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Analog Devices Inc. LTC6087CMS8#PBF
- Part No.:
- LTC6087CMS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6087CMS8#PBF.pdf
- Description:
- IC CMOS 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:322
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Product details
Overview
LTC6087CMS8#PBF from Analog Devices is a dual, rail-to-rail input/output CMOS operational amplifier optimized for high-impedance sensor signal conditioning. It delivers 14MHz gain bandwidth, 7.2V/µs slew rate, 1pA typical input bias current at 25°C, 0.75mV max offset voltage, and operates from 2.7V to 5.5V supply - enabling precision amplification in portable medical sensors and low-power data acquisition systems.
For engineers reviewing the LTC6087CMS8#PBF datasheet, LTC6087CMS8#PBF pinout, LTC6087CMS8#PBF application, or LTC6087CMS8#PBF equivalent, key selection criteria include verified rail-to-rail I/O swing within 30mV of rails, shutdown current ≤2.3µA per amplifier, input noise density of 12nV/√Hz at 1kHz, and MS8 package thermal resistance (θJA = 200°C/W) for thermally constrained PCB layouts.
Technical Context
The LTC6087CMS8#PBF uses complementary PMOS/NMOS input stage architecture to achieve true rail-to-rail common-mode input range (V– to V+) and output swing to within 30mV of both supply rails under no-load conditions. Its unity-gain stable design supports direct use in transimpedance configurations without external compensation.
Internal ESD protection diodes on all pins define the 1pA input bias current as leakage across reverse-biased junctions, making performance highly dependent on board layout cleanliness and guard ring implementation - especially critical in pH probe or photodiode applications where source impedances exceed 100MΩ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 14MHz - enables stable closed-loop operation up to 1MHz with gain ≥14, suitable for anti-aliasing filters and active sensor front-ends. |
| Input Bias Current | 1pA (typ @ 25°C) - allows direct interfacing with >1GΩ source impedances without significant DC error. |
| Offset Voltage | ±750µV (max) - ensures ≤0.75mV DC error in single-supply 5V systems, critical for baseline-sensitive shock/vibration sensors. |
| Slew Rate | 7.2V/µs - supports 10kHz full-scale step response with <1% distortion in 2VPP audio or data acquisition paths. |
| Supply Voltage Range | 2.7V to 5.5V - compatible with Li-ion battery discharge profiles and industrial 3.3V/5V rails without level-shifting. |
| Shutdown Current | 2.3µA per amplifier - reduces system standby power by >99% versus active mode (1.05mA), enabling duty-cycled sensor nodes. |
| Input Noise Density | 12nV/√Hz @ 1kHz - dominates total noise only when source impedance ≤10kΩ; exceeds resistor-limited noise above that threshold. |
Pinout & Package
The LTC6087CMS8#PBF is housed in an 8-lead MSOP (MS8) package with exposed pad connected to V–. Thermal resistance θJA = 200°C/W requires careful copper pour design for continuous 1.05mA per amplifier operation at ambient >70°C.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output - rail-to-rail swing (V– +30mV to V+ –30mV) enables maximum dynamic range in low-voltage systems. |
| 2 | –INA | Inverting input - high-impedance node requiring guard ring routing to prevent board leakage (>100GΩ contamination adds >50pA error). |
| 3 | +INA | Noninverting input - same rail-to-rail common-mode range as –INA; used for unity-gain buffer configurations. |
| 4 | V– | Negative supply - internally connects to exposed pad; must be soldered to PCB ground plane for thermal and electrical integrity. |
| 5 | V+ | Positive supply - accepts 2.7V–5.5V; PSRR ≥93dB minimizes supply ripple coupling into output. |
| 6 | OUTB | Amplifier B output - independent channel with identical specs; enables dual-path signal conditioning without crosstalk (–120dB @ 10kHz). |
| 7 | –INB | Inverting input for amplifier B - electrically isolated from amplifier A inputs per datasheet channel separation spec. |
| 8 | +INB | Noninverting input for amplifier B - supports differential pair configurations with matched trace lengths to preserve CMRR ≥70dB. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode range spans V– to V+; output swings to within 30mV of either rail - maximizes usable signal headroom in 3V systems. |
| Ultra-low input bias | 1pA typical at 25°C - enables direct connection to piezoelectric shock sensors (e.g., Murata PKGS-00MX1) without loading-induced gain error. |
| Shutdown mode | 2.3µA per amplifier quiescent current - allows time-multiplexed sensor readout while maintaining µA-level system sleep current. |
| High PSRR/CMRR | 93dB PSRR and 70dB CMRR - rejects power supply noise and common-mode interference in noisy industrial environments. |
| Unity-gain stable | No external compensation required - simplifies layout for TIA and buffer applications while ensuring phase margin ≥45°. |
Applications
| Portable Medical Sensors | High-Impedance Transducer Amplifier |
|---|---|
Use Scenario: Amplifying microvolt-level EEG or ECG signals from dry electrodes in battery-powered handheld diagnostics. IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier front-end with matched gain paths and low-frequency noise optimization. Use Value: 12nV/√Hz input noise and 0.75mV offset ensure sub-µV resolution over 0.1–100Hz bandwidth without AC coupling or chopper stabilization. | Use Scenario: Conditioning output from Murata PKGS-00MX1 shock/vibration sensor (0.57pC/g, 520pF) in structural health monitoring. IC Role / Device Role / Timing Role: Single-supply transimpedance amplifier converting charge output to 570mV/g analog voltage with 16Hz–10kHz flat response. Use Value: 1pA input bias prevents signal decay in high-Z sensor node; rail-to-rail output delivers full 2.7–5.5V dynamic range to ADC input. |
