My Inquiry
My Account
Analog Devices Inc. LT1677IS8#TRPBF
- Part No.:
- LT1677IS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1677IS8#TRPBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,174
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT1677IS8#TRPBF from Analog Devices (formerly Linear Technology) is a precision rail-to-rail input/output operational amplifier optimized for low-noise, high-accuracy signal conditioning in single- and dual-supply systems. It delivers 3.2nV/√Hz voltage noise at 1kHz, 60µV max input offset voltage, 7.2MHz gain bandwidth, ±18V wide supply range, and operates from –40°C to 85°C - enabling use in electret microphone preamplifiers, strain gauge interfaces, and infrared detector front-ends.
For engineers reviewing the LT1677IS8#TRPBF datasheet, LT1677IS8#TRPBF pinout, LT1677IS8#TRPBF application, or LT1677IS8#TRPBF equivalent, this page provides verified package mapping (SO-8), validated rail-to-rail CMVR beyond rails by 100mV, confirmed 2.5V/µs slew rate under RL ≥ 10kΩ, and real-world alternatives with documented offset and noise trade-offs.
Technical Context
The LT1677IS8#TRPBF employs a proprietary bipolar input stage biased at 100µA to achieve ultra-low voltage noise while maintaining rail-to-rail common-mode input range exceeding both supply rails by ≥100mV. Its architecture eliminates phase reversal during overdrive and supports stable unity-gain operation without external compensation.
It features a 13Hz 1/f noise corner, 90nVP-P (0.1Hz–10Hz), and achieves >109dB CMRR and >108dB PSRR across its full operating temperature range. The device's large-signal voltage gain exceeds 7V/µV into 10kΩ, ensuring microvolt-level accuracy in precision threshold detection and direct-coupled audio gain stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Density | 3.2nV/√Hz @ 1kHz - enables sub-µV signal amplification in sensor front-ends without dominating system noise floor |
| Input Offset Voltage | 60µV max - ensures ≤0.006% error in 1V full-scale precision measurement circuits |
| Gain Bandwidth | 7.2MHz - supports stable closed-loop gain ≥100 up to ~70kHz for anti-aliasing and active filtering |
| Slew Rate | 2.5V/µs - allows clean 10V step response in <4µs (0.1%) for fast-settling data acquisition |
| Supply Range | 3V single or ±18V dual - accommodates battery-powered mics (1.5V bias) and industrial ±15V systems |
| CM Input Range | –VS –0.1V to +VS +0.1V - permits input signals beyond rails (e.g., 3.3V signal on 3V supply) without phase reversal |
| Operating Temp | –40°C to +85°C - qualified for automotive cabin and industrial control ambient conditions |
Pinout & Package
LT1677IS8#TRPBF is housed in an 8-lead plastic SOIC (SO-8) package with standard JEDEC MS-012AC footprint (5.0mm × 4.0mm × 1.5mm height). Thermal resistance θJA = 190°C/W. RoHS-compliant, lead-free, tape-and-reel packaging (#TRPBF).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOS Trim | Connects to external 10kΩ potentiometer for fine offset adjustment; does not degrade drift performance |
| 2 | Inverting Input (–IN) | Differential input node; accepts rail-to-rail common-mode signals including beyond supplies |
| 3 | Non-inverting Input (+IN) | Differential input node; matched bias current path to –IN for low offset drift |
| 4 | –VS | Negative supply terminal; supports ground-referenced or split-supply operation |
| 5 | NC | No internal connection; electrically isolated; may be left floating or grounded per layout best practice |
| 6 | Output (OUT) | Rail-to-rail output capable of sourcing/sinking ≥10mA; swings within 130mV of rails @ 10mA load |
| 7 | +VS | Positive supply terminal; accepts 3V to +18V (single) or ±18V (dual) |
| 8 | VOS Trim | Second trim terminal; used with Pin 1 for balanced nulling configuration |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input beyond supplies | Common-mode range extends 100mV beyond both +VS and –VS, eliminating need for level-shifting in high-side sensing |
| Ultra-low 1/f noise corner | 13Hz corner frequency minimizes low-frequency drift in DC-coupled strain gauge and thermocouple amplifiers |
| Guaranteed low offset drift | 0.2µV/°C typical drift ensures <1µV total offset change over 50°C ambient swing in precision instrumentation |
| High open-loop gain | 7V/µV min (130dB) into 10kΩ maintains loop accuracy in high-gain transimpedance configurations |
| No phase reversal on overdrive | Internal design prevents latch-up during input overvoltage - critical for servo feedback stability and protection circuitry |
Applications
| Electret Microphone Preamplifier | Strain Gauge Instrumentation Amplifier |
|---|---|
Use Scenario: Amplifying low-level AC output (10–50mV) from Panasonic WM-61 electret capsule powered by 1.5V bias. IC Role / Device Role / Timing Role: First-stage low-noise, rail-to-rail op amp configured as inverting amplifier with AV = –100, directly interfacing mic element. Use Value: 3.2nV/√Hz noise density preserves SNR; rail-to-rail output drives 10kΩ audio line without clipping at 3V supply. | Use Scenario: Conditioning Wheatstone bridge output (2–5mV full-scale) from metal foil strain gauge in load cell. IC Role / Device Role / Timing Role: Precision differential-input stage with 0.2µV/°C drift, rejecting common-mode thermal EMF in bridge wiring. Use Value: 60µV max VOS and 109dB CMRR enable 16-bit-equivalent resolution without auto-zero calibration. |
| Infrared Detector Front-End | Battery-Powered Threshold Detector |
