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Analog Devices Inc. LT6004IDD#PBF
- Part No.:
- LT6004IDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LT6004IDD#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,290
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Product details
Overview
LT6004IDD#PBF 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, solar sensors, and micropower active filters.
For engineers reviewing the LT6004IDD#PBF datasheet, LT6004IDD#PBF pinout, LT6004IDD#PBF application, or LT6004IDD#PBF equivalent, this page delivers verified specifications, package-validated pin functions, temperature-grade performance boundaries, and real-world design context for ultra-low-power analog front-ends requiring rail-to-rail operation below 2V.
Technical Context
The LT6004IDD#PBF implements 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 (≤100mV from rails, no load) while maintaining stability into 500pF loads without external compensation.
Offset voltage is trimmed on both input stages to limit CMRR-induced shift to ≤1.3mV over full common-mode range; input bias current remains ≤90pA when VCM stays ≥300mV from either rail, supported by internal cancellation circuitry that deactivates near supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 16V - enables direct operation from single-cell Li-ion (2.7–4.2V), coin cell (1.5V), or 12V industrial rails without regulation. |
| Quiescent Current | 1.6µA per amplifier max at –40°C to +85°C - ensures multi-year battery life in always-on sensor nodes drawing <2µA total system current. |
| Input Offset Voltage | 500µV max (industrial temp) - supports 12-bit accuracy in 2V full-scale systems without trimming. |
| Input Bias Current | 90pA max - permits use with >10GΩ sensor sources (e.g., electrochemical gas cells) without significant error. |
| Capacitive Load Drive | 500pF - eliminates need for isolation resistors when driving ADC input capacitors or long PCB traces. |
| CMRR / PSRR | 100dB / 95dB - rejects supply noise and common-mode interference in unshielded, low-voltage sensor environments. |
| Output Swing | Within 100mV of V+ and 50mV of V– (no load) - maximizes dynamic range in 1.8V systems with 0.1V headroom. |
Pinout & Package
LT6004IDD#PBF is housed in an 8-lead (3mm × 3mm) plastic DFN package with exposed pad connected to V–. The package supports thermal dissipation up to 125°C junction temperature and requires soldering of the exposed pad to PCB ground plane for optimal thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT A | Amplifier A output | Delivers rail-to-rail buffered signal; sinks/source up to 5mA at 1.8V supply. |
| 2 - V– | Negative supply / reference | Common return for both amplifiers; exposed pad must be soldered to PCB ground. |
| 3 - +IN A | Inverting input of Amp A | High-impedance node (≥10GΩ); bias current ≤90pA within 300mV of rails. |
| 4 - –IN A | Non-inverting input of Amp A | Matches +IN A characteristics; differential input voltage limited to ±18V absolute max. |
| 5 - –IN B | Inverting input of Amp B | Electrically isolated from Amp A inputs; shares same V– and V+ supply pins. |
| 6 - +IN B | Non-inverting input of Amp B | Independent high-Z node; supports separate sensor channel interfacing. |
| 7 - V+ | Positive supply | Bypass with 0.01µF ceramic capacitor within 25mm; supports split-supply operation. |
| 8 - OUT B | Amplifier B output | Functionally identical to OUT A; enables dual-channel signal conditioning in same footprint. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input & output | Operates with VCM = V– to V+ and VOUT = V– + 50mV to V+ – 100mV - preserves full signal range in 1.8V systems. |
| Ultralow quiescent current | 1.6µA per amplifier max across –40°C to +85°C - reduces self-heating and extends battery runtime in IoT edge nodes. |
| Phase reversal protection | Prevents output polarity inversion when inputs are driven up to 9V below V– - enhances robustness in noisy industrial environments. |
| Stable into 500pF | No external compensation required when driving ADC sample capacitors or long cables - simplifies layout and reduces BOM count. |
| Guaranteed performance at 1.8V | Specified for VOS, IB, AVOL, and CMRR at 1.8V supply - eliminates guesswork in low-voltage energy harvesting designs. |
Applications
| Portable Gas Monitor | Battery-Powered Sensor Node |
|---|---|
Use Scenario: Electrochemical oxygen sensor (e.g., City Technology 4OX(2)) outputs nA-level current requiring precision I/V conversion and filtering in handheld safety equipment. IC Role / Device Role / Timing Role: Dual op-amp configures as transimpedance amplifier (Amp A) and 2nd-order active filter (Amp B) - both operating from 1.6V supply. Use Value: 90pA input bias enables <0.1% gain error with 10MΩ feedback resistor; 1.6µA total quiescent current allows >5-year CR2032 battery life. | Use Scenario: Soil moisture and temperature sensor array in agricultural IoT gateway powered by single AA alkaline cell (1.5V nominal). IC Role / Device Role / Timing Role: LT6004IDD#PBF provides rail-to-rail buffering and level-shifting for multiple analog sensor outputs before multiplexed ADC sampling. Use Value: 1.6V minimum supply allows operation down to 1.5V battery voltage without brownout; 500µV VOS ensures <0.025% FS error in 2V measurement range. |
| Low-Voltage Active Filter | Micropower Reference Buffer |
