My Inquiry
My Account
Analog Devices Inc. LT1884IS8#PBF
- Part No.:
- LT1884IS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1884IS8#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:10,769
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT1884IS8#PBF from Analog Devices (formerly Linear Technology) is a dual precision rail-to-rail output operational amplifier with picoampere input bias current, 50µV max input offset voltage (A-grade), and 1V/µs slew rate. It operates from ±1.35V to ±15V or 2.7V to 36V single supply, delivering 40mV low-side and 220mV high-side output swing near rails - ideal for thermocouple amplification and battery-powered instrumentation.
For engineers reviewing the LT1884IS8#PBF datasheet, LT1884IS8#PBF pinout, LT1884IS8#PBF application, or LT1884IS8#PBF equivalent, key selection criteria include verified input offset drift (0.8µV/°C max), guaranteed −40°C to +85°C operation, rail-to-rail output capability under load, dual-channel matching specs, and SO-8 package thermal performance (θJA = 190°C/W).
Technical Context
The LT1884IS8#PBF uses bipolar input stage with on-chip bias current cancellation to achieve 400pA max input bias current while maintaining low 50µV offset and 0.8µV/°C drift. Its rail-to-rail output stage employs complementary common-emitter followers enabling 220mV high-side and 40mV low-side swing at 5mA load.
It delivers 1.2MHz gain-bandwidth product and 10µs 0.01% settling time (AV = −1, RL = 2kΩ), with CMRR ≥106dB and PSRR ≥108dB over full temperature range - supporting precision DC-coupled signal conditioning without external trimming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 50µV max (LT1884A grade); enables ≤0.005% error in 1V full-scale precision measurement systems |
| Input Bias Current | 400pA max; supports high-impedance sensor interfaces (e.g., pH electrodes, photodiode transimpedance) without significant DC error |
| Offset Drift | 0.8µV/°C max; ensures <100µV total offset shift across −40°C to +85°C industrial temperature range |
| Rail-to-Rail Output | Swings within 40mV of V− and 220mV of V+ at 5mA; allows full dynamic range utilization in 3.3V or 5V single-supply data acquisition |
| Supply Current | 1.3mA max per amplifier; enables dual-channel precision amplification in sub-3mA total system power budget |
| Slew Rate | 1V/µs (typ); supports 100kHz small-signal bandwidth with <0.1% distortion in unity-gain buffer applications |
| CMRR / PSRR | ≥106dB / ≥108dB over full temp range; rejects supply noise and common-mode interference in noisy industrial environments |
| Operating Temp | −40°C to +85°C (industrial grade); qualified for continuous operation in embedded control and sensor front-end modules |
Pinout & Package
LT1884IS8#PBF is housed in an 8-lead plastic SOIC (S8) package with standard dual op amp pinout and θJA = 190°C/W. The package meets JEDEC MS-012 specifications and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output; capable of sourcing/sinking 30mA short-circuit current with rail-to-rail swing |
| 2 | −IN A | Inverting input for Amplifier A; protected by back-to-back diodes; max differential input ±10V |
| 3 | +IN A | Noninverting input for Amplifier A; input voltage range V− +1.2V to V+ −1.2V |
| 4 | V− | Negative supply rail; also serves as reference for output swing and bias current return path |
| 5 | +IN B | Noninverting input for Amplifier B; matched to +IN A for common-mode rejection in differential configurations |
| 6 | −IN B | Inverting input for Amplifier B; matched to −IN A for offset voltage match ≤70µV (A-grade) |
| 7 | OUT B | Amplifier B output; electrically identical to OUT A; channel separation >90dB at 10kHz |
| 8 | V+ | Positive supply rail; supports 2.7V–36V total supply range; internal ESD protection on all pins |
Key Features
| Feature | Design Value |
|---|---|
| Picoamp Input Bias Current | 400pA max enables direct interfacing with >100MΩ source impedances without guard ring compensation |
| Guaranteed Industrial Temp Range | −40°C to +85°C operation with full electrical specification compliance - no derating required |
| Rail-to-Rail Output Swing Under Load | 40mV low-side / 220mV high-side swing at 5mA ensures usable headroom in 3.3V systems |
| Dual-Amplifier Matching | Offset match ≤70µV and CMRR match ≥104dB support accurate differential and instrumentation amplifier topologies |
| Low 1/f Noise | 0.4µVP-P (0.1Hz–10Hz) enables stable DC-coupled measurements in precision integrators and thermocouple amps |
| Input Protection Architecture | On-chip clamping diodes and limiting resistors protect against ±10V differential inputs - eliminates need for external series resistors in most cases |
Applications
| Thermocouple Amplifiers | Bridge Transducer Conditioners |
|---|---|
Use Scenario: Amplifying µV-level thermocouple outputs (e.g., Type K, J) in industrial temperature controllers with cold-junction compensation. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with ultra-low input bias current to avoid thermocouple wire resistance errors. Use Value: 50µV max offset and 0.8µV/°C drift ensure <±0.5°C accuracy over full industrial temperature range without calibration. | Use Scenario: Conditioning mV-level outputs from strain gauge or pressure sensor Wheatstone bridges in structural health monitoring systems. IC Role / Device Role / Timing Role: Dual-channel instrumentation front-end providing matched gain and common-mode rejection. Use Value: ≤70µV offset match and ≥104dB CMRR match enable >80dB effective common-mode suppression in 3-op-amp IA configurations. |
| Instrumentation Amplifiers | Battery-Powered Systems |
