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Analog Devices Inc. LT1782CS6#TRPBF
- Part No.:
- LT1782CS6#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT1782CS6#TRPBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,957
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Product details
Overview
LT1782CS6#TRPBF 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, ±18V input common-mode range, and integrated shutdown functionality. It serves as a precision signal conditioner in battery-powered sensor interfaces and supply current sensing circuits.
For engineers reviewing the LT1782CS6#TRPBF datasheet, LT1782CS6#TRPBF pinout, LT1782CS6#TRPBF application, or LT1782CS6#TRPBF equivalent, key selection criteria include its unique Over-The-Top input capability, shutdown-enabled low-power mode (5µA), rail-to-rail swing under 3V–18V total supply, and guaranteed performance over 0°C to 70°C.
Technical Context
The LT1782CS6#TRPBF employs dual-input-stage architecture (NPN and PNP) enabling seamless operation across three input voltage regions-including inputs exceeding V+-with phase reversal protection preventing false outputs when inputs drop up to 9V below V–. Its internal compensation supports ≥600pF capacitive loads without external compensation.
Shutdown control is implemented via a dedicated SHDN pin (Pin 5), requiring ≥2V above V– to disable the amplifier, reducing quiescent current to 5µA and placing the output in high-impedance state. The device maintains rail-to-rail output drive (±18mA min) and 200kHz gain bandwidth product across 3V, 5V, and ±5V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 18V total (single or split); enables direct use in 3.3V, 5V, and ±5V systems without level-shifting. |
| Quiescent Current | 55µA max at 25°C; drops to 5µA in shutdown-critical for multi-year battery life in portable instrumentation. |
| Input Common-Mode Range | 0V to 18V (single-supply) or –5V to +13V (split-supply); includes Over-The-Top operation up to 18V above V+. |
| Output Drive Capability | ±18mA min into resistive loads; sustains rail-to-rail swing even under 5mA load-supports direct driving of ADC reference buffers or transducer excitation. |
| Gain Bandwidth Product | 200kHz typ; sufficient for DC–10kHz sensor signal conditioning and 4–20mA loop transmitter feedback paths. |
| Input Offset Voltage | 800µV max (0°C to 70°C); ensures <0.5% error in 12-bit precision current-sense applications at 2.5V full-scale. |
| Shutdown Response Time | tOFF = 6µs, tON = 100µs; allows rapid power cycling in duty-cycled monitoring systems without signal disruption. |
Pinout & Package
LT1782CS6#TRPBF is housed in a 6-lead ThinSOT™ (TSOT-23) package (JEDEC MO-193), 1.00mm max height, with exposed pad not connected internally. Pin 1 is marked by a dot; pin numbering follows standard TSOT-23 orientation (top view).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier Output | Rail-to-rail capable; sinks/sources ≥18mA; high-Z during shutdown-enables multiplexed analog front-ends. |
| 2 (V–) | Negative Supply Rail | Reference for all internal biasing; reverse-battery protected to –18V; accepts ground or negative rail. |
| 3 (+IN) | Non-Inverting Input | Over-The-Top compatible; handles 18V common-mode above V– independent of supply-ideal for high-side current sensing. |
| 4 (V+) | Positive Supply Rail | Bypass with 0.1µF capacitor near pin; supports 2.7V–18V total supply-covers Li-ion, 12V automotive, and industrial rails. |
| 5 (SHDN) | Shutdown Control Input | Active-high logic: ≥2V above V– disables amplifier; draws ≤8µA-compatible with GPIO or comparator outputs. |
| 6 (–IN) | Inverting Input | Differential input with 18V max differential rating; phase-reversal protected down to 9V below V–-robust against transient faults. |
Key Features
| Feature | Design Value |
|---|---|
| Over-The-Top™ Input Operation | Enables direct high-side sensing without level shifters-reduces BOM count and PCB area in battery monitor ICs. |
| Rail-to-Rail Input/Output | Maximizes dynamic range in low-voltage (3V) systems-preserves >99% of ADC full-scale for 12-bit converters. |
| Micropower Shutdown Mode | 5µA quiescent current in shutdown extends shelf life of portable medical devices between measurements. |
| Reverse Battery Protection | Draws <1nA at –18V reverse supply-eliminates need for external series diode in automotive accessory modules. |
| Phase Reversal Protection | Prevents output inversion during input transients below V–-ensures safe operation in motor-drive current-sense fault conditions. |
| Specified Performance on 3V, 5V, ±5V | Guarantees parametric consistency across consumer, industrial, and legacy test equipment power domains. |
Applications
| Battery Monitoring | Supply Current Sensing |
|---|---|
|
Use Scenario: Real-time monitoring of cell voltage and pack current in lithium-ion battery management systems (BMS) operating from 2.7V to 16.8V. IC Role / Device Role / Timing Role: Precision op amp configured as difference amplifier for shunt-based current measurement and buffer for cell voltage acquisition. Use Value: Over-The-Top input allows direct connection to high-side shunt without level-shifting circuitry; rail-to-rail output drives 12-bit SAR ADC directly. |
Use Scenario: Accurate measurement of microcontroller or peripheral supply current in ultra-low-power IoT nodes powered by coin cells or energy harvesters. IC Role / Device Role / Timing Role: Current-sense amplifier with programmable gain, interfacing to shunt resistor and low-power ADC. Use Value: 55µA quiescent current ensures measurement overhead remains <0.5% of system sleep current; shutdown mode reduces it to 5µA during idle intervals. |
| Sensor Conditioning | 4–20mA Transmitter |
|
Use Scenario: Signal conditioning for bridge-based pressure sensors in industrial process control transmitters operating from 12V or 24V supplies. IC Role / Device Role / Timing Role: Instrumentation-grade amplifier providing gain, offset correction, and rail-to-rail output buffering before DAC or current-loop driver. Use Value: 800µV max input offset ensures <0.1% FSR error in 10mV/V bridge outputs; 200kHz GBW supports step-response settling in <50µs. |
