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Analog Devices Inc. LTC6087HDD#PBF
- Part No.:
- LTC6087HDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LTC6087HDD#PBF.pdf
- Description:
- IC CMOS 2 CIRCUIT 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:288
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Product details
Overview
LTC6087HDD#PBF from Analog Devices (formerly Linear Technology) is a dual, rail-to-rail input/output, low-noise CMOS operational amplifier optimized for high-impedance sensor signal conditioning. It delivers 14MHz gain bandwidth, 7.2V/µs slew rate, 12nV/√Hz input voltage noise at 1kHz, 750µV max offset voltage over –40°C to 125°C, and 1pA typical input bias current at 25°C - enabling precision amplification in portable medical devices, shock/vibration sensors, and data acquisition systems.
For engineers reviewing the LTC6087HDD#PBF datasheet, LTC6087HDD#PBF pinout, LTC6087HDD#PBF application, or LTC6087HDD#PBF equivalent, key selection criteria include guaranteed H-grade temperature operation (–40°C to 125°C), shutdown functionality with 2.3µA per amplifier quiescent current, DFN-10 package thermal performance (θJA = 43°C/W), and verified rail-to-rail swing within 30mV of supply rails under no-load conditions.
Technical Context
The LTC6087HDD#PBF employs complementary PMOS/NMOS input stages to achieve true rail-to-rail common-mode input range (V– to V+), with seamless transition between transistor pairs near 0.9V–1.3V below V+. Its unity-gain stable architecture supports capacitive loads up to 100pF without external compensation, and its class AB output stage delivers ±45mA short-circuit current while maintaining 30mV rail proximity at high-Z loads.
Shutdown control is implemented via two dedicated active-low pins (SHDNA, SHDNB) that place each amplifier into high-impedance output state and reduce supply current to ≤5µA per channel. The exposed pad (Pin 11) is internally connected to V– and must be soldered to PCB ground plane for optimal thermal and electrical performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 14MHz - enables stable closed-loop operation up to ~1MHz at gain ≥10 without phase margin degradation. |
| Input Bias Current | 1pA (typ @ 25°C), 500pA (max @ 125°C) - preserves signal integrity in >10GΩ source impedance applications like pH probes and piezoelectric sensors. |
| Offset Voltage | ±750µV (max over –40°C to 125°C) - ensures DC accuracy in precision instrumentation without trimming. |
| Slew Rate | 7.2V/µs - supports 1VP-P signals up to ~1.1MHz before slew-induced distortion dominates. |
| Supply Voltage Range | 2.7V to 5.5V - compatible with single-cell Li-ion, 3.3V logic, and industrial 5V rails without level-shifting. |
| Shutdown Current | 2.3µA per amplifier - reduces system power by >99% during idle cycles in battery-powered equipment. |
| CMRR / PSRR | 70dB / 93dB (min) - rejects supply ripple and common-mode interference in noisy embedded environments. |
Pinout & Package
The LTC6087HDD#PBF is housed in a 10-lead (3mm × 3mm) plastic DFN package with exposed thermal pad (Pin 11) connected to V–. This leadless package offers θJA = 43°C/W and requires soldering the exposed pad to PCB ground for thermal management and noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive Supply | Accepts 2.7V–5.5V; decoupling capacitor required within 1cm for stability. |
| V– | Negative Supply | Ground reference; connected internally to exposed pad (Pin 11). |
| +INA, –INA | Noninverting/Inverting Input A | Rail-to-rail input stage accepts signals from V– to V+; guard ring recommended for >1GΩ sources. |
| +INB, –INB | Noninverting/Inverting Input B | Independent second channel; identical specs and layout rules as Channel A. |
| OUTA, OUTB | Amplifier Outputs | Rail-to-rail swing (≤30mV from rails); high-Z in shutdown mode. |
| SHDNA, SHDNB | Active-Low Shutdown Controls | Pull ≤0.8V to disable respective amplifier; floating pins default to active (internal pull-up to V+). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O with full supply common-mode range | Enables direct interfacing with ADCs and DACs operating at same supply without level shifters. |
| 1pA input bias current (25°C) | Minimizes voltage error in ultra-high-impedance transducer interfaces (e.g., 100MΩ strain gauges). |
| 14MHz GBW with unity-gain stability | Supports wideband filtering and fast-settling data acquisition without external compensation. |
| 2.3µA shutdown current per amplifier | Extends battery life in intermittent-sampling systems such as portable diagnostic tools. |
| Specified over –40°C to 125°C (H-grade) | Validates performance in automotive engine compartments and industrial motor drives. |
Applications
| Shock/Vibration Sensor Amplifier | Portable Medical Instrumentation |
|---|---|
Use Scenario: Amplifying low-level charge output (0.57pC/g) from Murata PKGS-00MX1 piezoelectric shock sensor across 16Hz–10kHz bandwidth. IC Role / Device Role / Timing Role: First-stage transimpedance amplifier with 100kΩ feedback resistor, providing 570mV/g sensitivity and rail-to-rail output swing on 2.7V–5.5V supply. Use Value: 12nV/√Hz input noise and 1pA bias current preserve SNR in micro-g resolution measurements without external guarding. | Use Scenario: Front-end amplification of ECG electrode signals in handheld cardiac monitors with battery-only operation. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier driver with programmable gain and shutdown between patient leads. Use Value: 750µV max offset and 5µV/°C drift ensure baseline stability across body-temperature variations; 1.05mA/quiescent current extends runtime. |
| High-Impedance pH Probe Interface | Low-Power Data Acquisition System |
