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Analog Devices Inc. LT6004HDD#TRPBF
- Part No.:
- LT6004HDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LT6004HDD#TRPBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,795
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Product details
Overview
LT6004HDD#TRPBF 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, 2µV/°C drift, and drives 500pF capacitive loads - enabling high-accuracy signal conditioning in portable gas monitors and low-voltage sensor interfaces.
For engineers reviewing the LT6004HDD#TRPBF datasheet, LT6004HDD#TRPBF pinout, LT6004HDD#TRPBF application, or LT6004HDD#TRPBF equivalent, key selection criteria include guaranteed –40°C to 125°C operation, 8-pin 3mm × 3mm DFN package with exposed V– pad, rail-to-rail I/O performance at sub-1µA quiescent current, and compatibility with single-supply 1.6V–5V systems requiring <1µV/°C drift stability.
Technical Context
The LT6004HDD#TRPBF implements a dual-input complementary PNP/NPN rail-to-rail input stage with active offset cancellation, enabling full common-mode range (V– to V+) while maintaining 90pA max input bias current. Its folded-cascode second stage and complementary drive output stage deliver true rail-to-rail swing (≤100mV from rails) without phase reversal, even when inputs exceed V– by up to 9V.
It uses adaptive biasing to maintain stable 1µA quiescent current across temperature and supply voltage (1.6V–16V), with PSRR of 95dB and CMRR of 100dB at 1.8V supply - critical for precision DC-coupled sensing in noisy, low-power environments where supply headroom is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 16V - supports direct connection to single-cell Li-ion (3.0–4.2V), alkaline (1.5V), or 5V logic rails without regulation. |
| Quiescent Current | ≤1.6µA per amplifier at 5V - enables >10-year battery life in coin-cell-powered IoT sensors. | Input Offset Voltage | 500µV max over –40°C to 125°C - ensures <0.1% gain error in 5V-span 12-bit ADC front-ends. |
| Offset Drift | 2µV/°C max - limits thermal-induced error to <250µV over full automotive temperature range. |
| Input Bias Current | 90pA max - allows use with >100MΩ source impedances (e.g., pH electrodes, piezoresistive bridges) without significant offset shift. |
| Capacitive Load Drive | 500pF - eliminates need for isolation resistors when driving ADC sample capacitors or long PCB traces. |
| CMRR / PSRR | 100dB / 95dB - rejects power rail noise and common-mode interference in unshielded portable designs. |
Pinout & Package
LT6004HDD#TRPBF is housed in an 8-lead 3mm × 3mm plastic DFN package with exposed thermal pad connected to V–. The package supports reflow soldering and provides low θJA = 160°C/W for thermal management in compact layouts.
| 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 - –IN A | Inverting input A | Differential input node with 90pA max bias current; accepts signals from V– to V+. |
| 3 - +IN A | Non-inverting input A | Differential input node matched to –IN A; requires symmetrical source impedance to minimize IB-induced offset. |
| 4 - V– | Negative supply | Reference for both amplifiers; exposed pad (Pin 9) must be soldered to PCB ground plane for thermal and electrical stability. |
| 5 - V+ | Positive supply | Single or dual supply rail; bypass with 0.01µF ceramic capacitor placed ≤25mm from pin. |
| 6 - OUT B | Amplifier B output | Independent rail-to-rail output identical in performance to OUT A; enables dual-channel signal paths. |
| 7 - –IN B | Inverting input B | Second amplifier's differential input; electrically isolated from Channel A except via shared V+/V– rails. |
| 8 - +IN B | Non-inverting input B | Second amplifier's differential input; supports independent biasing and feedback networks. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization in 1.6V–5V single-supply systems without level-shifting circuitry. |
| 1µA quiescent current | Reduces average system power by >90% vs. standard precision op amps, extending battery life in portable instrumentation. |
| Phase reversal protection | Prevents output polarity inversion when inputs are driven 9V below V–, eliminating latch-up risk in sensor fault conditions. |
| 500pF capacitive load drive | Allows direct interface to SAR ADC input capacitors and long traces without external isolation resistors or compensation. |
| –40°C to 125°C operation | Qualified for under-hood automotive, industrial monitoring, and outdoor environmental sensor deployments. |
Applications
| Portable Gas Monitors | Battery-Powered Environmental Sensors |
|---|---|
Use Scenario: Detecting trace O₂ or CO concentrations using electrochemical cells with µA-level output currents. IC Role / Device Role / Timing Role: Precision transimpedance amplifier converting sensor current to voltage with rail-to-rail output swing into low-power ADC. Use Value: 90pA input bias current prevents loading of high-impedance gas cell outputs; 1µA supply current enables multi-year operation on CR2032. | Use Scenario: Signal conditioning for thermistor, RTD, or humidity sensor bridges in wireless weather stations. IC Role / Device Role / Timing Role: Low-drift instrumentation amplifier front-end with matched input bias for bridge excitation and differential gain. Use Value: 2µV/°C offset drift minimizes temperature-induced calibration drift; 1.6V minimum supply allows direct connection to buck-boost regulators. |
| Micropower Active Filters | Low-Voltage Medical Wearables |
