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Analog Devices Inc. LTC2057HVHDD#PBF
- Part No.:
- LTC2057HVHDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2057HVHDD#PBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:556
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Product details
Overview
LTC2057HVHDD#PBF from Analog Devices (formerly Linear Technology) is a high-voltage, zero-drift operational amplifier optimized for precision DC signal conditioning in wide-supply industrial and test systems. It delivers 4.5μV max input offset voltage, 0.025μV/°C max drift over –40°C to 125°C, 220nVP-P DC–10Hz input noise, rail-to-rail output swing, and operates from ±2.375V to ±30V (4.75V–60V total supply). It is used in thermocouple amplifiers and low-side current sense circuits requiring stable gain and minimal drift.
For engineers reviewing the LTC2057HVHDD#PBF datasheet, LTC2057HVHDD#PBF pinout, LTC2057HVHDD#PBF application, or LTC2057HVHDD#PBF equivalent, key selection criteria include its 60V max supply rating, DFN-8 (3mm × 3mm) package with exposed V– pad, shutdown control interface, and guaranteed performance across –40°C to 125°C.
Technical Context
The LTC2057HVHDD#PBF employs auto-zeroing and chopper stabilization to suppress 1/f noise and offset drift, achieving sub-microvolt DC accuracy without external trimming. Its internal 100kHz chopping frequency is actively suppressed to minimize ripple artifacts-typical 100kHz output ripple is <1µVRMS.
It features dual-stage correction architecture: a primary chopper loop for fast offset nulling and a secondary auto-zero loop for long-term drift suppression. Input common-mode range extends from V– – 0.1V to V+ – 1.5V, enabling direct sensing at the negative rail in low-side configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 4.75V to 60V total - supports high-voltage industrial sensors and battery-powered test equipment up to ±30V rails. |
| Input Offset Voltage | 5μV max - enables accurate DC measurement of mV-level signals without calibration. |
| Offset Drift | 0.025μV/°C max - ensures <0.75μV total drift over full –40°C to 125°C range, critical for unattended instrumentation. |
| DC–10Hz Noise | 220nVP-P - preserves resolution in slow-sampling applications like electronic scales and strain gauge bridges. |
| Gain Bandwidth | 1.5MHz typ - sufficient for closed-loop gains up to 100 with >10kHz bandwidth in precision instrumentation. |
| PSRR / CMRR | 160dB / 150dB typ - rejects power supply ripple and common-mode interference in noisy plant-floor environments. |
| Slew Rate | 0.45V/μs falling, 1.3V/μs rising - supports fast settling after overload recovery while maintaining stability with capacitive loads. |
Pinout & Package
Package: 8-lead (3mm × 3mm) plastic DFN (DD package) with exposed pad connected to V–. Requires PCB thermal pad connection for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SD | Shutdown Control Input | Active-high enable; asserts shutdown when SD–SDCOM ≥ 2V; draws <2μA in active mode. |
| 2 –IN | Inverting Input | High-impedance node (IB < 455pA max); accepts signals down to V– – 0.1V for true rail-to-rail input operation. |
| 3 +IN | Non-Inverting Input | Matches –IN in bias current and capacitance; enables differential or single-ended configurations with matched error sources. |
| 4 V– | Negative Supply Rail | Primary ground reference; exposed pad (Pin 9) is internally tied to V– and must be soldered to PCB ground plane. |
| 5 SDCOM | Shutdown Reference | Reference point for SD threshold; voltage range = V– to V+ – 2V; must be externally biased for proper shutdown logic. |
| 6 V+ | Positive Supply Rail | Supports up to +60V relative to V–; PSRR remains >136dB across full 4.75V–60V range. |
| 7 OUT | Amplifier Output | Rail-to-rail capable; drives 5mA load within 100mV of rails at 125°C; short-circuit protected indefinitely. |
| 8 NC | No Connect | Unbonded die pad; no internal connection; must remain floating or grounded per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Combines chopper stabilization and auto-zeroing to eliminate 1/f noise and achieve <0.75μV total offset drift over temperature and time. |
| High-voltage operation | Rated for 60V total supply (±30V), enabling direct interface with industrial transducers and HV sensor front-ends without level-shifting. |
| Rail-to-rail output | Delivers full dynamic range into loads ≥1kΩ, maximizing ADC utilization in 16-bit+ data acquisition systems. |
| Shutdown mode | Reduces supply current to ≤11μA (max) at 125°C, supporting low-power wake-on-event architectures in portable test gear. |
| Input common-mode range | Extends to V– – 0.1V, allowing direct low-side current sensing with Kelvin connections and no level-shifter required. |
Applications
| Thermocouple Amplification | Low-Side Current Sensing |
|---|---|
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 ±0.5°C system accuracy without periodic recalibration, leveraging 0.025μV/°C drift and 220nVP-P noise. | Use Scenario: Measuring motor phase current in industrial inverters using shunt resistors placed between load and ground. IC Role / Device Role / Timing Role: High-common-mode-rejection difference amplifier front-end with input referenced to V–. Use Value: Achieves <1% gain error at 100A with 1mΩ shunt by rejecting 48V bus noise via 150dB CMRR and V– – 0.1V input range. |
| Reference Buffering | Electronic Scales |
