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Analog Devices Inc. LT1783IS5#TRPBF
- Part No.:
- LT1783IS5#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LT1783IS5#TRPBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,536
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Product details
Overview
LT1783IS5#TRPBF from Analog Devices (formerly Linear Technology) is a 1.25MHz, micropower, rail-to-rail input and output operational amplifier in a 5-lead TSOT-23 package, operating from 2.5V to 18V total supply voltage with ≤300μA quiescent current, Over-The-Top® input capability up to 18V above V–, and –40°C to 85°C industrial temperature range. It enables precision sensing in battery-powered instrumentation and supply current monitoring.
For engineers reviewing the LT1783IS5#TRPBF datasheet, LT1783IS5#TRPBF pinout, LT1783IS5#TRPBF application, or LT1783IS5#TRPBF equivalent, key selection criteria include its guaranteed rail-to-rail I/O swing at 3V/5V/±5V supplies, 800μV max input offset voltage over –40°C to 85°C, reverse-battery protection to 18V, 18mA min output drive, and absence of shutdown functionality in the 5-lead variant.
Technical Context
The LT1783IS5#TRPBF uses dual-input-stage architecture (NPN and PNP) enabling Over-The-Top® operation - inputs function reliably even when ≥0.3V above V+, with 18V common-mode and differential input voltage tolerance independent of supply. Its phase reversal protection prevents false outputs for inputs as low as 9V below V–.
Internally compensated for ≥400pF capacitive loads, it delivers 0.42V/μs slew rate and maintains 1.25MHz gain bandwidth product across 3V, 5V, and ±5V supplies. Input bias current varies with common-mode voltage: ~–40nA below V+–0.8V (PNP active), ~80nA near V+ (NPN active), and ~30μA >0.3V above V+.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 1.25MHz - supports stable unity-gain buffer or gain-of-10 amplification up to 125kHz without compensation. |
| Supply Current | ≤300μA max at –40°C to 85°C - enables multi-year operation on coin-cell or solar-harvested power. |
| Input Offset Voltage | 800μV max over –40°C to 85°C - ensures ≤0.8mV error in 1V full-scale sensor conditioning paths. |
| Rail-to-Rail I/O | Swings within 3mV of V– and 60mV of V+ at no load - preserves dynamic range in single-supply 0V–5V systems. |
| Input Voltage Range | 0V to 18V common mode (single supply), –5V to +13V (split supply) - accommodates direct high-side current sense or battery voltage monitoring. |
| Reverse-Battery Protection | Withstands –18V supply with <1nA current - eliminates need for external series diode in automotive or portable equipment. |
| Output Drive | ≥18mA sourcing/sinking - drives 200Ω loads to rail while maintaining linearity, suitable for 4–20mA transmitter output stages. |
Pinout & Package
LT1783IS5#TRPBF is housed in a 5-lead ThinSOT™ (TSOT-23) package, 1.00mm max height, JEDEC MO-193 compliant, with thermal resistance θJA = 250°C/W. Pin 1 is marked by a dot; device orientation follows standard S5 top view.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | High-impedance, rail-to-rail capable node; drives capacitive loads ≥400pF without oscillation. |
| 2 (V–) | Negative supply rail | Reference for all internal circuitry; accepts ground (single supply) or negative voltage (split supply). |
| 3 (+IN) | Non-inverting input | Dual-stage input: PNP active below V+–0.8V; NPN active near V+; supports Over-The-Top® operation. |
| 4 (V+) | Positive supply rail | Bypass with 0.1μF ceramic capacitor within 25mm; supports reverse-battery protection up to –18V. |
| 5 (–IN) | Inverting input | Matches +IN characteristics; phase reversal protection prevents erroneous output when inputs drop ≤9V below V–. |
Key Features
| Feature | Design Value |
|---|---|
| Over-The-Top® Input Operation | Enables direct connection to signals exceeding V+, e.g., 24V bus monitoring on 5V-powered systems without level-shifting. |
| Micropower Consumption | 300μA max over full temperature range allows integration into always-on sensor nodes with sub-10μA average system current. |
| Rail-to-Rail Input and Output | Preserves full ADC input range in 3.3V microcontroller systems, maximizing SNR in low-voltage signal chains. |
| Reverse-Battery Protection | Eliminates external protection diode, reducing BOM count and forward-drop error in battery-powered instrumentation. |
| Phase Reversal Protection | Guarantees correct polarity output even during transient faults where inputs dip 9V below ground - critical for safety-critical monitoring. |
Applications
| Portable Instrumentation | Battery Monitoring |
|---|---|
Use Scenario: Handheld multimeter front-end amplifying mV-level thermocouple or shunt voltage signals. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with low offset and drift, rejecting common-mode noise from shared battery return paths. Use Value: 800μV max VOS and 5μV/°C drift ensure ≤1.2°C error over –20°C to 70°C ambient without calibration. | Use Scenario: Real-time Li-ion cell voltage tracking in 2–4S battery packs with integrated fuel gauging. IC Role / Device Role / Timing Role: High-impedance buffer isolating cell voltage from ADC input, supporting 0V–4.2V measurement range. Use Value: Rail-to-rail output swing and 18mA drive enable direct interface to SAR ADC reference buffers without external op-amp gain stage. |
| Sensor Conditioning | Supply Current Sensing |
