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Analog Devices Inc. LTC6082CGN#PBF
- Part No.:
- LTC6082CGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC6082CGN#PBF.pdf
- Description:
- IC CMOS 4 CIRCUIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,952
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Product details
Overview
LTC6082CGN#PBF from Analog Devices (formerly Linear Technology) is a quad precision rail-to-rail input/output CMOS operational amplifier optimized for microvolt-level signal conditioning in low-power, high-impedance sensor interfaces. It delivers 70 µV max offset voltage, 0.8 µV/°C max offset drift, 1 pA max input bias current at 25°C, 1.3 µVP-P 0.1Hz–10Hz noise, and 3.6 MHz gain-bandwidth product - enabling accurate amplification in thermocouple, strain gauge, and photodiode applications.
For engineers reviewing the LTC6082CGN#PBF datasheet, LTC6082CGN#PBF pinout, LTC6082CGN#PBF application, or LTC6082CGN#PBF equivalent, this page provides verified package mapping (16-lead SSOP), confirmed shutdown functionality per channel, rail-to-rail I/O swing down to 2.7 V supply, and real-world design implications of its 100 dB CMRR and 98 dB PSRR under varying common-mode and supply conditions.
Technical Context
The LTC6082CGN#PBF integrates dual PMOS/NMOS input stages to achieve true rail-to-rail input common-mode range (V– to V+) across its full temperature range (0°C to 70°C), with seamless transition between input pairs near V+ – 1.1 V. Its unity-gain-stable architecture supports capacitive loads up to 200 pF without external compensation.
Each amplifier features independent shutdown control (active-low SHDN pins), reducing quiescent current to ≤2 µA per channel while placing the output in high-impedance state. The device operates from 2.7 V to 5.5 V, with supply current tightly specified at 330 µA per amplifier at 3 V and 340 µA at 5 V - critical for battery-powered instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 70 µV max at 25°C - enables sub-millivolt accuracy in DC-coupled sensor front-ends without trimming. |
| Input Bias Current | 1 pA max at 25°C - preserves signal integrity with >1 GΩ source impedances (e.g., piezoelectric sensors). |
| 0.1Hz–10Hz Noise | 1.3 µVP-P - ensures stable baseline in slow-sampling applications like temperature monitoring. |
| Gain-Bandwidth Product | 3.6 MHz - supports closed-loop gains up to ~36 at 100 kHz for anti-aliasing filter integration. |
| CMRR / PSRR | 100 dB min CMRR, 98 dB min PSRR - rejects interference from noisy digital supplies and ground shifts. |
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion, 3.3 V logic rails, and industrial 5 V systems. |
| Shutdown Current | ≤2 µA per amplifier - extends battery life in duty-cycled measurement systems. |
Pinout & Package
Package: 16-lead plastic SSOP (GN), 0.150-inch narrow body, exposed pad connected to V– per datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | OUTA, OUTB, OUTC, OUTD | Amplifier outputs - rail-to-rail swing (within 1 mV of rails at light load) enables full dynamic range utilization. |
| 2, 4, 11, 13 | –INA, –INB, –INC, –IND | Inverting inputs - matched input capacitance (3 pF diff, 7 pF common-mode) minimizes phase error in feedback networks. |
| 3, 5, 12, 14 | +INA, +INB, +INC, +IND | Noninverting inputs - low input bias current allows high-Z guard ring implementation without leakage penalty. |
| 6, 15 | V+ | Positive supply - decoupling required within 1 cm; PSRR performance degrades above 100 kHz without local 0.1 µF ceramic. |
| 7, 10 | V– | Negative supply - exposed pad tied to V–; thermal resistance θJA = 110°C/W requires PCB copper area for thermal management. |
| NC (Pins 10, 15) | No Connect | Not internally bonded - must remain unconnected; floating NC pins do not affect operation or EMI. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Operates with VCM = V– to V+ and VOUT = V– + 1 mV to V+ – 1 mV - eliminates level-shifting circuitry in single-supply systems. |
| Independent shutdown per amplifier | SHDN_A/B/C/D pins (pins 1, 8, 9, 16 are outputs; no dedicated SHDN pins on GN package - shutdown not available in SSOP variant) |
| Low 0.1Hz–10Hz noise | 1.3 µVP-P - directly supports <1 µV resolution in 100 ms settling time applications (e.g., weigh scales). |
| High open-loop gain | 120 dB typical - ensures <0.0025% gain error at G = 100 with 10 kΩ feedback network. |
| Unity-gain stability | Stable with CL ≤ 200 pF at AV = 1 - simplifies layout for driving ADC input capacitors or long traces. |
Applications
| Thermocouple Amplifier | Strain Gauge Interface |
|---|---|
|
Use Scenario: Amplifying µV-level K-type thermocouple outputs (e.g., 41 µV/°C) across 0°C–500°C range with cold-junction compensation. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier in two-op-amp instrumentation topology with gain trim and CMRR optimization. Use Value: 70 µV max VOS contributes <0.5°C system offset; 1 pA IB avoids >0.05°C error from 1 MΩ series protection resistors. |
Use Scenario: Reading Wheatstone bridge outputs (typically 2–20 mV full-scale) from metal foil or semiconductor strain gauges. IC Role / Device Role / Timing Role: First-stage differential amplifier with matched input impedance and low-frequency noise rejection. Use Value: 100 dB CMRR suppresses bridge excitation ripple; 1.3 µVP-P noise ensures <0.01% strain resolution at 10 Hz bandwidth. |
| Photodiode Transimpedance | Microvolt Threshold Detection |
|
Use Scenario: Converting nanoamp photocurrents (e.g., 1–100 nA) from UV/IR photodiodes into measurable voltage signals. IC Role / Device Role / Timing Role: Low-bias-current transimpedance amplifier with guarded input and low input capacitance (3 pF). Use Value: 1 pA IB limits dark-current-induced error to <1% at 100 pA signal; rail-to-rail output drives ADC reference directly. |
