My Inquiry
My Account
Analog Devices Inc. LT1079SW#TRPBF
- Part No.:
- LT1079SW#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LT1079SW#TRPBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,543
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT1079SW#TRPBF from Analog Devices (formerly Linear Technology) is a micropower quad precision operational amplifier in a 16-lead plastic SO wide (SW) package, optimized for single-supply operation at 5V. It delivers 70μV max input offset voltage, 50μA max supply current per amplifier, 200kHz gain bandwidth, 0.07V/μs slew rate, and rail-to-rail output sinking capability down to ≤1mV above ground-enabling high-accuracy signal conditioning in battery-powered sensor front-ends.
For engineers reviewing the LT1079SW#TRPBF datasheet, LT1079SW#TRPBF pinout, LT1079SW#TRPBF application, or LT1079SW#TRPBF equivalent, key selection criteria include its guaranteed 90–480μV offset voltage over temperature (0°C to 70°C), 0.7μV/°C max drift in SW package, 0.1Hz–10Hz voltage noise of 0.6μVP-P, and ability to operate from as low as 2.2V supply while maintaining precision performance without pull-down resistors.
Technical Context
The LT1079SW#TRPBF employs an all-NPN output stage enabling true ground-sinking operation with no external pull-down resistors required. Its input stage incorporates phase-reversal protection, allowing inputs to swing up to –1V below ground without output inversion-a critical feature for transient-tolerant single-supply instrumentation.
Designed specifically for micropower precision, it achieves 2×–10× better noise, speed, and drive capability than prior micropower op amps while maintaining sub-100μA quiescent current per channel. The 0.7Hz 1/f voltage noise corner enables ultra-low-frequency stability essential for thermocouple and RTD amplification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current per Amp | 40–55 μA @ 0°C–70°C - enables multi-channel sensing on coin-cell or Li-ion batteries for >1-year runtime. |
| Input Offset Voltage | 90–480 μV max @ 0°C–70°C - supports 16-bit+ resolution in DC-coupled sensor interfaces without trimming. |
| Offset Voltage Drift | 0.7–4.0 μV/°C max - ensures <100μV total drift over industrial temperature range, critical for unattended remote sensors. |
| Gain Bandwidth Product | 200 kHz - sufficient for anti-aliasing filters, 60Hz notch designs, and low-frequency transducer signal chains. |
| 0.1Hz–10Hz Voltage Noise | 0.6 μVP-P - enables sub-μV-level resolution in thermocouple and strain gauge amplifiers. |
| Output Low Voltage | ≤130 mV @ 100μA sink - eliminates need for power-wasting pull-down resistors in single-supply comparators and I/V converters. |
| Common Mode Range | Extends to V– – 0.3V - allows direct interfacing with sub-ground transducer outputs or ESD-protected inputs. |
Pinout & Package
LT1079SW#TRPBF is housed in a 16-lead plastic SO wide (SW) package (JEDEC MS-013AC), 7.5mm body width, 1.27mm pitch, with exposed pad not electrically connected. Thermal resistance θJA = 150°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - capable of sourcing/sinking ±5mA, swings to within 1mV of ground when sinking. |
| 2 | –IN A | Inverting input of Amp A - protected against phase reversal down to –1V below V–. |
| 3 | +IN A | Non-inverting input of Amp A - input bias current ≤9nA, common-mode range includes V–. |
| 4 | V+ | Positive supply rail - operates from 2.2V to ±22V; min 2.2V enables single Li-cell use. |
| 5 | +IN B | Non-inverting input of Amp B - matched to +IN A for differential pair applications. |
| 6 | –IN B | Inverting input of Amp B - same phase-reversal immunity and ESD protection as Pin 2. |
| 7 | OUT B | Amplifier B output - identical drive and swing specs as Pin 1. |
| 8 | NC | No connect - internal die pad; must remain floating or grounded per layout guidelines. |
| 9 | OUT D | Amplifier D output - fully independent channel with same electrical specs as Pins 1 and 7. |
| 10 | –IN D | Inverting input of Amp D - electrically isolated; no crosstalk beyond specified 130dB channel separation. |
| 11 | +IN D | Non-inverting input of Amp D - matched input characteristics support quad instrumentation topologies. |
