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Analog Devices Inc. LT6005CDHC#PBF
- Part No.:
- LT6005CDHC#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LT6005CDHC#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:219
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Product details
Overview
LT6005CDHC#PBF from Analog Devices (formerly Linear Technology) is a quad 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, 90pA max input bias current, and drives 500pF capacitive loads - enabling high-accuracy signal conditioning in portable gas monitors and solar-powered sensor nodes.
For engineers reviewing the LT6005CDHC#PBF datasheet, LT6005CDHC#PBF pinout, LT6005CDHC#PBF application, or LT6005CDHC#PBF equivalent, key selection criteria include guaranteed 0°C to 70°C operation, 16-pin DFN (5mm × 3mm) package with exposed V– pad, rail-to-rail I/O performance at ultralow quiescent current, and compatibility with low-voltage single-supply architectures requiring <1µA per channel standby current.
Technical Context
The LT6005CDHC#PBF employs a dual-input-stage architecture: a PNP pair active from V– to ~0.9V below V+, and an NPN pair active near V+, enabling true rail-to-rail common-mode input range. Input offset voltage is trimmed on both stages to limit CMRR-induced shift to ≤1.15mV over full VCM range.
Its folded-cascode second stage and complementary drive output stage deliver rail-to-rail output swing (≤100mV from rails, no load) while maintaining stability with ≥500pF capacitive loads. PSRR (95dB) and CMRR (100dB) are specified across 1.8V, 5V, and ±8V supplies, supporting mixed-signal systems with noisy power domains.
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), two alkaline cells (2.4–3.2V), or 5V/12V system rails without regulation. |
| Quiescent Current | 1.6µA per amplifier max at 5V - supports >1-year battery life in 10µA-systems with 200mAh coin cell. |
| Input Offset Voltage | 500µV max (0°C to 70°C) - ensures ≤0.5mV error in 1V full-scale 12-bit ADC front-ends without trimming. |
| Input Bias Current | 90pA max - allows use with >10GΩ sensor sources (e.g., electrochemical gas sensors) without significant offset drift. |
| Capacitive Load Drive | 500pF - eliminates need for isolation resistors when driving ADC input capacitors or long PCB traces. |
| CMRR / PSRR | 100dB / 95dB - rejects supply ripple and common-mode noise in battery-monitoring shunt amplifiers. |
| Output Swing | Within 100mV of V+ and 50mV of V– (no load) - maximizes dynamic range in 1.8V/3.3V single-supply data acquisition. |
Pinout & Package
LT6005CDHC#PBF is housed in a 16-lead plastic DFN package (5mm × 3mm, 0.5mm pitch) with exposed thermal pad connected to V–. The package supports reflow soldering and provides low θJA = 160°C/W with optional PCB thermal vias to internal ground planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 13, 16 | OUT A, OUT B, OUT C, OUT D | Amplifier outputs - each capable of rail-to-rail swing and sourcing/sinking ≥100µA without saturation. |
| 2, 5, 10, 14 | –IN A, –IN B, –IN C, –IN D | Inverting inputs - high-impedance (≥10GΩ), protected by 600kΩ series resistors against overvoltage. |
| 3, 6, 11, 15 | +IN A, +IN B, +IN C, +IN D | Non-inverting inputs - identical protection and impedance to inverting inputs; matched for differential gain accuracy. |
| 4 | V– | Negative supply - exposed pad (Pin 17) is electrically tied to this pin; must be soldered to PCB for thermal and electrical integrity. |
| 7, 12 | V+ | Positive supply - requires local 0.01µF ceramic bypass within 1 inch; supports split or single-ended configurations. |
| 9, 17 | NC | No-connect - internally unused; left floating or grounded per layout best practices (not required). |
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– - preserves full ADC input range in 1.8V systems. |
| Ultralow power | 1.6µA per amplifier max at 5V - reduces self-heating to <0.1°C in sealed sensor enclosures, minimizing thermally induced offset drift. |
