My Inquiry
My Account
Analog Devices Inc. LTC6084CMS8#PBF
- Part No.:
- LTC6084CMS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6084CMS8#PBF.pdf
- Description:
- IC CMOS 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:571
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC6084CMS8#PBF from Analog Devices (formerly Linear Technology) is a dual, rail-to-rail input/output, unity-gain stable CMOS operational amplifier optimized for low-power, precision signal conditioning. It delivers 1.5MHz gain bandwidth, 0.5V/μs slew rate, 750μV max offset voltage, 110μA per amplifier supply current, and operates from 2.5V to 5.5V - making it ideal for portable medical sensors and battery-powered data acquisition systems.
For engineers reviewing the LTC6084CMS8#PBF datasheet, LTC6084CMS8#PBF pinout, LTC6084CMS8#PBF application, or LTC6084CMS8#PBF equivalent, key selection criteria include its 1pA typical input bias current at 25°C, shutdown mode reducing current to 1.1μA per amplifier, rail-to-rail output swing within 5mV of rails, and guaranteed performance over 0°C to 70°C in the MSOP-8 package.
Technical Context
The LTC6084CMS8#PBF integrates complementary PMOS/NMOS input pairs to achieve rail-to-rail common-mode input range (V– to V+), with seamless transition between transistor types near 0.9V–1.3V below V+. Its class AB output stage enables 7.7mA short-circuit current while maintaining 5mV rail saturation under no-load conditions.
Internal ESD protection diodes on all pins define the 1pA input bias current as leakage across reverse-biased junctions, which varies with temperature and common-mode voltage - confirmed by measured curves up to 40pA at 85°C and <1pA at 25°C. Shutdown logic is active-low, with SHDNA/SHDNB available only in DFN variants; the MS8 package lacks dedicated shutdown pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 1.5MHz - supports stable unity-gain operation with ≤100pF capacitive load and sets maximum closed-loop bandwidth for gain ≥1. |
| Input Bias Current | 1pA (typ @ 25°C) - enables high-impedance sensor interfacing (e.g., pH probes, photodiodes) without significant DC error. |
| Offset Voltage | 750μV (max) - ensures ≤0.75mV DC error in precision amplification stages without trimming. |
| Supply Voltage Range | 2.5V to 5.5V - compatible with single-cell Li-ion (3.0–4.2V), 3.3V logic, and 5V legacy systems. |
| Output Swing | Within 5mV of V+ and V– (no load) - maximizes dynamic range in low-voltage applications like wearable biosensors. |
| CMRR / PSRR | 70dB / 94dB (min) - rejects power supply ripple and common-mode interference in noisy industrial environments. |
| Slew Rate | 0.5V/μs - limits full-power bandwidth to ~160kHz but suffices for DC–10kHz sensor signal chains. |
Pinout & Package
Package: 8-Lead Plastic MSOP (MS8), 3.0mm × 3.0mm body, 0.65mm pitch, exposed pad not present (unlike DFN variants). Pin 1 marked via dot or notch; device orientation follows JEDEC MO-187.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output - drives external load; rail-to-rail swing enables full supply utilization. |
| 2 | –INA | Inverting input of Amplifier A - high-impedance node requiring guard ring layout for <1pA bias integrity. |
| 3 | +INA | Non-inverting input of Amplifier A - accepts signals from V– to V+ with no phase reversal. |
| 4 | V– | Negative supply rail - also connects internally to substrate; must be low-impedance for stability. |
| 5 | V+ | Positive supply rail - decoupling capacitor required within 1cm for PSRR optimization. |
| 6 | OUTB | Amplifier B output - independent channel; enables dual-sensor readout or differential drive. |
| 7 | –INB | Inverting input of Amplifier B - electrically isolated from Channel A; supports separate feedback networks. |
| 8 | +INB | Non-inverting input of Amplifier B - identical input structure to +INA; shares same CM range spec. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Supports signal acquisition across full supply range (e.g., 0–3.3V) without level-shifting circuitry. |
| 1pA input bias current (25°C) | Enables direct connection to >1GΩ source impedances (e.g., piezoelectric shock sensors) with <1mV error. |
| 110μA per amplifier supply current | Permits continuous operation in coin-cell-powered devices for >1 year (e.g., 220mAh CR2032 @ 220μA total). |
| 750μV max offset voltage | Eliminates need for external nulling in 12-bit ADC front-ends (LSB = 0.8mV @ 3.3V full-scale). |
| Unity-gain stable | Operates reliably with no external compensation in buffer, inverter, or follower configurations. |
Applications
| Portable Medical Sensors | Low-Power Data Acquisition |
|---|---|
Use Scenario: Amplifying microvolt-level EEG or ECG signals from dry electrodes in wearable patches. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier stage with ultra-low input current to avoid electrode polarization errors. Use Value: 1pA bias current prevents >10mV DC drift on 10MΩ electrode impedance, preserving baseline stability over hours. | Use Scenario: Conditioning thermistor or RTD outputs in battery-operated environmental monitors. IC Role / Device Role / Timing Role: Low-drift, rail-to-rail buffer driving SAR ADC reference inputs with minimal power overhead. Use Value: 750μV max offset contributes <0.02% error in 12-bit measurements; 110μA quiescent current extends 2xAA battery life to >5 years. |
| Consumer Wearables | Industrial Process Monitoring |
