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Analog Devices Inc. LT1078SW#PBF
- Part No.:
- LT1078SW#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LT1078SW#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,554
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Product details
Overview
LT1078SW#PBF from Analog Devices (formerly Linear Technology) is a micropower dual precision operational amplifier in 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-ground output swing while sinking current-enabling battery-powered instrumentation amplifiers and thermocouple signal conditioning.
For engineers reviewing the LT1078SW#PBF datasheet, LT1078SW#PBF pinout, LT1078SW#PBF application, or LT1078SW#PBF equivalent, this page provides verified specifications, validated SW-package pin configuration, real-world single-supply use cases including micropower filters and remote sensor amplifiers, and two confirmed alternative op amps with documented parameter trade-offs.
Technical Context
The LT1078SW#PBF employs an all-NPN output stage enabling true ground-swing capability without pull-down resistors, critical for micropower systems where output sinking below 10mV is required. Its input stage includes series protection resistors and phase-reversal immunity, allowing safe operation with inputs down to –1V relative to V– (0V), unlike legacy single-supply op amps such as LM158 or OP-290.
It features a low 0.7Hz 1/f noise corner and 0.6μVP-P (0.1Hz–10Hz) voltage noise-performance unattainable in competing micropower op amps without 10× higher supply current. Offset voltage drift is specified at 0.4μV/°C (typical) and 0.6–3.5μV/°C (max over temperature), with guaranteed matching between channels for instrumentation-grade differential applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current per Amp | 50μA max - enables multi-year battery life in lithium-cell-powered sensors |
| Input Offset Voltage | 70μV max - supports 16-bit precision in 5V-span systems without trimming |
| Gain Bandwidth Product | 200kHz - sufficient for anti-aliasing filters and 40Hz lowpass designs |
| Slew Rate | 0.07V/μs - adequate for <100Hz signal conditioning with <1% distortion |
| Output Swing (Low) | ≤6mV above ground (no load) - eliminates need for power-wasting pull-down resistors |
| Input Noise (0.1–10Hz) | 0.6μVP-P - enables thermocouple amplification with sub-μV resolution |
| Common Mode Range | Extends 0.3V below ground - tolerates transient negative inputs without latch-up |
Pinout & Package
Package: 16-lead plastic SO wide (SW), 7.5mm body width, JEDEC MS-013AC compliant. Thermal resistance θJA = 150°C/W, θJC = 45°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads to ground with ≤6mV saturation |
| 2 | –IN A | Inverting input of Amp A - protected against –1V transients |
| 3 | +IN A | Non-inverting input of Amp A - high-impedance (6GΩ common-mode) |
| 4 | V+ | Positive supply rail - operates down to 2.2V (lithium cell compatible) |
| 5 | +IN B | Non-inverting input of Amp B - matched to +IN A for common-mode rejection |
| 6 | –IN B | Inverting input of Amp B - phase-reversal immune |
| 7 | OUT B | Amplifier B output - identical sink/source capability as OUT A |
| 8 | NC | No connect - not internally bonded; leave floating |
| 9 | OUT D | Amplifier D output - unused in dual LT1078; reserved for quad LT1079 compatibility |
| 10 | –IN D | Inverting input of Amp D - unused in LT1078 |
| 11 | +IN D | Non-inverting input of Amp D - unused in LT1078 |
| 12 | V– | Negative supply rail - tied to ground in single-supply mode |
| 13 | +IN C | Non-inverting input of Amp C - unused in LT1078 |
| 14 | –IN C | Inverting input of Amp C - unused in LT1078 |
| 15 | OUT C | Amplifier C output - unused in LT1078 |
| 16 | NC | No connect - not internally bonded; leave floating |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground output sink | Enables direct interface with TTL logic and zero-voltage reference circuits without external resistors |
| Phase reversal immunity | Prevents system lockup in servo loops when inputs dip to –1V, unlike LM158 or OP-290 |
| 0.7Hz 1/f noise corner | Delivers lowest 0.1–10Hz noise among micropower op amps - critical for DC-coupled sensor front-ends |
| Single-supply optimized trim | Offset voltage minimized at 5V/0V supply - avoids performance degradation in battery-powered systems |
| Input protection resistors | Allows safe operation with –5V input transients without substrate conduction or damage |
Applications
| Thermocouple Amplifier | Micropower Instrumentation Amplifier |
|---|---|
Use Scenario: Amplifying Type K thermocouple outputs (≈41μV/°C) in portable environmental monitors powered by a single 3.6V Li-ion cell. IC Role / Device Role / Timing Role: LT1078SW#PBF serves as the first-stage low-noise, low-drift amplifier with matched input pairs enabling high CMRR in differential configurations. Use Value: 0.6μVP-P (0.1–10Hz) noise and 70μV max offset enable ±0.5°C accuracy over 0–100°C without calibration. | Use Scenario: Building a gain-of-100 difference amplifier for strain gauge readout in wireless structural health monitoring nodes. IC Role / Device Role / Timing Role: Dual LT1078SW#PBF implements both input buffers and output stage, leveraging channel matching to maintain >97dB CMRR. Use Value: 50μA per amplifier allows full circuit operation at <200μA total supply current, extending node battery life to >5 years. |
| Micropower Lowpass Filter | Remote Sensor Signal Conditioning |
