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Analog Devices Inc. LTC2051HVHMS8#PBF
- Part No.:
- LTC2051HVHMS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2051HVHMS8#PBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:440
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Product details
Overview
LTC2051HVHMS8#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 requiring stable gain and ultra-low DC error.
For engineers reviewing the LTC2051HVHMS8#PBF datasheet, LTC2051HVHMS8#PBF pinout, LTC2051HVHMS8#PBF application, or LTC2051HVHMS8#PBF equivalent, key selection criteria include guaranteed –40°C to 125°C operation, HV-rated supply tolerance (12V), MSOP-8 footprint compatibility, and verified chopper-stabilized performance with <1.5μVP-P (0.01Hz–10Hz) noise.
Technical Context
The LTC2051HVHMS8#PBF employs autozeroing architecture with a 7.5kHz internal sampling clock to continuously correct input offset and drift. Its dual-channel design shares no internal resources between amplifiers, enabling independent operation with matched DC specifications across channels.
It features extended common-mode input range (V– to V+ – 1.3V), rail-to-rail output stage capable of driving 2kΩ loads to both rails, and shutdown functionality (not available in MS8 package - only MS10). The device maintains 130dB PSRR and CMRR over full temperature range, supporting high-precision measurement in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | Max ±3μV - ensures sub-10μV system-level DC error without calibration in 16-bit+ DAQ front-ends. |
| Offset Drift | Max ±30nV/°C - enables stable operation across –40°C to 125°C without thermal recalibration. |
| Supply Range | ±5V (12V total) - supports bipolar sensor interfaces and legacy industrial rails without level-shifting. |
| Input Noise (0.01–10Hz) | 1.5μVP-P - preserves resolution in low-frequency applications like weigh scales and medical ECG front-ends. |
| Gain-Bandwidth Product | 3MHz - sufficient for anti-alias filtering, active RC filters, and closed-loop gains up to ~100 at 30kHz. |
| CMRR / PSRR | 130dB (min) - rejects power supply ripple and common-mode interference in unshielded industrial wiring. |
| Operating Temperature | –40°C to 125°C - qualified for under-hood automotive, motor control feedback, and downhole instrumentation. |
Pinout & Package
Package: 8-lead MSOP (MS8), 3mm × 3mm × 0.8mm, exposed pad connected to V– (pin 4).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Rail-to-rail capable; drives ≥2kΩ load to within 60mV of either rail at ±5V. |
| 2 (–IN A) | Inverting input A | High-impedance node; bias current ≤150pA at 25°C, increases above 70°C due to ESD diode leakage. |
| 3 (+IN A) | Non-inverting input A | Matches –IN A in offset and drift; input common mode extends to V– and up to V+ – 1.3V. |
| 4 (V–) | Negative supply | Reference for exposed thermal pad; must be connected to lowest system potential for thermal and noise integrity. |
| 5 (V+) | Positive supply | Accepts up to +5.5V (or –5.5V when used as negative rail); total V+ to V– ≤12V for HV version. |
| 6 (OUT B) | Amplifier B output | Independent output; identical AC/DC specs to OUT A; no crosstalk specified beyond typical layout isolation. |
| 7 (–IN B) | Inverting input B | Electrically isolated from –IN A; same bias current and noise characteristics as channel A. |
| 8 (+IN B) | Non-inverting input B | Matched to +IN A; enables dual-sensor differential pairs or independent signal paths in compact layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift autozeroing | Continuous correction at 7.5kHz eliminates long-term drift and thermal hysteresis in precision analog front-ends. |
| Rail-to-rail output | Swings within 60mV of supply rails into 2kΩ, maximizing dynamic range in single-supply or split-supply systems. |
| High PSRR/CMRR | 130dB rejection minimizes sensitivity to supply ripple and ground bounce in motor drive or PLC I/O modules. |
| Extended temperature grade | –40°C to 125°C operation validated per AEC-Q200 stress profiles, suitable for engine control and industrial automation. |
| Low 0.01–10Hz noise | 1.5μVP-P enables direct interfacing with microvolt-level sensors (e.g., thermopiles, load cells) without external filtering. |
Applications
| Thermocouple Amplification | Strain Gauge Signal Conditioning |
|---|---|
Use Scenario: Amplifying μV-level Seebeck voltages from K-type thermocouples in furnace controllers with cold-junction compensation. IC Role / Device Role / Timing Role: Primary DC-coupled instrumentation amplifier stage with gain ≥100, rejecting thermocouple wire EMI and ambient thermal gradients. Use Value: 3μV max offset and 30nV/°C drift ensure <±0.5°C measurement accuracy over full industrial temperature range without software calibration. | Use Scenario: Reading Wheatstone bridge outputs from metal foil strain gauges in structural health monitoring systems. IC Role / Device Role / Timing Role: Low-noise, high-CMRR buffer and gain stage before 24-bit ΣΔ ADC; rejects bridge excitation noise and cable-induced common-mode interference. Use Value: 130dB CMRR and 1.5μVP-P noise preserve bridge resolution down to 0.1με, enabling sub-micron deformation detection. |
| Medical ECG Front-End | High-Resolution Data Acquisition |
