Overview
The AD4130-8BCBZ-RL7, produced by Analog Devices Inc., is an ultra-low power, high-precision measurement solution designed for low-bandwidth battery-operated applications. This 24-bit sigma-delta analog-to-digital converter (ADC) features a fully integrated analog front end (AFE) that includes a multiplexer for up to 16 single-ended or eight differential inputs, a programmable gain amplifier (PGA), an on-chip reference and oscillator, selectable filter options, a smart sequencer, sensor biasing and excitation options, and diagnostics. The device is optimized for extended battery life, with features such as duty cycling and a first-in, first-out (FIFO) buffer, enabling it to operate autonomously and reduce the load on the host processor.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 24 bits |
| Current Consumption (Continuous Conversion) | 28.5 μA (gain = 1), 32.5 μA (gain = 128) |
| Current Consumption (Duty Cycling Mode) | 5 μA (ratio = 1/16), 0.5 μA (standby), 0.1 μA (power-down) |
| Analog Supply Voltage | 1.71 V to 3.6 V |
| Digital Supply Voltage | 1.65 V to 3.6 V |
| Input Configuration | Up to 16 single-ended or 8 differential inputs |
| Package | 35-Ball WLCSP (2.70 mm x 3.56 mm x 0.5 mm) |
| Operating Temperature | -40°C to +105°C |
Key Features
- Ultra-Low Power Consumption: Typical current consumption of 32 μA in continuous conversion mode and lower average currents in duty cycling modes.
- High Precision: 24-bit sigma-delta ADC for accurate measurements.
- Flexible Input Configuration: Supports up to 16 single-ended or 8 differential inputs through a crosspoint multiplexer.
- Programmable Gain Amplifier (PGA): Allows for adjustable gain settings.
- On-Chip Reference and Oscillator: Reduces external component requirements.
- Smart Sequencer and FIFO Buffer: Enables autonomous operation and reduces host processor load.
- Sensor Biasing and Excitation Options: Supports various sensor types.
- Diagnostics and Interrupt Functionality: Enhances error detection and system safety.
Applications
The AD4130-8 is ideal for low-bandwidth battery-operated applications, including:
- Battery-powered medical devices
- Industrial automation and control systems
- Internet of Things (IoT) devices
- Environmental monitoring systems
- Portable instrumentation
Q & A
- What is the typical current consumption of the AD4130-8 in continuous conversion mode?
The typical current consumption is 28.5 μA (gain = 1) and 32.5 μA (gain = 128).
- What are the analog and digital supply voltage ranges for the AD4130-8?
The analog supply voltage ranges from 1.71 V to 3.6 V, and the digital supply voltage ranges from 1.65 V to 3.6 V.
- How many input channels can the AD4130-8 support?
The device can support up to 16 single-ended or 8 differential inputs.
- What is the purpose of the smart sequencer and FIFO buffer in the AD4130-8?
The smart sequencer and FIFO buffer enable autonomous operation, reducing the load on the host processor and allowing the microcontroller to sleep for extended periods.
- What are some of the diagnostic features of the AD4130-8?
The device includes diagnostics and intelligent interrupt functionality for error detection and system safety.
- What is the operating temperature range of the AD4130-8?
The operating temperature range is -40°C to +105°C.
- How does the AD4130-8 extend battery life in battery-operated applications?
The device extends battery life through ultra-low power consumption, duty cycling, and the ability to operate at low supply voltages.
- What type of package does the AD4130-8 come in?
The device comes in a 35-Ball WLCSP (2.70 mm x 3.56 mm x 0.5 mm) package.
- Is there an evaluation board available for the AD4130-8?
Yes, the EVAL-AD4130-8WARDZ evaluation kit is available for evaluating the features of the AD4130-8.
- What software tools are available for configuring and evaluating the AD4130-8?
The AD4130-8 ACE Plugin and LTspice simulation software are available for configuring and evaluating the device.
