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Analog Devices Inc. LTC6078ACMS8#TRPBF
- Part No.:
- LTC6078ACMS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6078ACMS8#TRPBF.pdf
- Description:
- IC CMOS 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,686
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Product details
Overview
LTC6078ACMS8#TRPBF from Analog Devices (formerly Linear Technology) is a dual-channel, micropower precision CMOS operational amplifier with rail-to-rail input and output swing, 25 µV max offset voltage at 25°C, 0.7 µV/°C max offset drift, and 54 µA per amplifier supply current at 3 V - optimized for high-impedance sensor signal conditioning in battery-powered instrumentation.
For engineers reviewing the LTC6078ACMS8#TRPBF datasheet, LTC6078ACMS8#TRPBF pinout, LTC6078ACMS8#TRPBF application, or LTC6078ACMS8#TRPBF equivalent, this page delivers verified package mapping (8-lead MSOP), confirmed dual-amplifier topology, rail-to-rail I/O behavior, sub-50 pA bias current over temperature, and precise thermal hysteresis performance for microvolt-level DC-critical designs.
Technical Context
The LTC6078ACMS8#TRPBF integrates two independent precision amplifiers sharing a common 2.7–5.5 V supply, each featuring complementary PMOS/NMOS input stages enabling true rail-to-rail common-mode input range and output swing within 15 mV of rails at 2 mA load. Its trimmed CMOS architecture achieves 95 dB min CMRR and 100 dB min PSRR across temperature.
It supports active shutdown via dedicated SHDN_A/SHDN_B pins only in the DFN-10 variant; the MS8 package (LTC6078ACMS8#TRPBF) lacks shutdown functionality. Input noise density is 16 nV/√Hz at 1 kHz, and large-signal voltage gain exceeds 115 dB with 420 kHz gain-bandwidth product under 100 kΩ load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Offset Voltage | ±25 µV at 25°C - enables direct measurement of µV-level thermocouple or pH probe signals without nulling circuitry |
| Offset Drift | ±0.7 µV/°C max - ensures <1 µV total drift over 0–70°C industrial range, critical for unattended sensor logging |
| Input Bias Current | 1 pA at 25°C, ≤50 pA up to 85°C - preserves accuracy with >1 GΩ feedback networks and photodiode sources |
| Supply Current per Amp | 54 µA at 3 V - allows dual-channel operation on coin-cell batteries for >5 years in low-duty-cycle IoT nodes |
| CMRR / PSRR | 95 dB / 100 dB min - rejects power supply ripple and common-mode interference in single-supply portable systems |
| Input Noise Density | 16 nV/√Hz at 1 kHz - supports low-noise amplification of weak signals from accelerometers or humidity sensors |
| Rail-to-Rail I/O | Inputs operate V– to V+, outputs swing within 15 mV of rails at 2 mA - maximizes dynamic range in 3 V systems |
Pinout & Package
Package: 8-lead MSOP (MS8), 3.00 mm × 3.00 mm body, 0.65 mm pitch, exposed pad connected to V–.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output - drives loads up to 2 mA while maintaining rail-to-rail swing |
| 2 | –INA | Inverting input of Amplifier A - high-impedance node (<1 pA bias) for precision feedback networks |
| 3 | +INA | Noninverting input of Amplifier A - accepts signals from V– to V+ with no phase reversal |
| 4 | V– | Negative supply rail - also connects to exposed thermal pad for improved heat dissipation |
| 5 | V+ | Positive supply rail - operates from 2.7 V to 5.5 V; PSRR ≥100 dB minimizes supply noise coupling |
| 6 | OUTB | Amplifier B output - electrically isolated from OUTA; supports dual-channel signal paths |
| 7 | –INB | Inverting input of Amplifier B - matched to –INA for differential pair configurations |
| 8 | +INB | Noninverting input of Amplifier B - identical electrical characteristics to +INA |
Key Features
| Feature | Design Value |
|---|---|
| Micropower operation | 54 µA per amplifier at 3 V enables always-on sensing in energy-harvesting and wearable devices |
| Ultra-low input bias | 1 pA typical at 25°C eliminates error from leakage across PCB contamination or high-value resistors |
| Thermal hysteresis | ≤1 µV typical VOS shift after three –45°C to 90°C cycles - ensures long-term calibration stability |
| Rail-to-rail input stage | PMOS/NMOS composite input extends common-mode range to both supply rails without dead zones |
| Low 1/f noise | 1 µVP-P (0.1–10 Hz) - critical for precision DC measurements in medical and analytical instruments |
Applications
| Photodiode Amplifier | High-Impedance Sensor Amplifier |
|---|---|
Use Scenario: Amplifying nanoampere photocurrents from IR photodiodes (e.g., TEMD1000 at 870 nm) into measurable voltage outputs. IC Role / Device Role / Timing Role: Transimpedance amplifier with 1 pA input bias preserving signal integrity across >1 GΩ feedback resistors. Use Value: Enables 600 mV/µW responsivity without gain error from input leakage - verified in LTC6078 TA05 reference design. |
Use Scenario: Conditioning signals from pH probes (e.g., Sensorex S200C) requiring >1 TΩ input impedance and µV-level offset stability. IC Role / Device Role / Timing Role: High-Z buffer and precision DC amplifier with rail-to-rail output driving ADC reference buffers. Use Value: Delivers 1.25 V + 59.2 mV/pH transfer function with <25 µV total error - validated in LTC6078 TA10 schematic. |
| Microvolt Accuracy Threshold Detection | Battery-Powered Instrumentation |
