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Analog Devices Inc. LTC6079CDHC#PBF
- Part No.:
- LTC6079CDHC#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC6079CDHC#PBF.pdf
- Description:
- IC CMOS 4 CIRCUIT 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:515
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Product details
Overview
LTC6079CDHC#PBF from Analog Devices (acquired Linear Technology) is a quad 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 - enabling high-accuracy signal conditioning in battery-powered instrumentation and sensor interfaces.
For engineers reviewing the LTC6079CDHC#PBF datasheet, LTC6079CDHC#PBF pinout, LTC6079CDHC#PBF application, or LTC6079CDHC#PBF equivalent, this page delivers verified package mapping (16-lead DFN), confirmed thermal performance (–40°C to 85°C operating range), real-world noise specs (16nV/√Hz @ 1kHz), and precise alternative part guidance for low-power precision analog design.
Technical Context
The LTC6079CDHC#PBF integrates four independent amplifiers sharing a common 2.7V–5.5V supply, each featuring dual-input-stage CMOS architecture (PMOS + NMOS pairs) to achieve true rail-to-rail input common-mode range (V– to V+). Its shutdown pins (SHDN_A/SHDN_B on Pins 5/6) are active-low and only implemented in the DFN10 variant - not present in the DHC16 package.
It delivers 95dB min CMRR and 100dB min PSRR across temperature, with guaranteed performance over –40°C to 85°C (C-grade), and supports capacitive loads up to 200pF in unity-gain configuration. Input bias current remains below 1pA at 25°C, critical for photodiode and pH probe applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - enables direct operation from single Li-ion or 3.3V/5V rails without regulation. |
| Max Offset Voltage | 25µV at 25°C - ensures µV-level DC accuracy in thermocouple or bridge sensor front-ends. |
| Offset Drift | 0.7µV/°C max - maintains stability across industrial temperature ranges without recalibration. |
| Supply Current per Amp | 54µA at 3V - allows four-channel precision amplification within 216µA total, ideal for multi-sensor IoT nodes. |
| Input Bias Current | 1pA at 25°C - preserves gain accuracy with GΩ-range feedback networks in photodiode amps. |
| CMRR / PSRR | 95dB / 100dB min - rejects power supply ripple and common-mode interference in noisy environments. |
| Input Noise Density | 16nV/√Hz @ 1kHz - supports low-noise amplification of microvolt-level sensor outputs. |
Pinout & Package
16-lead plastic DFN package (5mm × 3mm), exposed pad connected to V–; thermal resistance θJA = 43°C/W; maximum junction temperature = 125°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | OUTA, –INA, +INA, V– | Amplifier A output, inverting/non-inverting inputs, and negative supply - forms first op-amp channel. |
| 5, 6, 7, 8 | +INB, –INB, OUTB, NC | Amplifier B inputs/outputs; Pin 8 is no-connect - isolates unused internal node. |
| 9, 10, 11, 12 | OUTD, –IND, +IND, V– | Amplifier D output and inputs; shared V– with Pin 4 - requires low-impedance ground plane. |
| 13, 14, 15, 16 | +INC, –INC, OUTC, NC | Amplifier C inputs/outputs; Pin 16 is no-connect - avoids unintended coupling paths. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization with single-supply systems down to 2.7V. |
| 1pA input bias (25°C) | Permits use with >1GΩ feedback resistors without significant error voltage. |
| 25µV max VOS | Eliminates need for external trimming in medical-grade sensor signal chains. |
| 16nV/√Hz input noise | Supports clean amplification of low-level signals from thermistors or strain gauges. |
| –40°C to 85°C operation | Validated for deployment in automotive cabin modules and industrial PLC I/O cards. |
Applications
| Photodiode Amplifier | Thermocouple Signal Conditioner |
|---|---|
Use Scenario: Converting weak current from IR photodiode (e.g., TEMD1000 at 870nm) into stable voltage output. IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current preserving gain accuracy. Use Value: 1pA input bias prevents signal loss across 1MΩ–1GΩ feedback resistors; 16nV/√Hz noise ensures SNR > 70dB for µW-level optical detection. | Use Scenario: Amplifying microvolt-level Seebeck voltage from K-type thermocouple (40.6µV/°C) across 0°C–500°C range. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with cold-junction compensation interface. Use Value: 25µV max offset contributes <0.6°C error at 500°C; 0.7µV/°C drift adds <0.35°C error over 50°C ambient shift. |
| pH Probe Amplifier | High-Impedance Sensor Interface |
Use Scenario: Buffering and scaling output of glass pH electrode (input impedance >1TΩ) for ADC digitization. IC Role / Device Role / Timing Role: Unity-gain buffer with guarded input to prevent leakage-induced offset. Use Value: 1pA input bias avoids >1mV error across 1GΩ probe impedance; rail-to-rail output drives 0–5V ADC reference directly. | Use Scenario: Conditioning output from MEMS accelerometer (e.g., Columbia Research Labs, 60mV/g) or humidity sensor (GE G-CAP). IC Role / Device Role / Timing Role: Low-drift, low-noise gain stage with matched channel separation (>110dB). Use Value: Quad configuration enables simultaneous signal conditioning for multi-axis motion or multi-parameter environmental sensing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6079IDHC#PBF | Same quad architecture and DFN16 package, but rated for –40°C to 85°C extended temp range (I-grade vs C-grade). | Required for designs needing full-spec performance across full industrial temperature range, not just commercial grade. | Select when operating ambient exceeds 70°C or QA sampling at temperature extremes is mandated. |
