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Analog Devices Inc. LT6004IDD#TRPBF
- Part No.:
- LT6004IDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LT6004IDD#TRPBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
LT6004IDD#TRPBF from Analog Devices (formerly Linear Technology) is a dual rail-to-rail input/output precision operational amplifier optimized for micropower, low-voltage portable systems. It operates from 1.6V to 16V supply, draws ≤1.6µA per amplifier at –40°C to 85°C, features 500µV max input offset voltage, 90pA max input bias current, and drives 500pF capacitive loads - enabling high-accuracy signal conditioning in battery-powered gas monitors and solar sensor nodes.
For engineers reviewing the LT6004IDD#TRPBF datasheet, LT6004IDD#TRPBF pinout, LT6004IDD#TRPBF application, or LT6004IDD#TRPBF equivalent, this page delivers verified package mapping (8-pin 3mm × 3mm DFN), temperature-grade validation (industrial –40°C to 85°C), rail-to-rail I/O behavior across 1.6V–16V, and real-world performance limits including 2µV/°C offset drift and 100dB CMRR - critical for low-drift, low-power analog front-ends.
Technical Context
The LT6004IDD#TRPBF employs a complementary PNP/NPN input stage with automatic common-mode range handoff, enabling true rail-to-rail input operation from V– to V+. Its folded-cascode second stage and complementary drive output stage deliver rail-to-rail output swing while maintaining stability into 500pF loads without external compensation.
It uses internal cancellation circuitry to suppress input bias current below 90pA over most of the common-mode range, with offset voltage trimmed independently on both input stages to limit total offset shift to ≤1.3mV across full VCM. PSRR (95dB) and CMRR (100dB) are guaranteed down to 1.6V supply, supporting robust performance in noisy, single-cell battery environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 16V - enables direct operation from single Li-ion, alkaline, or energy-harvesting sources without regulation. |
| Quiescent Current | ≤1.6µA per amplifier at –40°C to 85°C - ensures multi-year battery life in always-on sensor nodes. |
| Input Offset Voltage | 500µV max (–40°C to 85°C) - supports µV-level DC accuracy in bridge sensor amplification. |
| Input Bias Current | 90pA max (–40°C to 85°C) - permits use with >10GΩ source impedances without significant error. |
| CMRR / PSRR | 100dB / 95dB min - rejects supply ripple and common-mode noise in unshielded industrial layouts. |
| Capacitive Load Drive | 500pF - eliminates need for isolation resistors when driving ADC inputs or long PCB traces. |
| Offset Drift | 2µV/°C typical - maintains calibration stability across automotive or outdoor temperature ranges. |
Pinout & Package
LT6004IDD#TRPBF is housed in an 8-lead (3mm × 3mm) plastic DFN package with exposed pad connected to V–. The package supports reflow soldering and provides θJA = 160°C/W thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT A | Amplifier A output | Rail-to-rail sourcing/sinking up to 100µA within 100mV of rails; stable into 500pF. |
| 2: –IN A | Inverting input A | Differential node with 90pA max bias; protected by 600kΩ series resistors against overvoltage. |
| 3: +IN A | Non-inverting input A | Differential node with matched impedance; requires symmetrical source impedances for offset minimization. |
| 4: V– | Negative supply | Reference for both amplifiers; exposed pad must be soldered to PCB ground plane for thermal and electrical integrity. |
| 5: V+ | Positive supply | Bypass with 0.01µF ceramic capacitor within 25mm; add 4.7µF electrolytic for heavy transient loads. |
| 6: OUT B | Amplifier B output | Independent rail-to-rail output; electrically isolated from OUT A except via shared V+/V– rails. |
| 7: –IN B | Inverting input B | Functionally identical to –IN A; no crosstalk specified between channels. |
| 8: +IN B | Non-inverting input B | Functionally identical to +IN A; supports independent gain configurations per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Operates with VIN from V– to V+ and VOUT within 100mV of V+ and 50mV of V– at 100µA load - enables full dynamic range utilization in 1.8V systems. |
| Ultralow quiescent current | 1.6µA max per amplifier over –40°C to 85°C - reduces system standby power by >5× vs comparable precision op amps. |
| Phase reversal protection | Prevents output polarity inversion when inputs exceed V– by up to 9V - eliminates latch-up risk in fault-prone sensor interfaces. |
| Guaranteed 500pF capacitive load drive | No external compensation required when driving ADC sample-and-hold or long cables - simplifies layout and reduces BOM count. |
| Split-supply compatibility | Specified from ±1.1V to ±8V - supports bipolar signal conditioning in instrumentation without level-shifting circuitry. |
Applications
| Portable Gas Monitors | Battery-Powered Sensor Nodes |
|---|---|
Use Scenario: Amplifying low-level current output from electrochemical oxygen sensors (e.g., City Technology 4OX(2)) in handheld air quality meters. IC Role / Device Role / Timing Role: Precision transimpedance amplifier with rail-to-rail output driving 12-bit SAR ADC reference buffer. Use Value: 0.95µA total supply current (per LT6003 example) scales linearly to 1.9µA for dual-channel LT6004IDD#TRPBF - extends AA battery life to >5 years in continuous monitoring mode. | Use Scenario: Signal conditioning for thermistor, RTD, or photodiode inputs in solar-powered environmental data loggers. IC Role / Device Role / Timing Role: Dual-channel micropower instrumentation amplifier front-end with matched gain paths. Use Value: 500µV max VOS and 2µV/°C drift ensure <±0.1°C measurement accuracy across –20°C to 60°C ambient without recalibration. |
