High-Throughput Delta-Sigma A/D Converters

High-Precision ICs Deliver Superior Accuracy for Industrial, Scientific Instrumentation Applications. The CS556x/7x/8x family of 24-bit and 16-bit Delta-Sigma analog-to-digital converters are based upon a unique modulator & filter combination that offers high dynamic range along with the very fast filter settling time of one conversion. These features provide the benefits of Delta-Sigma converters in applications where SAR converters are usually dominant, i.e., designs with multiple inputs. These new Delta-Sigma ADCs provide designers of precision instrumentation, such as industrial process controllers, laboratory instrumentation, medical instrumentation, and high-speed weighing systems, with a significantly higher level of dynamic range and lower sensitivity to system interference while providing high multiplexer throughput. Application Notes  Converting Output Data from Serial to Parallel (pdf) Application Notes  Multiplexing the CS556x7x8x Delta-Sigma ADCs (pdf)

Cirrus P/N	Package	Resolution (bits)	Throughput (kSps)	Integral Linearity	Differential Non-Linearity	Power Consumption (mW)
CS5560-ISZ	24 SSOP	24	50	±6 ppm	0.1 LSB	90
CS5566-ISZ	24 SSOP	24	5	±5 ppm	0.1 LSB	20
CS5571-ISZ	24 SSOP	16	100	±15 ppm	0.1 LSB	60
CS5581-ISZ	24 SSOP	16	200	±60 ppm	0.1 LSB	60
CDB5560  Demo Board w/ Mux   CDK5560  Demo Board w/ CapturePlus™II      Software CapturePlus II Software (zip)    User's Manual CapturePlus II Software (pdf)
CDB5571  Demo Board w/ Mux   CDK5571  Demo Board w/ CapturePlus™II      Software CapturePlus II Software (zip)    User's Manual CapturePlus II Software (pdf)

CS5560 Features   •   High-throughput Delta-Sigma A/D converter   •   Exceptional ±0.1 LSB differential nonlinearity error   •   24-bits, no missing codes   •   20 microsecond conversion rate, no latency   •   High-impedance buffered differential input   •   Signal-to-noise ratio: 110 dB   •   S/(N=D) = 109 dB   •   Digital filter nearly flat to Nyquist frequency   •   1.8V to 3.3V digital and 5V or ±2.5V analog supplies   •   Simple three/four-wire serial digital interface   •   90 mW power consumption (buffers on)   •   24-pin SSOP package; lead-free assembly

CS5566 Features   •   High-throughput Delta-Sigma A/D converter   •   Exceptional ±0.1 LSB differential nonlinearity error   •   24-bits, no missing codes   •   200 microsecond conversion rate, no latency   •   High-impedance buffered differential input   •   Signal-to-noise ratio: 110 dB   •   Digital filter nearly flat to Nyquist frequency   •   1.8V to 3.3V digital and 5V or ±V analog supplies   •   Simple three/four-wire serial digital interface   •   Low 20 mW power consumption   •   24-pin SSOP package; lead-free assembly

CS5571 Features   •   High-throughput Delta-Sigma A/D converter   •   Exceptional ±0.1 LSB differential nonlinearity error   •   16-bits, no missing codes 10 microsecond conversion rate, no latency   •   High-impedance buffered single-ended input   •   Signal-to-noise ratio: 92 dB (Dither On)   •   Digital filter nearly flat to Nyquist frequency   •   1.8V to 3.3V digital and 5V or ±2.5V analog supplies   •   Simple three/four-wire serial digital interface   •   60 mW power consumption (bufferes off)   •   24-pin SSOP package; lead-free assembly

CS5581 Features   •   High-throughput Delta-Sigma A/D converter   •   Exceptional ±0.1 LSB differential nonlinearity error   •   16-bits, no missing codes   •   5 microsecond conversion rate, no latency   •   High-impedance buffered single-ended input   •   Signal-to-noise ratio: 80 dB   •   Digital filter nearly flat to Nyquist frequency   •   1.8V to 3.3V digital and 5V or ±2.5V analog supplies   •   Simple three/four-wire serial digital interface   •   60 mW power consumption (buffers off)   •   24-pin SSOP Package; lead-free assembly