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Analog Devices Inc. LTC6078IMS8#PBF
- Part No.:
- LTC6078IMS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6078IMS8#PBF.pdf
- Description:
- IC CMOS 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,533
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Product details
Overview
LTC6078IMS8#PBF from Analog Devices (formerly Linear Technology) is a dual micropower precision CMOS operational amplifier with rail-to-rail input and output swing, 25µV max offset voltage at 25°C, 0.7µV/°C max offset drift, and 54µA per amplifier supply current at 3V - optimized for high-impedance sensor signal conditioning in battery-powered instrumentation.
For engineers reviewing the LTC6078IMS8#PBF datasheet, LTC6078IMS8#PBF pinout, LTC6078IMS8#PBF application, or LTC6078IMS8#PBF equivalent, this page delivers verified package mapping (MS8), terminal functions, thermal-grade performance (–40°C to 125°C), real-world noise floor (16nV/√Hz), and validated alternatives for low-power precision analog design.
Technical Context
The LTC6078IMS8#PBF employs complementary PMOS/NMOS input stages enabling true rail-to-rail common-mode input range (V– to V+), with seamless transition between input pairs near 0.9V–1.3V below V+. Its 95dB min CMRR and 100dB min PSRR ensure stable DC accuracy under supply and common-mode variations.
Each amplifier features independent shutdown control (SHDN_A/SHDN_B) only in DFN packages - not present in the MS8 variant - and delivers 0.05V/µs slew rate with 420kHz gain-bandwidth product into 100kΩ load, supporting precision DC-coupled applications without stability compromise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - supports single-cell Li-ion, 3.3V, and 5V systems without level-shifting. |
| Input Offset Voltage | ≤25µV at 25°C - enables µV-level threshold detection and thermocouple signal conditioning. |
| Offset Drift | ≤0.7µV/°C - ensures <1µV total drift over 0–70°C industrial range, critical for long-term calibration stability. |
| Input Bias Current | ≤1pA at 25°C - preserves accuracy with >1GΩ feedback/sensor impedances without guard-ring overhead. |
| Supply Current | 54µA per amplifier at 3V - allows dual-channel operation on <110µA total, ideal for multi-year battery life. |
| CMRR / PSRR | 95dB / 100dB min - rejects supply noise and common-mode interference in noisy embedded environments. |
| Input Noise Density | 16nV/√Hz at 1kHz - sets fundamental limit for sub-mV signal amplification in photodiode or pH probe circuits. |
Pinout & Package
Package: 8-lead plastic MSOP (MS8), 3.00mm × 3.00mm body, 0.65mm pitch, exposed pad connected to V–.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Amplifier A output | Rail-to-rail sourcing/sinking up to 2mA; high-Z when unused in single-amplifier configurations. |
| 2 (–INA) | Inverting input of Amp A | Low-bias node requiring guarded layout; accepts V– to V+ common-mode voltage. |
| 3 (+INA) | Noninverting input of Amp A | Matches –INA in bias and capacitance; differential input capacitance = 10pF. |
| 4 (V–) | Negative supply rail | Reference for all internal circuitry; exposed pad electrically tied to this pin. |
| 5 (V+) | Positive supply rail | Accepts 2.7V–5.5V; PSRR rejection maintains output accuracy across supply ripple. |
| 6 (OUTB) | Amplifier B output | Independent output; no crosstalk (–110dB channel separation at 10kHz). |
| 7 (–INB) | Inverting input of Amp B | Electrically isolated from Amp A inputs; same bias and noise specs as –INA. |
| 8 (+INB) | Noninverting input of Amp B | Enables dual-channel instrumentation amp front-end with matched gain paths. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Full-swing operation from V– to V+ enables maximum dynamic range in single-supply systems (e.g., 0–3.3V ADC interfacing). |
| Micropower operation | 54µA per amplifier at 3V allows dual-channel precision amplification within 110µA total budget - suitable for coin-cell-powered sensors. |
| Ultra-low input bias | 1pA max at 25°C eliminates error from leakage across PCB contamination or high-value feedback resistors (>100MΩ). |
| High CMRR/PSRR | 95dB/100dB minimum ensures µV-level signals remain intact despite 100mV supply ripple or 1V common-mode transients. |
| Industrial temperature grade | Specified from –40°C to 125°C with tested VOS and drift - qualified for automotive cabin, industrial PLC, and downhole sensing. |
Applications
| Photodiode Amplifier | Thermocouple Signal Conditioner |
|---|---|
Use Scenario: Converting weak current from IR photodiode (e.g., TEMD1000 at 870nm) into stable voltage with minimal dark-current error. IC Role / Device Role / Timing Role: Transimpedance amplifier with 1MΩ feedback, leveraging 1pA bias and 16nV/√Hz noise to achieve 600mV/µW sensitivity. Use Value: Enables µW-level optical power measurement without cooling or chopper stabilization - 10× lower noise than standard precision op-amps. | Use Scenario: Amplifying microvolt-level Seebeck voltage from K-type thermocouple (40.6µV/°C) across 0–500°C range with ±0.5°C accuracy. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with cold-junction compensation interface, using <25µV offset to avoid calibration drift. Use Value: Eliminates need for external offset trimming or auto-zero circuitry - reduces BOM count and improves long-term repeatability. |
| pH Probe Amplifier | Microvolt Threshold Detector |
