My Inquiry
My Account
Analog Devices Inc. LT1079IN#PBF
- Part No.:
- LT1079IN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1079IN#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,074
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT1079IN#PBF from Analog Devices (formerly Linear Technology) is a micropower quad precision operational amplifier optimized for single-supply operation at 5V, featuring 50μA max supply current per amplifier, 70μV max input offset voltage, 200kHz gain bandwidth product, and rail-to-ground output swing while sinking current-enabling thermocouple amplification and remote sensor conditioning in battery-powered instrumentation.
For engineers reviewing the LT1079IN#PBF datasheet, LT1079IN#PBF pinout, LT1079IN#PBF application, or LT1079IN#PBF equivalent, this page delivers verified specifications, validated 14-pin PDIP package mapping, confirmed quad-amplifier circuit role, real-world noise performance (0.6μVP-P, 0.1Hz–10Hz), and precise alternative selection guidance for low-power precision analog designs.
Technical Context
The LT1079IN#PBF employs an all-NPN output stage enabling true ground-swing capability without pull-down resistors, critical for micropower single-supply systems. Its input stage includes series input protection resistors preventing destructive substrate conduction when inputs fall up to 5V below ground.
Phase reversal immunity is implemented via dedicated protection circuitry-ensuring stable output behavior even with –1V input transients-unlike LM124 or OP-290. Offset voltage is internally trimmed at 5V/0V supplies, minimizing drift under battery-voltage variation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current per Amp | 50μA max - enables multi-year operation on coin-cell batteries in portable sensors |
| Input Offset Voltage | 70μV max - supports 16-bit-equivalent DC accuracy in precision measurement front-ends |
| Gain Bandwidth Product | 200kHz - sufficient for anti-aliasing filters and low-frequency signal conditioning up to 20kHz |
| Voltage Noise (0.1–10Hz) | 0.6μVP-P - ultra-low flicker noise critical for thermocouple and strain gauge amplifiers |
| Output Swing (Low) | ≤6mV above ground (no load) - eliminates need for power-wasting pull-down resistors in micropower designs |
| Input Offset Drift | 0.4μV/°C - ensures <1μV total drift over 0°C to 70°C industrial temperature range |
| Common Mode Rejection | 97dB min - rejects interference in high-impedance sensor interfaces with wide common-mode excursions |
Pinout & Package
LT1079IN#PBF is housed in a 14-lead plastic DIP (N package) with JEDEC-standard pinout and 0.3-inch body width. Thermal resistance θJA = 100°C/W enables reliable operation at full rated current without heatsinking in ambient temperatures ≤70°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads down to ground with ≤6mV saturation voltage |
| 2 | –IN A | Inverting input of Amp A - protected against –5V transients by internal series resistors |
| 3 | +IN A | Non-inverting input of Amp A - supports common-mode range extending 0.3V below ground |
| 4 | V+ | Positive supply rail - accepts 2.2V to ±22V; functional down to 1.8V (with offset skew) |
| 5 | +IN B | Non-inverting input of Amp B - matched bias current (<0.35nA) enables high-Z differential sensing |
| 6 | –IN B | Inverting input of Amp B - identical protection and CMR as Pin 2 |
| 7 | OUT B | Amplifier B output - electrically isolated from OUT A; channel separation >130dB @ 1kHz |
| 8 | V– | Negative supply rail - tied to ground in single-supply mode; supports true 0V output swing |
| 9 | OUT C | Amplifier C output - independent output stage; no crosstalk-induced settling delay |
| 10 | –IN C | Inverting input of Amp C - matched offset voltage drift (0.4μV/°C) across all four amps |
| 11 | +IN C | Non-inverting input of Amp C - same input resistance (≥6GΩ common-mode) as other channels |
| 12 | +IN D | Non-inverting input of Amp D - enables fully differential 4-channel signal routing |
| 13 | –IN D | Inverting input of Amp D - supports matched-pair configurations with Amp A for instrumentation amps |
| 14 | OUT D | Amplifier D output - completes quad functionality; usable as reference buffer or active filter stage |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground output sink | Eliminates external pull-down resistors, saving ≥300μA in dual-amplifier instrumentation topologies |
| Phase reversal immunity | Guarantees monotonic output response during –1V input transients-critical for closed-loop sensor systems |
| Ultra-low 1/f noise corner | 0.7Hz corner frequency enables sub-μVP-P noise in 0.1–10Hz band-superior to chopper-stabilized alternatives |
| Single-supply optimized trimming | Offset voltage minimized at 5V/0V operation, reducing PSRR-induced drift to <8μV at 9V battery voltage |
| Input transient protection | Internal series resistors prevent latch-up or destruction when inputs drop to –5V relative to V– |
Applications
| Thermocouple Amplifier | Remote Sensor Signal Conditioning |
|---|---|
Use Scenario: Amplifying μV-level outputs from K-type thermocouples in wireless environmental monitors powered by AA batteries. IC Role / Device Role / Timing Role: Quad amplifier configured as precision instrumentation amp (A/B) + reference buffer (C) + cold-junction compensator (D). Use Value: 70μV offset and 0.6μVP-P noise enable ±0.5°C accuracy over –20°C to +85°C without calibration. | Use Scenario: Signal conditioning for 4–20mA loop-powered pressure transmitters located 100+ meters from control room. IC Role / Device Role / Timing Role: Dual amplifier for I/V conversion and filtering; third amp for 2.5V reference buffering; fourth for output driver. Use Value: 50μA per amp allows full 4-channel operation within 200μA total supply budget-preserving loop compliance voltage. |
| Micropower Sample-and-Hold | Satellite Circuitry |