| LT6012CGN#PBF | Quad precision op amp in 16-lead SSOP; higher 135µA supply current, 60µV max VOS, 300pA input bias. | Better suited for higher-speed applications (1.9MHz GBW) where ultra-low power is secondary to bandwidth. | Choose when >1MHz closed-loop bandwidth is needed and 216µA total quiescent current is acceptable. |
Compared with LTC6079CDHC#PBF, the LTC6079IDHC#PBF offers identical functionality with extended temperature validation, while the LT6012CGN#PBF trades micropower for higher speed and relaxed DC precision - making them complementary rather than drop-in replacements.
Availability
LTC6079CDHC#PBF is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered sensor nodes, and industrial data acquisition systems requiring stable component supply and long-term lifecycle support.
Supply support for LTC6079CDHC#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. (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 product line was designed by Linear Technology specifically for ultra-low-power, high-precision DC-coupled applications including medical sensors, portable test equipment, and energy-harvesting systems.
FAQ
What is the operating temperature range for the LTC6079CDHC#PBF?
The LTC6079CDHC#PBF is specified for commercial operation from –40°C to 85°C, with guaranteed parametric performance over 0°C to 70°C. It is not qualified for the extended –40°C to 125°C range (H-grade), which applies only to MSOP and SSOP packages - the DHC16 variant is C/I-grade only.
Does the LTC6079CDHC#PBF include shutdown functionality?
No, the LTC6079CDHC#PBF does not include shutdown pins. Shutdown capability (SHDN_A/SHDN_B) is only available in the 10-lead DFN (DD) package for the LTC6078 dual version. The 16-lead DHC package used by LTC6079CDHC#PBF has no dedicated shutdown terminals.
What is the maximum capacitive load the LTC6079CDHC#PBF can drive stably?
The LTC6079CDHC#PBF can drive up to 200pF capacitively in unity-gain configuration while maintaining phase margin >66°. Stability improves with higher closed-loop gain; adding a small series resistor (e.g., 10–50Ω) between output and load further increases usable capacitance.
How does the input stage architecture enable rail-to-rail operation in the LTC6079CDHC#PBF?
The LTC6079CDHC#PBF uses complementary PMOS and NMOS differential input pairs that activate based on common-mode voltage: the NMOS pair operates near V+, the PMOS pair near V–, with seamless transition between ~0.9V–1.3V below V+. This dual-input topology achieves full V– to V+ common-mode range without dead zones.
Is the exposed thermal pad on the LTC6079CDHC#PBF internally connected, and how should it be handled?
Yes, the exposed pad on the LTC6079CDHC#PBF is internally connected to V–. It must be soldered to a PCB copper pour tied to the negative supply plane to ensure proper thermal dissipation (θJA = 43°C/W) and electrical stability. Floating or unconnected pads degrade thermal performance and may cause oscillation.
LTC6079CDHC#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- 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 (x4 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:
- 16-DFN (5x3)
LTC6079CDHC#PBF FAQ
1.How can I place an order for LTC6079CDHC#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6079CDHC#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 LTC6079CDHC#PBF reliable?
The price and inventory of LTC6079CDHC#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6079CDHC#PBF is usually 5 days.
3.What payment methods are accepted for LTC6079CDHC#PBF?
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Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6079CDHC#PBF?
LTC6079CDHC#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6079CDHC#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 LTC6079CDHC#PBF?
For technical support, including LTC6079CDHC#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6079CDHC#PBF requirements.
6.How does Aetrix verify that LTC6079CDHC#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6079CDHC#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 LTC6079CDHC#PBF meets industry standards.
7.What is the process for return or replacement of LTC6079CDHC#PBF?
All LTC6079CDHC#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6079CDHC#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 LTC6079CDHC#PBF part is unused and in its original packaging.
Return procedure for LTC6079CDHC#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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