| 12 | V– | Negative supply rail - referenced to system ground in single-supply mode; accepts 0V or negative voltage. |
| 13 | +IN C | Non-inverting input of Amp C - enables 4-channel simultaneous sampling or multi-path filtering. |
| 14 | –IN C | Inverting input of Amp C - supports active feedback networks up to 200kHz GBW. |
| 15 | OUT C | Amplifier C output - full 5mA drive capability; compatible with 10kΩ load to ground. |
| 16 | NC | No connect - internal test pad; leave unconnected per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground output sinking | Outputs swing to ≤130mV above ground while sinking 100μA - eliminates pull-down resistors, saving >300μA in dual-op-amp instrumentation amps. |
| Phase-reversal immunity | Input withstands –1V below V– without output inversion - prevents lockup in servo loops and protects against ESD-induced transients. |
| Ultra-low 0.1Hz–10Hz noise | 0.6μVP-P voltage noise - enables stable DC amplification of thermocouples and bridge sensors without 1/f noise corruption. |
| Matched quad architecture | Guaranteed ΔVOS ≤150μV between A/D and B/C pairs - supports high-CMRR 3-op-amp instrumentation amps without external trimming. |
| Single-supply optimized design | Specified at 5V/0V with VCM = 0.1V - offset trimmed at this condition, minimizing drift in battery-powered systems. |
Applications
| Thermocouple Amplifier | Micropower Instrumentation Amplifier |
|---|---|
Use Scenario: Amplifying µV-level J/K-type thermocouple outputs in portable environmental monitors with Li-ion battery power. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with cold-junction compensation interface; four channels used for simultaneous multi-zone sensing. Use Value: 0.6μVP-P low-frequency noise and 0.7μV/°C drift ensure ±0.1°C accuracy over 0–70°C without calibration. | Use Scenario: Building a 3-op-amp instrumentation amp for strain-gauge bridges in wireless structural health sensors. IC Role / Device Role / Timing Role: Dual-channel LT1079SW#TRPBF provides matched A/B amplifiers for gain-setting and reference buffer; third channel handles filtering. Use Value: Guaranteed 150μV max VOS match between A/D and B/C pairs enables >90dB CMRR without resistor trimming. |
| Remote Sensor Signal Conditioning | Battery-Powered Data Logger Front-End |
Use Scenario: Signal conditioning for 4–20mA loop-powered remote pressure transmitters with local ADC. IC Role / Device Role / Timing Role: I/V conversion and anti-aliasing filter driver; operates from 3.3V rail derived from energy-harvesting circuit. Use Value: 40–55μA supply current per amp enables 4-channel analog front-end consuming <220μA total, extending 10-year battery life. | Use Scenario: Analog signal chain in solar-powered soil moisture logger recording every 15 minutes. IC Role / Device Role / Timing Role: Quad amplifier implements programmable-gain stage, low-pass filter, reference buffer, and comparator for wake-up trigger. Use Value: Single 5V supply operation with ground-sinking outputs eliminates need for negative rail generation, reducing BOM count by 2 ICs. |
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 | 14-pin PDIP package; 100–150μV max VOS (0°C–70°C); higher θJA = 100°C/W; no SW-package-specific drift spec. | Suitable for prototyping and through-hole PCBs; lacks SW package's thermal and space advantages for compact battery devices. | Select LT1079CN only for breadboard evaluation or legacy through-hole designs where reflow compatibility is not required. |
| OP4177ARZ | Quad precision op amp; 60μV max VOS; 1.3MHz GBW; 1.2mA supply current per amp; SO-16 package; no ground-sinking guarantee. | Higher speed and lower offset, but 26× higher supply current precludes micropower use; requires pull-down resistors for ground swing. | Choose OP4177ARZ only when bandwidth >200kHz or offset <60μV is mandatory and power budget allows ≥1.2mA/amp. |
Compared with LT1079CN and OP4177ARZ, the LT1079SW#TRPBF uniquely balances micropower operation (≤55μA/amp), guaranteed ground-sinking output, and 0.6μVP-P low-frequency noise-making it irreplaceable in long-life, single-supply, ultra-low-noise sensor nodes where both precision and energy efficiency are non-negotiable.