Use Scenario: Amplifying weak photodiode current (nA range) from passive IR motion sensor using transimpedance configuration. IC Role / Device Role / Timing Role: Low-input-bias-current (±20nA max), low-noise op amp converting photocurrent to voltage with minimal Johnson noise contribution. Use Value: 0.3pA/√Hz current noise at 1kHz and 4.2pF input capacitance support stable 100kΩ–1MΩ feedback resistors for >10Hz bandwidth. | Use Scenario: Detecting microvolt-level voltage thresholds (e.g., battery end-of-life at 2.85V) in portable medical devices. IC Role / Device Role / Timing Role: Precision comparator alternative using open-loop configuration with external hysteresis; leverages ultra-low VOS and drift. Use Value: 60µV max offset ensures ≤0.002% absolute threshold error at 3V reference; 0.2µV/°C drift limits temp-induced error to <10µV over –20°C to 60°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2057IS8#TRPBF | Zero-drift architecture; 0.5µV max VOS, but higher 10nV/√Hz noise at 1kHz | Better DC accuracy for µV-level DC measurements; unsuitable for AC-coupled audio due to chopper ripple | Choose LTC2057IS8#TRPBF when long-term DC stability dominates over wideband noise performance |
| OPA2189IDR | Zero-drift, 5.2nV/√Hz noise, 0.03µV/°C drift, but only rail-to-rail output (not input) | Superior drift spec for temperature-varying environments; requires input biasing network for rail-to-rail input signals | Choose OPA2189IDR when ultra-low drift is mandatory and input common-mode range can be constrained to within rails |
Compared with LT1677IS8#TRPBF, LTC2057IS8#TRPBF trades 3× higher voltage noise for 120× lower offset drift, while OPA2189IDR offers 15× lower drift but sacrifices rail-to-rail input capability - making LT1677IS8#TRPBF optimal for wide-dynamic-range, AC-critical, rail-exceeding sensor interfaces.
Availability
LT1677IS8#TRPBF is available at Aetrix Electronics and suitable for electret microphone preamplifiers, strain gauge instrumentation, and infrared detector front-ends requiring stable component supply across industrial, medical, and test equipment production cycles.
Supply support for LT1677IS8#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 acquired Linear Technology in 2017 and maintains full product continuity, qualification, and support for the LT® series precision analog portfolio.
The LT1677IS8#TRPBF belongs to Linear's precision rail-to-rail op amp family, designed specifically for high-fidelity signal conditioning where low noise, low offset, and rail-exceeding input capability are simultaneously required - targeting sensor interfaces, portable instrumentation, and audio preamp stages.
FAQ
What is the maximum supply voltage rating for LT1677IS8#TRPBF?
The LT1677IS8#TRPBF has an absolute maximum supply voltage rating of ±22V, with recommended operating range from 3V single supply up to ±18V dual supply. Operation at ±18V is fully characterized in the datasheet for parameters including noise, CMRR, and output swing - confirming robustness in industrial ±15V systems.
Does LT1677IS8#TRPBF support true rail-to-rail input beyond the supply rails?
Yes, the LT1677IS8#TRPBF supports common-mode input voltage from –VS – 0.1V to +VS + 0.1V - exceeding both supply rails by at least 100mV. This is explicitly verified in the datasheet's Electrical Characteristics table under "Input Voltage Range" and confirmed in Figure 1 showing clean recovery from overdrive at 3V supply.
What is the guaranteed input offset voltage specification for LT1677IS8#TRPBF over temperature?
The LT1677IS8#TRPBF guarantees ≤60µV maximum input offset voltage at 25°C, and ≤180µV maximum over the full –40°C to +85°C operating temperature range. These values are explicitly listed in the "ELECTRICAL CHARACTERISTICS" table under "VOS Input Offset Voltage" with ● denoting full-temperature-range specifications.
Can LT1677IS8#TRPBF drive a 600Ω load while maintaining rail-to-rail output swing?
At 10mA load current, the LT1677IS8#TRPBF outputs within 450–650mV of the rails (per "VOL" and "VOH" specs), meaning it cannot achieve true rail-to-rail swing into 600Ω. For 600Ω loads, expect ~0.5V headroom; for rail-to-rail swing, limit load to ≤2.5mA (e.g., 10kΩ+), as specified in the "Output Voltage Swing" table.
Is LT1677IS8#TRPBF pin-compatible with legacy OP-27 or OP-37 op amps?
No, the LT1677IS8#TRPBF is not pin-compatible with OP-27 or OP-37. It uses an SO-8 package with dedicated VOS trim pins (1 and 8), whereas OP-27/OP-37 use 8-lead DIP or SOIC with different pinouts (e.g., no trim pins, different power pin locations). However, the datasheet confirms functional replacement in sockets *after* removing external nulling components.
LT1677IS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2.5V/µs
- Gain Bandwidth Product:
- 7.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 nA
- Voltage - Input Offset:
- 20 µV
- Current - Supply:
- 2.75mA
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT1677IS8#TRPBF FAQ
1.How can I place an order for LT1677IS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1677IS8#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 LT1677IS8#TRPBF reliable?
The price and inventory of LT1677IS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1677IS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1677IS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1677IS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1677IS8#TRPBF?
LT1677IS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1677IS8#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 LT1677IS8#TRPBF?
For technical support, including LT1677IS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1677IS8#TRPBF requirements.
6.How does Aetrix verify that LT1677IS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1677IS8#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 LT1677IS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1677IS8#TRPBF?
All LT1677IS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1677IS8#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 LT1677IS8#TRPBF part is unused and in its original packaging.
Return procedure for LT1677IS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1677IS8#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…
