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Analog Devices Inc. LT1812IS5#TRMPBF
- Part No.:
- LT1812IS5#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LT1812IS5#TRMPBF.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:639
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Product details
Overview
LT1812IS5#TRMPBF from Analog Devices (acquired Linear Technology) is a low-power, high-speed voltage-feedback operational amplifier with shutdown control, 100MHz gain bandwidth, 750V/µs slew rate, and ±3.5V input common-mode range on ±5V supplies. It drives ±3.5V into 100Ω loads and remains stable with 1000pF capacitive loads-ideal for video buffering and active filter design.
For engineers reviewing the LT1812IS5#TRMPBF datasheet, LT1812IS5#TRMPBF pinout, LT1812IS5#TRMPBF application, or LT1812IS5#TRMPBF equivalent, key selection criteria include its 3.6mA max supply current in active mode, 50μA shutdown current, 1.5mV max input offset voltage, unity-gain stability, and operation across –40°C to 85°C in the 5-lead TSOT-23 package.
Technical Context
The LT1812IS5#TRMPBF uses a voltage-feedback topology with current-feedback slewing behavior, achieved via differential input stage driving a 300Ω resistor and mirrored current into a high-impedance gain node. Its compensation dynamically adapts to capacitive loading by sensing the output pole and adding phase-stabilizing zero via an internal RC network.
This architecture enables stable operation with up to 1000pF load at unity gain while maintaining 30ns 0.1% settling time for 5V steps and 8nV/√Hz input noise density at 10kHz-critical for precision high-speed signal conditioning in data acquisition and video systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 100MHz typical - supports closed-loop designs up to 10MHz at gain=10 without bandwidth collapse. |
| Slew Rate | 750V/µs typical - enables clean 5V-step amplification with ≤30ns 0.1% settling under AV = –1. |
| Supply Current (Active) | 3.6mA maximum - allows battery-powered portable instrumentation with low quiescent power. |
| Supply Current (Shutdown) | 50μA typical - reduces system standby power by >98% when idle, with 1μs turn-off delay. |
| Input Offset Voltage | 1.5mV maximum - ensures DC accuracy in sensor front-ends and precision gain stages without trimming. |
| Capacitive Load Drive | Stable with 1000pF - eliminates need for external isolation resistors when driving coaxial cables or ADC input capacitance. |
| Operating Temperature | –40°C to 85°C - qualified for industrial automation and automotive cabin electronics environments. |
Pinout & Package
LT1812IS5#TRMPBF is housed in a 5-lead plastic TSOT-23 (ThinSOT™) package, 1.00mm max height, with exposed pad not connected internally. Pin 1 = VOUT, Pin 2 = V–, Pin 3 = +IN, Pin 4 = –IN, Pin 5 = V+. The shutdown function is not available in this 5-lead variant per datasheet Note 11 - it operates permanently in active mode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (Pin 1) | Amplifier output | Delivers ±3.5V swing into 100Ω on ±5V supplies; capable of sourcing/sinking ±40mA at ±3V. |
| V– (Pin 2) | Negative supply rail | Reference for biasing; must be ≥ –5.5V and ≤ +5.5V relative to V+ per absolute max rating. |
| +IN (Pin 3) | Non-inverting input | Base of NPN/PNP pair enabling bipolar input bias cancellation; accepts ±3.5V CMR on ±5V supplies. |
| –IN (Pin 4) | Inverting input | Same input structure as +IN; differential input withstands ±3V transients without damage. |
| V+ (Pin 5) | Positive supply rail | Accepts up to +6.3V (total supply ≤12.6V); powers internal bias and output stage. |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-feedback architecture with current-feedback slewing | Enables predictable AC response while achieving 750V/µs slew rate independent of closed-loop gain configuration. |
| 1000pF capacitive load stability | Eliminates need for output series termination in cable driver or ADC buffer applications, reducing BOM count and layout complexity. |
| Low 8nV/√Hz input noise density | Preserves SNR in wideband sensor interfaces and pre-amplifiers where signal amplitudes are sub-millivolt. |
| ±3.5V input common-mode range on ±5V supplies | Supports rail-to-rail input signal handling in single-supply derived systems using level-shifting references. |
| Unity-gain stable operation | Permits direct use in voltage follower, active filter integrator, and gain-of-one buffer configurations without external compensation. |
Applications
| Video Line Driver | High-Speed Data Acquisition Front-End |
|---|---|
Use Scenario: Driving 75Ω coaxial video lines in security camera analog outputs or broadcast equipment. IC Role / Device Role / Timing Role: Unity-gain buffer with fast settling and low distortion to preserve composite video timing and amplitude fidelity. Use Value: 0.12% differential gain error and 0.07° differential phase at 1MHz ensure minimal color shift and sync integrity over long cable runs. | Use Scenario: Conditioning signals from precision ADCs sampling at >10MSPS in test equipment or medical imaging. IC Role / Device Role / Timing Role: Anti-aliasing filter amplifier and driver stage preceding SAR or pipeline ADC inputs. Use Value: 30ns 0.1% settling time and 100MHz GBW enable full-scale step response capture without aperture uncertainty degradation. |
| Active Low-Pass Filter (4th Order Butterworth) | Wideband Instrumentation Amplifier Gain Stage |
