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Analog Devices Inc. LTC2050IS5#TRMPBF
- Part No.:
- LTC2050IS5#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LTC2050IS5#TRMPBF.pdf
- Description:
- IC OPAMP ZER-DRIFT 1CIR TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,523
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Product details
Overview
LTC2050IS5#TRMPBF from Analog Devices is a zero-drift operational amplifier in 5-lead TSOT-23 package, designed for precision DC-coupled signal conditioning. It delivers 0.5µV typical input offset voltage, 10nV/°C offset drift, and 1.5µVP-P (0.01Hz–10Hz) input-referred noise, operating from 2.7V to 6V single supply. It is used in high-accuracy thermocouple amplifiers and strain gauge front-ends where long-term stability and rail-to-rail output swing are critical.
For engineers reviewing the LTC2050IS5#TRMPBF datasheet, LTC2050IS5#TRMPBF pinout, LTC2050IS5#TRMPBF application, or LTC2050IS5#TRMPBF equivalent, key selection criteria include guaranteed ±3µV max offset, –40°C to 85°C industrial temperature range, 3MHz gain bandwidth, and compatibility with low-impedance loads down to 2kΩ.
Technical Context
The LTC2050IS5#TRMPBF employs auto-zeroing architecture with a 7.5kHz internal sampling clock to continuously correct input offset and 1/f noise. Its input stage supports common-mode voltage from V– to within 1V of V+, and its enhanced output stage drives rail-to-rail into 2kΩ loads with <10mV low-side swing.
It features 140dB typical open-loop gain, >130dB PSRR and CMRR, and operates without shutdown functionality (S5 package lacks SHDN pin). Input bias current remains below ±75pA over temperature, enabling high-impedance sensor interfacing without significant error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±3µV max - ensures ≤3mV output error at unity gain with 1V input, critical for µV-level sensor signals |
| Offset Drift | 10nV/°C typ - contributes <±1.2µV error over 85°C industrial range, enabling stable DC measurements |
| Noise (0.01Hz–10Hz) | 1.5µVP-P - supports 18-bit+ resolution in low-frequency data acquisition systems |
| Gain Bandwidth Product | 3MHz - allows stable closed-loop gain ≥100 up to ~30kHz, suitable for anti-alias filtering |
| Supply Range | 2.7V to 6V - enables direct operation from Li-ion, 3.3V, or 5V rails without regulation |
| Output Swing | Rail-to-rail into 2kΩ - delivers full dynamic range across supply, minimizing headroom loss in single-supply designs |
| PSRR / CMRR | ≥130dB typ - rejects >1M:1 power supply and common-mode interference, essential for noisy industrial environments |
Pinout & Package
Package: 5-Lead Plastic TSOT-23 (S5), 1mm profile, JEDEC MO-193 compliant, thermal resistance θJA = 250°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | Capable of rail-to-rail swing into 2kΩ load; high-current drive supports fast settling into capacitive loads |
| 2 - V– | Negative supply | Reference node for single-supply operation; supports ground-referenced inputs when V– = GND |
| 3 - +IN | Non-inverting input | Low-bias, low-noise node; input capacitance 1.7pF minimizes phase shift in high-Z sensor interfaces |
| 4 - –IN | Inverting input | Differential input terminal; matched to +IN for optimal CMRR and offset cancellation |
| 5 - V+ | Positive supply | Accepts 2.7V–6V; PSRR >130dB ensures minimal supply ripple coupling to output |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Auto-zeroing at 7.5kHz eliminates 1/f noise and drift, enabling true DC accuracy without manual calibration |
| Rail-to-rail output | Swings within 10mV of both rails into 2kΩ, maximizing ADC utilization in single-supply systems |
| High CMRR & PSRR | ≥130dB ensures immunity to ground bounce and supply noise in motor control or PLC I/O modules |
| Low input bias current | ±75pA max over temperature avoids loading errors in high-impedance bridge sensors (>100kΩ) |
| Industrial temp range | –40°C to +85°C operation validated per specification, supporting deployment in uncontrolled enclosures |
Applications
| Thermocouple Amplification | Strain Gauge Signal Conditioning |
|---|---|
|
Use Scenario: Amplifying µV-level K-type thermocouple outputs across 0°C–100°C with cold-junction compensation. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end, rejecting thermopile EMI and supply ripple. Use Value: 0.5µV offset and 10nV/°C drift limit temperature error to <±0.1°C over full range, meeting Class 1 thermocouple standards. |
Use Scenario: Reading Wheatstone bridge outputs from load cells in electronic scales and industrial weighing systems. IC Role / Device Role / Timing Role: Low-noise, high-CMRR differential amplifier driving 24-bit sigma-delta ADCs. Use Value: 1.5µVP-P noise and >130dB CMRR enable 1:1,000,000 dynamic range, resolving sub-gram changes on 100kg platforms. |
| Medical Instrumentation | High-Resolution Data Acquisition |
|
Use Scenario: Front-end amplification of ECG electrode signals with ultra-low DC drift and no baseline wander. IC Role / Device Role / Timing Role: Biopotential amplifier with guarded input and rail-to-rail output into ADC driver stage. Use Value: Sub-µV offset stability eliminates need for AC-coupling and high-pass filtering, preserving true DC cardiac morphology. |
Use Scenario: Precision analog front-end for portable multimeters and automated test equipment requiring 6½-digit accuracy. IC Role / Device Role / Timing Role: Zero-drift buffer and gain stage in multi-range voltage/current measurement paths. Use Value: ±3µV max offset and 3MHz GBW support calibrated 100ppm linearity across decades of input range without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2051IMS8#PBF | Dual-channel version in MS8 package; identical offset specs but higher supply current (1.6mA/channel) | Requires PCB redesign for dual-amplifier functions (e.g., in-amp + reference buffer); no SOT-23 footprint compatibility | Select when two matched zero-drift amps are needed in one package; not a drop-in replacement for LTC2050IS5#TRMPBF |
| LTC1050CS8#PBF | Higher supply current (1.2mA), wider supply range (4.75V–16V), 2.5µVP-P noise (0.1Hz–10Hz), no rail-to-rail output | Better suited for high-voltage single-supply systems; limited output swing reduces usable dynamic range in 3.3V/5V systems | Choose for legacy 5V–15V systems where rail-to-rail output is unnecessary and lower cost is prioritized |
Compared with LTC2050IS5#TRMPBF, LTC2051IMS8#PBF offers channel density at the expense of layout compatibility and power, while LTC1050CS8#PBF trades noise performance and output swing for broader supply flexibility-neither matches the exact combination of SOT-23 size, rail-to-rail drive, and sub-µV stability in the LTC2050IS5#TRMPBF.
