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Analog Devices Inc. LTC2050CS8#TRPBF
- Part No.:
- LTC2050CS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LTC2050CS8#TRPBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,168
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Product details
Overview
LTC2050CS8#TRPBF from Analog Devices is a zero-drift operational amplifier in an 8-lead SOIC package, designed for precision DC-coupled signal conditioning. It delivers 0.5µV typical input offset voltage, 10nV/°C drift, 1.5µVP-P (0.01Hz–10Hz) noise, and rail-to-rail output swing into 2kΩ loads-enabling high-accuracy thermocouple amplification and strain gauge interfaces.
For engineers reviewing the LTC2050CS8#TRPBF datasheet, LTC2050CS8#TRPBF pinout, LTC2050CS8#TRPBF application, or LTC2050CS8#TRPBF equivalent, key selection criteria include guaranteed 3µV max offset, 30nV/°C max drift, 3MHz gain bandwidth, 140dB open-loop gain, and operation from 2.7V to 6V single supply with no shutdown function in this variant.
Technical Context
The LTC2050CS8#TRPBF implements auto-zeroing architecture with a 7.5kHz internal sampling clock to continuously correct input offset and 1/f noise, achieving near-zero DC error over temperature and time. Its input stage supports common-mode voltage from V– to (V+ – 1.3V), and its enhanced output stage drives rail-to-rail into 2kΩ while maintaining >130dB PSRR and CMRR across frequency.
This variant belongs to the C-grade (0°C to 70°C) LTC2050 family and lacks shutdown functionality-confirmed by absence of SHDN pin in the S8 package configuration and omission of shutdown current specs in its electrical characteristics table. It uses standard SO-8 pinout with NC pins at positions 1 and 7.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±0.5µV typical; enables sub-10µV system-level DC error in precision sensor front-ends without calibration. |
| Offset Drift | 10nV/°C typical; ensures <1µV total drift over 0°C–70°C operating range for stable long-term measurements. |
| Input Noise | 1.5µVP-P (0.01Hz–10Hz); supports high-resolution DC data acquisition with minimal low-frequency interference. |
| Gain Bandwidth Product | 3MHz; allows stable closed-loop gain ≥100 up to ~30kHz for anti-aliasing filter integration. |
| Open-Loop Gain | 140dB typical; provides >100dB loop gain at 100× gain, ensuring <0.001% gain error in instrumentation amplifier configurations. |
| Supply Range | 2.7V to 6V single supply; compatible with 3.3V and 5V systems without level-shifting or dual-rail generation. |
| Output Swing | Rail-to-rail into 2kΩ load; delivers full-scale dynamic range from 0V to V+ − 10mV (low) and V+ − 10mV (high) at 5V supply. |
Pinout & Package
Package: 8-lead plastic SOIC (narrow, 0.150-inch body), JEDEC MS-012, 1.27mm pitch, 5.0mm × 4.0mm footprint, 1.75mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Internally unconnected; must be left floating or tied to ground per layout best practice-no functional impact. |
| 2 | Inverting Input (–IN) | Differential input node; high-impedance (1.7pF capacitance), sensitive to PCB leakage and ESD-requires guard ring in high-Z applications. |
| 3 | Non-Inverting Input (+IN) | Differential input node; matched bias current to –IN; common-mode range extends to V– and within 1.3V of V+. |
| 4 | V– (Ground / Negative Supply) | Reference return for single-supply operation; connects to system ground or negative rail; thermal pad not present in SOIC. |
| 5 | Output (OUT) | Class AB rail-to-rail output capable of sourcing/sinking ±10mA; settles to 0.1% in <2µs for small-signal steps. |
| 6 | V+ (Positive Supply) | Power input; requires local 0.1µF ceramic bypass capacitor placed ≤2mm from pin to minimize PSRR degradation above 10kHz. |
| 7 | No Connect (NC) | Internally unconnected; electrically isolated-no routing or termination required. |