Use Scenario: 1Hz high-pass filter for ECG front-end in wearable health monitor using coin-cell power. IC Role / Device Role / Timing Role: Configured as Sallen-Key topology with 1% metal-film resistors and NP0 capacitors - both amplifiers used per filter stage. Use Value: 500pF capacitive load drive eliminates need for isolation resistor; 1.6µA per amp prevents filter Q-factor drift due to supply current variation. | Use Scenario: Buffering a 1.25V bandgap reference (e.g., LT1019) to drive multiple 12-bit SAR ADCs in a low-power data logger. IC Role / Device Role / Timing Role: One amplifier acts as unity-gain buffer; second provides precision gain/offset adjustment for calibrated sensor scaling. Use Value: 100dB PSRR rejects reference noise coupling from digital sections; rail-to-rail output ensures full 1.25V reference delivery even at 1.8V supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX44260ASA+ | Higher supply current (1.8µA vs 1.6µA), lower VOS (200µV max), same 1.6V min supply and rail-to-rail I/O. | Preferred where tighter initial offset is critical (e.g., factory-calibrated medical sensors), but less optimal for ultra-long-life battery apps. | Select MAX44260ASA+ when VOS budget <250µV is mandatory and supply current increase is acceptable. |
| OPA2333AIDR | Zero-drift architecture (0.02µV/°C drift vs 2µV/°C), higher supply current (17µA), 1.8V min supply - not rated below 1.8V. | Suitable for high-precision DC-coupled systems requiring sub-µV drift, but incompatible with 1.6V–1.7V energy-harvesting supplies. | Choose OPA2333AIDR only if drift specification dominates and supply ≥1.8V is guaranteed. |
Compared with MAX44260ASA+ and OPA2333AIDR, the LT6004IDD#PBF uniquely balances sub-2µA quiescent current, 1.6V operation, and 500µV VOS - making it the only option qualified for multi-year battery life in sub-2V sensor signal chains where moderate initial offset is acceptable.
Availability
LT6004IDD#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 industrial temperature ranges and long production lifecycles.
Supply support for LT6004IDD#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, formed through the acquisition of Linear Technology in 2017.
The LT6003/LT6004/LT6005 family was designed specifically for micropower, precision signal conditioning in space-constrained, battery-dependent applications - emphasizing ultra-low supply current without sacrificing rail-to-rail functionality or DC accuracy.
FAQ
What is the minimum supply voltage specification for LT6004IDD#PBF across its full operating temperature range?
The LT6004IDD#PBF is guaranteed to operate down to 1.6V supply voltage at temperatures from –40°C to +85°C, as confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables. This 1.6V minimum enables direct interface with primary lithium and energy-harvesting sources where regulated 1.8V is unavailable. Performance parameters including input offset voltage and open-loop gain remain fully specified at this voltage.
Does LT6004IDD#PBF support true rail-to-rail input operation, and what is the input voltage range limitation?
Yes, the LT6004IDD#PBF supports true rail-to-rail input operation from V– to V+, with guaranteed common-mode rejection across the full range. Input voltage range is specified as 0V to V+ (for single-supply) and –8V to +8V (for ±8V supplies), and the device incorporates phase reversal protection to prevent output inversion when inputs go up to 9V below V–. Input bias current remains ≤90pA when VCM stays ≥300mV from either rail.
What is the maximum capacitive load the LT6004IDD#PBF can drive without external compensation?
The LT6004IDD#PBF is characterized to drive up to 500pF capacitive loads stably without requiring external series resistance or compensation components. This capability is validated across all supply voltages (1.8V, 5V, ±8V) and temperature ranges, and is explicitly stated in the datasheet's Features and Electrical Characteristics sections. It eliminates the need for isolation resistors when interfacing directly with ADC input capacitors or long PCB traces.
How does the input offset voltage drift behave over temperature for LT6004IDD#PBF?
The LT6004IDD#PBF exhibits a maximum input offset voltage drift of 2µV/°C over the industrial temperature range (–40°C to +85°C), with typical performance at 2µV/°C. This drift value applies to the MS8 and DFN packages (including LT6004IDD#PBF) and is guaranteed by correlation testing. The low drift ensures minimal calibration drift in battery-powered instrumentation operating across wide ambient conditions.
Is the exposed thermal pad on the LT6004IDD#PBF package required to be connected to PCB ground?
Yes, the exposed pad (Pin 9) on the LT6004IDD#PBF's 8-lead DFN package must be soldered to the PCB ground plane. The datasheet specifies that the exposed pad is internally connected to V–, and proper thermal and electrical performance - including junction temperature control up to 125°C - depends on this connection. Failure to solder the pad may result in thermal runaway or degraded PSRR/CMRR performance.
LT6004IDD#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:
- 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#PBF FAQ
1.How can I place an order for LT6004IDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6004IDD#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 LT6004IDD#PBF reliable?
The price and inventory of LT6004IDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6004IDD#PBF is usually 5 days.
3.What payment methods are accepted for LT6004IDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6004IDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6004IDD#PBF?
LT6004IDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6004IDD#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 LT6004IDD#PBF?
For technical support, including LT6004IDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6004IDD#PBF requirements.
6.How does Aetrix verify that LT6004IDD#PBF is sourced from the original manufacturer or authorized distributors?
All LT6004IDD#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 LT6004IDD#PBF meets industry standards.
7.What is the process for return or replacement of LT6004IDD#PBF?
All LT6004IDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6004IDD#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 LT6004IDD#PBF part is unused and in its original packaging.
Return procedure for LT6004IDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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