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Analog Devices Inc. LTC2057HDD#PBF
- Part No.:
- LTC2057HDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2057HDD#PBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:138
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Product details
Overview
LTC2057HDD#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 equipment. It delivers 4μV max input offset voltage, 0.015μV/°C max drift over –40°C to 125°C, and 200nVP-P DC–10Hz input noise - enabling sub-μV-level measurement accuracy in low-frequency sensor interfaces such as thermocouple amplifiers and strain gauge bridges.
For engineers reviewing the LTC2057HDD#PBF datasheet, LTC2057HDD#PBF pinout, LTC2057HDD#PBF application, or LTC2057HDD#PBF equivalent, key selection criteria include rail-to-rail output swing with V––0.1V to V+–1.5V input common-mode range, 1.5MHz gain-bandwidth product, shutdown mode control via SD/SDCOM pins, and compatibility with ±2.5V to ±30V supplies (4.75V–36V single-ended).
Technical Context
The LTC2057HDD#PBF employs auto-zeroing and chopper stabilization to suppress 1/f noise and offset drift, achieving near-zero long-term drift without external calibration. Its internal 100kHz chopping frequency is actively suppressed to minimize ripple artifacts - typical residual at 100kHz is <1μVRMS.
This architecture enables simultaneous high DC precision and AC performance: 150dB typical open-loop gain, 160dB PSRR, and 150dB CMRR support stable operation in noisy supply and high-common-mode environments, while unity-gain stability and 0.45V/μs slew rate allow use in buffered reference and closed-loop instrumentation designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 4μV maximum - ensures ≤0.0004% error in 1V full-scale precision gain stages. |
| Offset Drift | 0.015μV/°C max - guarantees <0.9μV total drift across –40°C to 125°C operating range. |
| DC–10Hz Noise | 200nVP-P typical - enables resolution of sub-microvolt signals in slow-sampling data acquisition. |
| Gain-Bandwidth | 1.5MHz typical - supports stable closed-loop gains up to 150 at 10kHz, suitable for anti-alias filtering. |
| Supply Range | 4.75V to 36V - operates from single 5V logic rails up to ±15V industrial supplies without level-shifting. |
| PSRR / CMRR | 160dB / 150dB typical - rejects >100 million-fold supply and common-mode interference at DC. |
| Shutdown Current | 9μA max at 125°C - reduces system power by >99% during idle periods in battery-backed instruments. |
Pinout & Package
8-lead (3mm × 3mm) plastic DFN package with exposed pad connected to V–. Thermal resistance θJA = 43°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD (Pin 1) | Shutdown Control Input | Active-high enable; transitions to shutdown when SD–SDCOM > 2V; draws <2μA bias current. |
| –IN (Pin 2) | Inverting Input | Differential input node with 3pF differential capacitance; supports V––0.1V to V+–1.5V common-mode range. |
| +IN (Pin 3) | Non-Inverting Input | Differential input node matched to –IN; enables precision difference amplification and reference buffering. |
| V– (Pin 4) | Negative Supply Rail | Primary ground reference; exposed pad (Pin 9) is internally tied to V– and must be soldered for thermal and electrical integrity. |
| SDCOM (Pin 5) | Shutdown Reference | Reference node for SD threshold; must be biased between V– and V+–2V; sinks 0.5–2μA. |
| V+ (Pin 6) | Positive Supply Rail | Supports up to +36V; PSRR remains >133dB across full 4.75V–36V range. |
| OUT (Pin 7) | Amplifier Output | Rail-to-rail capable; delivers ±15V swing into 1kΩ load with <100mV headroom at 5mA sink/source. |
| NC (Pin 8) | No Connect | Internally unconnected; no routing or grounding required. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Eliminates manual nulling and periodic recalibration in long-duration measurements (e.g., environmental monitoring). |
| Chopping artifact suppression | Reduces 100kHz ripple to <1μVRMS, avoiding aliasing in ADC sampling below 50kHz. |
| Rail-to-rail output + extended input CMR | Enables direct interface to sensors referenced to V– (e.g., low-side current shunts) without level-shifting circuitry. |
| Shutdown mode with dual-pin control | SD/SDCOM interface isolates shutdown logic from supply rails, simplifying digital control in mixed-voltage systems. |
| High PSRR/CMRR over temperature | Maintains >129dB PSRR and >111dB CMRR across –40°C to 125°C, critical for automotive and industrial under-hood applications. |
Applications
| Thermocouple Amplification | Strain Gauge Bridge Interface |
|---|---|
|
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 gain stage with ultra-low offset and drift to preserve absolute temperature accuracy. Use Value: Enables ±0.1°C measurement accuracy without software correction or periodic hardware recalibration. |
Use Scenario: Reading 1–3mV full-scale output from 350Ω foil strain gauges in load cells and pressure transducers. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end with matched input impedance and low 1/f noise for stable bridge excitation. Use Value: Delivers <10ppm linearity error over 10-hour continuous operation, meeting ISO 376 Class 0.02 requirements. |
| High-Resolution Data Acquisition | Reference Buffering |
|
Use Scenario: Front-end conditioning for 24-bit delta-sigma ADCs in portable multimeters and calibration standards. IC Role / Device Role / Timing Role: Anti-alias filter driver and programmable-gain amplifier with guaranteed monotonicity and no phase reversal. Use Value: Supports effective resolution >22 bits at 10SPS with <0.5μV RMS noise floor in DC-coupled mode. |
