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Analog Devices Inc. LT6005CGN#PBF
- Part No.:
- LT6005CGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LT6005CGN#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,090
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Product details
Overview
LT6005CGN#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 650µV max input offset voltage (0°C–70°C), 90pA max input bias current, and drives 500pF capacitive loads - enabling high-accuracy signal conditioning in battery-powered gas monitors and solar-powered sensor nodes.
For engineers reviewing the LT6005CGN#PBF datasheet, LT6005CGN#PBF pinout, LT6005CGN#PBF application, or LT6005CGN#PBF equivalent, key selection criteria include guaranteed 0°C to 70°C operation, SSOP-16 package compatibility with space-constrained PCBs, rail-to-rail swing within 100mV of rails, and verified performance on 1.8V/5V/±8V supplies without external compensation.
Technical Context
The LT6005CGN#PBF implements 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 (0V to V+). Input offset voltage is trimmed independently 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 stable rail-to-rail output swing while maintaining 100,000 min open-loop gain into 20kΩ and 2kHz gain-bandwidth product - all with <1.6µA quiescent current per amplifier at 5V, making it suitable for always-on, ultra-low-power sensing front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 16V - supports single-cell Li-ion, two-cell alkaline, and split ±8V supplies without level-shifting. |
| Quiescent Current | ≤1.6µA per amplifier at 5V - enables multi-year battery life in intermittent-sampling sensor nodes. |
| Input Offset Voltage | 650µV max (0°C to 70°C) - ensures sub-mV DC accuracy in 12-bit ADC front-ends without trimming. |
| Input Bias Current | 90pA max - allows use with >10MΩ source impedances (e.g., electrochemical sensors) without significant error. |
| Capacitive Load Drive | 500pF - eliminates need for isolation resistors when driving ADC input filters or long traces. |
| CMRR / PSRR | 100dB / 95dB - rejects supply noise and common-mode interference in noisy industrial environments. |
| Output Swing | Within 100mV of V+ and 50mV of V– (no load) - maximizes dynamic range in 1.8V/3.3V systems. |
Pinout & Package
LT6005CGN#PBF is housed in a 16-lead plastic SSOP (GN) package with exposed pad not connected internally; standard JEDEC MS-013AC footprint (5.3mm × 5.3mm, 0.635mm pitch).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Rail-to-rail sourcing/sinking output capable of driving 500pF directly. |
| 2 (–IN A) | Inverting input A | Differential input node with 90pA max bias current; requires matched impedance for offset minimization. |
| 3 (+IN A) | Non-inverting input A | True rail-to-rail input (0V to V+) enabled by dual PNP/NPN input stage. |
| 4 (V+) | Positive supply | Accepts 1.6V–16V; bypass with 0.01µF ceramic capacitor within 25mm of pin. |
| 5 (+IN B) | Non-inverting input B | Independent input for second amplifier; same rail-to-rail and low-bias characteristics as Pin 3. |
| 6 (–IN B) | Inverting input B | Matches Pin 2 electrical behavior; supports differential configurations with matched layout. |
| 7 (OUT B) | Amplifier B output | Electrically identical to Pin 1; shares no internal coupling with other amplifiers. |
| 8 (NC) | No connect | Internal die pad; must remain unconnected per manufacturer specification. |
| 9 (OUT D) | Amplifier D output | Fourth independent output; fully specified across temperature and supply conditions. |
| 10 (–IN D) | Inverting input D | Valid for full common-mode range; bias current increases near rails but remains <1nA. |
| 11 (+IN D) | Non-inverting input D | Enables simultaneous four-channel signal conditioning with matched DC specs. |
| 12 (V–) | Negative supply | Ground reference in single-supply mode; supports negative voltages down to –8V in split-supply configs. |
| 13 (+IN C) | Non-inverting input C | Third amplifier input; identical AC/DC performance to Pins 3 and 5. |
| 14 (–IN C) | Inverting input C | Supports high-impedance transducer interfaces with <90pA bias current. |
| 15 (OUT C) | Amplifier C output | Provides fourth buffered channel; maintains 100,000 min AVOL into 20kΩ load. |
| 16 (NC) | No connect | Unused bond pad; leave floating or tie to ground only if required by board EMI strategy. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal utilization in 1.8V systems - e.g., 0–1.8V sensor output digitized by 12-bit ADC without level-shifting. |
| 1.6V minimum supply voltage | Permits direct operation from single alkaline or NiMH cells, eliminating boost converters and associated EMI/noise. |
| 500pF capacitive load drive | Allows direct connection to ADC input RC filters (e.g., 10kΩ + 100nF) without stability-compromising series resistors. |
| 2µV/°C max input offset drift | Ensures <1.4mV total offset variation over 0°C–70°C - critical for unattended environmental monitoring over seasons. |
| 100dB CMRR at 1.8V | Maintains accuracy in battery-powered medical devices where ECG/EEG electrodes share noisy return paths. |
Applications
| Portable Gas Monitors | Battery-Powered Sensor Nodes |
|---|---|
Use Scenario: Detecting trace O₂ or CO concentrations using electrochemical cells with nA-level output currents. IC Role / Device Role / Timing Role: Precision transimpedance amplifier converting sensor current to voltage with minimal power overhead. Use Value: 90pA input bias current prevents loading of high-impedance gas cell; 1.6µA quiescent current extends AA battery life to >5 years in sleep-wake cycles. | Use Scenario: Environmental data logging (temp/humidity/pressure) in remote agricultural or infrastructure sites. IC Role / Device Role / Timing Role: Signal conditioner for analog sensor outputs prior to SAR ADC sampling. Use Value: Rail-to-rail I/O preserves full 1.8V ADC range; 650µV offset ensures ±0.5°C temperature accuracy without calibration. |