Use Scenario: Buffering glass electrode outputs (>1GΩ source impedance) in portable water quality analyzers. IC Role / Device Role / Timing Role: Unity-gain buffer with guard ring layout, rejecting leakage paths induced by PCB contamination or humidity. Use Value: 1pA input bias current prevents >10mV DC error at 10GΩ source; rail-to-rail input accommodates full ±414mV Nernst potential range. | Use Scenario: Signal conditioning for multi-channel thermocouple and RTD inputs in industrial edge controllers. IC Role / Device Role / Timing Role: Precision gain stage preceding SAR ADC, with channel shutdown synchronized to multiplexer switching. Use Value: 14MHz GBW allows anti-aliasing filter design with <10ns group delay variation; 70dB CMRR suppresses common-mode noise from shared ground returns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6078HDD#PBF | Lower supply current (600µA vs 1.05mA), higher offset (25µV max), same 1pA bias current and rail-to-rail I/O. | Better suited for always-on ultra-low-power nodes; less suitable for wideband signal chains requiring >10MHz GBW. | Select LTC6078HDD#PBF when power budget <700µA/channel is critical and bandwidth ≤1.5MHz suffices. |
| LTC6242HDD#PBF | Higher GBW (18MHz), lower noise (7nV/√Hz), lower bias current (0.2pA), but no shutdown function and 125°C rating only for C-grade (not H-grade). | Superior for high-fidelity audio or fast data acquisition; lacks guaranteed 125°C operation and power gating capability. | Select LTC6242HDD#PBF when noise and speed dominate, and thermal derating or shutdown is not required. |
Compared with LTC6078HDD#PBF and LTC6242HDD#PBF, the LTC6087HDD#PBF uniquely balances wideband precision (14MHz, 12nV/√Hz), robust H-grade temperature support (–40°C to 125°C), and integrated shutdown - making it optimal for battery-powered industrial sensors needing both performance and power control.
Availability
LTC6087HDD#PBF is available at Aetrix Electronics and suitable for portable test equipment, medical diagnostics, and industrial condition monitoring requiring stable component supply across extended temperature ranges.
Supply support for LTC6087HDD#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC6087 product line was designed specifically for precision, low-power, rail-to-rail signal conditioning in harsh-environment applications - emphasizing low input bias current, wide temperature operation, and robust noise immunity.
FAQ
What is the maximum operating temperature specification for LTC6087HDD#PBF?
The LTC6087HDD#PBF is rated for continuous operation from –40°C to 125°C, with all electrical parameters guaranteed across this full industrial-plus temperature range. This H-grade qualification distinguishes it from the C-grade variant (0°C to 70°C) and validates use in under-hood automotive or high-ambient industrial settings where thermal stress is critical.
Does LTC6087HDD#PBF support rail-to-rail input and output simultaneously?
Yes, the LTC6087HDD#PBF supports true rail-to-rail input (common-mode range from V– to V+) and rail-to-rail output (swing within 30mV of V– or V+ under no-load conditions). This dual rail-to-rail capability eliminates level-shifting requirements when interfacing with modern low-voltage ADCs and DACs powered from the same supply.
How does the shutdown feature work on LTC6087HDD#PBF?
The LTC6087HDD#PBF implements independent active-low shutdown via SHDNA (Pin 5) and SHDNB (Pin 6). Driving either pin ≤0.8V disables the corresponding amplifier, placing its output in high-impedance state and reducing quiescent current to ≤5µA per channel. Floating pins default to active due to internal V+ pull-ups - no external resistors needed.
What package type and thermal characteristics apply to LTC6087HDD#PBF?
The LTC6087HDD#PBF uses a 10-lead (3mm × 3mm) plastic DFN package with exposed thermal pad (Pin 11) tied internally to V–. Its thermal resistance is θJA = 43°C/W when properly soldered to a 1-in² copper pour, enabling reliable operation at full load even at 125°C ambient - critical for compact, sealed enclosures.
Is LTC6087HDD#PBF suitable for photodiode transimpedance applications?
Yes, the LTC6087HDD#PBF is well-suited for photodiode TIA designs due to its 1pA input bias current (minimizing dark-current error), 12nV/√Hz input voltage noise (dominant at >1kHz), and unity-gain stability with up to 100pF capacitive load. Layout best practices - including guard rings and minimized input trace length - are essential to preserve these advantages in high-gain configurations.
LTC6087HDD#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 7.2V/µs
- Gain Bandwidth Product:
- 14 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 330 µV
- Current - Supply:
- 1.05mA (x2 Channels)
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
LTC6087HDD#PBF FAQ
1.How can I place an order for LTC6087HDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6087HDD#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 LTC6087HDD#PBF reliable?
The price and inventory of LTC6087HDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6087HDD#PBF is usually 5 days.
3.What payment methods are accepted for LTC6087HDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6087HDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6087HDD#PBF?
LTC6087HDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6087HDD#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 LTC6087HDD#PBF?
For technical support, including LTC6087HDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6087HDD#PBF requirements.
6.How does Aetrix verify that LTC6087HDD#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6087HDD#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 LTC6087HDD#PBF meets industry standards.
7.What is the process for return or replacement of LTC6087HDD#PBF?
All LTC6087HDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6087HDD#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 LTC6087HDD#PBF part is unused and in its original packaging.
Return procedure for LTC6087HDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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