Use Scenario: Amplifying low-amplitude bridge outputs (e.g., pressure or load cells) in industrial IoT nodes. IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation amplifier front-end with 20nV/√Hz input noise density at 1kHz. Use Value: 0.1Hz–10Hz noise of 0.6μVP-P minimizes baseline wander in slow-sampling structural health monitoring. | Use Scenario: High-side current sense in 12V automotive ECUs measuring load currents from 10mA to 5A. IC Role / Device Role / Timing Role: Difference amplifier with Over-The-Top® inputs referenced to battery positive, rejecting common-mode transients. Use Value: 18V input common-mode range allows direct connection to 12V bus while sensing across 10mΩ shunt - no level-shifter required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail, micropower op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1782CS5#TRPBF | 200kHz GBW, 40μA IQ, same SOT-23-5 package - lower speed, ultra-low power. | Optimized for sub-10kHz sensor interfaces where bandwidth is secondary to battery life. | Select LT1782 when GBW <300kHz suffices and quiescent current must be <50μA. |
| LT1636CS5#TRPBF | 55μA IQ, 44V input range above V–, MSOP-8 package - wider VCM, different footprint. | Required for >18V common-mode applications (e.g., 24V industrial buses) and includes shutdown pin. | Choose LT1636 only if input range exceeds 18V or MSOP-8 layout is already committed. |
Compared with LT1782 and LT1636, the LT1783IS5#TRPBF uniquely balances 1.25MHz bandwidth, 300μA quiescent current, and 5-lead SOT-23 compatibility - making it optimal for cost-sensitive, space-constrained 3–5V systems needing both speed and micropower operation without shutdown.
Availability
LT1783IS5#TRPBF is available at Aetrix Electronics and suitable for portable instrumentation, battery monitoring, and sensor conditioning requiring stable component supply across industrial temperature grades.
Supply support for LT1783IS5#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 LT1783 family.
The LT1783 belongs to Linear's Over-The-Top® op amp product line, designed specifically for high-voltage, single-supply signal conditioning in battery-powered and automotive systems where inputs exceed the positive rail.
FAQ
What is the maximum supply voltage for LT1783IS5#TRPBF?
The LT1783IS5#TRPBF supports a total supply voltage (V+ to V–) up to 18V, with absolute maximum ratings allowing 18V differential input voltage and input pins rated to +24V relative to V–. This enables robust operation in 12V and 15V industrial systems without external clamping.
Does LT1783IS5#TRPBF have a shutdown pin?
No, the LT1783IS5#TRPBF is the 5-lead SOT-23 variant and does not include a shutdown pin. Shutdown functionality is exclusive to the 6-lead SOT-23 versions (e.g., LT1783IS6#TRPBF). The LT1783IS5#TRPBF operates continuously whenever powered.
What is the guaranteed input offset voltage specification for LT1783IS5#TRPBF over temperature?
The LT1783IS5#TRPBF guarantees an input offset voltage of ≤800μV over the full –40°C to +85°C operating temperature range, per the Electrical Characteristics table for LT1783I grade devices. At 25°C, typical VOS is 400μV.
Can LT1783IS5#TRPBF drive capacitive loads?
Yes, the LT1783IS5#TRPBF is internally compensated to drive ≥400pF capacitively without oscillation. For loads >400pF (e.g., long PCB traces or ADC input caps), a 0.22μF capacitor in series with a 150Ω resistor from output to ground provides stable compensation up to 10,000pF.
Is LT1783IS5#TRPBF suitable for high-side current sensing?
Yes, the LT1783IS5#TRPBF is ideal for high-side current sensing due to its Over-The-Top® input architecture: inputs operate correctly even when biased 18V above V–, allowing direct connection to a 12V bus while referencing the shunt to ground - no level-shifting circuitry required.
LT1783IS5#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- Over-The-Top®
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.45V/µs
- Gain Bandwidth Product:
- 1.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 40 nA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 230µA
- Current - Output / Channel:
- 30 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-23-5
LT1783IS5#TRPBF FAQ
1.How can I place an order for LT1783IS5#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1783IS5#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 LT1783IS5#TRPBF reliable?
The price and inventory of LT1783IS5#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1783IS5#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1783IS5#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1783IS5#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1783IS5#TRPBF?
LT1783IS5#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1783IS5#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 LT1783IS5#TRPBF?
For technical support, including LT1783IS5#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1783IS5#TRPBF requirements.
6.How does Aetrix verify that LT1783IS5#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1783IS5#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 LT1783IS5#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1783IS5#TRPBF?
All LT1783IS5#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1783IS5#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 LT1783IS5#TRPBF part is unused and in its original packaging.
Return procedure for LT1783IS5#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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