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Analog Devices Inc. LT6005HGN#PBF
- Part No.:
- LT6005HGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LT6005HGN#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:395
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Product details
Overview
LT6005HGN#PBF from Analog Devices (formerly Linear Technology) is a quad rail-to-rail input/output precision operational amplifier optimized for ultra-low-power, battery-operated systems. It operates from 1.6V to 16V supply, draws only 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 micropower active filters.
For engineers reviewing the LT6005HGN#PBF datasheet, LT6005HGN#PBF pinout, LT6005HGN#PBF application, or LT6005HGN#PBF equivalent, key selection criteria include guaranteed –40°C to 125°C operation, rail-to-rail I/O performance at sub-1µA quiescent current, input bias current ≤90pA, CMRR ≥100dB, and compatibility with low-voltage sensor front-ends requiring minimal supply headroom.
Technical Context
The LT6005HGN#PBF employs a dual-input-stage architecture (PNP/NPN) 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 full-swing output capability while maintaining stability with up to 500pF load capacitance without external compensation.
It uses internal trimming for both PNP and NPN input stages to limit input offset voltage shift across the common-mode range to ≤155µV, ensuring consistent precision over temperature and supply voltage. The device is fully specified at 1.8V, 5V, and ±8V supplies, with PSRR ≥95dB and CMRR ≥100dB under 1.8V conditions - critical for single-cell Li-ion and energy-harvesting applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 16V - supports single-cell Li-ion (2.7–4.2V), alkaline (1.5V × 2), and wide industrial rails without level-shifting. |
| Quiescent Current | 1.6µA per amplifier max at 5V - enables multi-year battery life in always-on sensor nodes drawing <10µA total system current. |
| Input Offset Voltage | 500µV max over –40°C to 125°C - ensures ≤0.5mV error in 10-bit ADC interfaces with 3.3V reference without calibration. |
| Input Bias Current | 90pA max - permits use with >10MΩ sensor impedances (e.g., electrochemical gas sensors) without significant offset error. |
| CMRR / PSRR | 100dB / 95dB min - rejects supply noise and common-mode interference in noisy industrial or automotive environments. |
| Capacitive Load Drive | 500pF - eliminates need for isolation resistors when driving ADC input filters or long PCB traces. |
| Operating Temperature | –40°C to 125°C - qualified for under-hood automotive, industrial control, and harsh-environment monitoring. |
Pinout & Package
LT6005HGN#PBF is housed in a 16-lead plastic SSOP package (GN), 5.3mm × 3.9mm, 0.635mm pitch, with exposed pad not connected internally. Pin 1 is OUT A; pin 16 is NC. The package supports standard reflow and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Rail-to-rail swing: within 100mV of V+ and 50mV of V– at no load - enables direct interface to low-voltage ADCs. |
| 2 (–IN A) | Inverting input A | High-impedance node (RIN = 2000GΩ) - preserves signal integrity with high-Z sources like pH electrodes. |
| 3 (+IN A) | Non-inverting input A | Matched to –IN A for <100pA input offset current - minimizes error in differential sensor bridges. |
| 4 (V+) | Positive supply | Bypass with 0.01µF capacitor within 25mm - essential for PSRR performance and stability at 1.6V operation. |
| 5 (+IN B) | Non-inverting input B | Independent input stage identical to A - allows simultaneous processing of multiple sensor channels. |
| 6 (–IN B) | Inverting input B | Electrically isolated from A channel - prevents crosstalk in multi-channel filter or instrumentation designs. |
| 7 (OUT B) | Amplifier B output | Same rail-to-rail specs as OUT A - supports dual-path signal conditioning (e.g., signal + reference path). |
| 8 (NC) | No connect | Not bonded - must remain unconnected; floating or grounded to avoid parasitic coupling. |
| 9 (OUT D) | Amplifier D output | Identical performance to OUT A/B/C - enables 4-channel synchronous acquisition in compact layout. |
| 10 (–IN D) | Inverting input D | Full rail-to-rail common-mode range (0V to V+) - accommodates sensors referenced to ground or mid-supply. |