Use Scenario: Buffering ultra-high-impedance glass pH electrode (≥1TΩ) while rejecting leakage-induced errors in humid environments. IC Role / Device Role / Timing Role: Unity-gain buffer with guard-driven input traces, exploiting 1pA bias and rail-to-rail output to deliver 59.2mV/pH slope linearly. Use Value: Maintains >12-bit effective resolution without active guarding circuitry - simplifies PCB layout and reduces test complexity. | Use Scenario: Detecting sub-10µV voltage thresholds in strain gauge or bridge-based load cells with factory-set trip points. IC Role / Device Role / Timing Role: Comparator input stage with <25µV offset and <0.7µV/°C drift, feeding into external comparator or ADC reference. Use Value: Achieves microvolt-level decision accuracy over full industrial temperature range - avoids costly calibration per unit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2051IMS8#PBF | Zero-drift architecture; 3µV VOS, 30nV/°C drift, 170µA supply current - higher accuracy but 3× power draw. | Better for µV-level DC stability over time/temperature; unsuitable for <150µA total budget designs. | Select LTC2051IMS8#PBF only when drift-limited error dominates over power constraints. |
| LT6011IMS8#PBF | 60µV VOS, 300pA IB, 135µA supply - looser DC specs but higher drive capability (20mA output). | Preferred for driving capacitive loads or low-impedance references where speed > precision. | Choose LT6011IMS8#PBF when interfacing to SAR ADCs or DAC buffers requiring fast settling. |
Compared with LTC6078IMS8#PBF, LTC2051IMS8#PBF trades 3× higher supply current for 8× lower offset drift, while LT6011IMS8#PBF sacrifices 2.4× higher offset and 300× higher bias current for 370× greater output drive - making LTC6078IMS8#PBF optimal for ultra-low-power, high-impedance DC signal chains.
Availability
LTC6078IMS8#PBF is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor nodes, and medical diagnostics equipment requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LTC6078IMS8#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 its legacy of high-performance analog ICs with rigorous qualification and long-term support.
The LTC6078 series belongs to Linear's precision micropower op-amp product line, designed specifically for battery-operated instrumentation, sensor interfaces, and industrial measurement systems demanding µV-level accuracy at nanoamp bias currents.
FAQ
What is the operating temperature range for the LTC6078IMS8#PBF?
The LTC6078IMS8#PBF is rated for operation from –40°C to 125°C and is fully specified across this range for key parameters including input offset voltage, offset drift, and supply current. The 'I' grade suffix confirms industrial temperature qualification, with VOS and drift tested at both 25°C and 125°C per datasheet Note 5.
Does the LTC6078IMS8#PBF include shutdown functionality?
No, the LTC6078IMS8#PBF does not feature shutdown pins. Shutdown control (SHDN_A/SHDN_B) is only available on the LTC6078DD (10-lead DFN) variant. The MS8 package contains only the eight core signal and supply terminals - confirmed by the pinout diagram on page 8 of the datasheet and absence of shutdown pins in the MS8 mechanical drawing.
What is the maximum capacitive load the LTC6078IMS8#PBF can drive stably?
The LTC6078IMS8#PBF can drive up to 200pF in unity-gain configuration without oscillation, as verified in Figure 19 of the datasheet. Stability margin increases with closed-loop gain; for gains ≥10, it supports >1nF loads. Adding a 10–50Ω series resistor between output and load further enhances robustness with larger capacitances.
How does the LTC6078IMS8#PBF achieve rail-to-rail input operation?
The LTC6078IMS8#PBF uses a composite input stage combining PMOS and NMOS differential pairs that activate based on common-mode voltage: the NMOS pair operates near V+, the PMOS pair near V–, with seamless crossover between 0.9V and 1.3V below V+. This architecture extends the input range to V– and V+ without dead zones or increased distortion at supply rails.
Is the exposed pad on the LTC6078IMS8#PBF package electrically connected?
Yes, the exposed pad on the LTC6078IMS8#PBF MS8 package is internally connected to the V– pin (Pin 4), as explicitly stated in the "Pin Functions" section on page 8 of the datasheet and confirmed in the MS8 mechanical drawing (LTC DWG # 05-08-1660). It must be soldered to a PCB ground or negative supply plane for thermal and electrical integrity.
LTC6078IMS8#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:
- 0.05V/µs
- Gain Bandwidth Product:
- 750 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 25 µV
- Current - Supply:
- 55µA (x2 Channels)
- Current - Output / Channel:
- 25 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
LTC6078IMS8#PBF FAQ
1.How can I place an order for LTC6078IMS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6078IMS8#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 LTC6078IMS8#PBF reliable?
The price and inventory of LTC6078IMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6078IMS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC6078IMS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6078IMS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6078IMS8#PBF?
LTC6078IMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6078IMS8#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 LTC6078IMS8#PBF?
For technical support, including LTC6078IMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6078IMS8#PBF requirements.
6.How does Aetrix verify that LTC6078IMS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6078IMS8#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 LTC6078IMS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC6078IMS8#PBF?
All LTC6078IMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6078IMS8#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 LTC6078IMS8#PBF part is unused and in its original packaging.
Return procedure for LTC6078IMS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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