Use Scenario: Signal conditioning for MEMS accelerometers in fitness trackers detecting g-force changes. IC Role / Device Role / Timing Role: Dual-channel AC-coupled amplifier for X/Y axis sensor outputs, enabling real-time motion analysis. Use Value: 1.5MHz GBW supports accurate pulse response up to 10kHz vibration frequencies without phase lag. | Use Scenario: Isolated analog front-end for 4–20mA loop-powered transmitters in hazardous areas. IC Role / Device Role / Timing Role: Input buffer and voltage-to-current conversion driver with high PSRR to reject loop noise. Use Value: 94dB PSRR attenuates 100mV supply ripple to <200μV at output, meeting IEC 61000-4-4 immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6081CMS8#PBF | Lower 70μV max offset and 0.8μV/°C drift vs. LTC6084CMS8#PBF's 750μV/5μV/°C; same 1pA bias and 1.5MHz GBW. | Better for <16-bit precision systems where offset drift dominates error budget; higher cost. | Select LTC6081CMS8#PBF when VOS drift must stay <100μV over –40°C to 85°C; LTC6084CMS8#PBF suffices for 12-bit accuracy. |
| MCP6V81-E/MS | 750μV max offset, 1.2MHz GBW, 125μA supply current; Microchip's zero-drift architecture eliminates 1/f noise. | Superior low-frequency noise performance for DC-stable measurements; lacks shutdown mode. | Choose MCP6V81-E/MS for sub-Hz sensor applications (e.g., strain gauges); LTC6084CMS8#PBF preferred when shutdown current <2μA is mandatory. |
Compared with LTC6081CMS8#PBF and MCP6V81-E/MS, the LTC6084CMS8#PBF offers the lowest cost-per-channel for 12-bit precision systems requiring shutdown, while maintaining identical 1pA bias and rail-to-rail operation - making it optimal for cost-sensitive, battery-constrained designs where moderate offset is acceptable.
Availability
LTC6084CMS8#PBF is available at Aetrix Electronics and suitable for portable medical sensors, low-power data acquisition, consumer wearables, and industrial process monitoring requiring stable component supply across extended production lifecycles.
Supply support for LTC6084CMS8#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 ICs for precision measurement and control.
The LTC6084 belongs to Linear's precision rail-to-rail op amp product line, engineered for ultra-low input bias current and wide supply range to enable high-fidelity signal conditioning in space-, power-, and cost-constrained systems.
FAQ
What is the operating temperature range specified for the LTC6084CMS8#PBF?
The LTC6084CMS8#PBF is specified for 0°C to 70°C ambient operation. While characterized from –40°C to 85°C, only the 0°C to 70°C range is production-tested and guaranteed per datasheet Note 4. For extended temperature use, consider the LTC6084HMS8#PBF variant rated –40°C to 125°C.
Does the LTC6084CMS8#PBF include shutdown functionality?
No, the LTC6084CMS8#PBF in the MSOP-8 package does not feature shutdown pins. Shutdown capability (SHDNA/SHDNB) is exclusive to the 10-lead DFN (LTC6084CDD#PBF) and 16-lead DFN/SSOP quad variants. The MS8 package relies on global power cycling for current reduction.
What is the maximum capacitive load the LTC6084CMS8#PBF can drive in unity-gain configuration?
The LTC6084CMS8#PBF can drive up to 300pF in unity-gain configuration without instability, as verified in Typical Performance Characteristic Figure G17. For loads >300pF, adding a 10Ω–50Ω series resistor between output and capacitance restores phase margin.
How does the input bias current of the LTC6084CMS8#PBF vary with temperature?
The LTC6084CMS8#PBF exhibits 1pA typical input bias current at 25°C, rising to ≤40pA at 85°C per datasheet Table (IB row, C Suffix column). This exponential increase is due to ESD diode leakage and must be accounted for in >85°C high-impedance designs.
Is the LTC6084CMS8#PBF pin-compatible with other op amps in the LTC6084/LTC6085 family?
Yes, the LTC6084CMS8#PBF shares identical pinout with all LTC6084 dual variants in MSOP-8 (e.g., LTC6084HMS8#PBF), including OUTA, –INA, +INA, V–, V+, OUTB, –INB, +INB. However, it is not pin-compatible with DFN or SSOP packages due to differing pin counts and shutdown pin allocation.
LTC6084CMS8#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:
- 0.5V/µs
- Gain Bandwidth Product:
- 1.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 110µA (x2 Channels)
- Current - Output / Channel:
- 12.5 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC6084CMS8#PBF FAQ
1.How can I place an order for LTC6084CMS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6084CMS8#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 LTC6084CMS8#PBF reliable?
The price and inventory of LTC6084CMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6084CMS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC6084CMS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6084CMS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6084CMS8#PBF?
LTC6084CMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6084CMS8#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 LTC6084CMS8#PBF?
For technical support, including LTC6084CMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6084CMS8#PBF requirements.
6.How does Aetrix verify that LTC6084CMS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6084CMS8#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 LTC6084CMS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC6084CMS8#PBF?
All LTC6084CMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6084CMS8#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 LTC6084CMS8#PBF part is unused and in its original packaging.
Return procedure for LTC6084CMS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC6084CMS8#PBF Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