Use Scenario: Implementing 4MHz cutoff filters in spectrum analyzers or RF receiver IF chains. IC Role / Device Role / Timing Role: Dual-stage op-amp in Sallen-Key or multiple-feedback topology to realize flat passband and steep roll-off. Use Value: 100MHz GBW and 750V/µs slew rate prevent phase nonlinearity and transient overshoot at filter edge frequencies. | Use Scenario: High-gain, low-noise amplification of thermocouple or strain gauge signals before digitization. IC Role / Device Role / Timing Role: First-stage gain block with low input offset and bias current to minimize DC drift and common-mode error. Use Value: 1.5mV max VOS and 4μA max IB ensure <10μV/°C thermal drift contribution and negligible offset growth with source impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4897-1ARJZ-R7 | Lower 1nV/√Hz noise, 220MHz GBW, but only 125V/µs slew rate and no shutdown; requires dual supply for full CMR. | Better for ultra-low-noise preamps; unsuitable for high-slew video or fast-settling DAC buffers. | Select when noise dominates over speed; avoid when >300V/µs slew or 1000pF load drive is required. |
| OPA695IDBVR | Current-feedback architecture, 1.7GHz GBW, 4300V/µs slew rate, but higher 5.5mA supply current and no shutdown. | Superior for >100MHz RF gain blocks; unstable with capacitive loads unless isolated. | Choose for GHz-range signal paths; reject for precision DC-coupled or capacitive-load-sensitive designs. |
Compared with ADA4897-1ARJZ-R7 and OPA695IDBVR, the LT1812IS5#TRMPBF uniquely balances 100MHz bandwidth, 750V/µs slew, 1000pF load stability, and low 3.6mA supply current-making it optimal for cost-sensitive, space-constrained industrial video and data acquisition systems requiring robust DC accuracy and transient response.
Availability
LT1812IS5#TRMPBF is available at Aetrix Electronics and suitable for video line drivers, high-speed data acquisition front-ends, and active filter designs requiring stable component supply across extended temperature ranges.
Supply support for LT1812IS5#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, acquired Linear Technology in 2017 to expand precision and high-speed product portfolios.
The LT1812IS5#TRMPBF belongs to Linear Technology's high-speed op-amp family designed for applications demanding wide bandwidth, fast settling, and robust capacitive load drive-particularly in instrumentation, video, and communications infrastructure.
FAQ
Does LT1812IS5#TRMPBF support shutdown functionality?
No. The LT1812IS5#TRMPBF is packaged in the 5-lead TSOT-23 (S5) configuration, which lacks the SHDN pin. As confirmed in datasheet Note 11, shutdown is only available on the 6-lead (S6) and 8-lead (S8) variants. The LT1812IS5#TRMPBF operates continuously in active mode with 3.6mA typical supply current.
What is the maximum capacitive load LT1812IS5#TRMPBF can drive stably?
The LT1812IS5#TRMPBF is specified stable with up to 1000pF capacitive load in unity-gain configuration, as verified in the datasheet's "Capacitive Loading" section and Typical Performance Characteristic G30. This capability eliminates external isolation resistors in cable driver and ADC input buffer applications.
Can LT1812IS5#TRMPBF operate from a single 5V supply?
Yes. The LT1812IS5#TRMPBF is fully specified for single 5V operation, delivering 1.1V to 3.9V output swing into a 100Ω load referenced to 2.5V. Input common-mode range extends from 1.1V to 3.9V under these conditions, supporting rail-splitter or reference-based signal conditioning.
What is the input offset voltage specification for LT1812IS5#TRMPBF over temperature?
The LT1812IS5#TRMPBF has a maximum input offset voltage of 3.5mV over the full –40°C to 85°C operating range, with a typical drift of 10–30μV/°C. This is documented in the "–40°C ≤ TA ≤ 85°C" electrical characteristics table on page 6 of the datasheet.
Is LT1812IS5#TRMPBF pin-compatible with other members of the LT181x family?
No. The LT1812IS5#TRMPBF uses a 5-pin TSOT-23 footprint (VOUT, V–, +IN, –IN, V+), whereas the LT1813 (dual) and LT1812 variants in S6/S8 packages include additional pins for shutdown and NC functions. PCB layout must be specific to the S5 package; no mechanical or electrical pin compatibility exists across package variants.
LT1812IS5#TRMPBF 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:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 750V/µs
- Gain Bandwidth Product:
- 100 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 900 nA
- Voltage - Input Offset:
- 400 µV
- Current - Supply:
- 3mA
- Current - Output / Channel:
- 60 mA
- Voltage - Supply Span (Min):
- 2.5 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
LT1812IS5#TRMPBF FAQ
1.How can I place an order for LT1812IS5#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1812IS5#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 LT1812IS5#TRMPBF reliable?
The price and inventory of LT1812IS5#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1812IS5#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT1812IS5#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1812IS5#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1812IS5#TRMPBF?
LT1812IS5#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1812IS5#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 LT1812IS5#TRMPBF?
For technical support, including LT1812IS5#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1812IS5#TRMPBF requirements.
6.How does Aetrix verify that LT1812IS5#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT1812IS5#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 LT1812IS5#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT1812IS5#TRMPBF?
All LT1812IS5#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1812IS5#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 LT1812IS5#TRMPBF part is unused and in its original packaging.
Return procedure for LT1812IS5#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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