AD4062BCPZ

The AD4062 is a versatile 16-bit SAR ADC capable of delivering low-power, high-density data acquisition solutions without sacrificing accuracy. This ADC achieves a unique balance between performance and power efficiency, featuring innovative capabilities that enable seamless switching between high-resolution and low-power modes based on real-time system demands. The AD4062 is ideally suited for battery-powered, compact data acquisition and edge sensing applications. Easy-drive features enable efficient AFE design. The small sampling capacitance (3.4 pF) maximizes input impedance, reducing reliance on the high-bandwidth, high-power amplifiers typically required by SAR ADCs. The wide input common-mode range provides inherent support for both differential and single-ended signals. The AD4062 supports microcontrollers with power-down modes and interrupt-driven firmware. Autonomous mode enables out-of-range event detection while the digital host is asleep. Burst averaging mode delivers high-resolution measurements on demand while reducing the computational burden on the host processor. The self-timed device enable signal (DEV_EN) synchronizes AFE device power cycling with ADC sampling instants, optimizing system power consumption while minimizing power-up settling error artifacts. The AD4062 also supports power cycling of the voltage reference and using the supply as the ADC reference voltage (VREF) for further power savings. Device configuration and ADC data readback are supported via a robust 2-wire I3C interface, with CRC supported for all data transfers. The AD4062 is housed in a compact 14-lead lead frame chip scale package [LFCSP] and a 16-ball wafer level chip scale package [WLCSP], and operates over a wide temperature range, making it suitable for a broad range of applications.

Applications

• Battery-powered data acquisition
• Vital signs monitoring
• Biological and chemical analysis
• Geological and seismic sensing
• Motion and robotics

Key features

• Compact size, high performance
• Integral Nonlinearity (INL): ±0.5 LSB max
• SNR: 86.1dB at VREF = 3.3V
• 1.35nJ per conversion
• 405μW power consumption at 300kSPS in sample mode
• 370μW/112μW power consumption at 1MSPS/300kSPS in autonomous mode
• 4.1μW standby power consumption
• Integrated multifunction signal conditioning
• Easy drive characteristics for compact low-power AFE design
• Compatible with differential and single-ended signal chains
• Wide common-mode input range
• Minimized digital host activity and power consumption
• Autonomous sampling with window comparator and interrupt generation
• Averaging filter supporting burst sampling
• Power cycle synchronization for companion devices
• 2-wire I3C interface, compatible with 1.8V to 3.3V logic
• 2.00mm × 2.6mm LFCSP and 1.67mm × 1.97mm WLCSP packages
• Wide operating temperature range: −40°C ~ +125°C