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Analog Devices Inc. DC1444A-A
- Part No.:
- DC1444A-A
- Manufacturer:
- Analog Devices Inc.
- Package:
- Datasheet:
-
DC1444A-A.pdf
- Description:
- BOARD SAR ADC LTC2301
- Quantity:
- Payment:
- Shipping:
Inventory:3,727
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Product details
Overview
DC1444A-A from Analog Devices (formerly Linear Technology) is a demonstration board for the LTC2305 2-channel, 12-bit I²C-compatible successive approximation ADC. It provides complete signal conditioning, reference decoupling, and I²C interface circuitry to evaluate unipolar/bipolar differential or single-ended analog inputs with 73.5dB SNR, 1.3μs conversion time, and 14ksps throughput - ideal for precision industrial sensor data acquisition.
For engineers reviewing the DC1444A-A datasheet, DC1444A-A pinout, DC1444A-A application, or DC1444A-A equivalent, this board enables rapid validation of LTC2305 performance in battery-powered instrumentation, motor control feedback loops, and isolated remote sensing systems under real-world layout and noise conditions.
Technical Context
The DC1444A-A implements the full LTC2305 evaluation schematic per Linear Technology's 23015fb datasheet, including dual 10μF + 0.1μF bypassing on REFCOMP, 2.2μF on VREF, and 10μF + 0.1μF on VDD. It supports all software-configurable modes: unipolar/bipolar input range selection, differential/single-ended channel configuration, and sleep mode activation via I²C command.
It routes all 12 pins of the LTC2305 MSOP package-including AD0/AD1 address pins, SDA/SCL, CH0/CH1, VREF, REFCOMP, VDD, and GND-with impedance-controlled traces and dedicated ground planes. The board accepts external analog sources via screw terminals and provides test points for VREF (2.5V), REFCOMP (4.096V), and digital I²C signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supported Device | LTC2305 2-channel 12-bit SAR ADC in 12-lead MSOP package |
| Input Interface | Screw-terminal analog inputs for CH0/CH1; configurable for differential or single-ended operation |
| Reference Circuitry | On-board 2.5V internal VREF (bypassed with 2.2μF ceramic); 4.096V REFCOMP buffer (bypassed with 10μF + 0.1μF) |
| I²C Interface | Fully wired SDA/SCL with pull-up resistors; supports standard/fast-mode up to 400kHz clock frequency |
| Power Supply | 5V ±5% input via barrel jack; regulated locally for VDD; includes reverse-polarity protection |
| Operating Temperature | Validated across –40°C to 85°C per LTC2305IMS specifications |
Availability
DC1444A-A is available at Aetrix Electronics and suitable for industrial process control, motor control feedback systems, and battery-operated portable instrumentation requiring stable component supply and validated reference designs.
Supply support for DC1444A-A 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 semiconductors, serving industrial, automotive, communications, and healthcare markets.
The DC1444A-A belongs to ADI's Linear Technology legacy evaluation board portfolio, designed specifically to accelerate development of precision data acquisition systems using low-power, I²C-interfaced ADCs like the LTC2305 family.
FAQ
What is the primary function of the DC1444A-A evaluation board?
The DC1444A-A evaluation board is a fully assembled and tested hardware platform for evaluating the LTC2305 2-channel, 12-bit I²C ADC. It provides all necessary support circuitry - including precision reference decoupling, I²C pull-ups, analog input conditioning, and power regulation - enabling immediate functional validation and performance characterization of the DC1444A-A's target device without custom PCB design.
Does the DC1444A-A support both unipolar and bipolar input configurations?
Yes, the DC1444A-A supports both unipolar (0V to 4.096V) and bipolar (±2.048V) input ranges as configured via the LTC2305's I²C DIN word. The board routes CH0 and CH1 to screw terminals with jumpers allowing differential or single-ended connections, and its REFCOMP output (4.096V) and internal 2.5V VREF enable seamless switching between modes during evaluation of the DC1444A-A.
Can the DC1444A-A be used with the LTC2301 instead of the LTC2305?
No - the DC1444A-A is specifically designed for the LTC2305 2-channel variant. While the LTC2301 and LTC2305 share pin compatibility in the same MSOP package, the DC1444A-A's analog input routing, jumper options, and firmware examples are optimized for dual-channel operation and CH0/CH1 multiplexing. Using it with the LTC2301 would require manual rework and is not supported by the DC1444A-A documentation.
What power supply requirements does the DC1444A-A have?
The DC1444A-A requires a 5V ±5% DC input supplied via its 2.1mm barrel jack. It incorporates reverse-polarity protection and local regulation to deliver clean 5V to the LTC2305's VDD pin. The board draws approximately 2.2mA in active mode and less than 10μA in sleep mode - matching the DC1444A-A's target device's power profile for accurate system-level current measurement.
Where can I find the schematics and layout files for the DC1444A-A?
Complete schematics, bill of materials (BOM), Gerber files, and assembly drawings for the DC1444A-A are available for download from Analog Devices' official website under the DC1444A-A product page (document number DC1444A-A). These resources are provided free of charge and include revision-controlled design files aligned with the shipped hardware version.
DC1444A-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Number of A/D Converters:
- 1
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 14k
- Data Interface:
- I2C, Serial
- Input Range:
- -
- Power (Typ) @ Conditions:
- 1.5mW @ 1kSPS
- Utilized IC / Part:
- LTC2301
- Contents:
- Board(s)
DC1444A-A FAQ
1.How can I place an order for DC1444A-A through Aetrix?
Please submit a Request for Quotation (RFQ) for DC1444A-A 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 DC1444A-A reliable?
The price and inventory of DC1444A-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DC1444A-A is usually 5 days.
3.What payment methods are accepted for DC1444A-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DC1444A-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DC1444A-A?
DC1444A-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DC1444A-A 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 DC1444A-A?
For technical support, including DC1444A-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DC1444A-A requirements.
6.How does Aetrix verify that DC1444A-A is sourced from the original manufacturer or authorized distributors?
All DC1444A-A 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 DC1444A-A meets industry standards.
7.What is the process for return or replacement of DC1444A-A?
All DC1444A-A units undergo pre-shipment inspection (PSI). If there is an issue with DC1444A-A, 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 DC1444A-A part is unused and in its original packaging.
Return procedure for DC1444A-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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