Use Scenario: Buffering precision voltage references (e.g., LTZ1000, REF50xx) driving multiple ADCs or DACs in metrology-grade equipment. IC Role / Device Role / Timing Role: Low-noise, low-drift unity-gain buffer isolating reference from load-induced errors. Use Value: Maintains reference stability under varying load currents due to 150dB open-loop gain and <5μV offset. | Use Scenario: Conditioning bridge outputs from load cells in commercial weighing platforms with 10,000+ count resolution. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with programmable gain and DC stability. Use Value: Delivers 220nVP-P noise floor and <1ppm/°C gain drift, enabling sub-gram repeatability at ambient temperature swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4522-1ARZ | Lower 1/f noise (120nVP-P), but 36V max supply and no shutdown pin. | Better for ultra-low-noise lab instruments; unsuitable for 48V+ industrial rails or power-gated systems. | Select ADA4522-1ARZ only if supply ≤36V and shutdown is not required. |
| OPA189IDBVR | Wider GBW (12MHz), lower input bias (0.2pA), but 36V max supply and higher 1/f noise (350nVP-P). | Better for high-speed precision filtering; less suitable for DC-critical thermocouple or scale applications. | Select OPA189IDBVR when bandwidth >1MHz is needed and DC drift tolerance >1μV is acceptable. |
Compared with ADA4522-1ARZ and OPA189IDBVR, the LTC2057HVHDD#PBF uniquely combines 60V operation, integrated shutdown, and sub-μV drift-making it the only option among the three qualified for high-voltage, low-drift, power-managed industrial sensing.
Availability
LTC2057HVHDD#PBF is available at Aetrix Electronics and suitable for high-resolution data acquisition, reference buffering, and low-side current sense applications requiring stable component supply across extended temperature and voltage ranges.
Supply support for LTC2057HVHDD#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 LTC2057HV 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 high-voltage industrial environments.
FAQ
What is the maximum supply voltage rating for the LTC2057HVHDD#PBF?
The LTC2057HVHDD#PBF is rated for a total supply voltage of up to 65V (absolute maximum) and operates continuously over 4.75V to 60V. This distinguishes it from the standard LTC2057 (40V absolute max, 36V operating), making the LTC2057HVHDD#PBF suitable for ±30V industrial systems where higher headroom is required for transient protection and margin.
Does the LTC2057HVHDD#PBF require external components for shutdown functionality?
Yes-the LTC2057HVHDD#PBF requires an external reference voltage on the SDCOM pin to define the shutdown threshold. The SD pin triggers shutdown when SD–SDCOM exceeds 2V (high threshold) and releases when below 0.8V (low threshold). SDCOM must be biased within V– to V+ – 2V; typical implementation uses a resistor divider from V+ to V– or a dedicated reference.
How does the LTC2057HVHDD#PBF achieve its 0.025μV/°C max offset drift specification?
The LTC2057HVHDD#PBF achieves its 0.025μV/°C max drift through a dual-stage correction architecture: a high-frequency chopper loop cancels 1/f noise and initial offset, while a slower auto-zero loop continuously corrects residual drift in the amplifier core. This combination is factory-trimmed and tested across –40°C to 125°C, guaranteeing the spec under worst-case conditions-not just typical behavior.
Can the LTC2057HVHDD#PBF drive capacitive loads without instability?
The LTC2057HVHDD#PBF is unity-gain stable but exhibits increasing overshoot with capacitive loads above ~100pF. For loads >200pF, a series resistor (10–50Ω) between OUT and the capacitor is recommended. Data sheet Figure G56–G58 confirms <10% overshoot at 100pF and <25% at 500pF with ±30V supplies-so stability is maintained, but careful layout and minor compensation are advised for heavy capacitive loading.
Is the exposed pad (Pin 9) of the LTC2057HVHDD#PBF electrically connected, and how should it be handled?
Yes-the exposed pad (Pin 9) of the LTC2057HVHDD#PBF is internally connected to the V– supply rail and must be soldered to a PCB copper pour tied to the system V–/ground plane. This connection is mandatory for thermal dissipation (θJA = 43°C/W), electrical noise reduction, and functional reliability. Leaving it unconnected violates Absolute Maximum Ratings and may cause parametric shift or premature failure.
LTC2057HVHDD#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):
- 60 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
LTC2057HVHDD#PBF FAQ
1.How can I place an order for LTC2057HVHDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2057HVHDD#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 LTC2057HVHDD#PBF reliable?
The price and inventory of LTC2057HVHDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2057HVHDD#PBF is usually 5 days.
3.What payment methods are accepted for LTC2057HVHDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2057HVHDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2057HVHDD#PBF?
LTC2057HVHDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2057HVHDD#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 LTC2057HVHDD#PBF?
For technical support, including LTC2057HVHDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2057HVHDD#PBF requirements.
6.How does Aetrix verify that LTC2057HVHDD#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2057HVHDD#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 LTC2057HVHDD#PBF meets industry standards.
7.What is the process for return or replacement of LTC2057HVHDD#PBF?
All LTC2057HVHDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2057HVHDD#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 LTC2057HVHDD#PBF part is unused and in its original packaging.
Return procedure for LTC2057HVHDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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