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Analog Devices Inc. LTC2057HS8#PBF
- Part No.:
- LTC2057HS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LTC2057HS8#PBF.pdf
- Description:
- IC OPAMP ZER-DRIFT 1CIRC 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:150
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Product details
Overview
LTC2057HS8#PBF from Analog Devices (formerly Linear Technology) is a high-voltage, zero-drift operational amplifier optimized for precision DC signal conditioning in demanding industrial and test instrumentation systems. It delivers 4μV max input offset voltage, 0.015μV/°C max drift over –40°C to 125°C, 200nVP-P (DC–10Hz) input noise, rail-to-rail output swing, and operates from ±2.375V to ±18V supplies (4.75V–36V total). It is used in thermocouple amplifiers, strain gauge interfaces, and high-resolution data acquisition front-ends.
For engineers reviewing the LTC2057HS8#PBF datasheet, LTC2057HS8#PBF pinout, LTC2057HS8#PBF application, or LTC2057HS8#PBF equivalent, key selection criteria include guaranteed 125°C operation, shutdown mode with SDCOM reference, low 1/f noise suppression, and compatibility with high-common-mode, low-source-impedance sensor interfaces requiring sub-microvolt stability.
Technical Context
The LTC2057HS8#PBF employs auto-zeroing and chopper stabilization to eliminate 1/f noise and minimize long-term drift. Its internal architecture includes dual-stage correction loops that suppress idle tones at the 100kHz chopping frequency to <1µVRMS, enabling clean DC gain without spectral artifacts.
It features a dedicated shutdown control interface (SD/SDCOM pins) with defined thresholds (0.8V low, 2.0V high), allowing precise power gating in battery-powered or thermally constrained systems. Input common-mode range extends to V– – 0.1V and V+ – 1.5V, supporting low-side current sensing and single-supply configurations with ground-referenced inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 4μV maximum - ensures ≤1 LSB error in 20-bit ADC systems with 5V full-scale range |
| Offset Drift | 0.015μV/°C max - enables stable calibration over wide temperature ranges without periodic re-zeroing |
| DC–10Hz Noise | 200nVP-P typical - supports ultra-low-frequency measurements in electronic scales and bridge sensors |
| Gain Bandwidth | 1.5MHz typical - sufficient for closed-loop gains up to 100 with >10kHz signal bandwidth |
| Slew Rate | 0.45V/μs typical - adequate for settling 10V steps within ~22μs while maintaining monotonicity |
| PSRR / CMRR | 160dB / 150dB typical - rejects supply ripple and common-mode interference in noisy industrial environments |
| Supply Range | ±2.375V to ±18V (4.75V–36V) - compatible with standard industrial rails including ±15V and +24V single-supply systems |
Pinout & Package
Package: 8-lead plastic SO (Small Outline), 3.9mm × 4.9mm body, 1.27mm pitch, RoHS-compliant lead-free finish. Exposed pad not present; thermal resistance θJA = 120°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SD) | Shutdown Control Input | Active-high enable referenced to SDCOM; drives amplifier into 5.6μA shutdown current when SD–SDCOM < 0.8V |
| 2 (–IN) | Inverting Input | Differential input node with 3pF differential capacitance; supports V– – 0.1V to V+ – 1.5V common-mode range |
| 3 (+IN) | Non-Inverting Input | Differential input node with 3pF common-mode capacitance; matched bias current to –IN for minimal offset contribution |
| 4 (V–) | Negative Supply Rail | Primary negative power connection; also serves as reference for internal charge pumps and bias networks |
| 5 (SDCOM) | Shutdown Reference | Reference terminal for SD threshold; must be tied to a stable voltage between V– and V+ – 2V |
| 6 (V+) | Positive Supply Rail | Primary positive power connection; supplies internal regulators, amplifiers, and auto-zero circuitry |
| 7 (OUT) | Amplifier Output | Rail-to-rail output capable of sourcing 5mA and sinking 5mA while maintaining <100mV saturation voltage |
| 8 (NC) | No Internal Connection | Unbonded die pad; electrically isolated - no routing or grounding required |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Self-calibrating circuitry eliminates 1/f noise and achieves 0.015μV/°C max drift over full –40°C to 125°C range |
| High PSRR/CMRR | 160dB PSRR and 150dB CMRR ensure immunity to supply ripple and EMI in motor drive or PLC analog I/O modules |
| Rail-to-rail output | Delivers full dynamic range across 0.2V to (V+ – 0.2V) with 5mA load, maximizing ADC utilization in 16–20-bit systems |
| Shutdown interface | Dedicated SD/SDCOM pins allow independent control of power state without disrupting supply sequencing or reference integrity |
| Wide supply range | Operates from ±2.375V to ±18V, enabling direct use with legacy ±15V instrumentation rails and modern 24V industrial buses |
Applications
| Thermocouple Amplification | Strain Gauge Signal Conditioning |
|---|---|
Use Scenario: Amplifying microvolt-level Seebeck voltages from K-type thermocouples in furnace controllers with ambient temperature ranging from –20°C to 85°C. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with cold-junction compensation interface, operating in continuous active mode. Use Value: 4μV max offset and 0.015μV/°C drift prevent >0.1°C measurement error over full system temperature range without software correction. | Use Scenario: Reading Wheatstone bridge outputs from metal foil strain gauges in structural health monitoring sensors exposed to –40°C to 125°C environments. IC Role / Device Role / Timing Role: Low-noise, high-CMRR instrumentation front-end with programmable gain and offset trimming capability. Use Value: 200nVP-P (DC–10Hz) noise and 150dB CMRR reject bridge excitation coupling and electromagnetic pickup in high-impedance bridge arms. |
| High-Resolution Data Acquisition | Low-Side Current Sensing |
