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Analog Devices Inc. LT1800IS5#TRPBF
- Part No.:
- LT1800IS5#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LT1800IS5#TRPBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:890
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Product details
Overview
LT1800IS5#TRPBF from Analog Devices (formerly Linear Technology) is a single, rail-to-rail input and output precision operational amplifier in a 5-pin TSOT-23 package, specified for –40°C to 85°C operation. It delivers 80MHz gain bandwidth, 25V/µs slew rate, 350µV max input offset voltage, 2mA max supply current, and rail-to-rail swing within 20mV of either supply - enabling high-fidelity signal conditioning in low-voltage, space-constrained industrial sensor interfaces and portable data acquisition systems.
For engineers reviewing the LT1800IS5#TRPBF datasheet, LT1800IS5#TRPBF pinout, LT1800IS5#TRPBF application, or LT1800IS5#TRPBF equivalent, key selection criteria include its guaranteed –40°C to 85°C performance, 2.3V minimum supply capability, low 8.5nV/√Hz input noise density, and compatibility with unity-gain stable capacitive loads up to 75pF - critical for precision ADC driver and active filter designs requiring DC accuracy and wide dynamic range.
Technical Context
The LT1800IS5#TRPBF employs a dual-input-stage architecture: a PNP pair active from V– to ~1.2V below V+, and an NPN pair active for the upper common-mode range up to V+. This enables true rail-to-rail input operation with <75µV typical offset in the PNP region and seamless transition between stages without phase reversal. Input bias current is trimmed to ≤250nA over VCM = 0.2V above V– to 1.2V below V+.
Its output stage uses complementary common-emitter transistors (Q14/Q15) with local feedback capacitors (C2/C3) to achieve rail-to-rail swing and low output impedance at high frequency. The device is fabricated on Linear's proprietary high-speed complementary bipolar process, supporting stable operation at ±5V, +5V/0V, or +3V/0V supplies with full specification across all three.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 80MHz - supports stable closed-loop operation up to 10MHz at AV = 8, suitable for high-speed ADC drivers and video line drivers. |
| Slew Rate | 25V/µs - enables clean 4Vpp output at 2MHz full-power bandwidth, minimizing distortion in pulse and video applications. |
| Input Offset Voltage | 350µV max - ensures ≤0.7mV error in 2V full-scale 12-bit systems, critical for precision instrumentation front-ends. |
| Supply Current | 2mA max - allows battery-powered operation for >100 hours on a 200mAh coin cell in always-on sensor signal chains. |
| Input Noise Density | 8.5nV/√Hz at 10kHz - maintains SNR >85dB in 20kHz audio band when driving 10kΩ source impedances. |
| Common-Mode Rejection | 105dB - rejects >300µV of power-supply ripple or ground bounce in noisy industrial environments. |
| Operating Temperature | –40°C to 85°C - qualified for automotive under-hood and industrial control cabinet deployment without derating. |
Pinout & Package
LT1800IS5#TRPBF is housed in a 5-lead plastic TSOT-23 package (1mm height), optimized for high-density PCB layouts. Pin 1 is marked with a dot; pin numbering follows standard TSOT-23 convention (counterclockwise from mark).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VOUT) | Amplifier output | Delivers rail-to-rail swing (within 20mV of rails) into ≥1kΩ load; requires series resistor for >75pF capacitive loads. |
| 2 (VS–) | Negative supply | Reference for internal biasing; must be connected to ground or negative rail; no floating allowed. |
| 3 (+IN) | Non-inverting input | High-impedance node (2pF capacitance); accepts signals from V– to V+; protected by back-to-back diodes. |
| 4 (–IN) | Inverting input | Differential partner to +IN; same ESD and overvoltage protection; used for feedback in standard configurations. |
| 5 (VS+) | Positive supply | Accepts 2.3V to 12.6V total supply; supports single-ended (e.g., 5V/0V) or split-rail (e.g., ±5V) operation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables maximum signal dynamic range in 3V systems - e.g., 0–3V output swing preserves full 12-bit resolution of 3V ADCs. |
| Low 2mA quiescent current | Reduces thermal load in sealed enclosures and extends battery life in portable test equipment without sacrificing speed. |
| 8.5nV/√Hz input noise density | Permits direct coupling to low-level transducer outputs (e.g., 10mV thermocouples) without added preamplification noise penalty. |
| Input common-mode range includes both rails | Eliminates level-shifting circuitry when interfacing with 0V-referenced sensors or DACs in single-supply systems. |
| Guaranteed –40°C to 85°C operation | Ensures consistent offset drift (≤5µV/°C) and gain stability across industrial temperature extremes without calibration. |
Applications
| Industrial Sensor Signal Conditioning | High-Speed ADC Driver |
|---|---|
Use Scenario: Amplifying low-level mV-range outputs from strain gauges or RTDs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision buffer and level shifter, providing rail-to-rail output swing into SAR ADC reference buffers while rejecting supply noise. Use Value: 350µV max offset and 105dB CMRR ensure <0.01% measurement error across 4–20mA loop-powered field devices operating at 24V with ground offsets. | Use Scenario: Driving the input of a 16-bit, 1MSPS successive-approximation ADC in portable medical data loggers. IC Role / Device Role / Timing Role: Unity-gain stable driver with 25V/µs slew rate, settling to 0.01% in 250ns to support full-speed sampling without aperture jitter. Use Value: 8.5nV/√Hz noise density contributes <0.5LSB RMS noise to the ADC's effective resolution, preserving ENOB >14 bits. |
| Rail-to-Rail Active Filters | Video Line Driver |