| Low-Voltage Active Filters | Micropower Reference Buffers |
Use Scenario: Anti-aliasing or noise-reduction filtering in energy-harvesting systems powered by solar cells or piezoelectrics. IC Role / Device Role / Timing Role: Unity-gain Sallen-Key filter stage with stable phase margin into 500pF loads. Use Value: 2kHz GBW and 500pF drive capability enable 100Hz cutoff filters without external isolation components. | Use Scenario: Buffering precision voltage references (e.g., LT6654) for multiple ADCs or DACs in portable instrumentation. IC Role / Device Role / Timing Role: Low-drift, low-noise unity-gain buffer isolating reference from load variations. Use Value: 2µV/°C drift adds <0.14mV error over 0°C–70°C - preserving 16-bit reference integrity without trimming. |
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 |
|---|---|---|---|
| TLV2464IDR | Higher 550µA/quiescent current; 3.5mV max VOS at 25°C; SOIC-14 package (14-pin, no V– pin 12) | Not suitable for multi-year battery life; requires higher supply headroom (2.7V min) | Select only when higher speed (6.4MHz GBW) or rail-to-rail output (but not input) is prioritized over power. |
| OP482ARUZ | 250µA IQ; 150µV max VOS; 8MHz GBW; TSSOP-16 package; no 1.6V operation guarantee | Designed for precision instrumentation, not ultra-low-power; lacks 1.6V start-up capability | Prefer when sub-100µV offset and faster settling are mandatory, and supply is ≥2.7V with adequate thermal margin. |
Compared with TLV2464IDR and OP482ARUZ, the LT6005CGN#PBF uniquely delivers sub-2µA quiescent current with rail-to-rail input/output and 1.6V operation - making it the only viable choice for decade-long deployments in energy-constrained edge sensors.
Availability
LT6005CGN#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 commercial temperature grades.
Supply support for LT6005CGN#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 engineered specifically for micropower, low-voltage precision signal conditioning in portable and energy-harvesting applications - emphasizing ultra-low IQ, rail-to-rail operation, and robustness across wide supply and temperature ranges.
FAQ
What is the maximum capacitive load the LT6005CGN#PBF can drive without external compensation?
The LT6005CGN#PBF is characterized to drive up to 500pF capacitive loads stably in unity-gain configuration, as confirmed in the datasheet's "Capacitive Load Handling" plot (Figure G22). This eliminates the need for series isolation resistors when interfacing with ADC input filters or long PCB traces, provided the load is purely capacitive and no additional inductive reactance is present.
Does the LT6005CGN#PBF support true rail-to-rail input operation across its full supply range?
Yes, the LT6005CGN#PBF supports rail-to-rail input from V– to V+ across its entire 1.6V–16V supply range, achieved via dual PNP/NPN input stages that auto-switch based on common-mode voltage. The input offset voltage shift over this range is limited to ≤1.15mV (max) for the LT6005CGN#PBF grade, ensuring consistent DC accuracy without external clamping or level-shifting circuitry.
What is the guaranteed operating temperature range for the LT6005CGN#PBF?
The LT6005CGN#PBF is specified for commercial-grade operation from 0°C to 70°C, with functional operation guaranteed from –40°C to 85°C. Its electrical parameters - including input offset voltage (650µV max), supply current (≤1.6µA), and CMRR (100dB) - are tested and guaranteed only over the 0°C to 70°C range per the order information table in the datasheet.
Can the LT6005CGN#PBF be used with a single 1.8V supply in sensor front-end applications?
Yes, the LT6005CGN#PBF is fully specified and guaranteed at 1.8V supply, drawing ≤1.4µA per amplifier at 0°C–70°C. Its rail-to-rail input/output, 650µV max offset, and 90pA input bias current make it ideal for 1.8V sensor signal chains - such as buffering thermistor or photodiode outputs prior to 12-bit ADC conversion without gain or level-shifting stages.
How does the LT6005CGN#PBF handle input overvoltage conditions beyond the supply rails?
The LT6005CGN#PBF incorporates 600kΩ series input resistors and phase-reversal protection, allowing inputs to be driven up to 9V below V– without damage. Input current is limited to <10mA when driven above V+, preventing latch-up. However, sustained overvoltage beyond Absolute Maximum Ratings (e.g., >18V total supply or >9V below V–) may cause permanent damage and is outside guaranteed operation.
LT6005CGN#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:
- 0°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
LT6005CGN#PBF FAQ
1.How can I place an order for LT6005CGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6005CGN#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 LT6005CGN#PBF reliable?
The price and inventory of LT6005CGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6005CGN#PBF is usually 5 days.
3.What payment methods are accepted for LT6005CGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6005CGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6005CGN#PBF?
LT6005CGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6005CGN#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 LT6005CGN#PBF?
For technical support, including LT6005CGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6005CGN#PBF requirements.
6.How does Aetrix verify that LT6005CGN#PBF is sourced from the original manufacturer or authorized distributors?
All LT6005CGN#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 LT6005CGN#PBF meets industry standards.
7.What is the process for return or replacement of LT6005CGN#PBF?
All LT6005CGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6005CGN#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 LT6005CGN#PBF part is unused and in its original packaging.
Return procedure for LT6005CGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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