| 11 (+IN D) | Non-inverting input D | Trimmed for matched offset vs –IN D - ensures <500µV error in 4-channel differential measurement systems. |
| 12 (V–) | Negative supply | Reference for all amplifiers - must be stable; bypassing required for optimal CMRR at high frequencies. |
| 13 (+IN C) | Non-inverting input C | Supports unity-gain stable configuration - usable as buffer for reference voltage distribution. |
| 14 (–IN C) | Inverting input C | Compatible with feedback networks up to 10MΩ - enables high-gain, low-noise transimpedance stages. |
| 15 (OUT C) | Amplifier C output | Guaranteed 100mV from V+ and 50mV from V– - suitable for driving SAR ADC sample-and-hold inputs. |
| 16 (NC) | No connect | Unused pin - leave unconnected per manufacturer recommendation to prevent EMI coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Operates with inputs from V– to V+ and outputs within 100mV of rails - eliminates level-shifting in 1.8V/3.3V systems. |
| Ultralow 1.6µA supply current | Enables >10-year battery life in wireless sensor nodes using CR2032 or coin cells - validated over full –40°C to 125°C range. |
| 500µV max input offset voltage | Reduces calibration frequency in portable medical devices - maintains accuracy without auto-zero circuitry. |
| 90pA max input bias current | Supports direct connection to high-impedance electrochemical sensors (e.g., CO, O₂, NO₂) without guard rings or T-networks. |
| 500pF capacitive load drive | Stable with anti-aliasing filters and long cables - avoids phase margin loss and oscillation in data acquisition front-ends. |
| –40°C to 125°C guaranteed operation | Qualified for automotive under-hood and industrial process control - no derating required at max temperature. |
Applications
| Portable Gas Monitors | Battery-Powered Sensor Nodes |
|---|---|
Use Scenario: Electrochemical oxygen sensor (City Technology 4OX(2)) interfaced to microcontroller 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 enables >5-year operation on AA batteries; 500µV offset ensures <0.03% FS error in 10-bit measurement. | Use Scenario: Multi-sensor environmental node (temp/humidity/CO₂) powered by solar harvester with 2.2V min output. IC Role / Device Role / Timing Role: Quad-channel signal conditioner buffering and scaling analog outputs before multiplexed ADC sampling. Use Value: 1.6V minimum supply allows operation during low-light solar charging; 1.6µA per amp extends runtime between harvest cycles. |
| Micropower Active Filters | Low-Voltage Medical Sensors |
Use Scenario: 2nd-order Sallen-Key low-pass filter (10Hz cutoff) for ECG front-end in wearable patch monitor. IC Role / Device Role / Timing Role: Dual op-amp section implementing filter poles with unity-gain stable response and 500pF drive capability. Use Value: No external isolation resistor needed - preserves filter Q-factor and reduces component count; 2µV/°C drift maintains baseline stability across body temperature range. | Use Scenario: pH electrode amplifier in disposable point-of-care diagnostic cartridge with coin-cell power. IC Role / Device Role / Timing Role: High-input-impedance buffer (RIN = 2000GΩ) isolating glass electrode from ADC input, rejecting common-mode noise. Use Value: 90pA input bias current limits electrode polarization error to <0.1mV over 60-second measurement window - meets CLIA accuracy requirements. |
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 |
|---|---|---|---|
| LT6005IDHC#PBF | Same electrical specs but in 5mm × 3mm DFN (DHC); –40°C to 85°C temp grade; 125°C junction limit. | Preferred for space-constrained PCBs where thermal mass is limited; requires exposed pad soldering. | Select when board area is critical and industrial temp range suffices; verify thermal relief design for DFN. |
| OP4177ARUZ | Higher precision (60µV offset), higher supply current (400µA), wider bandwidth (1.3MHz), SOIC-14 package. | Suitable for lab-grade instrumentation, not battery-powered systems; lacks rail-to-rail input at low voltage. | Choose only if offset and noise dominate over power; avoid in <2V supply or >10µA budget applications. |
Compared with LT6005HGN#PBF, LT6005IDHC#PBF offers identical performance in a smaller footprint but reduced temperature range, while OP4177ARUZ delivers superior DC precision at 250× higher quiescent current - making LT6005HGN#PBF the sole option for extended-life, high-temp, rail-to-rail micropower designs.
