XD7705B – Analog-to-Digital Converter (ADC) – Xinluda

The Xinluda XD7705B is a 16-bit sigma-delta analog-to-digital converter in a DIP-16 package, featuring two fully differential input channels, programmable gain, and a 3-wire SPI serial interface. It is functionally compatible with the Analog Devices AD7705.

The XD7705B from Xinluda is a 16-bit sigma-delta (Σ-Δ) analog-to-digital converter designed for low-frequency, high-resolution measurement applications. It directly converts the small signals produced by sensors into a digital output, making it well suited for instrumentation and industrial control systems. The XD7705B is supplied in a through-hole DIP-16 package and is functionally compatible with the widely used Analog Devices AD7705.

The device integrates two fully differential analog input channels with a programmable-gain amplifier (gain settings from 1 to 128), allowing it to resolve very small sensor signals without external amplification. On-chip self-calibration and system calibration capabilities eliminate gain and offset errors in both the device and the surrounding signal chain. A 3-wire SPI serial interface handles configuration and data read-back, while the configurable output update rate and signal polarity provide flexibility across a range of measurement tasks.

Key Features

• 16-bit sigma-delta (Σ-Δ) analog-to-digital conversion
• Integral nonlinearity less than 0.01% of full-scale range (FSR)
• Two fully differential analog input channels
• Programmable gain amplifier, gain settings of 1 to 128
• 3-wire SPI serial interface
• On-chip self-calibration and system calibration (eliminates gain and offset errors)
• Operating supply of 3 V or 5 V (±5%)
• Maximum power consumption of 1 mW at 3 V
• Low supply current: typ. 0.32–1.3 mA in normal operation; power-down mode 8 µA max
• Operating temperature range −40°C to +85°C
• DIP-16 through-hole package
• Functionally compatible with Analog Devices AD7705

Applications

• Pressure gauges and load-cell / weighing systems
• Temperature measurement equipment
• Industrial process control and instrumentation
• Weather and environmental monitoring instruments
• Microcontroller-based sensor data acquisition

Why Source XD7705B from Pacific Component Xchange

The XD7705B is a specialty Xinluda ADC with limited authorized-distributor availability, which can make it difficult to source through conventional channels. Pacific Component Xchange is an independent distributor specializing in hard-to-find and obsolete power-management ICs, data-converters, and optocouplers. We help engineers and procurement teams secure scarce parts like the XD7705B with a focus on authenticity, traceability, and reliable global shipping.

Whether you need a single prototype quantity or a full production run, our team can locate verified inventory and provide a fast quote. Request a quote (RFQ) for the XD7705B today and let Pacific Component Xchange handle the sourcing of this hard-to-find component, including obsolete and end-of-life requirements, with authenticity assurance and worldwide delivery.