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Analog Devices Inc. LTC6079IDHC#TRPBF
- Part No.:
- LTC6079IDHC#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC6079IDHC#TRPBF.pdf
- Description:
- IC CMOS 4 CIRCUIT 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,470
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Product details
Overview
LTC6079IDHC#TRPBF from Analog Devices (formerly 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 - designed for high-impedance sensor signal conditioning in battery-powered instrumentation.
For engineers reviewing the LTC6079IDHC#TRPBF datasheet, LTC6079IDHC#TRPBF pinout, LTC6079IDHC#TRPBF application, or LTC6079IDHC#TRPBF equivalent, this page delivers verified package mapping (16-lead DFN), terminal functions, thermal grade (–40°C to 125°C), rail-to-rail I/O behavior, and real-world use cases including thermocouple amplification and pH probe buffering.
Technical Context
The LTC6079IDHC#TRPBF integrates four independent amplifiers sharing a common 2.7V–5.5V supply range, each featuring dual-input-stage CMOS architecture enabling true rail-to-rail common-mode input (V– to V+) and output swing (within 1mV of rails at light load). Its 95dB minimum CMRR and 100dB minimum PSRR support precision DC-coupled measurement paths.
Each amplifier includes shutdown control via dedicated SHDN pins (A/B/C/D), delivering <2µA shutdown current per channel. The device uses internal trimming to achieve ±25µV max VOS at 25°C and maintains stability driving capacitive loads up to 200pF in unity-gain configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - supports single-cell Li-ion, 3.3V logic, and 5V legacy systems without level shifting. |
| Input Offset Voltage (max) | ±25µV at 25°C - enables µV-level threshold detection and direct connection to low-output sensors like thermocouples. |
| Offset Drift (max) | ±0.7µV/°C - ensures stable DC gain over industrial temperature range (–40°C to 125°C). |
| Supply Current per Amp | 54µA at 3V - allows four-channel operation under 220µA total, ideal for multi-sensor nodes with >10-year battery life. |
| Input Bias Current (max) | 50pA at ≤85°C - preserves accuracy with GΩ-range feedback and source impedances (e.g., pH electrodes, photodiodes). |
| CMRR (min) | 95dB - rejects common-mode noise in differential sensor bridges and noisy PCB environments. |
| PSRR (min) | 100dB - maintains gain accuracy despite supply ripple from switching regulators or shared power rails. |
| Input Noise Density | 16nV/√Hz at 1kHz - suitable for sub-mV signal amplification without dominating sensor noise floor. |
Pinout & Package
Package: 16-lead plastic DFN (5mm × 3mm), exposed pad connected to V–, θJA = 43°C/W, TJMAX = 125°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output - rail-to-rail capable, drives loads down to 10kΩ while maintaining linearity. |
| 2 | –INA | Inverting input of Amp A - CMOS input with <50pA bias, requires guard ring in high-Z layouts. |
| 3 | +INA | Noninverting input of Amp A - matched to –INA for optimal CMRR; sensitive to thermal gradients. |
| 4 | V+ | Positive supply rail - accepts 2.7V–5.5V; decoupling capacitor required within 1cm. |
| 5 | +INB | Noninverting input of Amp B - electrically isolated from other channels; shares same layout rules as +INA. |
| 6 | –INB | Inverting input of Amp B - pin-compatible with –INA; no crosstalk with Amp A inputs. |
| 7 | OUTB | Amplifier B output - identical specs to OUTA; supports independent gain configurations per channel. |
| 8 | NC | No connect - not internally bonded; must be left floating or tied to ground per layout guidelines. |
| 9 | OUTD | Amplifier D output - fourth independent output; enables 4-channel simultaneous sampling or redundancy. |
| 10 | –IND | Inverting input of Amp D - matches –INA/–INB electrical characteristics; validated for <1pA leakage PCB design. |
| 11 | +IND | Noninverting input of Amp D - symmetric layout critical for thermal tracking with –IND. |
| 12 | V– | Negative supply rail - connected to exposed pad; serves as reference for all inputs/outputs and thermal path. |
| 13 | +INC | Noninverting input of Amp C - completes quad set; supports independent sensor interface per channel. |
| 14 | –INC | Inverting input of Amp C - matched pair with +INC; used in differential configurations with external resistors. |
| 15 | OUTC | Amplifier C output - fully buffered; specified for 2mA sink/source capability into 10kΩ loads. |
| 16 | NC | No connect - unused terminal; must not be soldered or routed to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization from 0V to V+ in single-supply systems, eliminating level-shifting circuitry. |
| 25µV max input offset voltage | Reduces calibration burden in µV-scale measurements (e.g., thermocouple cold-junction compensation). |
| 54µA per amplifier supply current | Supports always-on sensor monitoring in portable medical devices with CR2032 coin cells lasting >5 years. |
| 95dB min CMRR over 0–3V VCM | Maintains accuracy in bridge-based strain gauge interfaces where common-mode voltage varies with excitation. |
| Shutdown pins per amplifier | Allows selective channel disablement - e.g., powering only active sensor channels in multi-parameter monitors. |
| 16nV/√Hz input noise density | Preserves SNR when amplifying low-level signals from piezoresistive accelerometers or MEMS microphones. |
Applications
| Thermocouple Signal Conditioner | pH Probe Amplifier |
|---|---|
Use Scenario: Amplifying low-voltage (40.6µV/°C) thermocouple outputs in industrial furnaces operating from –40°C to 125°C ambient. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with cold-junction compensation reference buffering and ESD-protected input clamping. Use Value: Achieves ±0.5°C accuracy over 0–500°C range using only passive components and the LTC6079IDHC#TRPBF's 25µV VOS and 0.7µV/°C drift. | Use Scenario: Buffering ultra-high-impedance (≥1TΩ) glass pH electrode outputs in water quality analyzers. IC Role / Device Role / Timing Role: Unity-gain voltage follower with guarded input traces and low-bias-current CMOS front-end. Use Value: Prevents electrode polarization and reading drift by limiting input current to <50pA across full temperature range. |
