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Analog Devices Inc. LT1782HS6#TRMPBF
- Part No.:
- LT1782HS6#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT1782HS6#TRMPBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:638
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Product details
Overview
LT1782HS6#TRMPBF from Analog Devices (formerly Linear Technology) is a micropower, 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+, 55µA max supply current, –40°C to 125°C operating range, and integrated shutdown pin. It is used in battery monitoring and supply current sensing where input voltage exceeds the positive rail.
For engineers reviewing the LT1782HS6#TRMPBF datasheet, LT1782HS6#TRMPBF pinout, LT1782HS6#TRMPBF application, or LT1782HS6#TRMPBF equivalent, this page delivers verified specifications, thermal-grade packaging details, shutdown timing (6µs turn-off), Over-The-Top™ input validation, and real-world sensor conditioning use cases - all confirmed for the H-grade 6-lead variant.
Technical Context
The LT1782HS6#TRMPBF employs dual-input-stage architecture (NPN/PNP) enabling Over-The-Top™ operation: inputs remain functional up to 18V above V– and ≥0.3V above V+, with phase reversal protection active for inputs as low as 9V below V–. Its internal compensation supports ≥600pF capacitive loads without oscillation.
Shutdown functionality is implemented via dedicated SHDN pin (Pin 5), requiring ≥2V above V– to disable; quiescent current drops to 25µA (typ), output enters high-impedance state, and leakage remains ≤3µA. Gain bandwidth product is 200kHz at 25°C and ≥65kHz over full –40°C to 125°C range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 18V total (single or split); enables direct 12V/15V system rail interfacing without level-shifting. |
| Input Common-Mode Range | 0.3V to 18V above V–, including operation >V+; supports high-side current sensing and battery-overvoltage detection. |
| Quiescent Current | 55µA max at 25°C, 100µA max over –40°C to 125°C; sustains multi-year battery life in portable instrumentation. |
| Output Drive Capability | ±18mA min into resistive load; maintains rail-to-rail swing under 5mA sourcing/sinking at 5V supply. |
| Gain Bandwidth Product | 200kHz typical at 25°C, 65kHz minimum over full temperature range; suitable for DC–10kHz signal conditioning. |
| Shutdown Quiescent Current | 25µA typical at 25°C (per datasheet Note 10); reduces system standby power by >95% vs active mode. |
| Input Offset Voltage | 800µV max over –40°C to 125°C; ensures <0.5% error in precision 2.5V reference monitoring circuits. |
Pinout & Package
LT1782HS6#TRMPBF is housed in a 6-lead ThinSOT™ (TSOT-23) package, 1.00mm max height, JEDEC MO-193 compliant, with exposed pad not connected internally. Pin 1 marked by notch or dimple; pin numbering follows standard TSOT-23 counterclockwise layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier Output | Rail-to-rail capable; sinks/sources ≥18mA; high-Z during shutdown. |
| 2 (V–) | Negative Supply / Ground Reference | Reference for all biasing; reverse battery protection active up to –18V on this pin. |
| 3 (+IN) | Non-Inverting Input | Supports Over-The-Top™ operation; handles 18V common-mode above V– independent of V+. |
| 4 (V+) | Positive Supply | Bypass with 0.1µF ceramic capacitor; supports up to 18V total supply across V+–V–. |
| 5 (SHDN) | Shutdown Control Input | Active-high: ≥2V above V– disables amplifier; 6µs turn-off time enables fast power gating. |
| 6 (–IN) | Inverting Input | Differential input stage with 18V max differential rating; phase reversal protected to –9V below V–. |
Key Features
| Feature | Design Value |
|---|---|
| Over-The-Top™ Input Operation | Enables direct high-side sensing (e.g., 12V bus monitoring) without external level shifters or resistive dividers. |
| Rail-to-Rail Input and Output | Maximizes dynamic range in low-voltage systems (3V/5V), preserving signal fidelity from 0V to V+. |
| Reverse Battery Protection | Draws <1nA at –18V supply; eliminates need for external series diode in automotive/battery-powered designs. |
| Integrated Shutdown Pin | Reduces supply current to 25µA and isolates output, enabling low-power sleep modes in portable devices. |
| Phase Reversal Protection | Prevents false outputs when inputs dip to –9V below V–, critical for fault-tolerant sensor interfaces. |
Applications
| Battery Monitoring | Supply Current Sensing |
|---|---|
|
Use Scenario: Real-time monitoring of Li-ion or lead-acid battery voltage during charge/discharge cycles in handheld medical devices. IC Role / Device Role / Timing Role: Precision buffer and level translator for ADC input, handling voltages up to 18V while powered from 3.3V rail. Use Value: Eliminates external voltage dividers and level shifters, reducing BOM count and improving measurement accuracy over temperature. |
Use Scenario: High-side current sensing in solar charge controllers to measure panel-to-battery current flow. IC Role / Device Role / Timing Role: Differential amplifier configured as current-sense amplifier with Over-The-Top™ inputs referenced to battery positive terminal. Use Value: Enables direct sensing at battery voltage (up to 18V) while operating from lower auxiliary supply, avoiding isolation components. |
| Sensor Conditioning | 4mA–20mA Transmitters |
|
Use Scenario: Amplifying low-level output from industrial pressure transducers (mV-range) in harsh environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Low-drift, micropower signal conditioner providing gain and offset correction before ADC digitization. Use Value: 800µV max VOS and 15µV/°C drift ensure stable calibration over –40°C to 125°C, meeting industrial grade requirements. |
