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Cirrus Logic

CS5570 Datasheet Preview

CS5570 Datasheet

(CS5560 - CS5580) High-Throughput A/D Converters

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CS5560/70/80 Family
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2.56 mm x 1.69 mm
actual size
CS5560/70/80
24-pin SSOP
CS5560
High-Throughput Delta-Sigma A/D Converters
CS5560/70/80
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 CS556x’s
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 – 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).
www.cirrus.com




Cirrus Logic

CS5570 Datasheet Preview

CS5570 Datasheet

(CS5560 - CS5580) High-Throughput A/D Converters

No Preview Available !

CS5560/70/80 Family
CS5560/61 Features
High-speed Delta-Sigma A/D converter
Exceptional 0.9 LSB differential
nonlinearity error
24-bits, no missing codes
www.DataSheet 42U0.cmomicrosecond 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
CS5570/71 Features
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 Features
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
Part
Number
CS5560
CS5561
CS5570
CS5571
CS5580
CS5581
Resolution
24
24
16
16
16
16
Throughput
kSPS
50
50
100
100
200
200
Integral
Linearity
±6 ppm
±6 ppm
±15 ppm
±15 ppm
±60 ppm
±60 ppm
Differential
Linearity
0.9
0.9
0.1
0.1
0.1
0.1
Number of
Channels
1, Differential
1, Single-ended
1, Differential
1, Single-ended
1, Differential
1, Single-ended
Power
Consumption
85 mW
85 mW
70 mW
70 mW
70 mW
70 mW
Package
24 SSOP
24 SSOP
24 SSOP
24 SSOP
24 SSOP
24 SSOP
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.


Part Number CS5570
Description (CS5560 - CS5580) High-Throughput A/D Converters
Maker Cirrus Logic
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CS5570 Datasheet PDF






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