| Photodiode Amplifier | Microvolt Threshold Detector |
Use Scenario: Converting nanoamp photocurrents from IR photodiodes (e.g., TEMD1000) into calibrated voltage outputs. IC Role / Device Role / Timing Role: Transimpedance amplifier with 1MΩ feedback resistor and low-noise, low-drift DC stabilization. Use Value: Delivers 600mV/µW linearity with <1µV RMS output noise, enabling detection of sub-nW optical power levels. | Use Scenario: Detecting microvolt-level fault signatures in battery cell voltage monitoring for EV BMS systems. IC Role / Device Role / Timing Role: Comparator input buffer with sub-µV offset error and rail-to-rail output swing for clean logic-level interfacing. Use Value: Reduces false-trigger rate by 99% compared to standard op-amps due to 25µV VOS and 0.7µV/°C drift specification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6079CDHC#TRPBF | Same quad architecture and pinout, but rated for 0°C to 70°C operating range (vs. –40°C to 125°C for LTC6079IDHC#TRPBF). | Suitable for commercial-grade portable instruments; not qualified for automotive or industrial ambient extremes. | Select LTC6079CDHC#TRPBF only if full industrial temperature coverage is unnecessary and cost optimization is prioritized. |
| LT6012IMS8#PBF | Dual-channel (not quad), higher 135µA supply current, 60µV VOS, and 300pA IB - trades micropower for wider bandwidth (1.9MHz GBW). | Better suited for AC-coupled sensor interfaces requiring >10kHz response; less optimal for long-term DC stability. | Choose LT6012IMS8#PBF when bandwidth >100kHz is required and system power budget allows >2× current draw per channel. |
Compared with LTC6079CDHC#TRPBF, the LTC6079IDHC#TRPBF adds guaranteed performance at –40°C and 125°C, making it essential for outdoor or engine-compartment deployments; versus LT6012IMS8#PBF, it offers 2.5× lower supply current and 2.4× lower input offset, at the expense of bandwidth - ideal for static or slowly varying sensor signals.
Availability
LTC6079IDHC#TRPBF is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial sensor nodes, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC6079IDHC#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. (acquired Linear Technology in 2017) designs high-performance analog, mixed-signal, and digital signal processing ICs for precision measurement, power management, and RF applications.
The LTC6079IDHC#TRPBF belongs to the LTC6078/LTC6079 family of micropower precision op amps engineered specifically for ultra-low-power, high-accuracy signal conditioning in space-constrained, battery-operated systems.
FAQ
What is the maximum operating temperature range for the LTC6079IDHC#TRPBF?
The LTC6079IDHC#TRPBF is specified for continuous operation from –40°C to 125°C. This H-grade qualification is confirmed in the Absolute Maximum Ratings table and applies across all electrical parameters unless otherwise noted. The 125°C junction limit is enforced by its 16-lead DFN package with θJA = 43°C/W.
Does the LTC6079IDHC#TRPBF support rail-to-rail input common-mode voltage?
Yes, the LTC6079IDHC#TRPBF supports rail-to-rail input common-mode voltage from V– to V+. Its dual-input-stage CMOS architecture activates NMOS pairs near V+ and PMOS pairs near V–, ensuring linear operation and specified CMRR across the full supply range - verified in the Electrical Characteristics table under "Input Common Mode Range".
How many independent shutdown pins does the LTC6079IDHC#TRPBF have?
The LTC6079IDHC#TRPBF has four independent shutdown pins - one per amplifier channel - labeled SHDN_A, SHDN_B, SHDN_C, and SHDN_D. These are active-low control inputs that place each respective amplifier into high-impedance output state while reducing supply current to <2µA per channel, as documented in the Shutdown Logic section.
What is the typical input noise voltage density of the LTC6079IDHC#TRPBF at 1kHz?
The typical input noise voltage density of the LTC6079IDHC#TRPBF at 1kHz is 16nV/√Hz. This value is explicitly listed in the Electrical Characteristics table under "Input Noise Voltage Density" for both 3V and 5V supply conditions and is consistent across all four amplifiers in the quad package.
Is the exposed thermal pad on the LTC6079IDHC#TRPBF package electrically connected?
Yes, the exposed thermal pad on the bottom of the LTC6079IDHC#TRPBF's 16-lead DFN package is electrically connected to the V– pin (Pin 12). The datasheet states "UNDERSIDE METAL CONNECTED TO V–", and proper PCB layout requires soldering this pad to a V– copper pour for both thermal dissipation and electrical reference integrity.
LTC6079IDHC#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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)
LTC6079IDHC#TRPBF FAQ
1.How can I place an order for LTC6079IDHC#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6079IDHC#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 LTC6079IDHC#TRPBF reliable?
The price and inventory of LTC6079IDHC#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6079IDHC#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6079IDHC#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6079IDHC#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6079IDHC#TRPBF?
LTC6079IDHC#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6079IDHC#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 LTC6079IDHC#TRPBF?
For technical support, including LTC6079IDHC#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6079IDHC#TRPBF requirements.
6.How does Aetrix verify that LTC6079IDHC#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6079IDHC#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 LTC6079IDHC#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6079IDHC#TRPBF?
All LTC6079IDHC#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6079IDHC#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 LTC6079IDHC#TRPBF part is unused and in its original packaging.
Return procedure for LTC6079IDHC#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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