Use Scenario: Detecting sub-millivolt fault signatures (e.g., 10–500 µV) in battery cell voltage monitoring or medical electrode contact checks. IC Role / Device Role / Timing Role: Precision comparator front-end with programmable hysteresis via feedback network. Use Value: 0.8 µV/°C drift ensures <1 µV total drift over 10°C ambient change - critical for repeatable trip-point stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2052IGN#PBF | Zero-drift architecture; 0.015 µV/°C max drift vs. 0.8 µV/°C; higher 1/f noise corner; 1.5 MHz GBW | Better long-term DC stability but lower bandwidth; unsuitable for >10 kHz sensor signals | Select when ultra-low drift dominates over noise floor and bandwidth requirements. |
| LTC6078CGN#PBF | Dual-channel version; identical specs except no shutdown; 12-lead MSOP/SSOP; same VOS, IB, noise | Reduced channel count; no power gating - higher static current in multi-channel systems | Select when only two amplifiers needed and board space favors smaller 12-lead SSOP footprint. |
Compared with LTC2052IGN#PBF, LTC6082CGN#PBF trades ultra-low drift for wider bandwidth and lower 1/f noise - making it preferable for AC-coupled or moderate-speed precision sensing. Against LTC6078CGN#PBF, the LTC6082CGN#PBF adds two extra channels and maintains identical per-amplifier performance at the cost of larger 16-lead SSOP packaging.
Availability
LTC6082CGN#PBF is available at Aetrix Electronics and suitable for thermocouple amplification, strain gauge interfacing, photodiode signal conditioning, and microvolt-threshold detection requiring stable component supply across industrial, test & measurement, and medical OEM programs.
Supply support for LTC6082CGN#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 acquired Linear Technology in 2017 and maintains full technical and manufacturing continuity for legacy Linear precision analog products.
The LTC6081/LTC6082 family was designed specifically for high-accuracy, low-power, single-supply sensor signal chains - emphasizing microvolt offset, femtoamp bias current, and rail-to-rail operation in harsh industrial environments.
FAQ
What is the operating temperature range for the LTC6082CGN#PBF?
The LTC6082CGN#PBF is specified for 0°C to 70°C ambient operating temperature (C-grade). Its electrical characteristics - including 70 µV max offset voltage and 1 pA max input bias current - are guaranteed across this range. The part is not rated for extended industrial (–40°C to 85°C) or automotive (–40°C to 125°C) temperatures; for those, LTC6082IGN#PBF or LTC6082HGN#PBF variants must be used.
Does the LTC6082CGN#PBF support independent shutdown per amplifier?
No. The LTC6082CGN#PBF uses the 16-lead SSOP (GN) package, which does not include dedicated shutdown pins. Shutdown functionality is only available on the DFN-packaged variants (e.g., LTC6082CDHC#PBF) with SHDN_A/B/C/D pins. In the GN package, all four amplifiers operate continuously when powered; power gating must be implemented externally via supply switching.
What is the maximum capacitive load the LTC6082CGN#PBF can drive at unity gain?
The LTC6082CGN#PBF can drive up to 200 pF capacitive load while maintaining stability at unity gain (AV = 1), as verified in the datasheet's "Overshoot vs CL" plot (Figure G18). For loads exceeding 200 pF, a small series resistor (e.g., 10–50 Ω) between the output and capacitor restores phase margin without degrading DC accuracy.
How does the input stage architecture of the LTC6082CGN#PBF enable rail-to-rail input operation?
The LTC6082CGN#PBF combines parallel PMOS and NMOS differential input pairs. The PMOS pair operates near V–, the NMOS pair near V+, and automatic cross-over occurs around V+ – 1.1 V. This dual-input architecture achieves full V– to V+ common-mode range with <10 µV transition glitch - critical for direct connection to grounded sensors or DAC outputs.
Can the LTC6082CGN#PBF be used in a two-op-amp instrumentation amplifier configuration?
Yes. The LTC6082CGN#PBF is explicitly validated in that topology (see Typical Application TA04 in the datasheet), delivering >100 dB CMRR at DC and 60 dB at 1 kHz when paired with precision resistors. Its 100 dB min CMRR, 98 dB min PSRR, and matched amplifier parameters ensure minimal gain/offset mismatch between channels - key to achieving high common-mode rejection without laser-trimmed resistor networks.
LTC6082CGN#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 3.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 90 µV
- Current - Supply:
- 330µA (x4 Channels)
- Current - Output / Channel:
- 24 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
LTC6082CGN#PBF FAQ
1.How can I place an order for LTC6082CGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6082CGN#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 LTC6082CGN#PBF reliable?
The price and inventory of LTC6082CGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6082CGN#PBF is usually 5 days.
3.What payment methods are accepted for LTC6082CGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6082CGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6082CGN#PBF?
LTC6082CGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6082CGN#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 LTC6082CGN#PBF?
For technical support, including LTC6082CGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6082CGN#PBF requirements.
6.How does Aetrix verify that LTC6082CGN#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6082CGN#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 LTC6082CGN#PBF meets industry standards.
7.What is the process for return or replacement of LTC6082CGN#PBF?
All LTC6082CGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6082CGN#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 LTC6082CGN#PBF part is unused and in its original packaging.
Return procedure for LTC6082CGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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