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Analog Devices Inc. LTC2057IDD#PBF
- Part No.:
- LTC2057IDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2057IDD#PBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:397
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Product details
Overview
LTC2057IDD#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 equipment. It delivers 4μV max input offset voltage, 0.015μV/°C drift, 200nVP-P (DC–10Hz) input noise, rail-to-rail output swing, and operates from ±2.375V to ±18V (4.75V–36V total). It is used in thermocouple amplifiers, strain gauge interfaces, and low-side current sensing where long-term stability and microvolt-level accuracy are critical.
For engineers reviewing the LTC2057IDD#PBF datasheet, LTC2057IDD#PBF pinout, LTC2057IDD#PBF application, or LTC2057IDD#PBF equivalent, key selection criteria include its chopper-stabilized architecture enabling ultra-low drift, shutdown mode with <9μA quiescent current, 1.5MHz gain-bandwidth, and compatibility with high-impedance sensor sources requiring V–-rail input common-mode range (V– – 0.1V).
Technical Context
The LTC2057IDD#PBF employs auto-zeroing combined with chopping to suppress 1/f noise and offset drift-achieving sub-microvolt stability over temperature and time. Its internal 100kHz chopping frequency is actively filtered to minimize ripple artifacts at the output.
It features dual-stage correction: a primary chopper loop for continuous offset nulling and a secondary auto-zero path that periodically samples and corrects residual errors. This architecture enables unity-gain stability while maintaining 150dB open-loop gain and 160dB PSRR across its full 4.75V–36V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 4μV maximum - ensures ≤1 LSB error in 20-bit systems with 5V full-scale range |
| Offset Drift | 0.015μV/°C max - guarantees <0.2μV total drift over –40°C to 125°C operating range |
| Input Noise (DC–10Hz) | 200nVP-P typical - enables resolution of sub-100nV DC signals without external filtering |
| Gain-Bandwidth Product | 1.5MHz typical - supports stable closed-loop gain ≥10 up to 150kHz |
| Slew Rate | 0.45V/μs typical - allows 10V step response settling within ~22μs with minimal overshoot |
| PSRR / CMRR | 160dB / 150dB typical - rejects >100 million-fold supply and common-mode interference |
| Supply Range | 4.75V to 36V - supports single-supply 5V/12V/24V and split-supply ±2.375V to ±18V operation |
Pinout & Package
8-lead (3mm × 3mm) plastic DFN package with exposed pad connected to V–. Pin 9 (exposed pad) must be soldered to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD (Pin 1) | Shutdown control input | Active-high logic: drives amplifier into <9μA shutdown when SD–SDCOM ≥2V |
| –IN (Pin 2) | Inverting input | High-impedance node with 3pF differential capacitance; accepts signals down to V– – 0.1V |
| +IN (Pin 3) | Non-inverting input | Matches –IN in bias current (<30pA typ) and common-mode range |
| V– (Pin 4, Pin 9) | Negative supply rail | Exposed pad (Pin 9) is electrically tied to Pin 4 and must be connected to system V– |
| SDCOM (Pin 5) | Shutdown reference | Reference point for SD threshold; valid range = V– to V+ – 2V |
| V+ (Pin 6) | Positive supply rail | Supports up to +36V; PSRR remains >133dB across full supply range |
| OUT (Pin 7) | Amplifier output | Rail-to-rail swing: within 15mV of rails at 1mA load, 100mV at 5mA |
| NC (Pin 8) | No connect | Internally unconnected; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Combines chopping and auto-zeroing to eliminate 1/f noise and achieve <0.015μV/°C drift |
| V–-rail input stage | Input common-mode extends to V– – 0.1V, enabling direct interfacing with ground-referenced sensors |
| Integrated shutdown | Reduces supply current from 1.65mA to <9μA, ideal for battery-powered precision instrumentation |
| High PSRR/CMRR | 160dB PSRR and 150dB CMRR maintain accuracy in noisy industrial power environments |
| Unity-gain stable | Operates robustly at gain = 1 without external compensation, simplifying low-gain sensor front-ends |
Applications
| Thermocouple Amplification | Strain Gauge Signal Conditioning |
|---|---|
Use Scenario: Amplifying μV-level Seebeck voltages from Type-K/J thermocouples across –200°C to +1350°C with cold-junction compensation. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with V–-rail input enabling direct connection to grounded thermocouple junctions. Use Value: 4μV offset and 0.015μV/°C drift limit temperature measurement error to <0.1°C over full industrial range without recalibration. | Use Scenario: Reading bridge outputs from metal foil or semiconductor strain gauges in load cells and pressure transducers. IC Role / Device Role / Timing Role: Low-noise, high-input-impedance buffer and gain stage for Wheatstone bridge outputs with common-mode rejection. Use Value: 200nVP-P (DC–10Hz) noise and 150dB CMRR enable resolution of <1ppm strain changes in 120Ω bridges. |
| Low-Side Current Sensing | Reference Buffering |
Use Scenario: Monitoring motor phase currents or battery discharge paths by measuring mV drops across shunt resistors referenced to system ground. IC Role / Device Role / Timing Role: High-precision difference amplifier with input range extending to V– – 0.1V, eliminating need for level-shifting circuitry. Use Value: Rail-to-rail output and 1.5MHz bandwidth support fast transient detection (e.g., overcurrent events <1μs rise time) with <100nV offset error. | Use Scenario: Buffering precision voltage references (e.g., LTZ1000, REF50xx) to drive ADC reference inputs or DAC feedback networks. IC Role / Device Role / Timing Role: Ultra-stable, low-noise unity-gain follower with negligible loading effect on reference output impedance. Use Value: 150dB open-loop gain and <4μV offset preserve reference accuracy; 0.45V/μs slew rate prevents settling delay in multi-channel data acquisition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2057HDD#PBF | Same silicon, rated for –40°C to 125°C (vs. –40°C to 85°C for LTC2057IDD#PBF); identical electrical specs | Required for under-hood automotive or high-temperature industrial deployments | Select when extended temperature qualification is mandatory; pinout and footprint identical |
| AD8628ARZ | Lower supply range (2.7V–36V), higher input bias current (25pA max), 1.2MHz GBW, no shutdown function | Lacks shutdown mode and V–-rail input; suitable only for non-ground-referenced, lower-temp applications | Choose only if shutdown and extended common-mode range are not required; verify layout compatibility |
Compared with LTC2057HDD#PBF, the LTC2057IDD#PBF trades extended temperature rating for cost and availability in commercial-grade systems; versus AD8628ARZ, it adds shutdown control, V–-rail input, and tighter drift spec-critical for ground-sensed current monitoring and thermocouple circuits.
