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Analog Devices Inc. LTC2051HVCMS8#PBF
- Part No.:
- LTC2051HVCMS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2051HVCMS8#PBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,257
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Product details
Overview
LTC2051HVCMS8#PBF from Analog Devices (formerly Linear Technology) is a dual zero-drift operational amplifier in an 8-lead MSOP package, designed for precision DC-coupled signal conditioning. It delivers maximum input offset voltage of 3μV, max offset drift of 30nV/°C, rail-to-rail output swing, and operates from ±5V supplies (12V total). It is used in thermocouple amplifiers, strain gauge interfaces, and high-resolution data acquisition systems where long-term DC stability is critical.
For engineers reviewing the LTC2051HVCMS8#PBF datasheet, LTC2051HVCMS8#PBF pinout, LTC2051HVCMS8#PBF application, or LTC2051HVCMS8#PBF equivalent, key selection criteria include guaranteed HV supply capability (±5V), MSOP-8 footprint compatibility, low 1.5μVP-P (0.01Hz–10Hz) noise, and extended common-mode input range up to V+ – 1.3V - all validated for 0°C to 70°C operation.
Technical Context
The LTC2051HVCMS8#PBF employs autozeroing architecture with a 7.5kHz internal sampling clock to continuously correct input offset and drift. Its chopper-stabilized core achieves near-zero DC errors while maintaining 3MHz gain-bandwidth product and 2V/μs slew rate.
It features enhanced input stage ESD protection (700V HBM), shutdown control (in MS10 only - not present in MS8 variant), and rail-to-rail output driving capability into 2kΩ loads. Input bias current remains below ±150pA at 25°C and ±3000pA over temperature, supporting high-impedance sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Total Supply Voltage | 12V max - supports ±5V dual-supply operation, enabling true bipolar signal handling without level-shifting. |
| Input Offset Voltage | ±3μV max - ensures sub-microvolt DC accuracy in precision instrumentation front-ends. |
| Offset Drift | ±30nV/°C max - guarantees stable baseline over industrial temperature ranges without recalibration. |
| Input Noise (0.01Hz–10Hz) | 1.5μVP-P typ - enables resolution of nanoamp-level currents in low-frequency sensor applications. |
| CMRR / PSRR | 130dB typ - rejects power supply ripple and common-mode interference in noisy environments like motor drives. |
| Gain-Bandwidth Product | 3MHz - sufficient for anti-alias filtering, active RC filter design, and closed-loop gains up to ~100 at 30kHz. |
| Supply Current | 0.75mA per amplifier typ - balances ultra-low drift with moderate power for battery-aware precision systems. |
Pinout & Package
Package: 8-lead MSOP (MS8), 3mm × 3mm × 0.8mm body, exposed pad connected to V– (Pin 4).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Rail-to-rail capable; drives loads down to 2kΩ while maintaining >±4.75V swing on ±5V supplies. |
| 2 (–IN A) | Inverting input A | High-impedance node; sensitive to PCB layout and source resistance due to clock feedthrough effects. |
| 3 (+IN A) | Non-inverting input A | Matches –IN A in offset and drift; requires symmetrical trace routing to minimize thermal EMF errors. |
| 4 (V–) | Negative supply rail | Internally tied to exposed pad; must be low-impedance connection for thermal and noise performance. |
| 5 (V+) | Positive supply rail | Accepts up to +5.5V; supports single-supply (2.7V–5.5V) or dual-supply (±5V) configurations. |
| 6 (OUT B) | Amplifier B output | Independent output; identical AC/DC specs to OUT A; usable for dual-channel signal paths or paralleling. |
| 7 (–IN B) | Inverting input B | Electrically isolated from Channel A; enables independent differential sensing or feedback loops. |
| 8 (+IN B) | Non-inverting input B | Matched to –IN B; supports fully differential input stages when paired with external resistors. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift autozeroing | Continuous correction at 7.5kHz eliminates aging and thermal drift - no manual nulling required in production systems. |
| Rail-to-rail output | Swings within 15mV of rails into 2kΩ, maximizing dynamic range in low-voltage data acquisition. |
| Extended common-mode range | Inputs operate from V– to V+ – 1.3V, enabling direct interface with sensors referenced to negative rails. |
| Low 1/f noise | 1.5μVP-P (0.01Hz–10Hz) enables stable DC measurements in electronic scales and medical front-ends. |
| High CMRR/PSRR | 130dB rejection minimizes error from supply ripple and ground bounce in shared PCB domains. |
Applications
| Thermocouple Amplifiers | Strain Gauge Amplifiers |
|---|---|
Use Scenario: Amplifying microvolt-level Seebeck voltages from K-type thermocouples across –40°C to +125°C ambient. IC Role / Device Role / Timing Role: Primary DC-coupled instrumentation amplifier with cold-junction compensation interface. Use Value: ±3μV offset and ±30nV/°C drift ensure <±0.1°C measurement uncertainty without software calibration. | Use Scenario: Conditioning Wheatstone bridge outputs from load cells in industrial weighing systems. IC Role / Device Role / Timing Role: Low-noise, high-CMRR first-stage amplifier before 24-bit sigma-delta ADC. Use Value: 1.5μVP-P noise and 130dB CMRR preserve bridge resolution down to 0.001% full scale. |
| Medical Instrumentation | High Resolution Data Acquisition |
