XD1543 – Analog-to-Digital Converter (ADC) – Xinluda

About this part

The XD1543 is a serial-output analog-to-digital converter (ADC) manufactured by Xinluda (Shenzhen Xinluda Information Technology Co., Ltd.), a Chinese IC design house that produces logic circuits, mixed digital-and-analog circuits, communication interfaces, and data-conversion devices. The XD1543 belongs to Xinluda’s “1543” ADC family, a line positioned as a pin- and function-compatible alternative to the industry-standard Texas Instruments TLC1543 serial ADC. Xinluda commonly offers the same die under both an “XD” and an “XL” prefix (for example XL2543 / XD2543 and XL549 / XD549 are both listed in Xinluda’s ADC catalog), so the XD1543 and XL1543 designations refer to the same orderable device.

Because Xinluda parts are produced primarily for the domestic Chinese market and are carried by only a limited number of independent catalogs, the XD1543 is a hard-to-find item with little to no authorized-distributor availability in North America and Europe. Pacific Component Xchange lists this device on a request-for-quote (RFQ) basis and sources it through vetted global supply channels.

Key Features

• Manufacturer: Xinluda (Shenzhen Xinluda Information Technology Co., Ltd.)
• Orderable part number: XD1543 (also offered as XL1543)
• Function: serial-output analog-to-digital converter (ADC), part of Xinluda’s TLC1543-compatible 1543 series
• Architecture: switched-capacitor successive-approximation ADC with on-chip multiplexer and serial (chip-select / I/O-clock / address / data-out) host interface, consistent with the TLC1543 reference device
• Part status: Active production
• Exact package, pin count, resolution, channel count, and full electrical parameters confirmed per lot at time of quotation

The XD1543 is marketed as a drop-in equivalent to the TLC1543; however, exact resolution, channel count, sampling rate, and operating-voltage figures should be confirmed against the manufacturer datasheet and the specific lot/date code at the time of quotation. Contact Pacific Component Xchange for the verified package option, pinout, and parametric data for your application before designing in.

Applications

• Multi-channel data acquisition and analog signal sampling
• Sensor and instrumentation front ends interfacing to a host microcontroller serial port
• Cost-sensitive board designs originally built around TLC1543-class serial ADCs
• Maintenance, repair, and end-of-line production builds requiring TLC1543-compatible replacements

Why Source XD1543 from Pacific Component Xchange

Pacific Component Xchange is an independent distributor focused on hard-to-find data-conversion ICs, power-management devices, and mixed-signal parts from manufacturers like Xinluda that are difficult to obtain through mainstream franchised channels. For the XD1543 we offer:

• Hard-to-find and obsolete sourcing – access to global inventory for low-availability Xinluda parts that authorized distributors do not stock.
• Authenticity and quality assurance – inspection and verification processes to confirm genuine, correctly marked devices.
• Confirmed specifications – we verify package, marking, and date code against the manufacturer datasheet before shipment – no guesswork.
• Global shipping – worldwide fulfillment with responsive RFQ turnaround.

Request a quote for the XD1543 today. Tell us your required quantity, target package, and date-code preference, and the Pacific Component Xchange sourcing team will respond with availability, lead time, and pricing.