Availability
LTC2057IDD#PBF is available at Aetrix Electronics and suitable for high-resolution data acquisition, reference buffering, and low-side current sensing requiring stable component supply across industrial, test & measurement, and embedded instrumentation programs.
Supply support for LTC2057IDD#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 acquired Linear Technology in 2017 and maintains its precision analog portfolio, renowned for low-noise, zero-drift, and high-voltage signal conditioning ICs.
The LTC2057 series belongs to Linear's zero-drift op-amp product line, engineered specifically for applications demanding microvolt-level DC accuracy, long-term stability, and immunity to thermal and temporal drift in harsh environments.
FAQ
What is the maximum input offset voltage specification for LTC2057IDD#PBF?
The maximum input offset voltage for LTC2057IDD#PBF is 4μV across the full operating temperature range of –40°C to 85°C. This value is guaranteed by design and verified during production testing. The LTC2057IDD#PBF achieves this via integrated chopping and auto-zeroing circuitry that continuously corrects for offset and 1/f noise, making it suitable for applications requiring sub-microvolt DC precision such as electronic scales and thermocouple amplifiers.
Does LTC2057IDD#PBF support rail-to-rail output swing?
Yes, LTC2057IDD#PBF provides true rail-to-rail output swing. Under no-load conditions, the output reaches within 15mV of both V+ and V– rails. At 1mA sink/source current, it swings to within 35mV of the rails; at 5mA, within 100mV. This capability is confirmed in the Electrical Characteristics table (pages 4–6 of the datasheet) and enables full utilization of the supply range in single-supply configurations-critical for maximizing dynamic range in 16-bit+ data acquisition systems using the LTC2057IDD#PBF.
What is the input common-mode voltage range for LTC2057IDD#PBF?
The input common-mode voltage range for LTC2057IDD#PBF is V– – 0.1V to V+ – 1.5V. This includes the negative rail, allowing direct connection of grounded sensors like thermocouples or shunt resistors in low-side current sensing. The specification is validated across the full supply range (4.75V–36V) and temperature range (–40°C to 85°C), and is explicitly stated in the "Features" and "Electrical Characteristics" sections of the LTC2057IDD#PBF datasheet.
How does the shutdown feature work on LTC2057IDD#PBF?
The LTC2057IDD#PBF shutdown feature is controlled differentially between SD (Pin 1) and SDCOM (Pin 5). When SD–SDCOM exceeds 2V (typical high threshold), the amplifier enters shutdown, reducing supply current to <9μA. When below 0.8V (typical low threshold), it operates normally. SDCOM must be biased within V– to V+ – 2V. This differential interface rejects common-mode noise and enables robust control in noisy industrial environments-distinct from single-pin shutdown schemes found in other op-amps.
What package type is used for LTC2057IDD#PBF?
LTC2057IDD#PBF uses an 8-lead plastic DFN package (3mm × 3mm) with exposed pad (Pin 9), designated as the DD package in Linear/Analog Devices' ordering matrix. The exposed pad is internally connected to V– (Pin 4) and must be soldered to a PCB thermal pad tied to the system V– plane for optimal thermal performance and electrical stability. This package is RoHS-compliant and lead-free, as indicated by the "#PBF" suffix in the part number.
LTC2057IDD#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 ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
LTC2057IDD#PBF FAQ
1.How can I place an order for LTC2057IDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2057IDD#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 LTC2057IDD#PBF reliable?
The price and inventory of LTC2057IDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2057IDD#PBF is usually 5 days.
3.What payment methods are accepted for LTC2057IDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2057IDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2057IDD#PBF?
LTC2057IDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2057IDD#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 LTC2057IDD#PBF?
For technical support, including LTC2057IDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2057IDD#PBF requirements.
6.How does Aetrix verify that LTC2057IDD#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2057IDD#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 LTC2057IDD#PBF meets industry standards.
7.What is the process for return or replacement of LTC2057IDD#PBF?
All LTC2057IDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2057IDD#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 LTC2057IDD#PBF part is unused and in its original packaging.
Return procedure for LTC2057IDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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