Use Scenario: Voltage-to-current conversion stage in loop-powered 4–20mA field transmitters, where headroom is constrained by 24V supply and 250Ω load. IC Role / Device Role / Timing Role: Precision op amp implementing Howland current source or improved Howland topology with active feedback. Use Value: Input range extending to V+ enables direct interface with DAC outputs up to 20V; rail-to-rail output ensures full 4–20mA compliance across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1783CS6#TRPBF | Higher supply current (210µA), 1.25MHz GBW, same Over-The-Top and shutdown features. | Better suited for higher-frequency sensor interfaces (>100kHz) or faster-settling current loops. | Select LT1783CS6#TRPBF when bandwidth >200kHz is required; otherwise LT1782CS6#TRPBF saves power. |
| AD8603ARJZ-REEL7 | No Over-The-Top capability; 50µA supply current; rail-to-rail I/O; no shutdown pin; 100kHz GBW. | Limited to conventional single-supply applications where inputs stay within rails-unsuitable for high-side sensing. | Choose AD8603ARJZ-REEL7 only for cost-sensitive, non-Over-The-Top designs with <100kHz bandwidth needs. |
Compared with LT1783CS6#TRPBF and AD8603ARJZ-REEL7, the LT1782CS6#TRPBF uniquely balances micropower operation (55µA), Over-The-Top input flexibility, and integrated shutdown-making it optimal for space-constrained, battery-operated systems requiring robust high-side signal acquisition.
Availability
LT1782CS6#TRPBF is available at Aetrix Electronics and suitable for battery monitoring, supply current sensing, and sensor conditioning applications requiring stable component supply, long-term lifecycle support, and guaranteed parametric performance across 0°C to 70°C.
Supply support for LT1782CS6#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 technical and manufacturing continuity for all Linear op amp products, including rigorous qualification per JESD47 and AEC-Q200 where applicable.
The LT1782CS6#TRPBF belongs to Linear's Over-The-Top™ op amp family, designed specifically for high-reliability signal conditioning in harsh environments where inputs exceed supply rails-targeting automotive, industrial, and portable medical applications.
FAQ
What is the maximum input voltage the LT1782CS6#TRPBF can tolerate relative to V+?
The LT1782CS6#TRPBF supports Over-The-Top™ operation: either or both inputs can be up to 18V above V+, independent of supply voltage. This is confirmed in the Absolute Maximum Ratings table and Applications Information section, enabling direct high-side shunt sensing without external level-shifting components. The LT1782CS6#TRPBF maintains functional integrity under this condition across its specified temperature range.
Does the LT1782CS6#TRPBF require external compensation for capacitive loads?
No-the LT1782CS6#TRPBF is internally compensated to drive ≥600pF capacitance under any load condition. For larger loads up to 10,000pF, a 0.22µF capacitor in series with a 150Ω resistor between output and ground provides stable operation, as documented in the Applications Information section. This eliminates the need for trial-and-error compensation in layout-constrained designs.
What is the shutdown current consumption of the LT1782CS6#TRPBF?
The LT1782CS6#TRPBF draws 5µA typical supply current in shutdown mode (SHDN ≥2V above V–), verified in Electrical Characteristics tables for the 6-lead version. This value is guaranteed over 0°C to 70°C and enables multi-year operation in battery-powered devices with periodic wake-up cycles. The LT1782CS6#TRPBF output enters high-impedance state simultaneously.
Can the LT1782CS6#TRPBF operate from a single 3V supply?
Yes-the LT1782CS6#TRPBF is fully specified for 3V single-supply operation (V+ = 3V, V– = 0V), with rail-to-rail input range (0V to 3V) and output swing within 3mV of rails under no load. Key parameters-including GBW (200kHz), slew rate (0.07V/µs), and input offset (800µV max)-are guaranteed at 3V, making the LT1782CS6#TRPBF suitable for modern low-voltage portable systems.
How does the LT1782CS6#TRPBF handle input voltages below the negative rail?
The LT1782CS6#TRPBF incorporates phase reversal protection that prevents output inversion when inputs fall up to 9V below V–, verified in the Applications Information section. Internal 6kΩ series resistors and clamping diodes limit current and protect the input stage. This ensures reliable operation during transient faults in motor-control or industrial sensor interfaces where the LT1782CS6#TRPBF is deployed.
LT1782CS6#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:
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
LT1782CS6#TRPBF FAQ
1.How can I place an order for LT1782CS6#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1782CS6#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 LT1782CS6#TRPBF reliable?
The price and inventory of LT1782CS6#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1782CS6#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1782CS6#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1782CS6#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1782CS6#TRPBF?
LT1782CS6#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1782CS6#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 LT1782CS6#TRPBF?
For technical support, including LT1782CS6#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1782CS6#TRPBF requirements.
6.How does Aetrix verify that LT1782CS6#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1782CS6#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 LT1782CS6#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1782CS6#TRPBF?
All LT1782CS6#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1782CS6#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 LT1782CS6#TRPBF part is unused and in its original packaging.
Return procedure for LT1782CS6#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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