My Inquiry
My Account
Analog Devices Inc. LT1079ACN#PBF
- Part No.:
- LT1079ACN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1079ACN#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:117
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT1079ACN#PBF from Analog Devices (formerly Linear Technology) is a micropower quad precision operational amplifier optimized for single-supply operation at 5V, featuring 70μV max input offset voltage, 50μA max supply current per amplifier, and 200kHz gain bandwidth product. It delivers rail-to-rail output swing to ground while sinking current-eliminating need for pull-down resistors-in battery-powered instrumentation, remote sensor amplifiers, and thermocouple interfaces.
For engineers reviewing the LT1079ACN#PBF datasheet, LT1079ACN#PBF pinout, LT1079ACN#PBF application, or LT1079ACN#PBF equivalent, key selection criteria include its guaranteed 0°C to 70°C operating range, 14-pin PDIP (N package) footprint, low 0.6μVP-P (0.1Hz–10Hz) voltage noise, and ability to operate down to 2.2V supply-critical for lithium-cell and dual-NiCad systems.
Technical Context
The LT1079ACN#PBF employs an all-NPN output stage enabling true ground-swing capability when sinking current, with no external pull-down resistors required. Its input stage includes series protection resistors that prevent destructive substrate conduction and phase reversal even when inputs fall 5V below ground.
It features internally trimmed offset voltage optimized at 5V/0V supply conditions, achieving 70μV max (AC grade) and 0.4μV/°C typical drift. The 0.7Hz 1/f noise corner yields ultra-low 0.1Hz–10Hz noise performance unmatched by prior micropower op amps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current per Amp | 50μA max - enables multi-year battery life in portable sensors |
| Input Offset Voltage | 70μV max - supports high-gain DC-coupled signal chains without trimming |
| Gain Bandwidth Product | 200kHz - sufficient for anti-aliasing filters and sensor conditioning up to ~20kHz |
| Output Swing to Ground | ≤6mV low-level output - eliminates need for power-wasting pull-down resistors |
| 0.1Hz–10Hz Voltage Noise | 0.6μVP-P - critical for thermocouple and RTD amplification where low-frequency noise dominates |
| Common Mode Range | Includes ground and extends 3.5V above V– - supports direct interfacing to transducers referenced to system ground |
| Operating Temperature | 0°C to 70°C - qualified for commercial-grade embedded instrumentation |
Pinout & Package
LT1079ACN#PBF is housed in a 14-pin plastic DIP (N package), with standard industry pinout for quad op amps. Thermal resistance θJA = 100°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to ±5mA, swings within 6mV of ground |
| 2 | –IN A | Inverting input of Amp A - protected against –5V overvoltage, no phase reversal |
| 3 | +IN A | Non-inverting input of Amp A - bias current ≤0.25nA, supports high-Z sources |
| 4 | V+ | Positive supply rail - accepts 2.2V to ±22V; operates from single 3V or 5V |
| 5 | +IN B | Non-inverting input of Amp B - matched to Amp A for instrumentation amplifier topologies |
| 6 | –IN B | Inverting input of Amp B - identical protection and matching as Pin 2 |
| 7 | OUT B | Amplifier B output - electrically isolated from OUT A; shares same drive capability |
| 8 | V– | Negative supply rail - tied to ground in single-supply mode; handles –15V in dual mode |
| 9 | OUT C | Amplifier C output - independent channel; same specs as OUT A/B |
| 10 | –IN C | Inverting input of Amp C - fully specified across temperature for matched performance |
| 11 | +IN C | Non-inverting input of Amp C - low input bias current preserves source impedance integrity |
| 12 | +IN D | Non-inverting input of Amp D - enables 4-channel signal conditioning on one IC |
| 13 | –IN D | Inverting input of Amp D - supports differential configurations with Amp C |
| 14 | OUT D | Amplifier D output - completes quad functionality; no crosstalk degradation beyond 130dB |
Key Features
| Feature | Design Value |
|---|---|
| Ground-swing output stage | Eliminates external pull-down resistors, saving >300μA in instrumentation amplifiers |
| Input overvoltage protection | Withstands –5V input without latch-up or phase reversal, enabling robust sensor interfacing |
| Low 1/f noise corner | 0.7Hz corner frequency ensures minimal drift and error in DC-coupled, low-frequency measurement |
| Matched amplifier pairs | A/B and C/D channels exhibit ≤110μV offset mismatch (98% yield), ideal for difference amplifiers |
| Single-supply optimized trim | Offset voltage minimized at 5V/0V - avoids performance penalty when using lithium or Ni-Cad batteries |
Applications
| Thermocouple Amplifier | Micropower Instrumentation Amplifier |
|---|---|
Use Scenario: Amplifying μV-level thermocouple outputs in portable data loggers powered by two AA cells. IC Role / Device Role / Timing Role: LT1079ACN#PBF serves as the first-stage low-noise, low-drift amplifier with matched input pairs for cold-junction compensation. Use Value: 0.6μVP-P (0.1Hz–10Hz) noise and 70μV max offset enable <0.1°C resolution without chopper stabilization. | Use Scenario: Building a 3-op-amp instrumentation amplifier for strain gauge readout in wireless sensor nodes. IC Role / Device Role / Timing Role: Two LT1079ACN#PBF amplifiers form matched input buffers; third provides gain-setting stage. Use Value: Channel-to-channel offset match ≤110μV (98% yield) minimizes common-mode error, preserving CMRR >94dB. |
| Remote Sensor Signal Conditioning | Battery-Powered RTD Interface |
