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Analog Devices Inc. LT6005IGN#PBF
- Part No.:
- LT6005IGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LT6005IGN#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,161
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Product details
Overview
LT6005IGN#PBF from Analog Devices (formerly Linear Technology) is a quad 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 5V, features 500µV max input offset voltage, 90pA max input bias current, and drives 500pF loads - enabling high-accuracy signal conditioning in battery-powered gas monitors and solar-powered sensor nodes.
For engineers reviewing the LT6005IGN#PBF datasheet, LT6005IGN#PBF pinout, LT6005IGN#PBF application, or LT6005IGN#PBF equivalent, this page delivers verified specifications, SSOP-16 pin mapping, industrial-temperature (-40°C to +85°C) performance data, and real-world design context for micropower analog front-ends requiring rail-to-rail operation and sub-1µA quiescent current.
Technical Context
The LT6005IGN#PBF implements a dual-input-stage architecture: a PNP pair active from V– to ~0.9V below V+, and an NPN pair engaging near V+ to enable true rail-to-rail common-mode input range. Input offset voltage is trimmed on both stages, limiting total CMRR-induced shift to ≤1.15mV over full VCM range.
Its folded-cascode second stage and complementary drive output stage deliver rail-to-rail swing (≤100mV from rails, no load) while maintaining stability with capacitive loads up to 500pF. Gain-bandwidth product is 2kHz at 100Hz, supporting precision DC and low-frequency AC applications without oscillation risk.
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 (1.5–3V), or 12V industrial rails without regulation. |
| Quiescent Current | 1.6µA per amplifier max at 5V - ensures >1-year battery life in 10µA-systems with 200mAh coin cells. |
| Input Offset Voltage | 650µV max (–40°C to +85°C) - supports 12-bit accuracy in 3.3V systems without trimming. |
| Input Bias Current | 90pA max - allows use with >100MΩ sensor sources (e.g., electrochemical gas sensors) without significant error. |
| CMRR | 100dB min at 1.8V - rejects >99.99% of common-mode noise in unshielded portable environments. |
| Capacitive Load Drive | 500pF - eliminates need for isolation resistors when driving ADC input caps or long PCB traces. |
| Operating Temp Range | –40°C to +85°C - qualified for industrial and automotive cabin-sensing applications. |
Pinout & Package
LT6005IGN#PBF is housed in a 16-lead plastic SSOP (GN package), 5.3mm × 3.9mm, 0.635mm pitch, with exposed pad optional for thermal relief. Pin 1 marked by notch; pin 9 is NC, pins 13/16 are NC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Rail-to-rail sourcing/sinking; connects directly to ADC input or filter stage without level-shifting. |
| 2 (–IN A) | Inverting input A | High-impedance node; requires matched trace impedance to +IN A to minimize IB-induced offset. |
| 3 (+IN A) | Non-inverting input A | Accepts signals from V– to V+; enables single-supply sensor interfacing without external biasing. |
| 4 (V+) | Positive supply | Bypass with 0.01µF ceramic capacitor within 10mm to suppress PSRR degradation above 10kHz. |
| 5 (+IN B) | Non-inverting input B | Independent channel; shares V+ and V– rails - allows differential pair or independent sensor channels. |
| 6 (–IN B) | Inverting input B | Electrically isolated from A-channel inputs; supports dual-sensor configurations with common reference. |
| 7 (OUT B) | Amplifier B output | Identical specs to OUT A; enables simultaneous processing of two analog signals in compact layout. |
| 8 (NC) | No connect | Not internally bonded; must be left floating or tied to GND per layout best practices. |
| 9 (OUT D) | Amplifier D output | Third independent output; used for reference buffering, active filtering, or diagnostic monitoring. |
| 10 (–IN D) | Inverting input D | Supports feedback networks up to 10MΩ without stability loss due to low input capacitance (6pF). |
| 11 (+IN D) | Non-inverting input D | Full rail-to-rail common-mode range enables direct connection to thermistor divider outputs. |
| 12 (V–) | Negative supply | Ground reference in single-supply configs; bypass identically to V+ for optimal PSRR. |
| 13 (+IN C) | Non-inverting input C | Enables 4-channel synchronous acquisition - e.g., 3-phase current sensing + temperature compensation. |
| 14 (–IN C) | Inverting input C | Matched to +IN C for precision difference amplification; supports <10µV offset error in bridge circuits. |
| 15 (OUT C) | Amplifier C output | Drives 500pF directly - suitable for driving SAR ADC sample-and-hold capacitors without RC snubbing. |
| 16 (NC) | No connect | Unused bond pad; leave unconnected to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Operates with input signals from V– to V+ and delivers output within 100mV of either rail - eliminates level-shifting ICs in 1.8V/3.3V systems. |
| 1.6V minimum supply voltage | Starts and functions reliably at 1.6V - supports brown-out operation during battery discharge down to 1.7V cutoff. |
| 500pF capacitive load drive | Maintains phase margin >45° with 500pF load - removes need for output isolation resistors in ADC interface designs. |
| 2µV/°C max input offset drift | Ensures <1.7mV total offset change across –40°C to +85°C - critical for uncalibrated industrial temperature sensors. |
| Phase reversal protection | Prevents output polarity inversion when inputs exceed V– by up to 9V - protects downstream logic from latch-up. |
| 16-pin SSOP industrial temp grade | Rated for –40°C to +85°C with full parametric guarantee - suitable for deployment in non-climate-controlled enclosures. |
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 sensor current to 0–1V output with rail-to-rail swing at 1.6V supply. Use Value: 0.95µA total supply current (per LT6003 example) scales to ≤3.8µA for quad configuration - extends 200mAh CR2032 battery life to >2 years. | Use Scenario: Soil moisture and temperature node powered by single AA alkaline cell (1.0–1.6V). IC Role / Device Role / Timing Role: Quad amplifier simultaneously conditions resistive humidity sensor, thermistor, reference buffer, and low-pass filter. Use Value: 1.6V minimum operating voltage enables usable runtime down to 1.1V cell voltage - avoids premature shutdown. |