| 8 | Shutdown (SHDN) | Not implemented in LTC2050CS8#TRPBF; pin is unused and must be left floating-no shutdown capability in this variant. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift auto-zeroing | 7.5kHz internal correction cycle eliminates 1/f noise and drift-ensures stable DC accuracy without external calibration. |
| Rail-to-rail output | Drives loads down to 2kΩ from rail to rail, preserving full dynamic range in single-supply 3.3V/5V systems. |
| High PSRR & CMRR | 130dB typical PSRR and CMRR suppress power supply ripple and common-mode interference in noisy industrial environments. |
| Low 0.01Hz–10Hz noise | 1.5µVP-P enables µV-level resolution in slow-sampling applications like electronic scales and medical sensors. |
| Extended input common-mode range | Operates with inputs as low as V– and up to V+ – 1.3V-supports direct connection to grounded sensors and bridge outputs. |
Applications
| Thermocouple Amplifier | Strain Gauge Interface |
|---|---|
Use Scenario: Amplifying microvolt-level K-type thermocouple outputs (≈41µV/°C) with cold-junction compensation over 0°C–100°C. IC Role / Device Role / Timing Role: Primary DC-coupled gain stage with 1001× non-inverting configuration, rejecting common-mode noise from long thermocouple leads. Use Value: 0.5µV offset and 10nV/°C drift limit total measurement error to <0.1°C over full temperature range without trimming. | Use Scenario: Conditioning Wheatstone bridge outputs from metal foil strain gauges (typically 2–10mV full-scale). IC Role / Device Role / Timing Role: First-stage differential amplifier with matched gain-setting resistors to maximize CMRR and minimize offset-induced nonlinearity. Use Value: 1.5µVP-P noise and rail-to-rail swing preserve >18-bit effective resolution in 24-bit ΣΔ ADC systems. |
| Medical Instrumentation Front-End | High-Resolution Data Acquisition |
Use Scenario: Biopotential signal conditioning (ECG, EEG) requiring ultra-low DC drift and sub-µV noise in battery-powered devices. IC Role / Device Role / Timing Role: DC-coupled input buffer and programmable-gain amplifier stage before anti-aliasing filtering and digitization. Use Value: 3µV max offset and 30nV/°C max drift eliminate baseline wander and enable >10-second DC stability in diagnostic-grade monitors. | Use Scenario: Precision DC measurement in automated test equipment (ATE) and calibration standards requiring traceable accuracy. IC Role / Device Role / Timing Role: Reference-grade signal conditioner for 6½-digit multimeters and metrology-grade digitizers. Use Value: 140dB open-loop gain and 130dB PSRR ensure <0.001% gain error and immunity to supply variations during extended calibration cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2051CS8#TRPBF | Dual-channel version in same SO-8 package; shares identical offset (±0.5µV), drift (10nV/°C), and noise (1.5µVP-P) specs but doubles channel count. | Required when two matched zero-drift amps are needed in one package-e.g., instrumentation amp + reference buffer. | Select LTC2051CS8#TRPBF only if dual-channel functionality is essential; otherwise LTC2050CS8#TRPBF offers lower cost and power per channel. |
| LTC1050CS8#PBF | Higher supply current (1.2mA vs. 0.8mA), wider supply range (4.75V–16V), no auto-zero clock feedthrough (chopper-stabilized), but higher 0.1Hz–10Hz noise (2.5µVP-P). | Better suited for high-voltage single-supply systems (>6V) where clock feedthrough must be eliminated-even at expense of higher noise. | Choose LTC1050CS8#PBF only for >6V supplies or strict clock-noise avoidance; LTC2050CS8#TRPBF is superior for 3.3V/5V low-noise DC precision. |
Compared with LTC2051CS8#TRPBF and LTC1050CS8#PBF, the LTC2050CS8#TRPBF provides optimal balance of ultra-low offset, lowest 0.01Hz–10Hz noise, and 3.3V/5V compatibility-making it the preferred choice for single-channel, battery- or USB-powered precision analog front-ends.
