My Inquiry
My Account
Analog Devices Inc. LT1784IS6#TRPBF
- Part No.:
- LT1784IS6#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT1784IS6#TRPBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,611
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT1784IS6#TRPBF from Analog Devices (formerly Linear Technology) is a 2.5MHz, rail-to-rail input/output operational amplifier in a 6-lead TSOT-23 package, featuring Over-The-Top® operation with inputs up to 18V above V+, reverse battery protection to 18V, and shutdown capability reducing quiescent current to 5μA. It operates from 2.5V to 18V total supply voltage and delivers ±15mA output drive while maintaining rail-to-rail swing - ideal for precision sensor conditioning in battery-powered industrial monitoring systems.
For engineers reviewing the LT1784IS6#TRPBF datasheet, LT1784IS6#TRPBF pinout, LT1784IS6#TRPBF application, or LT1784IS6#TRPBF equivalent, key selection criteria include its guaranteed –40°C to 85°C operating range, 3.5mV max input offset voltage, 2.1V/μs slew rate, and verified shutdown functionality with 2.2μs turn-off time - all critical for low-power, high-voltage-tolerant analog front-end designs.
Technical Context
The LT1784IS6#TRPBF integrates dual-input-stage architecture (NPN and PNP) enabling Over-The-Top® operation: inputs function reliably at voltages up to 18V above V+ or 9V below V–, with phase reversal protection preventing false outputs. Its internal compensation supports ≥400pF capacitive loads without oscillation.
It features a dedicated SHDN pin (Pin 5) that places the amplifier in high-impedance shutdown mode when driven ≥1.2V above V–, reducing supply current to ≤5μA while maintaining output isolation - a confirmed behavior across –40°C to 85°C per datasheet Note 8 and Electrical Characteristics tables.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 2.5MHz typical - enables stable unity-gain operation up to ~2.5MHz or closed-loop gain of 10 at ~250kHz. |
| Slew Rate | 2.1V/μs typical - supports full-scale 2V output transitions in <1μs, suitable for fast-settling sensor interfaces. |
| Input Offset Voltage | 3.5mV maximum over –40°C to 85°C - ensures ≤3.5mV baseline error in precision DC-coupled amplification. |
| Supply Current | 750μA maximum - enables >1000-hour operation on a 750mAh coin cell in always-on 3V systems. |
| Shutdown Current | 5μA maximum - reduces system standby power by 150× versus active mode, critical for duty-cycled IoT nodes. |
| Input Voltage Range | 0V to 18V on single supply - allows direct interfacing with 12V industrial sensors without level-shifting. |
| Output Drive | ±15mA minimum - drives 330Ω loads to rail while maintaining linearity, sufficient for 4–20mA transmitter output stages. |
Pinout & Package
LT1784IS6#TRPBF is housed in a 6-lead ThinSOT™ (TSOT-23) package, 1mm profile, JEDEC MO-193 compliant, with thermal resistance θJA = 230°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT | Amplifier output | Capable of rail-to-rail swing (within 80mV of V+, 4mV of V–) and ±15mA sourcing/sinking; high-impedance during shutdown. |
| 2: V– | Negative supply rail | Reference for all internal circuitry; reverse-battery protected to –18V; input common-mode extends to –10V relative to this pin. |
| 3: +IN | Non-inverting input | Supports Over-The-Top® operation: functions with voltages up to +24V relative to V–, independent of V+. |
| 4: V+ | Positive supply rail | Accepts 2.5V–18V total supply; bypassing with 0.1μF capacitor within 25mm is required for stability. |
| 5: SHDN | Shutdown control | Active-high logic: ≥2V (vs V–) disables amplifier, reducing IQ to ≤5μA; ≤0.3V enables normal operation. |
| 6: –IN | Inverting input | Matches +IN in Over-The-Top® tolerance and phase reversal protection; differential input voltage rated to ±18V. |
Key Features
| Feature | Design Value |
|---|---|
| Over-The-Top® Input Operation | Enables direct sensing of signals exceeding V+ (up to 18V above V–), eliminating external level-shifters in high-side current sensing. |
| Rail-to-Rail Input and Output | Supports full dynamic range utilization on 3V or 5V supplies - maximizes ADC resolution without external biasing networks. |
| Reverse Battery Protection | Draws <1nA at –18V supply - prevents damage and battery drain in automotive or portable equipment with accidental polarity reversal. |
| Fast Shutdown Control | 2.2μs turn-off time and 18μs turn-on time allow precise power gating in time-sliced measurement systems. |
| Phase Reversal Protection | Guarantees correct output polarity even when inputs drop 9V below V– - essential for fault-tolerant industrial signal chains. |
Applications
| High-Side Current Sensing | Battery-Powered Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Monitoring motor phase current in a 12V BLDC controller using a 5mΩ shunt placed between load and V+. IC Role / Device Role / Timing Role: LT1784IS6#TRPBF amplifies shunt voltage with inputs referenced to 12V rail, leveraging Over-The-Top® operation to avoid level-shifting. Use Value: Enables direct measurement of currents up to 3A with ≤3.5mV offset error, reducing BOM count by eliminating isolated amplifiers or resistive dividers. |
Use Scenario: Amplifying thermocouple or strain gauge outputs in a handheld environmental monitor powered by two AA cells (3V). IC Role / Device Role / Timing Role: LT1784IS6#TRPBF provides rail-to-rail I/O and 750μA quiescent current, enabling continuous 10-bit ADC sampling with sub-100ppm gain error. Use Value: Delivers 16-bit-equivalent effective resolution via oversampling while extending battery life beyond 12 months. |
| 4–20mA Transmitter Output Stage | Industrial Supply Rail Monitor |
|
Use Scenario: Generating loop-powered 4–20mA output from a microcontroller DAC in a process transmitter. IC Role / Device Role / Timing Role: LT1784IS6#TRPBF acts as a precision current-output buffer with ±15mA drive, configured in Howland or improved Howland topology. Use Value: Maintains 0.1% current accuracy over temperature and supply variations, meeting HART physical layer compliance without calibration. |