Availability
LTC2050IS5#TRMPBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, strain gauge interfaces, and medical instrumentation requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for LTC2050IS5#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2050 family was developed specifically for ultra-precision DC signal conditioning in space-constrained, low-power applications-emphasizing zero-drift stability, rail-to-rail operation, and robustness in harsh electrical environments.
FAQ
What is the maximum input offset voltage specification for LTC2050IS5#TRMPBF?
The LTC2050IS5#TRMPBF has a maximum input offset voltage of ±3µV over the full –40°C to +85°C temperature range, as guaranteed in the datasheet's electrical characteristics table. This value is critical for applications like thermocouple amplification where µV-level errors directly translate to temperature inaccuracies. The typical offset is even lower at ±0.5µV, but design margins must use the max spec. LTC2050IS5#TRMPBF achieves this via continuous auto-zeroing at 7.5kHz.
Does LTC2050IS5#TRMPBF support shutdown mode?
No, LTC2050IS5#TRMPBF does not support shutdown mode because it uses the 5-lead S5 TSOT-23 package, which omits the SHDN pin. Shutdown functionality is only available in the 6-lead S6 and 8-lead SO-8 variants (e.g., LTC2050IS6#TRMPBF). In the LTC2050IS5#TRMPBF, supply current remains at 0.8mA typical under all operating conditions, with no low-power state. This simplifies design for always-on precision sensing.
What is the gain bandwidth product of LTC2050IS5#TRMPBF and how does it affect stability?
The LTC2050IS5#TRMPBF has a gain bandwidth product of 3MHz, meaning it maintains unity-gain stability and supports closed-loop gains up to ~300 at 10kHz. Its internal compensation ensures unconditional stability with capacitive loads ≤100pF. For higher capacitance (e.g., ADC input filters), a series resistor isolates the op-amp output. This GBW enables precise active filtering in DC-accurate applications without sacrificing phase margin. LTC2050IS5#TRMPBF's 3MHz GBW is optimized for bandwidth-limited precision-not speed-critical signal chains.
Can LTC2050IS5#TRMPBF operate from a 3.3V supply?
Yes, LTC2050IS5#TRMPBF is fully specified for operation from 2.7V to 6V single supply, including standard 3.3V rails. At 3.3V, it delivers rail-to-rail output swing (within 10mV of each rail into 2kΩ), maintains >130dB PSRR, and retains its ±3µV max offset. Input common-mode range extends from V– (GND) to within 1V of V+, allowing direct interfacing with 3.3V microcontroller ADC references. LTC2050IS5#TRMPBF is widely deployed in 3.3V portable instrumentation due to this compatibility.
What package type and dimensions does LTC2050IS5#TRMPBF use?
LTC2050IS5#TRMPBF uses the 5-lead Plastic TSOT-23 (S5) package: 2.90mm × 1.60mm footprint, 1.00mm max height, JEDEC MO-193 compliant. Pin pitch is 0.95mm, and the package features a low-profile 1mm thickness ideal for space-constrained PCBs. The "TRMPBF" suffix indicates tape-and-reel packaging with lead-free finish and moisture sensitivity level 1. Thermal resistance is θJA = 250°C/W, requiring minimal copper pour for thermal management in most applications. LTC2050IS5#TRMPBF's S5 package enables high-density placement in portable and modular systems.
LTC2050IS5#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:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 75 pA
- Voltage - Input Offset:
- 0.5 µV
- Current - Supply:
- 800µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
LTC2050IS5#TRMPBF FAQ
1.How can I place an order for LTC2050IS5#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2050IS5#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 LTC2050IS5#TRMPBF reliable?
The price and inventory of LTC2050IS5#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2050IS5#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC2050IS5#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2050IS5#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2050IS5#TRMPBF?
LTC2050IS5#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2050IS5#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 LTC2050IS5#TRMPBF?
For technical support, including LTC2050IS5#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2050IS5#TRMPBF requirements.
6.How does Aetrix verify that LTC2050IS5#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC2050IS5#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 LTC2050IS5#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC2050IS5#TRMPBF?
All LTC2050IS5#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2050IS5#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 LTC2050IS5#TRMPBF part is unused and in its original packaging.
Return procedure for LTC2050IS5#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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