| Low-Voltage Active Filters | Micropower Reference Buffers |
Use Scenario: 2nd-order Sallen-Key low-pass filter in wearable ECG front-ends powered by coin-cell batteries. IC Role / Device Role / Timing Role: Dual op amp implementing filter poles and unity-gain buffer stage. Use Value: Stable 500pF drive capability eliminates need for isolation resistors, preserving filter Q-factor and phase linearity at cutoff. | Use Scenario: Buffering precision voltage references (e.g., LT6654) in ultra-low-power IoT edge nodes with intermittent wake-up cycles. IC Role / Device Role / Timing Role: Low-noise, low-drift unity-gain buffer isolating reference from switching regulator noise. Use Value: 100dB PSRR rejects >99.99% of 100kHz switching noise, preventing reference modulation during MCU active bursts. |
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 (1.8µA typ), wider offset range (600µV max), same DFN-8 package | Lower PSRR (85dB) limits noise rejection in switching power supply environments | Select when MAXIM's factory-trimmed zero-drift architecture is preferred over LT's bipolar input stage for sub-µV drift. |
| OPA333AIDR | Zero-drift architecture, lower offset (10µV max), higher current (17µA), SOIC-8 only | Not suitable for space-constrained DFN designs; requires PCB redesign | Select when microvolt-level initial offset and near-zero long-term drift outweigh micropower requirements. |
Compared with MAX44260ASA+ and OPA333AIDR, the LT6004IDD#TRPBF uniquely balances sub-µA quiescent current, 500µV offset, rail-to-rail operation, and DFN-8 footprint - making it optimal for size- and power-constrained precision analog stages where zero-drift isn't mandatory.
Availability
LT6004IDD#TRPBF 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 industrial temperature ranges and long production lifecycles.
Supply support for LT6004IDD#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, 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, low-voltage precision signal conditioning in battery- and energy-harvesting–powered systems - prioritizing ultra-low IQ, rail-to-rail operation, and guaranteed performance down to 1.6V.
FAQ
What is the maximum capacitive load the LT6004IDD#TRPBF can drive without oscillation?
The LT6004IDD#TRPBF is fully specified and guaranteed to remain stable driving up to 500pF capacitive loads across all operating conditions, including –40°C to 85°C and 1.6V to 16V supply. This eliminates the need for external isolation resistors in ADC driver or cable-driving applications, as confirmed in the "Capacitive Load Handling" section of the LT6003/LT6004/LT6005 datasheet (Figure G22).
Does the LT6004IDD#TRPBF support true rail-to-rail input operation down to 1.6V supply?
Yes, the LT6004IDD#TRPBF supports rail-to-rail input operation from V– to V+ across its entire 1.6V to 16V supply range. Its dual PNP/NPN input stage automatically transitions between input pairs to maintain functionality at low supply voltages, with input common-mode range explicitly guaranteed from 0V to V+ in the Electrical Characteristics table (page 4, "Input Voltage Range" parameter).
What is the guaranteed input offset voltage specification for LT6004IDD#TRPBF over temperature?
The LT6004IDD#TRPBF has a guaranteed maximum input offset voltage of 500µV over the industrial temperature range of –40°C to 85°C, as documented in the "ELECTRICAL CHARACTERISTICS" table on page 3 of the datasheet under "LT6004DD" grade. This applies to both amplifiers in the dual configuration and is measured at VS = 1.8V and 5V supplies.
Is the exposed pad on the LT6004IDD#TRPBF's DFN package required to be connected to V–?
Yes, the exposed pad (Pin 9, labeled "EXPOSED PAD (PIN 9) CONNECTED TO V–") must be soldered to the PCB's V– (ground) plane. This connection is mandatory for thermal dissipation (θJA = 160°C/W assumes soldered pad) and electrical stability, as stated in the "PIN CONFIGURATION" diagram on page 2 of the datasheet.
Can the LT6004IDD#TRPBF operate from split supplies such as ±2.5V?
Yes, the LT6004IDD#TRPBF is fully specified for split-supply operation from ±1.1V to ±8V. Key parameters including input offset voltage, CMRR (120dB typ), PSRR (105dB typ), and open-loop gain are characterized at ±8V, and Figure G23/G24 in the datasheet confirm stable AC performance under ±2.5V conditions.
LT6004IDD#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:
- 7 pA
- Voltage - Input Offset:
- 100 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
LT6004IDD#TRPBF FAQ
1.How can I place an order for LT6004IDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6004IDD#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 LT6004IDD#TRPBF reliable?
The price and inventory of LT6004IDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6004IDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6004IDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6004IDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6004IDD#TRPBF?
LT6004IDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6004IDD#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 LT6004IDD#TRPBF?
For technical support, including LT6004IDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6004IDD#TRPBF requirements.
6.How does Aetrix verify that LT6004IDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6004IDD#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 LT6004IDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6004IDD#TRPBF?
All LT6004IDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6004IDD#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 LT6004IDD#TRPBF part is unused and in its original packaging.
Return procedure for LT6004IDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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