Use Scenario: Front-end amplifier for 20-bit SAR ADCs in portable multimeters and calibration standards requiring traceable accuracy. IC Role / Device Role / Timing Role: Ultra-stable buffer and gain stage preceding anti-alias filtering and digitization. Use Value: Sub-microvolt offset stability over time and temperature eliminates need for frequent auto-zero cycles, preserving sampling throughput. | Use Scenario: Measuring load current in 48V telecom power supplies using shunt resistors below 10mΩ, where offset and drift dominate error budget. IC Role / Device Role / Timing Role: Differential amplifier with V–-referenced inputs, rejecting common-mode voltage while amplifying mV-level shunt drops. Use Value: Input common-mode range extending to V– – 0.1V enables accurate sensing at near-ground potentials without level-shifting circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2057HMS8#PBF | Same core specs but in MSOP-8 package (3mm × 3mm); higher θJA = 163°C/W vs SO-8's 120°C/W | Better suited for space-constrained PCBs; requires tighter thermal layout for same power dissipation | Select when board area is critical and thermal management can accommodate higher junction rise |
| AD8628ARZ | Lower supply range (2.7V–5.5V), lower GBW (2.5MHz), no shutdown; 1μV max offset, 0.005μV/°C drift | Targeted at low-voltage, low-power portable instrumentation-not suitable for ±15V or 24V industrial rails | Choose only for battery-powered, single-supply designs where 36V operation and shutdown are unnecessary |
Compared with LTC2057HMS8#PBF, the LTC2057HS8#PBF offers superior thermal performance in SO-8 form factor for high-reliability industrial deployments; versus AD8628ARZ, it provides 10× wider supply range and integrated shutdown-critical for mains-powered test equipment and factory automation I/O modules.
Availability
LTC2057HS8#PBF is available at Aetrix Electronics and suitable for high-precision analog front-ends in test and measurement equipment, industrial process controllers, and aerospace-grade sensor interfaces requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for LTC2057HS8#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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2057 series belongs to ADI's precision zero-drift op-amp product line, designed specifically for applications demanding nanovolt-level DC accuracy, ultra-low drift, and robust operation in harsh electrical and thermal environments.
FAQ
What is the maximum operating temperature rating for the LTC2057HS8#PBF?
The LTC2057HS8#PBF is rated for operation from –40°C to +125°C, as confirmed by its "H" grade designation in the order information table. This extended temperature range is validated across all key parameters including input offset voltage, drift, noise, and PSRR, making LTC2057HS8#PBF suitable for under-hood automotive sensors and industrial motor control cabinets.
Does the LTC2057HS8#PBF support true rail-to-rail input common-mode range?
No, the LTC2057HS8#PBF does not support rail-to-rail input. Its input common-mode range is specified as V– – 0.1V to V+ – 1.5V. While this allows operation down to the negative rail (enabling low-side current sensing), it excludes the top 1.5V of the positive supply - a deliberate design trade-off to maintain high CMRR and low input bias current. This behavior is fully documented in the LTC2057HS8#PBF Electrical Characteristics table.
How does the shutdown function work on the LTC2057HS8#PBF?
The LTC2057HS8#PBF uses a differential shutdown interface: SD and SDCOM pins define an enable threshold. When SD – SDCOM exceeds 2.0V, the amplifier operates normally; when below 0.8V, it enters shutdown with supply current reduced to 5.6μA (max at 125°C). SDCOM must be biased within V– to V+ – 2V - it is not internally tied to any rail. This architecture prevents false triggering during supply ramp-up and supports flexible control logic interfacing.
Can the LTC2057HS8#PBF drive capacitive loads directly?
The LTC2057HS8#PBF is unity-gain stable but exhibits increasing overshoot with capacitive loads above ~100pF, as shown in Figures G56–G58. For loads >200pF, external isolation resistance (e.g., 10–50Ω in series with OUT) is recommended to maintain stability. The device's closed-loop output impedance remains low (<1Ω at DC) but rises with frequency - a key consideration when driving ADC input filters or long cables. This behavior is characterized across all supply voltages in the LTC2057HS8#PBF Typical Performance Characteristics section.
Is the LTC2057HS8#PBF pin-compatible with earlier Linear Technology op-amps like the LT1013?
No, the LTC2057HS8#PBF is not pin-compatible with the LT1013 or other legacy SO-8 op-amps. Its pinout is unique: Pin 1 = SD, Pin 5 = SDCOM, Pin 8 = NC - differing fundamentally from standard dual-op-amp configurations. Attempting drop-in replacement would result in incorrect biasing, disabled shutdown, or output contention. Layout redesign is required to accommodate the LTC2057HS8#PBF's dedicated shutdown interface and non-standard pin mapping.
LTC2057HS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.45V/µs
- Gain Bandwidth Product:
- 1.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 30 pA
- Voltage - Input Offset:
- 0.5 µV
- Current - Supply:
- 900µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 4.75 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LTC2057HS8#PBF FAQ
1.How can I place an order for LTC2057HS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2057HS8#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 LTC2057HS8#PBF reliable?
The price and inventory of LTC2057HS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2057HS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC2057HS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2057HS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2057HS8#PBF?
LTC2057HS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2057HS8#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 LTC2057HS8#PBF?
For technical support, including LTC2057HS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2057HS8#PBF requirements.
6.How does Aetrix verify that LTC2057HS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2057HS8#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 LTC2057HS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC2057HS8#PBF?
All LTC2057HS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2057HS8#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 LTC2057HS8#PBF part is unused and in its original packaging.
Return procedure for LTC2057HS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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