Use Scenario: Signal conditioning for 4–20mA loop-powered remote pressure sensors with local microcontroller ADC. IC Role / Device Role / Timing Role: LT1079ACN#PBF configures as precision I/V converter and filter driver in 5V single-supply system. Use Value: 50μA per amplifier allows full quad operation under 200μA total, extending 2xAA battery life to >5 years. | Use Scenario: Platinum RTD (PT100) linearization and amplification in handheld medical thermometers. IC Role / Device Role / Timing Role: LT1079ACN#PBF implements curvature correction network and buffer for ratiometric ADC reference. Use Value: 0.4μV/°C typical offset drift ensures <0.05°C error over 0°C–70°C operating range without calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1079CN#PBF | Same specs but rated for 0°C to 70°C commercial temp range; no AC-grade screening for offset voltage (100μV max vs. 70μV) | Suitable for cost-sensitive industrial controls where tighter offset isn't required | Select LT1079ACN#PBF when guaranteed 70μV max offset is mandatory for high-accuracy DC gain stages |
| OP484ESZ | Higher supply current (125μA/amp), wider GBW (4.25MHz), but higher 0.1Hz–10Hz noise (1.2μVP-P) | Better for AC-coupled, higher-speed applications like active filters; not optimal for ultra-low-power DC sensing | Choose OP484ESZ only if speed >200kHz is needed and battery life is secondary to bandwidth |
Compared with LT1079CN#PBF, the LT1079ACN#PBF guarantees tighter offset voltage for precision DC signal chains; compared with OP484ESZ, it trades bandwidth for 2.5× lower quiescent current and half the low-frequency noise-making it superior for micropower, low-drift sensor front-ends.
Availability
LT1079ACN#PBF is available at Aetrix Electronics and suitable for battery-powered instrumentation, remote sensor amplifiers, and thermocouple interfaces requiring stable component supply across long production lifecycles.
Supply support for LT1079ACN#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, serving industrial, automotive, communications, and healthcare markets.
The LT1079ACN#PBF belongs to ADI's legacy Linear Technology precision op amp portfolio, designed specifically for ultra-low-power, high-accuracy signal conditioning in energy-constrained environments such as portable medical devices and remote environmental monitors.
FAQ
What is the maximum supply voltage rating for the LT1079ACN#PBF?
The LT1079ACN#PBF has an absolute maximum supply voltage rating of ±22V across V+ and V– pins. It operates reliably from single supplies as low as 2.2V (e.g., one lithium cell) up to 5V, or dual supplies including ±15V. Operation outside these limits risks permanent damage per Absolute Maximum Ratings.
Does the LT1079ACN#PBF require external pull-down resistors for ground-referenced output operation?
No, the LT1079ACN#PBF does not require external pull-down resistors. Its all-NPN output stage sinks current and swings to within 6mV of ground under load, eliminating the 150–300μA quiescent current penalty imposed by pull-down resistors in competing micropower op amps like the OP-290 or OP-490.
What is the guaranteed input offset voltage specification for the LT1079ACN#PBF over temperature?
The LT1079ACN#PBF guarantees a maximum input offset voltage of 70μV at TA = 25°C and 180μV over its full 0°C to 70°C operating range. Its typical offset voltage drift is 0.4μV/°C, resulting in worst-case drift of ≤1.8μV/°C per the datasheet's AC-grade specifications.
Can the LT1079ACN#PBF be used as a comparator in single-supply systems?
Yes, the LT1079ACN#PBF can function as a precision comparator in single-supply systems. Its rail-to-ground output swing, fast 0.07V/μs slew rate, and TTL-compatible output levels (0–5V) make it suitable for low-overdrive (<10mV), low-power threshold detection-especially where precision offset and low noise are critical, unlike dedicated comparators.
How does the LT1079ACN#PBF handle input voltages below ground?
Unlike legacy single-supply op amps (e.g., LM158), the LT1079ACN#PBF incorporates series input protection resistors that prevent destructive substrate conduction and eliminate phase reversal-even when inputs fall as far as –5V below ground. This enables robust interfacing with transients or bipolar sensor outputs without external clamping.
LT1079ACN#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.1V/µs
- Gain Bandwidth Product:
- 200 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 6 nA
- Voltage - Input Offset:
- 30 µV
- Current - Supply:
- 38µA (x4 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
LT1079ACN#PBF FAQ
1.How can I place an order for LT1079ACN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1079ACN#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 LT1079ACN#PBF reliable?
The price and inventory of LT1079ACN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1079ACN#PBF is usually 5 days.
3.What payment methods are accepted for LT1079ACN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1079ACN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1079ACN#PBF?
LT1079ACN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1079ACN#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 LT1079ACN#PBF?
For technical support, including LT1079ACN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1079ACN#PBF requirements.
6.How does Aetrix verify that LT1079ACN#PBF is sourced from the original manufacturer or authorized distributors?
All LT1079ACN#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 LT1079ACN#PBF meets industry standards.
7.What is the process for return or replacement of LT1079ACN#PBF?
All LT1079ACN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1079ACN#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 LT1079ACN#PBF part is unused and in its original packaging.
Return procedure for LT1079ACN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1079ACN#PBF Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
