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Analog Devices Inc. LTC6078CDD#TRPBF
- Part No.:
- LTC6078CDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LTC6078CDD#TRPBF.pdf
- Description:
- IC CMOS 2 CIRCUIT 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:9,959
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Product details
Overview
LTC6078CDD#TRPBF from Analog Devices (acquired Linear Technology) is a dual micropower precision CMOS operational amplifier with rail-to-rail input/output swing, 25µV max offset voltage at 25°C, 0.7µV/°C max offset drift, and 54µA per amplifier supply current at 3V. It operates from 2.7V to 5.5V across –40°C to 85°C and is used in photodiode amplification, thermocouple signal conditioning, and microvolt-accuracy threshold detection.
For engineers reviewing the LTC6078CDD#TRPBF datasheet, LTC6078CDD#TRPBF pinout, LTC6078CDD#TRPBF application, or LTC6078CDD#TRPBF equivalent, key selection criteria include guaranteed 25µV VOS at 25°C, sub-1pA input bias current at 25°C, 95dB min CMRR, 100dB min PSRR, and DFN-10 package compatibility with high-impedance sensor interfaces requiring minimal thermal EMF error.
Technical Context
The LTC6078CDD#TRPBF integrates dual independent amplifiers with complementary PMOS/NMOS input stages enabling true rail-to-rail common-mode input range (V– to V+) and output swing within 1mV of rails under light load. Its micropower architecture uses precision trimming for low offset and low-drift performance without chopper stabilization.
Each amplifier features active-low shutdown pins (SHDN_A and SHDN_B), delivering <2µA shutdown current and 50µs turn-on time. The DFN-10 package includes an exposed pad connected to V–, supporting thermal management in space-constrained portable instrumentation designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Offset Voltage | 25µV at 25°C - enables µV-level DC accuracy in strain gauge or pH probe front-ends without calibration. |
| Offset Drift | 0.7µV/°C max - ensures stable baseline in industrial temperature monitoring over –40°C to 85°C operating range. |
| Input Bias Current | 1pA at 25°C - preserves signal integrity with >1GΩ source impedances, critical for photodiode and humidity sensor interfaces. |
| Supply Current | 54µA per amplifier at 3V - supports battery life >10 years in coin-cell-powered IoT sensor nodes. |
| CMRR | 95dB minimum - rejects common-mode noise in single-supply bridge amplifier configurations. |
| PSRR | 100dB minimum - maintains gain accuracy despite ripple on shared 3.3V system rails. |
| Input Noise Density | 16nV/√Hz at 1kHz - limits contribution to total integrated noise in 10Hz–1kHz sensor bandwidths. |
| Operating Voltage | 2.7V to 5.5V - compatible with Li-ion, 3.3V logic, and dual-supply legacy systems without level-shifting. |
Pinout & Package
Package: 10-lead (3mm × 3mm) plastic DFN with exposed pad connected to V–. Thermal resistance θJA = 43°C/W. RoHS-compliant, lead-free #TRPBF tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10 | V+, V– | Positive and negative supply rails - decoupling capacitors must be placed within 2mm for stability. |
| 2, 9 | OUTB, OUTA | Amplifier B and A outputs - rail-to-rail swing supports direct interface to SAR ADC reference inputs. |
| 3, 8 | –INB, –INA | Inverting inputs - matched layout required to minimize thermoelectric offset in precision differential sensing. |
| 4, 7 | +INB, +INA | Noninverting inputs - guard ring routing essential to prevent PCB leakage from exceeding 1pA bias current. |
| 5, 6 | SHDN_B, SHDN_A | Active-low shutdown controls - internal pull-up to V+ allows operation when floating; drives high-impedance state during sleep. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization in 3.3V systems, eliminating need for level-shifting circuitry in data acquisition front-ends. |
| Sub-1pA input bias | Permits use of ultra-high-value feedback resistors (>100MΩ) without gain error, critical for integrating capacitors in charge amplifiers. |
| 25µV max VOS | Reduces or eliminates factory calibration steps in medical-grade ECG and pressure transducer modules. |
| 54µA per amplifier | Allows dual-channel signal conditioning in wearable devices with CR2032 battery life exceeding 5 years at 1Hz sampling. |
| 95dB min CMRR | Supports accurate measurement of mV-level signals from Wheatstone bridges in noisy factory environments. |
| Shutdown mode | Reduces system standby power by >99% in battery-powered gas sensors, enabling wake-on-event architectures. |
Applications
| Photodiode Amplifier | Thermocouple Signal Conditioner |
|---|---|
Use Scenario: Amplifying low-current output (nA–µA) from IR photodiodes in optical smoke detectors. IC Role / Device Role / Timing Role: Transimpedance amplifier with 1MΩ–1GΩ feedback resistor, providing stable gain and low input capacitance. Use Value: 1pA input bias prevents current loss across feedback network; 16nV/√Hz noise density maintains SNR >70dB in 100Hz bandwidth. | Use Scenario: Cold-junction compensation and linearization of Type K thermocouple outputs (–200°C to +1350°C). IC Role / Device Role / Timing Role: Precision buffer and offset correction stage before analog-to-digital conversion. Use Value: 25µV VOS contributes <0.5°C error at 25°C; rail-to-rail output drives 12-bit ADC reference without external op-amp. |
| pH Probe Amplifier | Microvolt Threshold Detector |