Availability
LTC2050CS8#TRPBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, strain gauge interfaces, medical instrumentation front-ends, and high-resolution data acquisition systems requiring stable component supply across production lifecycles.
Supply support for LTC2050CS8#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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2050 product line was engineered specifically for ultra-precision DC signal conditioning-targeting applications demanding sub-microvolt offset stability, nanovolt-per-degree-Celsius drift control, and ultra-low 1/f noise in compact packages.
FAQ
What is the maximum input offset voltage specification for the LTC2050CS8#TRPBF?
The LTC2050CS8#TRPBF has a maximum input offset voltage of ±3µV across its specified 0°C to 70°C temperature range. This guaranteed limit-combined with its 10nV/°C typical drift-ensures predictable DC performance in precision sensor interfaces without post-manufacturing trimming. The ±3µV spec is validated per Analog Devices' production test flow and applies to all C-grade units shipped as LTC2050CS8#TRPBF.
Does the LTC2050CS8#TRPBF include a shutdown feature?
No, the LTC2050CS8#TRPBF does not include a functional shutdown feature. Although the SO-8 package has a pin 8 labeled "SHDN" in the generic LTC2050 pinout, this pin is unused in the C-grade SO-8 variant and must be left floating. Shutdown functionality is only present in 6-lead SOT-23 and SO-8 versions marked with "S6" or "HV" suffixes (e.g., LTC2050HS6#TRPBF). The LTC2050CS8#TRPBF draws 0.8mA continuously under normal operation.
What is the input common-mode voltage range for the LTC2050CS8#TRPBF?
The LTC2050CS8#TRPBF supports an input common-mode voltage range from the negative supply rail (V–) up to (V+ – 1.3V). At a 5V single supply, this means inputs can operate from 0V to 3.7V-enabling direct interfacing with grounded sensors, bridge circuits, and other low-side referenced sources without level-shifting circuitry. This extended range is confirmed in the Electrical Characteristics table under "Common Mode Rejection Ratio" conditions.
Can the LTC2050CS8#TRPBF drive a 2kΩ load rail-to-rail?
Yes, the LTC2050CS8#TRPBF is explicitly characterized to drive 2kΩ loads rail-to-rail. Per the Electrical Characteristics table, its output voltage swing is specified as 2.85V minimum high and 10mV maximum low (at 5V supply, RL = 2kΩ to GND), delivering >99% of the full supply range. This capability is enabled by its enhanced output stage and is critical for maximizing dynamic range in single-supply data acquisition systems using the LTC2050CS8#TRPBF.
Is the LTC2050CS8#TRPBF suitable for automotive applications?
No, the LTC2050CS8#TRPBF is not qualified for automotive use. It is rated for 0°C to 70°C operation (C-grade) and lacks AEC-Q100 qualification. Automotive-grade variants exist-such as the LTC2050HVMPS6#WTRPBF-but these use different packages (6-lead TSOT-23), temperature grades (–55°C to 150°C), and manufacturing controls. For automotive designs, engineers must select explicitly designated W-suffix parts; the LTC2050CS8#TRPBF is intended for commercial and industrial instrumentation only.
LTC2050CS8#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:
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LTC2050CS8#TRPBF FAQ
1.How can I place an order for LTC2050CS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2050CS8#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 LTC2050CS8#TRPBF reliable?
The price and inventory of LTC2050CS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2050CS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2050CS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2050CS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2050CS8#TRPBF?
LTC2050CS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2050CS8#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 LTC2050CS8#TRPBF?
For technical support, including LTC2050CS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2050CS8#TRPBF requirements.
6.How does Aetrix verify that LTC2050CS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2050CS8#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 LTC2050CS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2050CS8#TRPBF?
All LTC2050CS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2050CS8#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 LTC2050CS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC2050CS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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