My Inquiry
My Account
Analog Devices Inc. LTC2051IS8#TRPBF
- Part No.:
- LTC2051IS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LTC2051IS8#TRPBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,732
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2051IS8#TRPBF from Analog Devices (formerly Linear Technology) is a dual zero-drift operational amplifier in an 8-lead SOIC package, delivering ±3μV max input offset voltage, ±30nV/°C max offset drift, 1.5μVP-P (0.01Hz–10Hz) input-referred noise, and rail-to-rail output swing-designed for precision DC-coupled signal conditioning in thermocouple amplifiers and medical instrumentation.
For engineers reviewing the LTC2051IS8#TRPBF datasheet, LTC2051IS8#TRPBF pinout, LTC2051IS8#TRPBF application, or LTC2051IS8#TRPBF equivalent, key selection criteria include guaranteed –40°C to +85°C operation, 3V/5V single-supply compatibility, 3MHz gain-bandwidth product, shutdown capability (in MS10 variants), and verified performance in low-side current sense and strain gauge front-ends.
Technical Context
The LTC2051IS8#TRPBF employs autozeroing architecture with a 7.5kHz internal sampling clock to continuously correct input offset and drift, enabling near-zero DC error over temperature and supply variations. Its chopper-stabilized core achieves 130dB typical CMRR and PSRR while maintaining 140dB open-loop gain and 2V/μs slew rate.
Input common-mode range extends from V– to V+ – 1.3V, supporting wide dynamic range in single-supply configurations. The output stage drives 2kΩ loads rail-to-rail, with low output impedance (<1Ω) and <15mV low-side swing at full load-critical for high-accuracy sensor interface circuits requiring minimal headroom.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±3μV max - enables sub-10μV system-level DC error in 16-bit+ data acquisition without calibration. |
| Offset Drift | ±30nV/°C max - ensures <0.5μV total drift over –40°C to +85°C, eliminating thermal nulling circuitry. |
| Input Noise (0.01–10Hz) | 1.5μVP-P typ - supports high-resolution DC measurements in electronic scales and medical sensors. |
| Gain-Bandwidth Product | 3MHz - allows stable unity-gain buffering and closed-loop gains up to ~300 with >60° phase margin. |
| Supply Current per Amp | 0.75mA typ at 3V - enables low-power operation in battery-powered portable instrumentation. |
| CMRR / PSRR | 130dB typ - rejects common-mode interference and supply ripple in noisy industrial environments. |
| Operating Temp Range | –40°C to +85°C - qualified for industrial and automotive under-hood sensor signal chains. |
Pinout & Package
Package: 8-lead narrow-body SOIC (S8), 0.150-inch width, JEDEC MS-012 compliant, 3.9mm × 4.9mm footprint, 1.75mm height. RoHS-compliant, lead-free (PBF), tape-and-reel (#TRPBF).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Rail-to-rail capable; drives 2kΩ loads to within 15mV of rails-enables direct ADC interfacing. |
| 2 (–IN A) | Inverting input A | Ultra-low bias current (±50pA typ); critical for high-Z sensor interfaces like thermocouples. |
| 3 (+IN A) | Non-inverting input A | Matches –IN A in offset and drift; supports precision differential sensing with matched resistors. |
| 4 (V–) | Negative supply rail | Reference for both amplifiers; exposed pad (in DFN variants) connects here-thermal path for SOIC is through leads. |
| 5 (+IN B) | Non-inverting input B | Independent channel; identical DC specs to Channel A-enables dual-sensor or reference/differential topology. |
| 6 (–IN B) | Inverting input B | Same ultra-low bias and offset as Pin 2-supports matched dual-channel instrumentation. |
| 7 (OUT B) | Amplifier B output | Functionally identical to Pin 1; allows independent gain stages or parallel noise reduction. |
| 8 (V+) | Positive supply rail | Accepts 2.7V to 5.5V single supply or ±2.75V split supply-simplifies power design in mixed-signal systems. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift autozeroing | Continuous 7.5kHz correction eliminates long-term drift-no external nulling required in 10-year medical devices. |
| Rail-to-rail output | Swings within 15mV of V+ and V– at 2kΩ load-maximizes dynamic range for 3.3V ADCs without level-shifting. |
| High CMRR/PSRR | 130dB rejection minimizes error from EMI coupling and supply noise in motor-drive feedback loops. |
| Low 0.01–10Hz noise | 1.5μVP-P enables <16-bit ENOB in DC-coupled weigh scale front-ends with 100mV full-scale signals. |
| Extended input common-mode | V– to V+ – 1.3V range supports direct connection to shunt-based current monitors operating near ground. |
Applications
| Thermocouple Amplifiers | Electronic Scales |
|---|---|
Use Scenario: Amplifying microvolt-level Seebeck voltages from K-type thermocouples across –200°C to +1350°C, with cold-junction compensation. IC Role / Device Role / Timing Role: Precision DC-coupled first-stage amplifier providing gain ≥100 and rejecting thermopile self-heating errors. Use Value: ±3μV offset ensures <0.3°C absolute accuracy at 0°C reference without software calibration. | Use Scenario: Conditioning mV-level outputs from 350Ω strain gauge bridges in platform scales and industrial load cells. IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation front-end with matched dual channels for ratiometric bridge excitation and sensing. Use Value: 1.5μVP-P noise and ±30nV/°C drift enable 1:100,000 resolution (0.001% FS) over temperature. |
| Medical Instrumentation | Strain Gauge Amplifiers |
Use Scenario: Biopotential signal conditioning in ECG/EEG front-ends where electrode half-cell potentials vary ±300mV. IC Role / Device Role / Timing Role: High-CMRR, rail-to-rail input/output op amp for AC-coupled or DC-coupled biopotential amplification. Use Value: 130dB CMRR suppresses 50/60Hz mains interference even with asymmetric electrode impedances. | Use Scenario: Amplifying differential outputs from quarter-bridge pressure transducers in HVAC and process control. IC Role / Device Role / Timing Role: Dual-channel zero-drift amplifier implementing programmable gain and offset trimming in analog front-end ASICs. Use Value: Matched channel specs ensure <0.01% gain error between signal and reference paths in ratiometric systems. |