Use Scenario: High-impedance buffering of glass electrode outputs (≥1GΩ source impedance) in portable pH meters. IC Role / Device Role / Timing Role: Unity-gain follower with guarded input traces to suppress leakage-induced offset. Use Value: Input bias <1pA avoids >1mV error across 1GΩ electrode; CMRR >95dB rejects 50/60Hz pickup in unshielded handheld enclosures. | Use Scenario: Detecting microvolt-level fault signatures in motor winding insulation monitoring systems. IC Role / Device Role / Timing Role: Precision comparator front-end with programmable hysteresis via feedback network. Use Value: 0.7µV/°C drift ensures <2µV total drift over 10°C ambient change, enabling reliable 5µV trip thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2051CDD#TRPBF | Zero-drift architecture; 3µV VOS, 30nV/°C drift, 170µA supply current - higher precision but 3× power consumption. | Better for DC-critical applications like precision weigh scales; unsuitable for multi-year battery life requirements. | Select LTC2051CDD#TRPBF only when VOS drift dominates error budget and power is secondary. |
| OPA333AIDBVR | Zero-drift; 10µV VOS, 0.1µV/°C drift, 17µA supply current - lower power but limited 5.5V max supply and no shutdown pins. | Ideal for always-on ultra-low-power sensor nodes; lacks independent shutdown control needed in duty-cycled systems. | Choose OPA333AIDBVR for continuous-sensing wearables where shutdown functionality is unnecessary. |
Compared with LTC2051CDD#TRPBF and OPA333AIDBVR, the LTC6078CDD#TRPBF delivers optimal balance of microvolt-level precision, sub-1pA bias, dual shutdown control, and 54µA quiescent current - making it uniquely suited for battery-powered instrumentation requiring both accuracy and configurable power states.
Availability
LTC6078CDD#TRPBF is available at Aetrix Electronics and suitable for photodiode amplification, thermocouple signal conditioning, and pH probe interfacing requiring stable component supply across industrial, medical, and environmental monitoring programs.
Supply support for LTC6078CDD#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, formed through the acquisition of Linear Technology in 2017.
The LTC6078/LTC6079 family was designed specifically for micropower precision signal conditioning in portable and remote sensor systems where battery life, DC accuracy, and thermal stability are co-primary constraints.
FAQ
What is the maximum operating temperature range for the LTC6078CDD#TRPBF?
The LTC6078CDD#TRPBF is specified for operation from –40°C to 85°C. Its absolute maximum junction temperature is 125°C, and storage temperature range is –65°C to 125°C. The 'C' grade suffix confirms commercial temperature qualification, with full electrical specifications guaranteed across this range.
Does the LTC6078CDD#TRPBF support rail-to-rail input and output simultaneously?
Yes, the LTC6078CDD#TRPBF supports true rail-to-rail input common-mode range (V– to V+) and rail-to-rail output swing (within 1mV of V– or V+ under light load). This is achieved via complementary PMOS/NMOS input pairs and optimized output stage design, enabling full utilization of 2.7V–5.5V supply rails in single-supply configurations.
How does the shutdown feature function on the LTC6078CDD#TRPBF?
The LTC6078CDD#TRPBF provides two independent active-low shutdown pins: SHDN_A (Pin 6) and SHDN_B (Pin 5). When pulled ≤0.8V, each amplifier enters shutdown, drawing <2µA supply current and placing its output in high-impedance state. Internal pull-up current sources hold both pins at V+ when floating, ensuring normal operation without external biasing.
What is the typical input bias current of the LTC6078CDD#TRPBF at 85°C?
The LTC6078CDD#TRPBF has a maximum input bias current of 50pA at temperatures ≤85°C. At 25°C, typical input bias current is 0.2pA, with a maximum of 1pA. This ultra-low bias enables stable operation with high-impedance sources such as pH electrodes and piezoresistive sensors without significant DC error.
Can the LTC6078CDD#TRPBF drive capacitive loads, and if so, up to what value?
Yes, the LTC6078CDD#TRPBF can drive capacitive loads up to 200pF in unity-gain configuration. Driving capability increases with closed-loop gain; adding a small series resistor (e.g., 10–50Ω) between output and load further enhances stability with larger capacitances. Layout best practices-such as minimizing trace length and avoiding ground-plane splits under inputs-are critical to preserve phase margin.
LTC6078CDD#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- 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:
- 10 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:
- 10-DFN (3x3)
LTC6078CDD#TRPBF FAQ
1.How can I place an order for LTC6078CDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6078CDD#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 LTC6078CDD#TRPBF reliable?
The price and inventory of LTC6078CDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6078CDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6078CDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6078CDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6078CDD#TRPBF?
LTC6078CDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6078CDD#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 LTC6078CDD#TRPBF?
For technical support, including LTC6078CDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6078CDD#TRPBF requirements.
6.How does Aetrix verify that LTC6078CDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6078CDD#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 LTC6078CDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6078CDD#TRPBF?
All LTC6078CDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6078CDD#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 LTC6078CDD#TRPBF part is unused and in its original packaging.
Return procedure for LTC6078CDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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