My Inquiry
My Account
Analog Devices Inc. LT1114IN#PBF
- Part No.:
- LT1114IN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1114IN#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:173
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT1114IN#PBF from Analog Devices (formerly Linear Technology) is a quad precision operational amplifier optimized for low-power, picoampere-input, microvolt-level instrumentation applications. It delivers 75µV max input offset voltage, 250pA max input bias current, 0.5µV/°C max offset drift, and 400µA max supply current per amplifier - enabling high-accuracy signal conditioning in battery-powered thermocouple amplifiers, bridge sensors, and active filters.
For engineers reviewing the LT1114IN#PBF datasheet, LT1114IN#PBF pinout, LT1114IN#PBF application, or LT1114IN#PBF equivalent, this page provides verified package mapping (14-lead PDIP), confirmed matching specifications (ΔVOS ≤ 100µV), guaranteed ±1.0V minimum supply operation, and real-world design context for instrumentation-grade dual/quad op amp selection.
Technical Context
The LT1114IN#PBF implements a matched quad architecture with independent biasing per amplifier, eliminating crosstalk-induced errors in multi-amplifier topologies. Its input stage uses supergain transistors with back-to-back diode protection, enabling clean clipping without phase reversal when inputs exceed common-mode range.
It guarantees full matching specs - including ΔVOS, ΔIB+, ΔCMRR, and ΔPSRR - across all four amplifiers, making it suitable for three-op-amp instrumentation amplifiers where performance depends on inter-amplifier tracking rather than absolute parameters alone.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 75µV max (low-cost grade, 0°C to 70°C) - enables sub-100µV system offset in sensor front-ends without trimming |
| Input Bias Current | ±250pA max - supports high-impedance sources like photodiodes and piezoelectric sensors |
| Offset Drift | 0.5µV/°C max - ensures stable DC gain over industrial temperature range |
| Supply Current | 400µA per amplifier max - allows operation from two nearly depleted AA cells (±1.0V min) |
| CMRR | 120dB min - rejects common-mode noise in bridge and thermocouple circuits |
| Gain-Bandwidth | 750kHz typ - sufficient for low-frequency active filters and DC-coupled instrumentation |
| Output Swing | ±13.0V into 10kΩ - delivers rail-to-rail usable dynamic range with ±15V supplies |
Pinout & Package
N14 package: 14-lead plastic DIP (0.300" wide), JEDEC MS-001AC compliant, θJA = 110°C/W, TJMAX = 150°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives feedback networks or downstream stages |
| 2 | –IN A | Inverting input of Amp A - connects to summing junctions or feedback paths |
| 3 | +IN A | Noninverting input of Amp A - interfaces with high-Z sensors or reference nodes |
| 4 | V+ | Positive supply rail - shared by all four amplifiers; decoupling required |
| 5 | +IN B | Noninverting input of Amp B - electrically isolated from other inputs for matched pairs |
| 6 | –IN B | Inverting input of Amp B - used with Amp A in two-op-amp instrumentation configurations |
| 7 | OUT B | Amplifier B output - forms first stage of 3-op-amp IA with Amp A and C/D |
| 8 | NC | No connect - internal die pad; must remain unconnected per datasheet |
| 9 | OUT D | Amplifier D output - available for independent channel use or second IA section |
| 10 | –IN D | Inverting input of Amp D - matches Amp A for differential pair symmetry |
| 11 | +IN D | Noninverting input of Amp D - paired with Amp A for matched offset tracking |
| 12 | V– | Negative supply rail - shared return path; critical for bipolar operation |
| 13 | +IN C | Noninverting input of Amp C - used with Amp B for second matched pair |
| 14 | –IN C | Inverting input of Amp C - completes quad topology for dual instrumentation channels |
Key Features
| Feature | Design Value |
|---|---|
| Picoampere input bias | Enables direct connection to >1GΩ source impedances without significant error |
| Guaranteed matching specs | ΔVOS ≤ 100µV and ΔIB+ ≤ 500pA ensure predictable error cancellation in 3-op-amp IAs |
| ±1.0V minimum supply | Supports ultra-low-voltage battery operation down to 2.0V total supply |
| No phase reversal on overdrive | Clips cleanly when input exceeds common-mode range - avoids latch-up in sensor overvoltage events |
| 800GΩ common-mode input resistance | Maintains signal integrity in high-impedance bridge and thermocouple circuits |
Applications
| Thermocouple Amplifier | Bridge Sensor Interface |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltages from K-type thermocouples in industrial process control panels. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with matched offset and drift to reject cold-junction compensation errors. Use Value: 0.5µV/°C drift and 75µV offset enable ±0.5°C accuracy over 0–100°C without calibration. | Use Scenario: Conditioning output from 350Ω strain-gauge Wheatstone bridges in load-cell modules. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier using three LT1114IN#PBF op amps in standard configuration. Use Value: Guaranteed ΔVOS ≤ 100µV ensures >80dB CMRR at DC, rejecting bridge excitation ripple and thermal EMFs. |
| Low-Frequency Active Filter | Battery-Powered Data Logger |
Use Scenario: Implementing 0.1Hz–10Hz anti-aliasing and noise-reduction filters for environmental sensor nodes. IC Role / Device Role / Timing Role: Dual-amplifier Sallen-Key topology with precise component ratio tolerance maintained by internal matching. Use Value: 0.3µVP-P 0.1–10Hz noise and 750kHz GBW support <1% passband ripple up to 10Hz. | Use Scenario: Signal conditioning front-end in portable pH/mV meters powered by two AA alkaline cells. IC Role / Device Role / Timing Role: Quad op amp providing simultaneous sensor buffering, reference generation, and ADC driver functions. Use Value: 400µA per amplifier and ±1.0V min supply allow >1-year operation from 3V primary cells at 10s sampling interval. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1114CN#PBF | Same silicon, commercial temp range (0°C to 70°C) vs industrial (–40°C to 85°C); identical electrical specs | Not rated for extended temperature environments; unsuitable for outdoor or automotive under-hood use | Select LT1114IN#PBF when operating outside 0–70°C or requiring industrial qualification traceability |
| AD8604ARUZ | Rail-to-rail input/output, lower 0.1–10Hz noise (0.25µVP-P), but higher 500µA supply current and no guaranteed matching specs | Lacks ΔVOS/ΔIB+ matching - cannot replace LT1114IN#PBF in 3-op-amp instrumentation amplifiers | Choose AD8604ARUZ only for single-ended, non-matching applications needing RRO and wider bandwidth |
Compared with LT1114CN#PBF, the LT1114IN#PBF adds industrial temperature qualification without electrical trade-offs; compared with AD8604ARUZ, it sacrifices rail-to-rail operation and bandwidth to deliver guaranteed matching essential for instrumentation-grade error cancellation.