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#TRPBF | Identical electrical specs; same SO-8 package but marked IMS8 (industrial temp grade) vs IS8 (also industrial)-same –40°C to +85°C rating and 3V/5V voltage grade. | No functional difference; marking variant only-both meet identical spec limits per datasheet Table 4. | Select LTC2051IS8#TRPBF when sourcing from authorized distributors with traceable lot history; IMS8 may be allocated differently but performs identically. |
| AD8628ARZ | Single zero-drift op amp (not dual); 6μV max offset, 1μVP-P noise (0.1–10Hz), 2.7–5.5V supply, SO-8 package. | Requires two devices for dual-channel use; higher noise density above 0.1Hz reduces low-frequency SNR in slow-scan applications. | Choose AD8628ARZ only if single-channel operation suffices and lower 0.1–10Hz noise is prioritized over guaranteed dual-channel matching. |
Compared with LTC2051IMS8#TRPBF, LTC2051IS8#TRPBF offers identical performance and qualification-differing only in part marking convention-not electrical behavior. Versus AD8628ARZ, LTC2051IS8#TRPBF provides true dual-channel matching, lower 0.01Hz–10Hz noise, and guaranteed industrial temperature operation without derating.
Availability
LTC2051IS8#TRPBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, electronic scales, and medical instrumentation requiring stable component supply with guaranteed –40°C to +85°C operation and long-term DC accuracy.
Supply support for LTC2051IS8#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 backward compatibility for all LTC precision analog products.
The LTC2051 series belongs to Linear's zero-drift op amp family, engineered specifically for DC-accurate, low-noise sensor signal conditioning in industrial, medical, and test equipment where offset drift and 1/f noise dominate error budgets.
FAQ
What is the maximum input offset voltage specification for LTC2051IS8#TRPBF?
The maximum input offset voltage for LTC2051IS8#TRPBF is ±3μV across the full –40°C to +85°C operating temperature range, as specified in the Electrical Characteristics table (Note 2). This value is guaranteed by design and applies to both amplifier channels. The typical offset is ±0.5μV, making LTC2051IS8#TRPBF suitable for applications demanding sub-microvolt DC accuracy without trimming.
Does LTC2051IS8#TRPBF support single-supply operation?
Yes, LTC2051IS8#TRPBF supports true single-supply operation from 2.7V to 5.5V. Its input common-mode range extends from V– to V+ – 1.3V, and its rail-to-rail output swings within 15mV of both supply rails at 2kΩ load. This enables direct interfacing with 3.3V or 5V microcontrollers and ADCs without level-shifting circuitry-verified in the datasheet's "Electrical Characteristics" and "Typical Performance Characteristics" sections.
What is the input-referred noise of LTC2051IS8#TRPBF in the 0.01Hz to 10Hz band?
The input-referred noise of LTC2051IS8#TRPBF is 1.5μVP-P (typical) in the 0.01Hz to 10Hz band, measured with RS = 100Ω. This ultra-low 1/f noise performance is critical for precision DC measurements in electronic scales and medical sensors. The value is explicitly listed in the "Electrical Characteristics" table and confirmed in Figure G01 of the datasheet.
Is LTC2051IS8#TRPBF pin-compatible with other packages in the LTC2051 family?
No, LTC2051IS8#TRPBF in the 8-lead SOIC (S8) package is not pin-compatible with MSOP or DFN variants. While all LTC2051 versions share identical pin functions, the S8 package has a different lead pitch (1.27mm) and body size than MS8 (0.65mm pitch) or DD (3×3mm DFN). PCB layout must match the specific package-SOIC footprints cannot accommodate MSOP or DFN without redesign.
What is the gain-bandwidth product and slew rate of LTC2051IS8#TRPBF?
LTC2051IS8#TRPBF has a gain-bandwidth product of 3MHz and a slew rate of 2V/μs, both specified under standard conditions (VS = 3V or ±5V, RL = 10kΩ). These values are consistent across all temperature grades and package types in the LTC2051 family. The 3MHz GBW supports stable closed-loop gains up to ~300 at unity-gain bandwidth, while the 2V/μs slew rate ensures faithful reproduction of step inputs in precision control loops.
LTC2051IS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Chopper (Zero-Drift)
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 90 pA
- Voltage - Input Offset:
- 1 µV
- Current - Supply:
- 1mA (x2 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LTC2051IS8#TRPBF FAQ
1.How can I place an order for LTC2051IS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2051IS8#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 LTC2051IS8#TRPBF reliable?
The price and inventory of LTC2051IS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2051IS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2051IS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2051IS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2051IS8#TRPBF?
LTC2051IS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2051IS8#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 LTC2051IS8#TRPBF?
For technical support, including LTC2051IS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2051IS8#TRPBF requirements.
6.How does Aetrix verify that LTC2051IS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2051IS8#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 LTC2051IS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2051IS8#TRPBF?
All LTC2051IS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2051IS8#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 LTC2051IS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC2051IS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2051IS8#TRPBF Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