Use Scenario: Building discrete 3-op-amp instrumentation amplifiers for medical ECG front-ends requiring high input impedance and low noise. IC Role / Device Role / Timing Role: Dual amplifier serving as matched input buffers and output gain stage in IA topology. Use Value: 400pA input bias current prevents electrode polarization errors; 0.4µVP-P 0.1–10Hz noise ensures clean baseline in sub-Hz biopotential signals. | Use Scenario: Signal conditioning in portable gas analyzers powered by single-cell Li-ion (3.0–4.2V) or two-cell alkaline (1.8–3.2V) batteries. IC Role / Device Role / Timing Role: Low-power precision gain block enabling rail-to-rail output swing from minimal supply headroom. Use Value: 1.3mA max supply current per amplifier and 2.7V min operating voltage extend battery life while preserving 12-bit+ measurement fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision dual op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2050CDD#PBF | Zero-drift architecture; 3µV max offset, 0.015µV/°C drift; higher 1.5mA supply current; only single-channel in DFN-8 | Better DC accuracy but no dual-channel integration; requires two devices for dual function; lacks rail-to-rail output swing spec | Select LTC2050CDD#PBF only when sub-5µV offset and <0.02µV/°C drift outweigh need for dual-channel integration and output swing performance |
| OPA2188AIDR | Zero-drift; 25µV max offset, 0.03µV/°C drift; 1.2mA supply current; rail-to-rail output; SO-8 package | Superior drift performance but higher 1.2mA supply current vs. LT1884IS8#PBF's 1.3mA max; same package footprint but different pinout | Choose OPA2188AIDR when long-term DC stability dominates power and layout constraints; verify PCB redesign for pinout mismatch |
Compared with LTC2050CDD#PBF and OPA2188AIDR, LT1884IS8#PBF uniquely combines dual-channel integration, guaranteed −40°C to +85°C rail-to-rail output swing, and 400pA input bias in a standard SO-8 footprint - making it optimal for space-constrained, low-power, high-impedance industrial sensor interfaces where zero-drift isn't mandatory.
Availability
LT1884IS8#PBF is available at Aetrix Electronics and suitable for thermocouple amplification, bridge transducer conditioning, and battery-powered instrumentation requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for LT1884IS8#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 its precision analog portfolio with rigorous qualification standards for industrial and automotive applications.
The LT1884 series belongs to Linear Technology's precision rail-to-rail output op amp family, designed specifically for low-voltage, high-accuracy sensor signal conditioning where picoampere input bias and guaranteed temperature performance are critical.
FAQ
What is the maximum operating supply voltage for LT1884IS8#PBF?
The LT1884IS8#PBF supports a total supply voltage range of 2.7V to 36V for single-supply operation or ±1.35V to ±15V for split-supply use. Absolute maximum rating is 40V between V+ and V− pins. Exceeding this may cause permanent damage. Operation at 36V is fully specified with 1.3mA max supply current and maintained rail-to-rail output swing performance.
Does LT1884IS8#PBF require external input protection in typical sensor applications?
No - LT1884IS8#PBF includes on-chip back-to-back diodes and limiting resistors protecting against ±10V differential input voltage. For sustained differential voltages above 10V, a 1kΩ series resistor per input is recommended. In standard thermocouple or bridge applications with <5V common-mode range, LT1884IS8#PBF operates safely without external protection components.
What is the guaranteed input offset voltage drift specification for LT1884IS8#PBF over temperature?
The LT1884IS8#PBF (A-grade) guarantees input offset voltage drift of ≤0.8µV/°C over the full −40°C to +85°C operating temperature range. This is measured and tested per Linear Technology's industrial qualification standards and appears in the "G"-marked rows of the official datasheet Electrical Characteristics table.
Can LT1884IS8#PBF drive capacitive loads without instability?
Yes - LT1884IS8#PBF is stable driving up to 300pF in unity-gain configuration. Stability improves with higher closed-loop gain; for example, at AV = −10, it supports >1nF loads. For marginal cases, adding a 10Ω–50Ω isolation resistor between output and capacitive load restores phase margin without degrading DC accuracy.
Is LT1884IS8#PBF pin-compatible with other dual op amps in SO-8 packages?
LT1884IS8#PBF uses the industry-standard dual op amp pinout (pin 1 = OUT A, pin 2 = −IN A, pin 3 = +IN A, pin 4 = V−, pin 5 = +IN B, pin 6 = −IN B, pin 7 = OUT B, pin 8 = V+). It is pin-compatible with LM358, TL072, and OP27 variants in SO-8, though electrical performance (bias current, offset, speed) differs significantly - always verify loop stability and DC error budgets when substituting.
LT1884IS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 2.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 150 pA
- Voltage - Input Offset:
- 30 µV
- Current - Supply:
- 850µA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT1884IS8#PBF FAQ
1.How can I place an order for LT1884IS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1884IS8#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 LT1884IS8#PBF reliable?
The price and inventory of LT1884IS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1884IS8#PBF is usually 5 days.
3.What payment methods are accepted for LT1884IS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1884IS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1884IS8#PBF?
LT1884IS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1884IS8#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 LT1884IS8#PBF?
For technical support, including LT1884IS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1884IS8#PBF requirements.
6.How does Aetrix verify that LT1884IS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT1884IS8#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 LT1884IS8#PBF meets industry standards.
7.What is the process for return or replacement of LT1884IS8#PBF?
All LT1884IS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1884IS8#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 LT1884IS8#PBF part is unused and in its original packaging.
Return procedure for LT1884IS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1884IS8#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…