Use Scenario: Buffering precision voltage references (e.g., LTZ1000, REF5025) to drive ADC reference inputs and DAC feedback networks. IC Role / Device Role / Timing Role: Low-noise, low-drift unity-gain buffer with 150dB open-loop gain ensuring <0.1ppm reference loading error. Use Value: Maintains reference stability within ±0.5ppm over 1000-hour life test, eliminating drift-induced calibration drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA189IDBVR | Lower 1/f noise (140nVP-P), but higher offset drift (0.03μV/°C); no shutdown mode; 36V max supply. | Better for ultra-low-noise audio preamps; unsuitable for high-temp industrial shutdown control. | Select when DC drift is less critical than sub-150nVP-P noise in ambient-temperature lab equipment. |
| AD8628ARZ | Wider temp range (–40°C to 125°C), same 4μV max offset, but lower GBW (2.5MHz) and no shutdown; 36V max supply. | Preferred for space-constrained PCBs needing higher bandwidth; lacks SD/SDCOM interface for power sequencing. | Choose when board area is constrained and shutdown functionality is handled externally via discrete FET control. |
Compared with OPA189IDBVR and AD8628ARZ, the LTC2057HDD#PBF uniquely combines guaranteed 0.015μV/°C drift, integrated shutdown with rail-independent control, and 160dB PSRR - making it the only option qualified for high-reliability, wide-temperature, low-power precision instrumentation where long-term calibration stability is mandatory.
Availability
LTC2057HDD#PBF is available at Aetrix Electronics and suitable for high-resolution data acquisition, reference buffering, and thermocouple amplification requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LTC2057HDD#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 solutions for precision measurement and control.
The LTC2057HDD#PBF belongs to Linear's zero-drift op-amp family designed specifically for applications demanding nanovolt-level DC accuracy, including metrology-grade instrumentation, medical diagnostics, and aerospace sensor signal chains.
FAQ
What is the maximum operating temperature range for the LTC2057HDD#PBF?
The LTC2057HDD#PBF is rated for continuous operation from –40°C to +125°C. This H-grade qualification is confirmed in the Order Information table and Electrical Characteristics section, where all min/max limits labeled with "l" apply across this full range - including 4μV max offset voltage and 0.015μV/°C max drift.
Does the LTC2057HDD#PBF require external capacitors for stability?
No, the LTC2057HDD#PBF is unity-gain stable and does not require external compensation capacitors. The datasheet confirms stability with capacitive loads up to 200pF (Figures G56–G58), and large-signal response testing (Figures G50–G52) shows clean settling without oscillation under standard test conditions.
How is shutdown controlled on the LTC2057HDD#PBF?
Shutdown is controlled differentially between SD (Pin 1) and SDCOM (Pin 5): the amplifier enters shutdown when SD–SDCOM exceeds 2V (VSDH) and exits when the difference falls below 0.8V (VSDL). SDCOM must be biased within V– to V+–2V, and both pins draw <2μA, enabling direct interface to 1.8V/3.3V GPIOs.
What is the input common-mode voltage range of the LTC2057HDD#PBF?
The LTC2057HDD#PBF supports an input common-mode range from V––0.1V to V+–1.5V. This extends 0.1V below the negative rail, enabling direct connection to low-side current sense resistors and grounded thermocouple junctions without level-shifting circuitry.
Is the exposed pad of the LTC2057HDD#PBF electrically connected?
Yes, the exposed pad (Pin 9) is internally connected to V– and must be soldered to a PCB thermal pad tied to the system ground plane or negative supply. The Absolute Maximum Ratings and Pin Configuration diagrams explicitly state "EXPOSED PAD (PIN 9) IS V–" and "PCB CONNECTION REQUIRED".
LTC2057HDD#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- 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-DFN (3x3)
LTC2057HDD#PBF FAQ
1.How can I place an order for LTC2057HDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2057HDD#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 LTC2057HDD#PBF reliable?
The price and inventory of LTC2057HDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2057HDD#PBF is usually 5 days.
3.What payment methods are accepted for LTC2057HDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2057HDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2057HDD#PBF?
LTC2057HDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2057HDD#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 LTC2057HDD#PBF?
For technical support, including LTC2057HDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2057HDD#PBF requirements.
6.How does Aetrix verify that LTC2057HDD#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2057HDD#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 LTC2057HDD#PBF meets industry standards.
7.What is the process for return or replacement of LTC2057HDD#PBF?
All LTC2057HDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2057HDD#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 LTC2057HDD#PBF part is unused and in its original packaging.
Return procedure for LTC2057HDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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