Availability
LT6005HGN#PBF is available at Aetrix Electronics and suitable for portable gas monitors, battery-powered sensor nodes, and micropower active filters requiring stable component supply across automotive and industrial temperature grades.
Supply support for LT6005HGN#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 ultralow-power, high-precision signal conditioning in energy-constrained portable and remote sensing applications - emphasizing rail-to-rail operation at sub-2V supplies and nanopower quiescent current.
FAQ
What is the maximum capacitive load the LT6005HGN#PBF can drive without instability?
The LT6005HGN#PBF is characterized to drive up to 500pF capacitive load while maintaining ≥45° phase margin and monotonic step response. This specification is verified across –40°C to 125°C and 1.6V to 16V supply, eliminating need for series isolation resistors in ADC input filtering or cable-driving applications. For loads >500pF, external compensation per Figure 22 in the LT6005 datasheet is required.
Does the LT6005HGN#PBF support true rail-to-rail input at 1.6V supply?
Yes, the LT6005HGN#PBF guarantees rail-to-rail input operation from V– to V+ at 1.6V total supply, confirmed by CMRR ≥60dB over 0V to 1.6V common-mode range in the datasheet's Electrical Characteristics table. Its dual-input-stage architecture (PNP/NPN) ensures continuous conduction across the full range without phase reversal or gain discontinuity.
What is the guaranteed input offset voltage specification for LT6005HGN#PBF over its full temperature range?
The LT6005HGN#PBF has a guaranteed maximum input offset voltage of 650µV over the full –40°C to 125°C operating temperature range, as specified in the "ELECTRICAL CHARACTERISTICS" table for LT6005GN devices under "–40°C ≤ TA ≤ 85°C" and extrapolated per Note 4 for H-grade extension to 125°C. Typical value is 190µV at 25°C.
Can LT6005HGN#PBF operate from a single 1.6V supply with rail-to-rail output swing?
Yes, the LT6005HGN#PBF delivers rail-to-rail output swing - within 100mV of V+ and 50mV of V– at no load - when operated from a single 1.6V supply. This is validated in the "Output Swing Low/High" specifications under VS = 1.8V (representative of 1.6V min) and confirmed in Typical Performance Characteristic plots G08/G09 at 1.6V-equivalent conditions.
Is the LT6005HGN#PBF pin-compatible with other packages in the LT6005 family?
No, the LT6005HGN#PBF in 16-lead SSOP (GN) is not pin-compatible with the LT6005HDHC#PBF in 16-lead DFN (DHC), despite identical pin count. Pin functions differ: GN places V– on pin 12 and NC on pins 8/16, while DHC assigns V– to pin 4 and uses pin 17 (exposed pad) for V– connection. Layout redesign is required when switching packages.
LT6005HGN#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:
- 12 nA
- 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 ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
LT6005HGN#PBF FAQ
1.How can I place an order for LT6005HGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6005HGN#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 LT6005HGN#PBF reliable?
The price and inventory of LT6005HGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6005HGN#PBF is usually 5 days.
3.What payment methods are accepted for LT6005HGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6005HGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6005HGN#PBF?
LT6005HGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6005HGN#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 LT6005HGN#PBF?
For technical support, including LT6005HGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6005HGN#PBF requirements.
6.How does Aetrix verify that LT6005HGN#PBF is sourced from the original manufacturer or authorized distributors?
All LT6005HGN#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 LT6005HGN#PBF meets industry standards.
7.What is the process for return or replacement of LT6005HGN#PBF?
All LT6005HGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6005HGN#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 LT6005HGN#PBF part is unused and in its original packaging.
Return procedure for LT6005HGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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