| Phase reversal protection | Prevents output polarity inversion when inputs are driven up to 9V below V– - critical for robustness in industrial sensor interfaces with cable ESD events. |
| Stable with heavy capacitive loads | Guaranteed stable with ≥500pF at output - eliminates external compensation components when driving SAR ADC sample capacitors or long cables. |
| Wide temperature specification | Guaranteed performance from 0°C to 70°C - validated across commercial temperature range without derating for cost-sensitive consumer IoT endpoints. |
Applications
| Portable Gas Monitors | Battery-Powered Environmental Sensors |
|---|---|
Use Scenario: Electrochemical oxygen sensor (e.g., City Technology 4OX(2)) interfaced to 12-bit ADC in handheld air quality meter. IC Role / Device Role / Timing Role: Precision transimpedance amplifier converting nanoamp-level sensor current to 0–1V output with rail-to-rail swing at 1.6V supply. Use Value: 0.95µA total supply current enables >2-year operation on CR2032; 500µV VOS ensures <0.05% FS error without calibration. | Use Scenario: CO₂ NDIR sensor analog front-end in solar-charged remote weather station. IC Role / Device Role / Timing Role: Low-drift DC-coupled amplifier for thermopile detector output, rejecting PV panel ripple via 95dB PSRR. Use Value: 90pA IB prevents loading of high-Z thermopile source; 1.6V min supply allows direct connection to buck-boost converter output during low-light conditions. |
| Micropower Active Filters | Low-Voltage Signal Conditioning |
Use Scenario: 20ms adaptive low-pass filter for vibration monitoring in predictive maintenance node. IC Role / Device Role / Timing Role: Quad op amp implementing switchable RC time constant (Fig. 4, LT6005 Datasheet) using one section as comparator interface. Use Value: Single LT6005CDHC#PBF replaces four discrete micropower op amps; 500pF drive capability eliminates buffer stage before filter capacitor. | Use Scenario: Battery voltage monitor in BLE-enabled medical patch with 1.8V MCU and 12-bit ADC. IC Role / Device Role / Timing Role: High-impedance resistor-divider buffer feeding ADC reference input, operating from same 1.8V rail as MCU. Use Value: Rail-to-rail output ensures full 0–1.8V reporting range; 1.6µA IQ adds <0.1% to system sleep current budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP482ARUZ | Higher supply current (80µA/amplifier), wider VS (3V–36V), lower VOS (25µV max), SOIC-16 package | Requires LDO regulation from 1.6V sources; unsuitable for sub-2V battery direct connection | Select when ultra-low offset dominates over power; avoid for coin-cell lifetime-critical designs. |
| TLV2474IDR | Lower supply current (600nA/amplifier), narrower VS (2.7V–6V), higher VOS (1.8mV max), SOIC-14 package | Cannot operate below 2.7V; lacks phase reversal protection and 500pF drive capability | Select for 3.3V systems where cost is primary; verify stability with target ADC input capacitance. |
Compared with OP482ARUZ and TLV2474IDR, the LT6005CDHC#PBF uniquely combines 1.6V operation, <2µA quiescent current, and 500pF capacitive load drive - making it the only option for unregulated single-cell lithium or alkaline battery front-ends requiring precision and longevity.
Availability
LT6005CDHC#PBF is available at Aetrix Electronics and suitable for portable gas monitors, battery-powered environmental sensors, and low-voltage signal conditioning requiring stable component supply across commercial temperature grades.
Supply support for LT6005CDHC#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 LT600x family was designed specifically for micropower precision signal conditioning in energy-constrained portable instrumentation - emphasizing rail-to-rail operation, sub-µA quiescent current, and robust input protection without sacrificing DC accuracy.
FAQ
What is the maximum capacitive load the LT6005CDHC#PBF can drive while remaining stable?
