF reliable?
The price and inventory of LT6004HDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6004HDD#PBF is usually 5 days.
3.What payment methods are accepted for LT6004HDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6004HDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6004HDD#PBF?
LT6004HDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6004HDD#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 LT6004HDD#PBF?
For technical support, including LT6004HDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6004HDD#PBF requirements.
6.How does Aetrix verify that LT6004HDD#PBF is sourced from the original manufacturer or authorized distributors?
All LT6004HDD#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 LT6004HDD#PBF meets industry standards.
7.What is the process for return or replacement of LT6004HDD#PBF?
All LT6004HDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6004HDD#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 LT6004HDD#PBF part is unused and in its original packaging.
Return procedure for LT6004HDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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