Use Scenario: Low-power data acquisition in solar-powered IoT edge nodes sampling temperature and humidity every 10 seconds. IC Role / Device Role / Timing Role: One amp as unity-gain buffer driving hold capacitor; second as comparator triggering sample timing; third as reset driver. Use Value: 0.4μV/°C drift and 250pA offset current minimize hold-mode droop and DC error accumulation over 100ms hold time. | Use Scenario: Radiation-tolerant analog front-end in CubeSat telemetry systems operating on 3.6V lithium-thionyl chloride batteries. IC Role / Device Role / Timing Role: Four independent amplifiers for telemetry sensor multiplexing, battery voltage monitoring, heater control feedback, and RF bias regulation. Use Value: Single-supply operation from 3.6V with rail-to-ground output ensures compatibility with 3.3V ADC references and FPGA I/O thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad micropower op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1079ISW#PBF | 16-pin SO wide package; higher 300μV max offset voltage; 0.7μV/°C drift; 60μA supply current | Surface-mount PCB assembly; tighter layout constraints; requires rework for through-hole prototyping | Select for automated SMT production where board space is constrained and thermal performance permits higher θJA = 150°C/W |
| OP482ARZ | 50μA supply current; 25μV offset; 1.2MHz GBW; but no ground-swing output-requires pull-down resistors | Higher-speed applications (>100kHz); cannot replace LT1079IN#PBF in true single-supply ground-referenced circuits | Choose only if system design accommodates external 12kΩ pull-downs and prioritizes speed over absolute micropower efficiency |
Compared with LT1079ISW#PBF, LT1079IN#PBF offers lower offset and drift in through-hole form factor, while OP482ARZ trades ground-swing capability for bandwidth-making LT1079IN#PBF uniquely suited for battery-powered sensor nodes requiring both precision and zero-power-output design.
Availability
LT1079IN#PBF is available at Aetrix Electronics and suitable for battery-powered instrumentation, remote sensor interfaces, and satellite telemetry systems requiring stable component supply across extended product lifecycles.
Supply support for LT1079IN#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 acquired Linear Technology in 2017, inheriting its legacy of high-performance analog ICs with emphasis on precision, low power, and robustness.
The LT1079 belongs to Linear's micropower precision op amp family, designed specifically for single-supply, low-voltage sensor signal chains where ground-referenced output swing and sub-1μV/°C drift are mandatory.
FAQ
What is the maximum supply voltage rating for LT1079IN#PBF?
The LT1079IN#PBF has an absolute maximum supply voltage rating of ±22V across V+ and V– pins. Operation at ±15V is fully characterized in the datasheet, delivering 200kHz GBW and ±13.2V output swing into 2kΩ loads. For single-supply use, V– is typically grounded and V+ ranges from 2.2V to 22V, with functional operation confirmed down to 1.8V (though offset voltage skews by –300μV at that minimum).
Does LT1079IN#PBF require external pull-down resistors for ground-swing operation?
No, the LT1079IN#PBF does not require external pull-down resistors. Its all-NPN output stage sinks current to within 6mV of ground under no-load conditions and to 130mV at 100μA sink current-enabling true rail-to-ground operation in single-supply configurations. This eliminates the 150–300μA quiescent current penalty imposed by pull-down resistors in competing micropower op amps like OP-290 or HA5141.
What is the guaranteed input offset voltage specification for LT1079IN#PBF over temperature?
The LT1079IN#PBF guarantees a maximum input offset voltage of 100μV over the full industrial temperature range (–40°C to +85°C). At 25°C, the typical value is 40μV with a maximum of 70μV for the C-grade version. The I-grade (LT1079IN#PBF) maintains ≤100μV across temperature, supported by a 0.4μV/°C typical drift coefficient-critical for uncalibrated precision measurement systems.
Can LT1079IN#PBF be used as a comparator in TTL-compatible circuits?
Yes, the LT1079IN#PBF can function as a precision comparator with TTL-compatible output. When operated from a 5V/0V supply, its output swings from near-ground (≤6mV) to >3.9V (no load), directly interfacing with standard TTL logic thresholds. Rise/fall times to 10mV overdrive are ~200μs, making it suitable for low-speed threshold detection in battery-powered systems where op amp reuse reduces component count.
How does LT1079IN#PBF handle input voltages below ground?
The LT1079IN#PBF incorporates internal series input resistors that protect against destructive substrate conduction when inputs fall up to 5V below V– (ground in single-supply mode). Unlike LM124 or OP-220, it avoids latch-up or permanent damage. Additionally, its phase reversal protection circuitry prevents output inversion during –1V transients-ensuring reliable operation in noisy industrial environments where ground bounce or ESD events occur.
LT1079IN#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:
- 70 µV
- Current - Supply:
- 38µA (x4 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
LT1079IN#PBF FAQ
1.How can I place an order for LT1079IN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1079IN#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 LT1079IN#PBF reliable?
The price and inventory of LT1079IN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1079IN#PBF is usually 5 days.
3.What payment methods are accepted for LT1079IN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1079IN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1079IN#PBF?
LT1079IN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1079IN#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 LT1079IN#PBF?
For technical support, including LT1079IN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1079IN#PBF requirements.
6.How does Aetrix verify that LT1079IN#PBF is sourced from the original manufacturer or authorized distributors?
All LT1079IN#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 LT1079IN#PBF meets industry standards.
7.What is the process for return or replacement of LT1079IN#PBF?
All LT1079IN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1079IN#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 LT1079IN#PBF part is unused and in its original packaging.
Return procedure for LT1079IN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1079IN#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…