Use Scenario: 2nd-order Sallen-Key anti-aliasing filter preceding ultra-low-power ADCs in predictive maintenance nodes. IC Role / Device Role / Timing Role: Dual op amp implementing unity-gain buffer and filter integrator with matched channel characteristics. Use Value: Dual configuration reduces component count and board area; 500pF drive capability eliminates need for output isolation resistors. | Use Scenario: Biopotential acquisition (ECG/EMG) in disposable patch monitors powered by thin-film batteries. IC Role / Device Role / Timing Role: High-input-impedance, low-noise amplifier for electrode interface with DC-coupled baseline stabilization. Use Value: Rail-to-rail input accepts ±100mV biopotential signals without clipping; 500µV max VOS ensures <0.5% measurement error at 100mV full-scale. |
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 |
|---|---|---|---|
| LTC2050HMS8#TRPBF | Zero-drift architecture; 0.5µV max VOS, 0.005µV/°C drift - superior DC accuracy but 1.1µA IS vs. LT6004HDD#TRPBF's 1.6µA. | Used where ultra-low drift dominates over supply current; not rated for 125°C operation (max 105°C). | Select LTC2050HMS8#TRPBF when VOS drift <0.01µV/°C is required and temperature range is ≤105°C. |
| OPA333AIDR | Zero-drift, 17µA IS, 1.8V–5.5V supply - higher current draw but wider bandwidth (350kHz GBW vs. 2kHz). | Preferred for AC-coupled sensor interfaces needing >100Hz signal bandwidth; unsuitable for multi-year battery life. | Choose OPA333AIDR when bandwidth >100Hz is mandatory and supply current budget allows >10× LT6004HDD#TRPBF's consumption. |
Compared with LTC2050HMS8#TRPBF and OPA333AIDR, LT6004HDD#TRPBF uniquely balances sub-2µA quiescent current, 125°C rating, and 500µV VOS - making it optimal for long-life, high-temperature, DC-precision applications where zero-drift overhead is unnecessary.
Availability
LT6004HDD#TRPBF is available at Aetrix Electronics and suitable for portable gas monitors, battery-powered environmental sensors, and micropower active filters requiring stable component supply across automotive and industrial temperature grades.
Supply support for LT6004HDD#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) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LT6003/LT6004/LT6005 family was designed specifically for ultra-low-power precision signal conditioning in energy-constrained portable and remote sensing applications - emphasizing rail-to-rail operation, nanopower consumption, and extended temperature reliability.
FAQ
What is the maximum operating temperature range for the LT6004HDD#TRPBF?
The LT6004HDD#TRPBF is specified for continuous operation from –40°C to +125°C, with all key parameters (including input offset voltage, supply current, and CMRR) guaranteed across this full range. This makes LT6004HDD#TRPBF suitable for under-hood automotive, industrial control, and outdoor environmental monitoring applications where ambient temperatures exceed 85°C.
Does the LT6004HDD#TRPBF require external compensation for stability with capacitive loads?
No - the LT6004HDD#TRPBF is internally compensated to drive up to 500pF directly, including typical ADC input capacitance and PCB trace capacitance. Stability is maintained without external components when sourcing ≤250µA into loads >20kΩ; for heavier loads, a 1µF capacitor in series with a 2kΩ resistor from output to ground is recommended per the datasheet.
How does the LT6004HDD#TRPBF achieve rail-to-rail input operation without phase reversal?
The LT6004HDD#TRPBF uses a dual-input complementary PNP/NPN stage with active cancellation circuitry and integrated 600kΩ input protection resistors. When inputs are driven up to 9V below V–, the internal phase reversal protection remains active, preventing output polarity inversion - a critical feature for sensor interfaces subject to transient overvoltage faults.
Can the LT6004HDD#TRPBF operate from a 1.6V single supply?
Yes - the LT6004HDD#TRPBF is fully specified and guaranteed to operate from 1.6V to 16V total supply voltage. At 1.6V, it maintains rail-to-rail input/output swing, 1µA quiescent current, and functional CMRR/PSRR, enabling direct interface with emerging low-voltage energy harvesting circuits and single-cell primary batteries.
What is the purpose of the exposed pad (Pin 9) on the LT6004HDD#TRPBF DFN package?
The exposed pad (Pin 9) on the LT6004HDD#TRPBF is internally connected to V– and must be soldered to a PCB copper pour tied to the system ground plane. This provides critical thermal dissipation (reducing θJA from 160°C/W to ~60°C/W with adequate copper) and improves electrical stability by lowering V– impedance and reducing ground bounce in dual-amplifier configurations.
LT6004HDD#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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#TRPBF FAQ
1.How can I place an order for LT6004HDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6004HDD#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 LT6004HDD#TRPBF reliable?
The price and inventory of LT6004HDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6004HDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6004HDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6004HDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6004HDD#TRPBF?
LT6004HDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6004HDD#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 LT6004HDD#TRPBF?
For technical support, including LT6004HDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6004HDD#TRPBF requirements.
6.How does Aetrix verify that LT6004HDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6004HDD#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 LT6004HDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6004HDD#TRPBF?
All LT6004HDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6004HDD#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 LT6004HDD#TRPBF part is unused and in its original packaging.
Return procedure for LT6004HDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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