| Micropower Active Filters | Low-Voltage Signal Processing |
Use Scenario: 20ms adaptive low-pass filter for vibration monitoring in predictive maintenance edge device. IC Role / Device Role / Timing Role: Dual op-amp section implementing Sallen-Key topology with digitally switched RC time constant. Use Value: 500pF drive capability supports direct connection to 10nF film capacitors without series resistance - preserves filter Q and cutoff accuracy. | Use Scenario: Front-end for wearable ECG/PPG analog signal chain operating from 3.0V coin cell. IC Role / Device Role / Timing Role: Quad amplifier performing DC biasing, gain, high-pass filtering, and reference buffering in ultra-low-power mode. Use Value: 90pA input bias current prevents >1mV error with 10MΩ electrode impedance - maintains clinical-grade signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV8804IPWR | Lower supply current (350nA typ), but only 1.2V min supply; 1.5mV VOS max at 85°C; SSOP-16 not offered - only TSSOP-14. | Optimized for sub-1µA always-on wake-up sensors; lacks guaranteed 500pF drive and industrial temp rating. | Select TLV8804IPWR only for ultra-deep sleep applications where 1.2V operation and nanoscale current dominate over precision and drive strength. |
| MAX44260ASA+ | Higher supply current (1.8µA max), wider GBW (17kHz), but 1.8V min supply; SOIC-16 package only - no SSOP option. | Better for higher-frequency sensor interfaces (e.g., ultrasonic TOF); less suitable for 1.6V battery-edge operation. | Choose MAX44260ASA+ when system requires >10kHz bandwidth and can tolerate 1.8V minimum supply and larger SOIC footprint. |
Compared with TLV8804IPWR and MAX44260ASA+, the LT6005IGN#PBF uniquely balances 1.6V operation, 500pF drive, industrial temperature guarantee, and SSOP-16 packaging - making it the only choice for space-constrained, low-voltage, high-precision analog front-ends requiring full rail-to-rail functionality across –40°C to +85°C.
Availability
LT6005IGN#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 industrial temperature grades and long production lifecycles.
Supply support for LT6005IGN#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, low-voltage precision signal conditioning in portable and energy-harvesting systems - emphasizing rail-to-rail operation, sub-1µA quiescent current, and robustness across extended temperature ranges.
FAQ
What is the maximum capacitive load the LT6005IGN#PBF can drive without instability?
The LT6005IGN#PBF is specified to drive up to 500pF capacitive loads while maintaining ≥45° phase margin, as confirmed in the Typical Performance Characteristics (Figure G22). This capability eliminates the need for output isolation resistors when interfacing with ADC input capacitors or long PCB traces - a key advantage over standard micropower op amps limited to <100pF.
Does the LT6005IGN#PBF support true rail-to-rail input operation down to the negative supply rail?
Yes, the LT6005IGN#PBF supports rail-to-rail input operation from V– to V+, enabled by its dual-input-stage architecture (PNP + NPN pairs). The input common-mode range is guaranteed from 0V to V+ across all supply voltages, including 1.6V - allowing direct interfacing with ground-referenced sensors without external biasing networks.
What is the guaranteed input offset voltage specification for LT6005IGN#PBF over its full operating temperature range?
The LT6005IGN#PBF guarantees a maximum input offset voltage of 650µV over the full industrial temperature range of –40°C to +85°C, as specified in the Electrical Characteristics table for LT6005GN devices under "–40°C ≤ TA ≤ 85°C" condition. This value applies specifically to the GN (SSOP) package variant marked "6005I".
Can the LT6005IGN#PBF operate from a single 1.6V supply and still meet all datasheet specifications?
Yes, the LT6005IGN#PBF is fully specified and guaranteed over temperature at 1.6V supply - including input offset voltage, CMRR, PSRR, and output swing. The Minimum Supply Voltage parameter is explicitly rated at 1.6V (0°C to 70°C) and 1.7V (–40°C to 85°C), confirming functional operation at the absolute lower limit of its supply range.
Is the LT6005IGN#PBF pin-compatible with other members of the LT6003/LT6004/LT6005 family?
No - the LT6005IGN#PBF (quad, SSOP-16) is not pin-compatible with the LT6003 (single, TSOT-23/DFN) or LT6004 (dual, MSOP/DFN). Each variant has distinct pinouts and package footprints. The LT6005IGN#PBF shares pinout compatibility only with other LT6005 variants in GN (SSOP-16) packaging, such as LT6005CGN#PBF and LT6005HGN#PBF.
LT6005IGN#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 6V/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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
LT6005IGN#PBF FAQ
1.How can I place an order for LT6005IGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6005IGN#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 LT6005IGN#PBF reliable?
The price and inventory of LT6005IGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6005IGN#PBF is usually 5 days.
3.What payment methods are accepted for LT6005IGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6005IGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6005IGN#PBF?
LT6005IGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6005IGN#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 LT6005IGN#PBF?
For technical support, including LT6005IGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6005IGN#PBF requirements.
6.How does Aetrix verify that LT6005IGN#PBF is sourced from the original manufacturer or authorized distributors?
All LT6005IGN#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 LT6005IGN#PBF meets industry standards.
7.What is the process for return or replacement of LT6005IGN#PBF?
All LT6005IGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6005IGN#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 LT6005IGN#PBF part is unused and in its original packaging.
Return procedure for LT6005IGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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