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Analog Devices Inc. LTC2057IDD#TRPBF
- Part No.:
- LTC2057IDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2057IDD#TRPBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,653
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Product details
Overview
LTC2057IDD#TRPBF from Analog Devices (formerly Linear Technology) is a high-voltage, low-noise, zero-drift operational amplifier in an 8-lead 3mm × 3mm DFN package. It delivers 4μV max input offset voltage, 0.015μV/°C max drift, 200nVP-P DC–10Hz input noise, rail-to-rail output swing, and 1.5MHz gain-bandwidth - enabling precision signal conditioning in high-dynamic-range instrumentation and test equipment.
For engineers reviewing the LTC2057IDD#TRPBF datasheet, LTC2057IDD#TRPBF pinout, LTC2057IDD#TRPBF application, or LTC2057IDD#TRPBF equivalent, key selection criteria include its ±2.5V to ±18V supply range (4.75V–36V), V–-rail-inclusive input common-mode range (V– – 0.1V to V+ – 1.5V), shutdown functionality, and guaranteed performance over –40°C to 85°C.
Technical Context
The LTC2057IDD#TRPBF employs auto-zeroing and chopper stabilization to suppress 1/f noise and offset drift, achieving sub-microvolt DC precision without external trimming. Its internal 100kHz chopping frequency is actively suppressed to minimize ripple artifacts at the output.
It integrates dual-stage correction circuitry: a primary chopper stage for continuous offset nulling and a secondary auto-zero stage for long-term drift compensation. This architecture enables unity-gain stability while maintaining 150dB typical CMRR and 160dB typical PSRR across its full 4.75V–36V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 4μV maximum - ensures minimal DC error in precision gain stages and reference buffers. |
| Offset Drift | 0.015μV/°C maximum - guarantees stable calibration over industrial temperature range. |
| DC–10Hz Input Noise | 200nVP-P typical - enables accurate measurement of ultra-low-level sensor signals. |
| Gain-Bandwidth Product | 1.5MHz typical - supports stable closed-loop operation up to ~150kHz at G = 10. |
| Slew Rate | 0.45V/μs typical - sufficient for settling 10-bit accuracy within 1μs in buffered reference applications. |
| Supply Range | 4.75V to 36V - compatible with single-supply 5V/12V/24V and dual-supply ±2.5V/±15V systems. |
| CMRR / PSRR | 150dB / 160dB typical - rejects power supply ripple and common-mode interference in noisy environments. |
Pinout & Package
Package: 8-lead (3mm × 3mm) plastic DFN (DD package); exposed pad (Pin 9) connected to V–; RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD (Pin 1) | Shutdown control input | Active-high enable: drives amplifier into 5.6μA shutdown current when SD–SDCOM ≥ 2V. |
| –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 with 3pF common-mode capacitance; matched bias current to –IN. |
| V– (Pin 4) | Negative supply rail | Primary ground reference; exposed thermal pad (Pin 9) must be soldered to PCB ground plane. |
| SDCOM (Pin 5) | Shutdown reference | Reference terminal for SD threshold; valid range: V– to V+ – 2V. |
| V+ (Pin 6) | Positive supply rail | Accepts up to +36V; PSRR remains >129dB across full 4.75V–36V range. |
| OUT (Pin 7) | Amplifier output | Rail-to-rail capable: swings within 15mV of rails at 1mA load; short-circuit protected. |
| NC (Pin 8) | No connection | Internally unconnected; no electrical function; may be left floating or grounded per layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Combines chopper stabilization and auto-zeroing to eliminate 1/f noise and achieve <0.015μV/°C drift. |
| Rail-to-rail output | Delivers full dynamic range into high-impedance loads with <15mV headroom at 1mA sink/source. |
| V–-rail-inclusive input | Accepts inputs down to V– – 0.1V - enables direct sensing of low-side current shunts without level-shifting. |
| Integrated shutdown | Reduces quiescent current to 5.6μA max (–40°C to 125°C) with logic-compatible SD/SDCOM interface. |
| High PSRR/CMRR | 160dB PSRR and 150dB CMRR ensure immunity to supply noise and ground bounce in mixed-signal systems. |
Applications
| High-Resolution Data Acquisition | Reference Buffering |
|---|---|
Use Scenario: Digitizing thermocouple or strain gauge outputs with 24-bit ΣΔ ADCs requiring sub-μV input-referred error. IC Role / Device Role / Timing Role: Precision front-end amplifier providing gain, filtering, and offset cancellation before ADC sampling. Use Value: 4μV max offset and 200nVP-P low-frequency noise preserve effective resolution beyond 20 bits. | Use Scenario: Buffering precision voltage references (e.g., LTZ1000, REF50xx) driving multiple DACs or ADCs. IC Role / Device Role / Timing Role: Low-drift, low-noise unity-gain buffer isolating reference from load variations. Use Value: 0.015μV/°C drift prevents reference degradation across temperature cycles in metrology-grade instruments. |
| Electronic Scales | Low-Side Current Sense |