Availability
LT1079SW#TRPBF is available at Aetrix Electronics and suitable for battery-powered instrumentation, remote sensor amplifiers, and portable medical diagnostics requiring stable component supply across extended product lifecycles.
Supply support for LT1079SW#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 LT1079SW#TRPBF belongs to ADI's legacy Linear Technology precision op amp family, engineered specifically for micropower, single-supply, high-accuracy signal conditioning in energy-constrained environments such as portable instrumentation and remote sensing.
FAQ
What is the maximum input offset voltage specification for LT1079SW#TRPBF over its operating temperature range?
The LT1079SW#TRPBF has a maximum input offset voltage of 480 μV over the 0°C to 70°C commercial temperature range, as specified in the Electrical Characteristics table for the LT1079SW grade. This value applies under 5V/0V supply conditions and includes statistical process variation across production lots.
Does LT1079SW#TRPBF require external pull-down resistors to achieve ground-swing output?
No, the LT1079SW#TRPBF does not require external pull-down resistors. Its all-NPN output stage sinks current to within ≤130 mV of ground at 100 μA load, enabling true single-supply operation in configurations like instrumentation amplifiers and comparators without added power loss or board space.
Can LT1079SW#TRPBF operate from a single 3V lithium battery?
Yes, the LT1079SW#TRPBF is fully specified for single-supply operation down to 2.2V, making it compatible with a single 3V lithium battery across its entire discharge curve (3.0V to 2.2V). Performance metrics including offset voltage, noise, and output swing remain guaranteed within datasheet limits at 2.2V.
What is the 0.1Hz to 10Hz voltage noise of LT1079SW#TRPBF, and why is it significant?
The LT1079SW#TRPBF exhibits 0.6 μVP-P voltage noise in the 0.1Hz to 10Hz band. This ultra-low flicker noise is critical for DC and near-DC applications such as thermocouple amplification and precision RTD signal conditioning, where 1/f noise dominates error budgets and directly impacts measurement resolution and stability.
Is LT1079SW#TRPBF pin-compatible with other LT1079 variants like LT1079ISW or LT1079ACN?
No, LT1079SW#TRPBF is not pin-compatible with LT1079ISW or LT1079ACN. While all share the same 16-pin SW footprint, the LT1079ISW is rated for –40°C to 85°C and has tighter offset drift (0.7 μV/°C max), whereas LT1079ACN uses a 14-pin PDIP package with different pinout. Package and temperature grade differences preclude direct substitution without layout or thermal redesign.
LT1079SW#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 80 µV
- Current - Supply:
- 39µA (x4 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
LT1079SW#TRPBF FAQ
1.How can I place an order for LT1079SW#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1079SW#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 LT1079SW#TRPBF reliable?
The price and inventory of LT1079SW#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1079SW#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1079SW#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1079SW#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1079SW#TRPBF?
LT1079SW#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1079SW#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 LT1079SW#TRPBF?
For technical support, including LT1079SW#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1079SW#TRPBF requirements.
6.How does Aetrix verify that LT1079SW#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1079SW#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 LT1079SW#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1079SW#TRPBF?
All LT1079SW#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1079SW#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 LT1079SW#TRPBF part is unused and in its original packaging.
Return procedure for LT1079SW#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1079SW#TRPBF 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…
