www.cirrus.com CS5560/70/80 family high-throughput delta-sigma a/d converters the cs556x/7x/8x family of 24- and 16-bit delta-sigma analog-to-digital converters combine the higher-bandwidth, low-distortion performance of sar converters with high-resolution, low- noise performance typical of delta-sigma adcs. the breakthrough combination of features provides designers of precision instrumentation, such as industrial process controllers, laboratory instrumentation, medical instrumentation, and high-speed weighing systems, with a significantly higher level of measurement accuracy, lower noise and higher throughput. the cs556x provides a much higher level of noise suppression than sar converters, resulting in higher accuracy conversions and reduced post-conversion processing. the family features dnl error as low as 0.04 lsb typical (cs5571), compared to 1 lsb typical within sar converters. in addition, the single-clock latency digital filter allows conversion-rate switching of the input with no loss in throughput. the cs556xs high-throughput precision performance stands out among high-resolution delta- sigma converters. with near-flat digital fir filter characteristics, the cs556x product line achieves unrestricted, wide-bandwidth signal throughput usually seen only in higher-speed sar converters C at resolutions up to 24 bits. with this flat filter, output data is a 1:1 representation of the input signal across the entire frequency range, up to the sampling rate of the converter. in comparison, most delta-sigma converters utilize sinc filters, which attenuate the signal at specific frequencies. other additional key features of the cs556x include: ? high-impedance buffered inputs that simplify external circuitry; ? fully differential inputs that provide the best possible noise rejection and dynamic accuracy, with the ability to measure bipolar signals; and ? self calibration to ensure superior measurement accuracy over variations in supply and temperature. a flexible serial interface eases connections to a variety of microcontrollers without external components (includes slave and self-sequencing master modes). CS5560/70/80 CS5560/70/80 24-pin ssop 2.56 mm x 1.69 mm actual size CS5560
cs5570/71 f e a t u r e s ? high-speed delta-sigma a/d converter ? exceptional 0.1 lsb nonlinearity error ? 16-bits, no missing codes ? 10 microsecond conversion rate, no latency ? self-calibrating architecture maintains accuracy over time and temperature ? high-impedance buffered, differential (cs5570) or single-ended (cs5571) input versions ? signal-to-noise ratio: 98 db (cs5570) ? digital filter near-flat to nyquist sampling rate ? 1.8 v to 3.3 v digital and 5 v or 2.5 v analog supplies ? simple three/four-wire digital interface ? 70 mw power consumption (buffers off) ? 24-pin ssop package; lead-free assembly cs5580/81 f e a t u r e s ? high-speed delta-sigma a/d converter ? exceptional 0.1 lsb nonlinearity error ? 16-bits, no missing codes ? 5 microsecond conversion rate, no latency ? self-calibrating architecture maintains accuracy over time and temperature ? high-impedance buffered, differential (cs5580) or single-ended (cs5581) input versions ? signal-to-noise ratio: 86 db (cs5580) ? digital filter flat to near-nyquist rate ? 1.8 v to 3.3 v digital and 5 v or 2.5 v analog supplies ? simple three/four-wire digital interface ? 70 mw power consumption (buffers off) ? 24-pin ssop package; lead-free assembly www.cirrus.com cirrus logic, inc. 2901 via fortuna austin tx 78746 usa t 512-851-4000 t 800-888-5016 f 512-851-4977 product bulletin 0200-0607-pb ? 2007 cirrus logic, inc. all rights reserved. product information is subject to change without notice. cirrus logic, cirrus, and the cirrus logic logo designs are trademarks of cirrus logic, inc. other brand and product names may be trademarks or service marks of their respective owners. CS5560/70/80 family part number resolution throughput ksps integral linearity differential linearity number of channels power consumption package CS5560 24 50 6 ppm 0.9 1, differential 85 mw 24 ssop cs5561 24 50 6 ppm 0.9 1, single-ended 85 mw 24 ssop cs5570 16 100 15 ppm 0.1 1, differential 70 mw 24 ssop cs5571 16 100 15 ppm 0.1 1, single-ended 70 mw 24 ssop cs5580 16 200 60 ppm 0.1 1, differential 70 mw 24 ssop cs5581 16 200 60 ppm 0.1 1, single-ended 70 mw 24 ssop CS5560/61 f e a t u r e s ? high-speed delta-sigma a/d converter ? exceptional 0.9 lsb differential nonlinearity error ? 24-bits, no missing codes ? 20 microsecond conversion rate, no latency ? self-calibrating architecture maintains accuracy over time and temperature ? high-impedance buffered, differential (CS5560) or single-ended (cs5561) input versions ? signal-to-noise ratio: 109 db (CS5560) ? s/(n+d) = 108 db (CS5560) ? digital filter flat to near-nyquist rate ? 1.8 v to 3.3 v digital and 5 v or 2.5 v analog supplies ? simple three/four-wire digital interface ? 85 mw power consumption ? 24-pin ssop package; lead-free assembly
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