CONVERTER – ADC

AD7689BCPZRL7 – 16-Bit 250kSPS ADC with SPI Interface – Analog Devices

The AD7689BCPZRL7 from Analog Devices is a high-precision 16-bit analog-to-digital converter (ADC) engineered for demanding measurement applications. This PulSAR® series device delivers exceptional accuracy with flexible input configurations and ultra-low power consumption. PCX exclusively supplies this industrial-grade ADC with guaranteed stock availability and rapid shipping to keep your projects on schedule.

Key Features

• 16-Bit Resolution – High-accuracy conversion for precise signal measurement
• 250kSPS Sampling Rate – Captures rapid signal changes efficiently
• 8 Input Channels – Supports single-ended, differential, or pseudo-differential signals
• Wide Voltage Range – Operates at 2.3V to 5.5V (analog/digital)
• SPI/DSP Interface – Simple microcontroller integration
• Integrated Temperature Sensor – Built-in monitoring capability

Technical Specifications

This SAR architecture ADC features a multiplexed sample-and-hold (MUX-S/H-ADC) configuration with 1:1 S/H-to-ADC ratio. It accepts external or internal references and operates across an industrial temperature range (-40°C to 85°C). The compact 20-LFCSP (4×4) surface-mount package ensures space-efficient PCB designs while maintaining robust performance in harsh environments.

Typical Applications

• Industrial process control systems
• Medical instrumentation and patient monitoring
• Automotive sensor interfaces
• Portable test and measurement equipment
• Energy management systems

About Analog Devices

Analog Devices Inc. (ADI) is a global leader in high-performance semiconductor solutions, renowned for pushing boundaries in signal processing technology. With over 50 years of innovation, ADI’s components set industry benchmarks for precision, reliability, and power efficiency in mission-critical applications.

ADI’s PulSAR® ADCs represent the pinnacle of conversion technology, combining advanced architectures with rigorous quality controls. Their products undergo extensive validation to ensure consistent performance in aerospace, medical, and industrial environments where component failure is not an option.

About Analog-to-Digital Converters (ADCs)

ADCs bridge the physical and digital worlds by transforming continuous analog signals (like temperature, pressure, or voltage) into discrete digital values for processing. They serve as fundamental components in virtually all modern electronic systems, determining measurement accuracy and system responsiveness.

High-resolution ADCs like the AD7689BCPZRL7 enable sophisticated data acquisition where signal integrity is paramount. Selecting the appropriate ADC involves balancing resolution, speed, power consumption, and interface requirements – critical decisions that impact overall system performance and cost efficiency.

Packaging Options

Available in Tape & Reel (TR), Cut Tape (CT), and Digi-Reel® formats for automated assembly compatibility. Please specify packaging preference when ordering.

FAQs

Q: What is the difference between pseudo-differential and fully differential inputs?
A: Pseudo-differential inputs reference a common ground, while fully differential inputs measure between two independent signals – the AD7689 supports both configurations for design flexibility.

Q: Can I use this ADC with 3.3V microcontrollers?
A: Yes, its 2.3V–5.5V digital supply range makes it compatible with common 3.3V logic families without level shifters.

Q: Does the internal temperature sensor require calibration?
A: Factory calibration provides ±2°C accuracy; for higher precision, system-level calibration is recommended.

Q: What is the typical power consumption at maximum sampling rate?
A: Consumes 8mW typical at 250kSPS with 5V supply (refer to PCX datasheet for detailed graphs).

Q: Is this ADC suitable for battery-powered devices?
A: Absolutely – its 0.1μA shutdown current and wide operating voltage enable efficient power management in portable designs.

Q: How does the PulSAR® architecture benefit precision applications?
A: The successive approximation register (SAR) design delivers zero latency and deterministic sampling, critical for real-time control systems.

Note: Product images are representational – refer to datasheet for exact dimensions and pinouts.

Secure your components with confidence! PCX guarantees authentic Analog Devices ADCs with same-day shipping and dedicated technical support. Order your AD7689BCPZRL7 today to avoid project delays!