| Audio Line Driver | Data Acquisition Front-End |
Use Scenario: Driving 600Ω professional audio lines from 3.3V microcontroller DAC outputs in portable mixers. IC Role / Device Role / Timing Role: Unity-gain buffer isolating DAC from cable capacitance while maintaining THD+N <0.01% at 1kHz. Use Value: 7.2V/µs slew rate supports 2VPP signals up to 10kHz without slew-induced distortion; 14MHz GBW ensures stability with 100pF load. | Use Scenario: Multiplexed analog front-end for 16-bit SAR ADC sampling thermocouples, RTDs, and strain gauges in industrial PLC modules. IC Role / Device Role / Timing Role: Precision gain stage with programmable offset correction and channel isolation for simultaneous multi-sensor measurement. Use Value: Dual amplifiers enable correlated double sampling; 70dB CMRR rejects 50/60Hz pickup in unshielded industrial wiring environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6078CMS8#PBF | Lower supply current (60µA vs 1.05mA), higher offset (25µV max), same 1pA IB and rail-to-rail I/O. | Optimized for micropower (<10µA sleep) rather than speed; unsuitable for >100kHz signal chains. | Select when battery life >1 year is required and bandwidth <200kHz suffices. |
| LTC6241IMS8#PBF | Higher speed (18MHz GBW), lower noise (7nV/√Hz), 0.2pA IB, but no shutdown mode and 3.3V min supply. | Targets low-noise, high-speed data acquisition; lacks shutdown for power-gated sensor nodes. | Select when noise performance is critical and system operates exclusively from ≥3.3V rails. |
Compared with LTC6078CMS8#PBF and LTC6241IMS8#PBF, the LTC6087CMS8#PBF uniquely balances 14MHz bandwidth, 1pA bias, shutdown capability, and 2.7V operation - making it the only option for battery-powered, wideband, high-impedance sensor interfaces requiring active power management.
Availability
LTC6087CMS8#PBF is available at Aetrix Electronics and suitable for portable medical sensors, high-impedance transducer amplifiers, and audio line drivers requiring stable component supply across automotive, industrial, and consumer production programs.
Supply support for LTC6087CMS8#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC6087 series belongs to Analog Devices' precision rail-to-rail op amp product line, engineered specifically for low-power, high-impedance sensor signal conditioning in battery-operated and thermally constrained systems.
FAQ
What is the maximum operating temperature range for the LTC6087CMS8#PBF?
The LTC6087CMS8#PBF is rated for operation from –40°C to 85°C (C-grade). Its absolute maximum junction temperature is 150°C, and thermal resistance θJA is 200°C/W in the MS8 package - requiring adequate PCB copper area for sustained 1.05mA per amplifier operation above 70°C ambient.
Does the LTC6087CMS8#PBF support shutdown functionality?
No, the LTC6087CMS8#PBF does not include shutdown pins. Shutdown is only available on the DFN10 variant (LTC6087CDD#PBF) via SHDNA/SHDNB pins. The MS8 package omits these pins entirely, so the LTC6087CMS8#PBF operates continuously when powered.
What is the input common-mode voltage range of the LTC6087CMS8#PBF?
The LTC6087CMS8#PBF features true rail-to-rail input stage with common-mode range extending from V– to V+. This is achieved using complementary PMOS/NMOS differential pairs, enabling accurate amplification of signals near either supply rail - essential for single-supply sensor interfaces.
How does the LTC6087CMS8#PBF perform in transimpedance amplifier configurations?
The LTC6087CMS8#PBF is well-suited for transimpedance amplifiers due to its 1pA input bias current, unity-gain stability, and low input capacitance (2.7pF differential). When paired with feedback resistors ≤10MΩ, its 12nV/√Hz noise dominates only if source impedance remains below 10kΩ - verified in typical photodiode TIA applications.
Can the LTC6087CMS8#PBF drive capacitive loads reliably?
Yes, the LTC6087CMS8#PBF can drive up to 100pF capacitive load in unity-gain configuration without oscillation, as confirmed by overshoot vs. capacitive load curves. For loads >100pF, adding a small series resistor (10–50Ω) between output and load restores stability while preserving bandwidth.
LTC6087CMS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- 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 ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC6087CMS8#PBF FAQ
1.How can I place an order for LTC6087CMS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6087CMS8#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 LTC6087CMS8#PBF reliable?
The price and inventory of LTC6087CMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6087CMS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC6087CMS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6087CMS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6087CMS8#PBF?
LTC6087CMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6087CMS8#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 LTC6087CMS8#PBF?
For technical support, including LTC6087CMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6087CMS8#PBF requirements.
6.How does Aetrix verify that LTC6087CMS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6087CMS8#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 LTC6087CMS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC6087CMS8#PBF?
All LTC6087CMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6087CMS8#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 LTC6087CMS8#PBF part is unused and in its original packaging.
Return procedure for LTC6087CMS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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