Use Scenario: Amplifying mV-level outputs from load cells in industrial weighing systems operating from 12V or 24V supplies. IC Role / Device Role / Timing Role: Instrumentation-grade gain stage with programmable gain (e.g., G = 100) and offset trim. Use Value: 150dB CMRR rejects common-mode noise from motor drives or switching power supplies near the scale. | Use Scenario: Measuring current through shunt resistors placed between load and system ground in battery management or motor control. IC Role / Device Role / Timing Role: Single-supply difference amplifier with input range extending to V– – 0.1V. Use Value: V–-rail-inclusive input eliminates need for level-shifting circuitry, reducing component count and error sources. |
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#TRPBF | Same architecture and pinout; rated for –40°C to 125°C operating range (vs. –40°C to 85°C). | Required for under-hood automotive or high-temp industrial environments where extended temperature validation is mandatory. | Select when ambient operating temperature exceeds 85°C or AEC-Q200 qualification is needed. |
| AD8628ARZ | Lower supply range (2.7V–6V), lower GBW (2MHz), higher input bias current (25pA typ), no shutdown pin. | Suitable only for low-voltage, low-power portable instrumentation - not interchangeable in 12V+/high-voltage designs. | Choose only for battery-powered devices with strict <1mA supply current budgets and ≤6V rails. |
Compared with LTC2057HDD#TRPBF, the LTC2057IDD#TRPBF trades extended temperature rating for cost and qualification simplicity in commercial-grade instrumentation; versus AD8628ARZ, it provides 6× wider supply range and integrated shutdown but requires more board space and power.
Availability
LTC2057IDD#TRPBF is available at Aetrix Electronics and suitable for high-resolution data acquisition, reference buffering, and electronic scales requiring stable component supply across production lifecycles.
Supply support for LTC2057IDD#TRPBF 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 high-performance op-amps, voltage references, and power management ICs.
The LTC2057 series belongs to Linear's zero-drift op-amp product line, designed specifically for DC-critical applications demanding microvolt-level offset stability and nanovolt-level low-frequency noise in harsh industrial and test environments.
FAQ
What is the maximum supply voltage for the LTC2057IDD#TRPBF?
The LTC2057IDD#TRPBF supports a total supply voltage (V+ to V–) up to 40V. Its specified operating supply range is 4.75V to 36V, making it compatible with standard ±15V, +24V, or +36V industrial rails. Exceeding 40V risks permanent damage per Absolute Maximum Ratings.
Does the LTC2057IDD#TRPBF support rail-to-rail input operation?
No, the LTC2057IDD#TRPBF does not support rail-to-rail input. Its input common-mode range extends from V– – 0.1V to V+ – 1.5V - meaning it accepts inputs down to 0.1V below the negative rail but only up to 1.5V below the positive rail. This enables true low-side sensing but excludes direct connection to V+.
How does the shutdown feature of the LTC2057IDD#TRPBF operate?
The LTC2057IDD#TRPBF uses a differential shutdown interface: SD and SDCOM pins define a logic threshold. When SD – SDCOM ≥ 2V, the amplifier enters shutdown mode, reducing supply current to ≤5.6μA. When SD – SDCOM ≤ 0.8V, normal operation resumes. SDCOM must be biased within V– to V+ – 2V.
What is the typical input noise spectral density of the LTC2057IDD#TRPBF at 1kHz?
The LTC2057IDD#TRPBF has a typical input noise voltage spectral density of 11nV/√Hz at 1kHz, as confirmed in the Electrical Characteristics table (page 4). This value remains stable across supply voltages and temperatures, supporting broadband precision signal amplification without significant mid-band noise penalty.
Is the LTC2057IDD#TRPBF pin-compatible with other packages in the LTC2057 family?
Yes, the LTC2057IDD#TRPBF (8-lead DFN) shares identical pin numbering and function with the LTC2057IMS8#TRPBF (8-lead MSOP) and LTC2057IS8#TRPBF (8-lead SO), per Pin Configuration diagrams on page 2 of the datasheet. Signal pins (SD, –IN, +IN, V–, SDCOM, V+, OUT, NC) map one-to-one across these packages.
LTC2057IDD#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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#TRPBF FAQ
1.How can I place an order for LTC2057IDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2057IDD#TRPBF 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#TRPBF reliable?
The price and inventory of LTC2057IDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2057IDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2057IDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2057IDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2057IDD#TRPBF?
LTC2057IDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2057IDD#TRPBF 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#TRPBF?
For technical support, including LTC2057IDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2057IDD#TRPBF requirements.
6.How does Aetrix verify that LTC2057IDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2057IDD#TRPBF 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#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2057IDD#TRPBF?
All LTC2057IDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2057IDD#TRPBF, 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#TRPBF part is unused and in its original packaging.
Return procedure for LTC2057IDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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