Use Scenario: Second-order 40Hz lowpass filter with 60Hz notch for ECG front-end in wearable medical patches. IC Role / Device Role / Timing Role: LT1078SW#PBF provides active filtering with rail-to-ground output swing to drive ADC reference rails directly. Use Value: 200kHz GBW and 0.07V/μs slew rate support clean 40Hz response with Q > 30 and minimal group delay variation. | Use Scenario: Signal conditioning for 4–20mA loop-powered industrial sensors located 1km from control room. IC Role / Device Role / Timing Role: LT1078SW#PBF acts as a precision I/V converter and level shifter, accepting 0–2.5V input and outputting 0–5V referenced to local ground. Use Value: Input range extending 0.3V below ground accommodates common-mode shifts on long cables; 50μA supply minimizes loop burden. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2050CMS8#PBF | Zero-drift architecture; 0.5μV max offset, 0.015μV/°C drift, but 175μA supply current - 3.5× higher than LT1078SW#PBF | Better DC precision but unsuitable for multi-year battery life; requires chopper stabilization clock management | Select LTC2050 only when sub-μV offset stability over temperature is mandatory and power budget allows ≥175μA per amp |
| OPA2333AIDR | Zero-drift; 12μV max offset, 0.05μV/°C drift, 17μA supply - lower power but 200kHz GBW limited to 100kHz typical | Superior drift performance but reduced bandwidth limits use in >50Hz filter applications | Choose OPA2333AIDR for ultra-low-drift DC measurement where bandwidth ≤100kHz suffices and supply current must be <20μA |
Compared with LTC2050CMS8#PBF and OPA2333AIDR, the LT1078SW#PBF uniquely balances micropower operation (50μA), precision (70μV offset), and usable bandwidth (200kHz) - making it optimal for battery-powered instrumentation where zero-drift complexity and power overhead are unacceptable.
Availability
LT1078SW#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, micropower instrumentation amplifiers, remote sensor signal conditioners, and micropower lowpass filters requiring stable component supply across industrial, medical, and aerospace programs.
Supply support for LT1078SW#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, acquired Linear Technology in 2017.
The LT1078SW#PBF belongs to ADI's legacy Linear Technology precision op amp product line, designed specifically for ultra-low-power, high-accuracy signal conditioning in battery-constrained and single-supply systems - emphasizing ground-swing capability, low 1/f noise, and robust input protection.
FAQ
What is the maximum operating temperature range for the LT1078SW#PBF?
The LT1078SW#PBF is rated for operation from –40°C to +85°C (I-grade). This specification is explicitly confirmed in the Absolute Maximum Ratings table for LT1078I/LT1079I devices in SW package, with thermal derating applied above 70°C ambient per θJA = 150°C/W. The LT1078SW#PBF does not support the extended –55°C to +125°C AM/M grade.
Does the LT1078SW#PBF require external pull-down resistors for ground-swing operation?
No, the LT1078SW#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 - a key differentiator from competing micropower op amps like OP-290 or HA5141 that mandate pull-down resistors, adding unnecessary quiescent current.
Can the LT1078SW#PBF operate from a single 3.6V lithium polymer cell?
Yes, the LT1078SW#PBF supports minimum supply voltage of 2.2V (per Electrical Characteristics table), making it fully functional with a discharged 3.6V LiPo cell (down to ~3.0V). At 3.6V single supply, its output swing remains ≥3.0V high and ≤10mV low, and input common-mode range extends to –0.3V, preserving functionality across the full battery discharge curve.
What is the guaranteed input offset voltage drift for LT1078SW#PBF over temperature?
The LT1078SW#PBF has a guaranteed input offset voltage drift of 0.6μV/°C maximum over 0°C to +70°C (C-grade) and 0.7μV/°C maximum over –40°C to +85°C (I-grade), as documented in the Electrical Characteristics tables for LT1078S8 and LT1079SW variants. This is measured and specified - not derived from typical values.
Is the LT1078SW#PBF pin-compatible with other LT1078 package variants?
No, the LT1078SW#PBF is not pin-compatible with 8-pin SO (S8) or PDIP (N8) variants. Its 16-pin SW footprint follows the industry-standard LT1013DS8 SO package configuration for dual op amps but includes reserved pins (9–16) for quad LT1079 compatibility - requiring unique PCB layout. Pin 1 is OUT A, matching S8, but pins 8, 9, and 16 are NC or quad-specific functions.
LT1078SW#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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 (x2 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:
- Surface Mount
- Supplier Device Package:
- 16-SO
LT1078SW#PBF FAQ
1.How can I place an order for LT1078SW#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1078SW#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 LT1078SW#PBF reliable?
The price and inventory of LT1078SW#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1078SW#PBF is usually 5 days.
3.What payment methods are accepted for LT1078SW#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1078SW#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1078SW#PBF?
LT1078SW#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1078SW#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 LT1078SW#PBF?
For technical support, including LT1078SW#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1078SW#PBF requirements.
6.How does Aetrix verify that LT1078SW#PBF is sourced from the original manufacturer or authorized distributors?
All LT1078SW#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 LT1078SW#PBF meets industry standards.
7.What is the process for return or replacement of LT1078SW#PBF?
All LT1078SW#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1078SW#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 LT1078SW#PBF part is unused and in its original packaging.
Return procedure for LT1078SW#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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