Use Scenario: Implementing 4th-order Butterworth anti-aliasing filters in battery-powered oscilloscope front-ends. IC Role / Device Role / Timing Role: Dual-stage op amp in Sallen-Key topology, leveraging rail-to-rail swing to maximize filter stopband attenuation without clipping. Use Value: 80MHz GBW enables precise component selection for cutoff frequencies up to 10MHz with <0.1dB passband ripple. | Use Scenario: Driving 75Ω coaxial video lines in security camera DVR inputs with NTSC/PAL composite signals. IC Role / Device Role / Timing Role: Gain-of-two video amplifier with 0.35% differential gain and 0.4° differential phase error at 4.43MHz. Use Value: Maintains color fidelity and sync stability over temperature, meeting SMPTE RP-168 broadcast-grade video specifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Zero-drift architecture; 0.1µV/°C offset drift vs. LT1800IS5#TRPBF's 5µV/°C; 350kHz GBW vs. 80MHz. | Better for µV-level DC-critical applications (e.g., weigh scales); unsuitable for >100kHz AC signal paths. | Select OPA333AIDBVR only when ultra-low drift dominates over bandwidth and slew rate requirements. |
| AD8605ARTZ-REEL7 | FET input; 1pA bias current vs. 250nA; 10MHz GBW vs. 80MHz; 5V/µs slew rate vs. 25V/µs. | Preferred for GΩ-source-impedance photodiode amps; insufficient for fast-settling ADC drivers or video. | Choose AD8605ARTZ-REEL7 when input bias current <10pA is mandatory and bandwidth ≤1MHz suffices. |
Compared with OPA333AIDBVR and AD8605ARTZ-REEL7, the LT1800IS5#TRPBF uniquely balances 80MHz bandwidth, 25V/µs slew rate, rail-to-rail operation, and sub-µA input bias in a –40°C to 85°C qualified TSOT-23 package - making it the only option among the three for high-fidelity, wide-dynamic-range signal chains requiring both precision and speed.
Availability
LT1800IS5#TRPBF is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable data acquisition systems, and video signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT1800IS5#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, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing ICs, serving industrial, automotive, communications, and healthcare markets.
The LT1800 family was designed specifically for precision, high-speed signal conditioning in space- and power-constrained applications - delivering rail-to-rail operation, low noise, and wide supply range without compromising DC accuracy or AC performance.
FAQ
What is the minimum supply voltage supported by the LT1800IS5#TRPBF?
The LT1800IS5#TRPBF operates down to 2.3V total supply voltage (e.g., +2.3V/0V), verified per the Power Supply Rejection Ratio test in the datasheet. This enables reliable startup and operation in Li-ion battery-powered systems where voltage drops below 3V during discharge, ensuring continuous functionality without brownout reset circuits.
Does the LT1800IS5#TRPBF require external compensation for unity-gain stability?
No, the LT1800IS5#TRPBF is internally compensated for unity-gain stability and drives capacitive loads up to 75pF without oscillation. For loads exceeding 75pF, a 10Ω to 50Ω series resistor between the output pin and the load is recommended to isolate capacitance and maintain phase margin - confirmed by transient response graphs in the datasheet.
How does the LT1800IS5#TRPBF handle input voltages beyond the supply rails?
The LT1800IS5#TRPBF features back-to-back input diodes and ESD protection diodes to both rails. Inputs may be driven up to ±10mA beyond the supplies without damage or phase reversal, provided current is externally limited - a key feature validated in the Absolute Maximum Ratings table and Applications Information section.
What is the guaranteed input offset voltage specification for LT1800IS5#TRPBF over temperature?
The LT1800IS5#TRPBF guarantees ≤350µV maximum input offset voltage at TA = 25°C and ≤700µV maximum over the full –40°C to 85°C operating range (per the "I" grade column in Electrical Characteristics tables). This is measured at VCM = 0V and applies to the TSOT-23 package variant.
Can the LT1800IS5#TRPBF drive a 50Ω video load directly?
No - the LT1800IS5#TRPBF is not rated for continuous 50Ω loads. Its short-circuit current is 40–45mA (min/max), limiting safe 50Ω drive to ≤±2V output swing. For 75Ω video line driving, it is qualified per NTSC specs (0.35% ΔG, 0.4° Δθ) and should be used with appropriate series termination per the datasheet's video application guidance.
LT1800IS5#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- 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:
- 23V/µs
- Gain Bandwidth Product:
- 70 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 400 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 1.8mA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.3 V
- Voltage - Supply Span (Max):
- 12.6 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
LT1800IS5#TRPBF FAQ
1.How can I place an order for LT1800IS5#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1800IS5#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 LT1800IS5#TRPBF reliable?
The price and inventory of LT1800IS5#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1800IS5#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1800IS5#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1800IS5#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1800IS5#TRPBF?
LT1800IS5#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1800IS5#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 LT1800IS5#TRPBF?
For technical support, including LT1800IS5#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1800IS5#TRPBF requirements.
6.How does Aetrix verify that LT1800IS5#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1800IS5#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 LT1800IS5#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1800IS5#TRPBF?
All LT1800IS5#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1800IS5#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 LT1800IS5#TRPBF part is unused and in its original packaging.
Return procedure for LT1800IS5#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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