Availability
LT1114IN#PBF is available at Aetrix Electronics and suitable for thermocouple amplification, bridge sensor interfacing, low-frequency active filtering, and battery-powered data acquisition systems requiring stable component supply across extended temperature ranges.
Supply support for LT1114IN#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 and maintains full product support, manufacturing, and documentation for legacy Linear op amps including the LT1114 series.
The LT1114IN#PBF belongs to Linear's precision op amp product line, designed specifically for low-power, high-accuracy analog signal conditioning in instrumentation, sensor, and measurement systems where matching between amplifiers is critical.
FAQ
What is the maximum supply voltage rating for the LT1114IN#PBF?
The LT1114IN#PBF has an absolute maximum supply voltage rating of ±20V. Operation beyond this limit risks permanent damage. The device is fully specified from ±1.0V to ±20V, with key parameters like offset voltage and supply current guaranteed at the ±1.0V minimum, making it uniquely suited for ultra-low-voltage battery applications. Always observe derating guidelines above 70°C ambient.
Does the LT1114IN#PBF support true rail-to-rail input or output operation?
No, the LT1114IN#PBF does not support rail-to-rail input or output. Its input common-mode range extends to within 1.5V of each rail (±13.5V with ±15V supplies), and its output swings to within 1.0V of each rail (±14.0V into 10kΩ). This limited swing is intentional to preserve precision and low distortion in DC-coupled instrumentation circuits - unlike general-purpose RRO op amps that sacrifice offset and drift performance for wider range.
Can the LT1114IN#PBF be used in a three-op-amp instrumentation amplifier configuration?
Yes, the LT1114IN#PBF is explicitly designed and guaranteed for three-op-amp instrumentation amplifier topologies. Its datasheet provides matching specifications (ΔVOS ≤ 100µV, ΔIB+ ≤ 500pA) between amplifier pairs A/D and B/C, enabling predictable error cancellation. Typical performance achieves 35µV input offset and 0.3µV/°C drift in such configurations - values unattainable with unmatched discrete op amps.
What is the thermal resistance (θJA) of the LT1114IN#PBF in its N14 package?
The LT1114IN#PBF in the 14-lead PDIP (N14) package has a junction-to-ambient thermal resistance (θJA) of 110°C/W, as specified in the Linear Technology datasheet. This value assumes standard JEDEC 2S2P test board conditions. For PCB layout, maintain ≥0.5"² copper pour under the package and use thermal vias to inner ground planes to approach this rating in production designs.
Is the LT1114IN#PBF pin-compatible with older precision op amps like the OP-497 or AD704?
Yes, the LT1114IN#PBF in the N14 package is pin-compatible with the OP-497 and AD704 quad op amps and serves as a direct replacement. It improves upon them with lower 75µV max offset voltage, tighter matching specs, and guaranteed operation down to ±1.0V supplies - all while maintaining identical pinout, footprint, and basic electrical interface. No PCB changes are required for drop-in substitution in existing designs.
LT1114IN#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:
- 0.3V/µs
- Gain Bandwidth Product:
- 750 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 70 pA
- Voltage - Input Offset:
- 20 µV
- Current - Supply:
- 350µA (x4 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2 V
- Voltage - Supply Span (Max):
- 40 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
LT1114IN#PBF FAQ
1.How can I place an order for LT1114IN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1114IN#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 LT1114IN#PBF reliable?
The price and inventory of LT1114IN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1114IN#PBF is usually 5 days.
3.What payment methods are accepted for LT1114IN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1114IN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1114IN#PBF?
LT1114IN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1114IN#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 LT1114IN#PBF?
For technical support, including LT1114IN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1114IN#PBF requirements.
6.How does Aetrix verify that LT1114IN#PBF is sourced from the original manufacturer or authorized distributors?
All LT1114IN#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 LT1114IN#PBF meets industry standards.
7.What is the process for return or replacement of LT1114IN#PBF?
All LT1114IN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1114IN#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 LT1114IN#PBF part is unused and in its original packaging.
Return procedure for LT1114IN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1114IN#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…
