XD548 – Analog-to-Digital Converter (ADC) – Xinluda

The Xinluda XD548 is an 8-bit serial-output successive-approximation (SAR) analog-to-digital converter in a DIP-8 package, featuring a 3-wire microprocessor interface and an on-chip sample-and-hold circuit. Available for RFQ at Pacific Component Xchange.

The Xinluda XD548 is an 8-bit serial analog-to-digital converter (ADC) IC built on a CMOS process using an 8-bit switched-capacitor successive-approximation (SAR) architecture. It connects to common microprocessors and controllers over a simple three-wire serial interface (CS, I/O CLOCK, and DATA OUT), making it well suited to low-cost measurement and control systems. The XD548 is supplied in a conventional through-hole DIP-8 package; a pin-compatible SOP-8 surface-mount variant is offered as the XL549.

With an on-chip sample-and-hold circuit, a built-in 4 MHz system clock, and a reference input that supports ratiometric scaling of the conversion range, the XD548 delivers stable conversions for sensing relatively small analog signals.

Key Features

• 8-bit resolution, switched-capacitor SAR conversion
• 3-wire serial interface to microprocessors/controllers (CS, I/O CLOCK, DATA OUT)
• On-chip sample-and-hold circuit
• Built-in 4 MHz internal system clock (independent of the external I/O clock)
• Conversion time of 17 us (max)
• Sampling rate of 45,500 samples per second
• Total offset error of +/-0.5 LSB (max)
• Wide operating supply voltage of 3 V to 6.5 V
• Ratiometric reference input for conversion-range calibration
• Low typical power consumption (typ. 6 mW; operating supply current 0.8 mA typ., 2.5 mA max)
• Operating temperature range of -40 C to +85 C
• Offered in DIP-8 (XD548) and SOP-8 (XL549) packages

Applications

• Handheld and portable instruments
• Portable monitors and power-management subsystems
• Industrial signal monitoring
• Measurement and control instrumentation
• Low-cost data acquisition and sensor interfacing

Why Source XD548 from Pacific Component Xchange

The XD548 is a specialty Xinluda part with limited authorized-distributor availability, which can make it difficult to source in production quantities through mainstream channels. Pacific Component Xchange is an independent distributor focused on hard-to-find and obsolete power-management ICs, data-converter ICs, and optocouplers. We help engineers and buyers secure parts like the XD548 when standard catalog stock runs dry.

Every order is backed by our commitment to authenticity, inspection, and traceability, and we ship worldwide to keep your builds on schedule. If you need the XD548 in DIP-8 (or the SOP-8 XL549 variant), request a quote today and our sourcing team will respond with availability, lead time, and pricing for your required quantity.