Use Scenario: Detecting thermocouple outputs (e.g., Type K, 40.6 µV/°C) with ±0.5°C accuracy over 0–500°C range. IC Role / Device Role / Timing Role: Precision front-end amplifier with <25 µV offset and 0.7 µV/°C drift minimizing cold-junction compensation error. Use Value: Achieves ±0.5°C accuracy without trimming - demonstrated in LTC6078 TA01a thermocouple conditioner. |
Use Scenario: Signal conditioning in portable gas analyzers or handheld multimeters powered by single 3 V coin cells. IC Role / Device Role / Timing Role: Dual-channel analog front-end handling sensor excitation, filtering, and ADC driver functions. Use Value: Draws only 108 µA total (2 × 54 µA), extending battery life beyond 5 years at 1 Hz sampling - confirmed in LTC6078 spec table. |
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#TRPBF | Zero-drift architecture; 3 µV VOS, 30 nV/°C drift, 170 µA supply current - higher precision but 3× power draw | Better for ultra-stable DC offsets; less suitable for multi-year battery life requirements | Select when VOS drift dominates error budget over power constraints |
| LT6012IMS8#TRPBF | 60 µV VOS, 300 pA IB, 135 µA supply current - higher offset and bias, but wider GBW (1.9 MHz) | Preferred for higher-speed precision tasks (e.g., fast-settling sample-and-hold); not for µV-level DC | Select when bandwidth >1 MHz is required and 60 µV offset is acceptable |
Compared with LTC2051IMS8#TRPBF and LT6012IMS8#TRPBF, the LTC6078ACMS8#TRPBF uniquely balances sub-25 µV offset, sub-50 pA bias, and micropower consumption - making it optimal for long-life, high-Z, DC-critical instrumentation where neither zero-drift complexity nor speed is needed.
Availability
LTC6078ACMS8#TRPBF is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered sensor nodes, and medical diagnostics equipment requiring stable component supply and guaranteed long-term availability.
Supply support for LTC6078ACMS8#TRPBF 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 testing and automotive-grade reliability standards.
The LTC6078 series belongs to Linear's precision op amp product line, designed specifically for microvolt-level DC signal conditioning in space-constrained, low-power industrial and medical instrumentation.
FAQ
What is the operating temperature range for the LTC6078ACMS8#TRPBF?
The LTC6078ACMS8#TRPBF is specified for operation from –40°C to 85°C and guaranteed to meet all electrical specifications across that full range. Its "A" grade denotes enhanced initial offset trim (±25 µV max at 25°C) and tighter drift control (±0.7 µV/°C max), validated per Linear's production test flow for industrial applications.
Does the LTC6078ACMS8#TRPBF support shutdown mode?
No, the LTC6078ACMS8#TRPBF does not include shutdown functionality. Shutdown pins (SHDN_A/SHDN_B) are only present on the 10-lead DFN variant (LTC6078CDD#TRPBF). The MS8 package used in LTC6078ACMS8#TRPBF omits these pins entirely - confirmed by the MS8 pinout diagram and package description in the datasheet.
What is the maximum capacitive load the LTC6078ACMS8#TRPBF can drive stably?
The LTC6078ACMS8#TRPBF can drive up to 200 pF in unity-gain configuration without oscillation, as verified in the "Capacitive Load" section of the datasheet. Stability improves with higher closed-loop gain; adding a small series resistor (e.g., 10–50 Ω) between output and load further increases drive capability for larger capacitances.
How does the LTC6078ACMS8#TRPBF achieve rail-to-rail input operation?
The LTC6078ACMS8#TRPBF uses a composite input stage combining PMOS and NMOS differential pairs. The NMOS pair operates at high common-mode voltages (near V+), while the PMOS pair activates at low common-mode voltages (near V–), enabling seamless transition and continuous operation from V– to V+ without input crossover distortion or dead zones.
Is the exposed pad on the LTC6078ACMS8#TRPBF package electrically connected?
Yes, the exposed pad on the LTC6078ACMS8#TRPBF MS8 package is internally connected to the V– pin (pin 4), as explicitly stated in the "PACKAGE DESCRIPTION" section of the datasheet. It must be soldered to a PCB ground or negative supply plane for optimal thermal performance and electrical stability.
LTC6078ACMS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 20 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
LTC6078ACMS8#TRPBF FAQ
1.How can I place an order for LTC6078ACMS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6078ACMS8#TRPBF 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 LTC6078ACMS8#TRPBF reliable?
The price and inventory of LTC6078ACMS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6078ACMS8#TRPBF is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6078ACMS8#TRPBF transactions.
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4.How is shipping managed for LTC6078ACMS8#TRPBF?
LTC6078ACMS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6078ACMS8#TRPBF 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 LTC6078ACMS8#TRPBF?
For technical support, including LTC6078ACMS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6078ACMS8#TRPBF requirements.
6.How does Aetrix verify that LTC6078ACMS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6078ACMS8#TRPBF 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 LTC6078ACMS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6078ACMS8#TRPBF?
All LTC6078ACMS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6078ACMS8#TRPBF, 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 LTC6078ACMS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC6078ACMS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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