Two/Four/Eight-Channel, 153.6kSPS, Low-Noise, 24-bit/16-bit Delta-Sigma ADCs

The MCP3561/2/4 and the MCP3461/2/4 are 24-bit/16-bit low-noise Delta-Sigma Analog-to-Digital Converters (ADCs), with 2/4/8 single-ended or 1/2/4 differential input channels and programmable data rate of up to 153.6 kSPS. These devices are fully configurable with Oversampling Ratio (OSR) from 32 to 98304 and gain from 1/3X to 64X. Integrated features such as internal oscillator, temperature sensor and burnout sensor detection. These devices offer internal sequencer (SCAN mode) with multiple monitor channels and a 24-bit timer. And they come with a 20 MHz SPI-compatible serial interface. Communication is largely simplified with 8-bit commands.

FEATURES

• 24-bit resolution Delta Sigma ADC

• 1/2/4 differential input channels or 2/4/8 single-ended channels

• Programmable gain: 0.33, 1, 2, 4, 8, 16, 32, 64

• Programmable data rates: up to 153.6 kSPS

• Internal oscillator or external clock selection

• Internal temperature sensor

• Low-noise: 90 nVRMS (gain = 16X,12.5 SPS)

• Ultra-low shutdown current consumption (< 2 μA)

• Extended temperature range: –40°C to +125°C

• Package: 3 mm × 3 mm UQFN-20

APPLICATIONS

• Precision sensor transducers and transmitters

• Factory automation and process controls

• Portable instrumentation

• Temperature measurements

BENEFITS

• Integrated features eliminate the needs of external components and reduce total system BOM

• Advanced security features ensure secure communications and configuration integrity

• Smaller footprint takes less PCB space and reduces design cost