Use Scenario: Driving 4mA–20mA current loops in process automation transmitters powered by 24V loop supply. IC Role / Device Role / Timing Role: Output stage amplifier with rail-to-rail swing and ±18mA drive capability, configured in Howland or improved Howland topology. Use Value: Sustains full 20mA loop current with minimal headroom loss, enabling reliable operation even with aging or long cable runs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1782IS6#TRPBF | Same pinout and architecture, but rated for –40°C to 85°C only; 60µA max IS vs 100µA for H-grade at 125°C. | Limited to commercial/industrial ambient environments; unsuitable for under-hood automotive or high-temp industrial enclosures. | Select when full 125°C operation is unnecessary and cost optimization is prioritized. |
| ADA4522-1ARZ | Zero-drift architecture; 2.5µV max VOS, 0.015µV/°C drift; higher 3MHz GBW; 1.2mA IS; SOIC-8 only. | Superior DC precision and drift performance, but lacks Over-The-Top™ input capability and shutdown function. | Choose for ultra-low-offset applications where input voltage stays within rails and micropower is secondary. |
Compared with LT1782IS6#TRPBF and ADA4522-1ARZ, the LT1782HS6#TRMPBF uniquely combines extended temperature operation, Over-The-Top™ input tolerance, and integrated shutdown in a space-constrained TSOT-23 package - making it irreplaceable for high-reliability, rail-exceeding sensing in thermally demanding environments.
Availability
LT1782HS6#TRMPBF is available at Aetrix Electronics and suitable for battery monitoring, supply current sensing, and sensor conditioning applications requiring stable component supply across automotive, industrial, and portable instrumentation markets.
Supply support for LT1782HS6#TRMPBF 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, documentation, and manufacturing for legacy Linear parts including the LT1782 family.
The LT1782HS6#TRMPBF belongs to Linear's precision micropower op amp product line, designed specifically for energy-constrained, high-voltage-sensing applications where inputs exceed supply rails and extended temperature reliability is mandatory.
FAQ
What is the maximum input voltage relative to V+ that the LT1782HS6#TRMPBF supports?
The LT1782HS6#TRMPBF supports Over-The-Top™ operation: its inputs function reliably up to 18V above V–, and can operate ≥0.3V above V+ (i.e., VIN = V+ + 0.3V minimum). This enables direct high-side sensing without external level translation. The absolute maximum input voltage is +24V relative to V–, per Absolute Maximum Ratings.
Does the LT1782HS6#TRMPBF require external compensation for capacitive loads?
No - the LT1782HS6#TRMPBF is internally compensated to drive ≥600pF capacitively without instability. For loads >600pF (e.g., 10,000pF cables), a 0.22µF capacitor in series with a 150Ω resistor between OUT and GND provides stable compensation across all output currents, as validated in the datasheet's Applications Information section.
How does the shutdown feature affect output impedance and leakage in the LT1782HS6#TRMPBF?
When the SHDN pin is asserted (≥2V above V–), the LT1782HS6#TRMPBF output enters high-impedance state with leakage current ≤3µA over –40°C to 125°C. This allows safe multiplexing or isolation of downstream circuitry without loading, unlike non-shutdown op amps which maintain low-Z output even in idle states.
Can the LT1782HS6#TRMPBF be used with single-supply 3V operation?
Yes - the LT1782HS6#TRMPBF is fully specified at 3V total supply (V+ = 3V, V– = 0V), delivering rail-to-rail input/output swing, 55µA max supply current, and 200kHz GBW. Its input common-mode range extends from 0.3V to 18V above V–, ensuring compatibility with 3V logic interfaces while retaining Over-The-Top™ capability.
What is the guaranteed performance temperature range for the LT1782HS6#TRMPBF?
The LT1782HS6#TRMPBF is guaranteed to meet all electrical specifications over –40°C to 125°C ambient temperature, as confirmed in the "Specified Temperature Range" table and Note 3 of the datasheet. This H-grade qualification makes it suitable for under-hood automotive, industrial control, and aerospace applications where extended thermal operation is required.
LT1782HS6#TRMPBF 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:
- 0.075V/µs
- Gain Bandwidth Product:
- 225 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 8 nA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 45µA
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 18 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
LT1782HS6#TRMPBF FAQ
1.How can I place an order for LT1782HS6#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1782HS6#TRMPBF 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 LT1782HS6#TRMPBF reliable?
The price and inventory of LT1782HS6#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1782HS6#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT1782HS6#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1782HS6#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1782HS6#TRMPBF?
LT1782HS6#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1782HS6#TRMPBF 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 LT1782HS6#TRMPBF?
For technical support, including LT1782HS6#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1782HS6#TRMPBF requirements.
6.How does Aetrix verify that LT1782HS6#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT1782HS6#TRMPBF 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 LT1782HS6#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT1782HS6#TRMPBF?
All LT1782HS6#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1782HS6#TRMPBF, 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 LT1782HS6#TRMPBF part is unused and in its original packaging.
Return procedure for LT1782HS6#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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