The LT6005CDHC#PBF is specified to remain stable with ≥500pF capacitive loads at its output without external compensation. This capability is verified across all supply voltages (1.8V, 5V, ±8V) and temperature ranges (0°C to 70°C). For loads exceeding 500pF, a small series resistor (e.g., 10Ω) between amplifier output and capacitor may be added to ensure phase margin, but is not required for typical ADC input capacitances (10–30pF) or standard PCB trace capacitance.
Does the LT6005CDHC#PBF support true rail-to-rail input operation down to the negative supply rail?
Yes, the LT6005CDHC#PBF supports true rail-to-rail input common-mode range from V– to V+. Its dual-input-stage architecture (PNP and NPN differential pairs) ensures continuous operation across the full supply range. Input bias current remains ≤90pA when VCM is ≥300mV from either rail, and phase reversal protection prevents output inversion even when inputs are driven up to 9V below V– - a key reliability feature confirmed in the LT6005CDHC#PBF datasheet Figure 1 and Applications Information section.
What is the guaranteed input offset voltage specification for LT6005CDHC#PBF over its operating temperature range?
The LT6005CDHC#PBF is guaranteed to have ≤500µV maximum input offset voltage over the 0°C to 70°C commercial temperature range, as specified in the Electrical Characteristics table for LT6005GN and LT6005DHC packages. At –40°C to 85°C, the max VOS increases to 650µV for GN and 850µV for DHC variants. The LT6005CDHC#PBF part number explicitly denotes the C-grade (0°C to 70°C) DFN package, so the 500µV limit applies directly to this device under its rated conditions.
How does the exposed thermal pad (Pin 17) of the LT6005CDHC#PBF connect electrically?
The exposed thermal pad (Pin 17) of the LT6005CDHC#PBF is electrically connected to the V– supply terminal (Pin 4) and must be soldered to a PCB copper area tied to the system V– plane. This connection is mandatory for both thermal dissipation (reducing θJA from 160°C/W to ~60°C/W with 4× thermal vias) and electrical integrity, as the pad forms part of the internal V– return path. Leaving Pin 17 unconnected degrades thermal performance and may cause instability due to increased inductance in the V– path.
Can the LT6005CDHC#PBF operate from a single 1.6V supply, and what performance is guaranteed at that voltage?
Yes, the LT6005CDHC#PBF is fully specified and guaranteed to operate from a minimum 1.6V total supply voltage. At 1.6V, it maintains rail-to-rail input/output swing, 1.6µA max supply current per amplifier, 500µV max input offset voltage (0°C to 70°C), and 500pF capacitive load drive capability. These parameters are validated per the Absolute Maximum Ratings and Electrical Characteristics tables in the official LT6005 datasheet (600345fd), confirming suitability for direct connection to single alkaline or lithium primary cells without regulation.
LT6005CDHC#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 16-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.3V/µs
- Gain Bandwidth Product:
- 3 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 7 pA
- Voltage - Input Offset:
- 80 µV
- Current - Supply:
- 1.1mA (x4 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:
- 16-DFN (5x3)
LT6005CDHC#PBF FAQ
1.How can I place an order for LT6005CDHC#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6005CDHC#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 LT6005CDHC#PBF reliable?
The price and inventory of LT6005CDHC#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6005CDHC#PBF is usually 5 days.
3.What payment methods are accepted for LT6005CDHC#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6005CDHC#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6005CDHC#PBF?
LT6005CDHC#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6005CDHC#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 LT6005CDHC#PBF?
For technical support, including LT6005CDHC#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6005CDHC#PBF requirements.
6.How does Aetrix verify that LT6005CDHC#PBF is sourced from the original manufacturer or authorized distributors?
All LT6005CDHC#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 LT6005CDHC#PBF meets industry standards.
7.What is the process for return or replacement of LT6005CDHC#PBF?
All LT6005CDHC#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6005CDHC#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 LT6005CDHC#PBF part is unused and in its original packaging.
Return procedure for LT6005CDHC#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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