AD4111BCPZ

Analog To Digital Converters (ADC) Overview

The AD4111BCPZ-RL7 is a single-supply, 24-bit sigma-delta analog-to-digital converter (ADC) integrating an analog front end (AFE). It supports ±10 V differential or single-ended voltage inputs and 0 mA to 20 mA current inputs. The device features a maximum channel scan rate of 6.21 kSPS with 161 µs settling time. Key specifications include ±0.06% total unadjusted error for voltage inputs and ±0.08% for current inputs at 25°C. It operates on AVDD (3.0 V to 5.5 V) and IOVDD (2 V to 5.5 V), consuming 3.9 mA total current. The component includes open wire detection, an internal 2.5 V reference, and a 40-lead LFCSP package.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 24-bit ADC with AFE supporting ±10 V voltage and 0–20 mA current inputs
• Open wire detection capability for system-level diagnostics
• Internal 2.5 V bandgap reference with ±5 ppm/°C drift
• Factory calibrated with ±0.06% accuracy at 25°C

Analog To Digital Converters (ADC) Applications

• Programmable Logic Controller (PLC) modules
• Distributed Control System (DCS) modules
• Process control instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix RL7 corresponds to reel packaging requirements. Confirm that the CP-40-151 LFCSP package dimensions match the target PCB footprint. Ensure power supply decoupling capacitors are placed close to REGCAPA and REGCAPD pins as specified in the datasheet.

Analog To Digital Converters (ADC) Selection Notes

Select this part when high impedance (≥1 MΩ) voltage input buffering is required without external components. Choose the AD4111 over the AD4112 if open wire detection functionality is necessary for the application. Verify that the 6.21 kSPS channel scan rate meets the system update speed requirements.

Analog To Digital Converters (ADC) Part Context

This component belongs to the AD411x family of low-power, low-noise 24-bit ADCs from Analog Devices. The AD4111 variant specifically distinguishes itself by including integrated open wire detection logic, whereas other family members like the AD4112 omit this feature while maintaining similar conversion performance.

Analog To Digital Converters (ADC) Replacement Considerations

The AD4112BCPZ-RL7 serves as a direct functional substitute if open wire detection is not required. Both share identical pinouts, packages, and core ADC specifications.