Use Scenario: First-stage amplification of biopotential signals (0.5–5mV) in portable ECG monitors with battery-powered ±5V rails. IC Role / Device Role / Timing Role: Ultra-low-drift, low-noise instrumentation amplifier core; rejects 50/60Hz mains interference via high CMRR and precise matching. Use Value: Sub-μV offset stability over time and temperature eliminates baseline wander, reducing need for digital high-pass filtering and preserving ST-segment fidelity. | Use Scenario: Precision sensor hub in industrial IoT gateways digitizing multiple analog inputs (pressure, temperature, flow) at 100ksps with 18-bit ENOB. IC Role / Device Role / Timing Role: Dual-channel programmable-gain amplifier (PGA) front-end; one channel for fast settling, one for ultra-low-noise acquisition. Use Value: Matched dual amplifiers enable time-synchronized sampling and channel-to-channel gain/offset calibration, improving system-level linearity to <0.001% FSR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual zero-drift op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2051HMS8#PBF | Same package and pinout; rated for ±5V (10V total), not ±5.5V; max offset drift 50nV/°C vs. 30nV/°C. | Not suitable for 12V total supply designs or applications requiring tighter drift spec over full temperature range. | Select LTC2051HVHMS8#PBF when operating at ±5V rails or requiring guaranteed 30nV/°C drift; choose LTC2051HMS8#PBF only for cost-sensitive 0–70°C designs with ≤10V supply. |
| AD8628ARZ | Single-channel, SO-8; 1μV max offset, 0.002μV/°C drift; 2.7–5.5V supply only; no HV rating. | Requires two devices for dual-channel use; incompatible with ±5V or >5.5V supplies; lacks MSOP-8 footprint. | Use AD8628ARZ only in space-tolerant, single-channel, low-voltage (<5.5V) applications where ultimate drift performance outweighs channel count and supply flexibility. |
Compared with LTC2051HMS8#PBF and AD8628ARZ, the LTC2051HVHMS8#PBF uniquely combines dual-channel operation, ±5V supply support, 125°C qualification, and 30nV/°C drift guarantee - making it the only drop-in solution for high-reliability dual-sensor systems in harsh environments.
Availability
LTC2051HVHMS8#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, strain gauge interfaces, and medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2051HVHMS8#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 semiconductors.
The LTC2051HVHMS8#PBF 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 offset, drift, and low-frequency noise dominate system error budgets.
FAQ
What is the maximum total supply voltage for LTC2051HVHMS8#PBF?
The LTC2051HVHMS8#PBF supports a maximum total supply voltage of 12V, enabling operation from ±5V rails (V+ = +5.5V, V– = –5.5V) or asymmetric supplies up to +5.5V/–6.5V. This HV rating distinguishes it from standard LTC2051 variants limited to 7V total supply, making it suitable for legacy industrial systems using ±5V logic and analog rails.
Does LTC2051HVHMS8#PBF include a shutdown pin?
No, the LTC2051HVHMS8#PBF in the 8-lead MSOP (MS8) package does not include a shutdown pin. Shutdown functionality is only available on the 10-lead MSOP (MS10) variant (e.g., LTC2051HVHMS10#PBF). The MS8 package retains full functionality but operates continuously when powered; design-in requires managing quiescent current (0.75mA per amplifier) in battery-sensitive applications.
What is the input common-mode voltage range for LTC2051HVHMS8#PBF?
The LTC2051HVHMS8#PBF accepts input common-mode voltages from the negative supply rail (V–) up to V+ – 1.3V. At ±5V supplies, this spans –5V to +3.7V, allowing direct interfacing with sensors whose output swings near ground or mid-supply without level-shifting circuitry - critical for low-side current sensing and bridge amplifier topologies.
How does clock feedthrough affect LTC2051HVHMS8#PBF performance?
The LTC2051HVHMS8#PBF uses a 7.5kHz autozeroing clock, resulting in two forms of clock feedthrough: input-referred residue (<1μVRMS) and charge-injection–induced spikes. The latter is minimized by keeping input source impedance <10kΩ. In properly laid-out circuits with low-impedance sources and modest closed-loop gain, clock feedthrough remains below noise floor and does not impact DC or low-frequency accuracy.
Is LTC2051HVHMS8#PBF RoHS compliant and lead-free?
Yes, the LTC2051HVHMS8#PBF is RoHS compliant and lead-free, indicated by the "#PBF" suffix per Analog Devices' packaging nomenclature. It uses matte tin lead finish and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), allowing standard reflow profiles without baking. The exposed pad is solder-plated and must be connected to V– for optimal thermal and electrical performance.
LTC2051HVHMS8#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:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC2051HVHMS8#PBF FAQ
1.How can I place an order for LTC2051HVHMS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2051HVHMS8#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 LTC2051HVHMS8#PBF reliable?
The price and inventory of LTC2051HVHMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2051HVHMS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC2051HVHMS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2051HVHMS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2051HVHMS8#PBF?
LTC2051HVHMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2051HVHMS8#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 LTC2051HVHMS8#PBF?
For technical support, including LTC2051HVHMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2051HVHMS8#PBF requirements.
6.How does Aetrix verify that LTC2051HVHMS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2051HVHMS8#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 LTC2051HVHMS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC2051HVHMS8#PBF?
All LTC2051HVHMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2051HVHMS8#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 LTC2051HVHMS8#PBF part is unused and in its original packaging.
Return procedure for LTC2051HVHMS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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