Use Scenario: Detecting undervoltage or overvoltage conditions on a 24V PLC backplane with ±10% tolerance. IC Role / Device Role / Timing Role: LT1784IS6#TRPBF compares rail voltage against precision reference using Over-The-Top® inputs, surviving transients up to 36V. Use Value: Provides fail-safe monitoring with no external clamping or attenuation, reducing component count and board space by 30%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1782CS5#TRPBF | Lower power (55μA vs 750μA), lower GBW (1.2MHz), no shutdown, 5-lead SOT-23. | Lacks Over-The-Top® input range (max VCM = V+ – 1.2V); unsuitable for high-side sensing above V+. | Select when ultra-low power dominates and input voltage stays within rails - not a functional replacement for LT1784IS6#TRPBF's Over-The-Top® use cases. |
| LT1797CS6#TRPBF | Higher speed (10MHz GBW, 2.25V/μs SR), wider supply (2.7–12.6V), no reverse battery protection. | No Over-The-Top® operation; input range limited to rail-to-rail only; no 18V reverse protection. | Choose for high-frequency signal conditioning where input voltages remain within supply rails and reverse polarity risk is absent. |
Compared with LT1784IS6#TRPBF, LT1782CS5#TRPBF trades Over-The-Top® capability and shutdown for 14× lower quiescent current, while LT1797CS6#TRPBF offers 4× higher bandwidth but forfeits high-voltage input tolerance and reverse-battery resilience - making LT1784IS6#TRPBF uniquely suited for ruggedized, rail-exceeding analog front ends.
Availability
LT1784IS6#TRPBF is available at Aetrix Electronics and suitable for industrial sensor interfaces, battery-powered instrumentation, and 4–20mA transmitter designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT1784IS6#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 support, manufacturing, and documentation for legacy Linear parts including the LT1784 series.
The LT1784 product line was designed specifically for precision, high-voltage-tolerant analog signal conditioning in space-constrained, low-power industrial and portable systems - emphasizing Over-The-Top® operation, rail-to-rail performance, and robust fault handling.
FAQ
What is the guaranteed operating temperature range for LT1784IS6#TRPBF?
The LT1784IS6#TRPBF is specified and tested over –40°C to +85°C ambient temperature. Unlike the 'C' grade, the 'I' grade guarantees all electrical parameters-including input offset voltage, gain bandwidth, and shutdown current-across this full industrial range, as confirmed in Note 11 of the datasheet.
Does LT1784IS6#TRPBF support true Over-The-Top® operation on both inputs simultaneously?
Yes. The LT1784IS6#TRPBF supports Over-The-Top® operation on either or both inputs: each input tolerates voltages up to +24V relative to V– (i.e., 18V above V+) and down to –10V relative to V–, with 18V differential rating - verified in Absolute Maximum Ratings and Applications Information sections.
How does the shutdown feature of LT1784IS6#TRPBF affect output state and leakage?
When the SHDN pin is pulled ≥2V above V–, the LT1784IS6#TRPBF disables its output stage, placing OUT in high-impedance state with ≤1μA leakage (≤0.05μA typical). This is explicitly characterized in the Electrical Characteristics table under "Output Leakage Current, Shutdown" for the 6-lead version.
Can LT1784IS6#TRPBF drive a 10kΩ load while maintaining rail-to-rail output swing?
Yes. The LT1784IS6#TRPBF guarantees rail-to-rail output swing into ≥10kΩ loads: VOH ≥4.885V and VOL ≤400mV at VS = 5V, ISOURCE/ISINK = 10mA - meaning it easily meets full swing requirements for standard 10kΩ ADC input impedances or voltage follower configurations.
Is reverse battery protection validated for LT1784IS6#TRPBF at –18V supply?
Yes. The LT1784IS6#TRPBF is rated for reverse supply voltage up to –18V (Absolute Maximum Ratings), and draws <1nA quiescent current under that condition - a design feature confirmed in both the Description section and Applications Information, ensuring zero power drain and no damage during accidental polarity reversal.
LT1784IS6#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- Over-The-Top®
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2.2V/µs
- Gain Bandwidth Product:
- 2.6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 250 nA
- Voltage - Input Offset:
- 1.6 mV
- Current - Supply:
- 750µA
- Current - Output / Channel:
- 27 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 18 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
LT1784IS6#TRPBF FAQ
1.How can I place an order for LT1784IS6#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1784IS6#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 LT1784IS6#TRPBF reliable?
The price and inventory of LT1784IS6#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1784IS6#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1784IS6#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1784IS6#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1784IS6#TRPBF?
LT1784IS6#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1784IS6#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 LT1784IS6#TRPBF?
For technical support, including LT1784IS6#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1784IS6#TRPBF requirements.
6.How does Aetrix verify that LT1784IS6#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1784IS6#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 LT1784IS6#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1784IS6#TRPBF?
All LT1784IS6#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1784IS6#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 LT1784IS6#TRPBF part is unused and in its original packaging.
Return procedure for LT1784IS6#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1784IS6#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…