Use Scenario: Biopotential signal conditioning (ECG, EEG) requiring ultra-stable baseline and minimal DC drift. IC Role / Device Role / Timing Role: Front-end amplifier in analog signal chain prior to programmable gain and filtering. Use Value: Near-zero drift prevents baseline wander during multi-minute patient monitoring sessions. | Use Scenario: Precision DC voltage measurement in automated test equipment (ATE) with 16+ bit resolution. IC Role / Device Role / Timing Role: Reference buffer and sensor interface amplifier in calibrated multimeter architectures. Use Value: Guaranteed 3μV max offset enables absolute accuracy better than 10ppm of full-scale range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2051CMS8#PBF | Same package and pinout; rated for 0°C to 70°C only; max supply 7V (vs. 12V for HV version). | Not suitable for ±5V operation; limited to single-supply ≤5.5V or dual-supply ≤±3.5V systems. | Select only if operating voltage stays within 3V–5V and temperature stays within commercial range. |
| AD8628ARMZ | Single zero-drift op amp (SO-8); 1μV max offset, 0.005μV/°C drift; 2.7V–5.5V supply only; no ±5V rating. | Requires two devices for dual-channel use; lacks HV supply support and MSOP-8 footprint compatibility. | Choose when single-channel operation suffices and supply is strictly single-ended ≤5.5V. |
Compared with LTC2051CMS8#PBF and AD8628ARMZ, the LTC2051HVCMS8#PBF uniquely supports ±5V operation in the compact MSOP-8 package while guaranteeing sub-3μV offset and 30nV/°C drift - making it the only drop-in solution for dual-supply, space-constrained, high-accuracy analog front-ends.
Availability
LTC2051HVCMS8#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, strain gauge interfaces, and medical instrumentation requiring stable component supply across industrial temperature and voltage ranges.
Supply support for LTC2051HVCMS8#PBF 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.
The LTC2051 series belongs to Linear's precision zero-drift op amp product line, engineered specifically for DC-accurate signal conditioning in instrumentation, industrial sensing, and medical diagnostics where long-term stability outweighs speed requirements.
FAQ
What is the maximum supply voltage rating for LTC2051HVCMS8#PBF?
The LTC2051HVCMS8#PBF is rated for a total supply voltage of 12V, enabling operation with ±5V dual supplies (V+ = +5V, V– = –5V). This distinguishes it from standard LTC2051 variants (e.g., LTC2051CMS8#PBF), which are limited to 7V total supply. Absolute maximum ratings confirm indefinite short-circuit output duration and –0.3V to V+ + 0.3V input voltage range.
Does LTC2051HVCMS8#PBF include a shutdown pin?
No, the LTC2051HVCMS8#PBF in the 8-lead MSOP (MS8) package does not feature a shutdown pin. Shutdown functionality is only available in the 10-lead MSOP (MS10) variant (e.g., LTC2051HVCMS10#PBF). The MS8 version operates continuously when powered and draws 0.75mA per amplifier under normal conditions.
What is the input referred clock feedthrough level of LTC2051HVCMS8#PBF?
The LTC2051HVCMS8#PBF exhibits less than 1μVRMS input-referred clock feedthrough at its 7.5kHz autozeroing frequency. This residual artifact is minimized by using low-impedance source networks (<10kΩ) and optional feedback capacitors - critical for precision DC measurements where spectral purity matters.
Can LTC2051HVCMS8#PBF drive a 2kΩ load rail-to-rail?
Yes, the LTC2051HVCMS8#PBF is specified to drive 2kΩ loads rail-to-rail: output swings to within 15mV of V+ and 15mV above V– on ±5V supplies (i.e., ≥±4.92V). This is confirmed in the Electrical Characteristics table under "Output Voltage Swing High/Low" with RL = 2kΩ to GND (or V–), and applies across the full 0°C to 70°C operating range.
Is LTC2051HVCMS8#PBF compatible with lead-free reflow profiles?
Yes, LTC2051HVCMS8#PBF carries the #PBF suffix indicating lead-free (RoHS-compliant) packaging and is qualified for standard JEDEC J-STD-020D reflow profiles, including peak temperatures up to 260°C. The MS8 package has a θJA of 190°C/W and maximum lead temperature rating of 300°C for 10 seconds during soldering.
LTC2051HVCMS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC2051HVCMS8#PBF FAQ
1.How can I place an order for LTC2051HVCMS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2051HVCMS8#PBF 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 LTC2051HVCMS8#PBF reliable?
The price and inventory of LTC2051HVCMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2051HVCMS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC2051HVCMS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2051HVCMS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2051HVCMS8#PBF?
LTC2051HVCMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2051HVCMS8#PBF 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 LTC2051HVCMS8#PBF?
For technical support, including LTC2051HVCMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2051HVCMS8#PBF requirements.
6.How does Aetrix verify that LTC2051HVCMS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2051HVCMS8#PBF 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 LTC2051HVCMS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC2051HVCMS8#PBF?
All LTC2051HVCMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2051HVCMS8#PBF, 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 LTC2051HVCMS8#PBF part is unused and in its original packaging.
Return procedure for LTC2051HVCMS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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