CS5566-ISZ

CS5566-ISZ Datasheet

CS5566

Part	Datasheet
CS5566-ISZ	CS5566-ISZ (pdf)

Related Parts	Information
CDB5566	CDB5566
CS5566-ISZR	CS5566-ISZR

PDF Datasheet Preview
3/25/08 CS5566 V / 5 V, 5 kSps, 24-bit ADC Features & Description Differential Analog Input On-chip Buffers for High Input Impedance Conversion Time = 200 µS Settles in One Conversion Linearity Error = Signal-to-Noise = 110 dB 24 Bits, No Missing Codes Simple three/four-wire serial interface Power Supply Configurations: - Analog +5V/GND IO +1.8V to +3.3V - Analog ±2.5V IO +1.8V to +3.3V Power Consumption 20 mW 5 kSps The CS5566 is a single-channel, 24-bit analog-to-digital converter capable of 5 kSps conversion rate. The input accepts a fully differential analog input signal. On-chip buffers provide high input impedance for both the AIN inputs and the VREF+ input. This significantly reduces the drive requirements of signal sources and reduces errors due to source impedances. The CS5566 is a delta-sigma converter capable of switching multiple input channels at a high rate with no loss in throughput. The ADC uses a low-latency digital filter architecture. The filter is designed for fast settling and settles to full accuracy in one conversion. The converter's 24-bit data output is in serial form, with the serial port acting as either a master or a slave. The converter is designed to support bipolar, ground-referenced signals when operated from ±2.5V analog supplies. The converter can operate from an analog supply of 0-5V or from ±2.5V. The digital interface supports standard logic operating from or V. ORDERING INFORMATION See Ordering Information on page VREF+ VREF- AIN+ AIN- CS5566 DIGITAL FILTER LOGIC SERIAL INTERFACE SMODE CS SCLK SDO RDY BUFEN OSC/CLOCK GENERATOR DIGITAL CONTROL SLEEP RST CONV BP/UP MCLK VLR2 Preliminary Product Information This document contains information for a new product. Cirrus Logic reserves the right to modify this product without notice. Copyright Cirrus Logic, Inc. 2008 All Rights Reserved MAR ‘08 DS806PP1 3/25/08 CS5566 TABLE OF CONTENTS CHARACTERISTICS AND SPECIFICATIONS 4 ANALOG CHARACTERISTICS 4 SWITCHING CHARACTERISTICS 6 DIGITAL CHARACTERISTICS 10 DIGITAL FILTER CHARACTERISTICS 10 GUARANTEED LOGIC LEVELS 11 RECOMMENDED OPERATING CONDITIONS. 12 ABSOLUTE MAXIMUM RATINGS. 12 OVERVIEW 13 THEORY OF OPERATION 13 Converter Operation 14 Power Consumption 15 Clock 16 Voltage Reference 16 Analog Input 17 Output Coding Format 17 Typical Connection Diagrams 18 AIN & VREF Sampling Structures 20 Converter Performance 20 Digital Filter Characteristics 23 Serial Port 24 SSC Mode 24 SEC Mode 24 Power Supplies & Grounding 25 Using the CS5566 in Multiplexing Applications 25 Synchronizing Multiple Converters 25 PIN DESCRIPTIONS PACKAGE DIMENSIONS 29 ORDERING INFORMATION 30 ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION 30 DS806PP1 3/25/08 CS5566 LIST OF FIGURES Figure Converter Status 6 Figure SSC Mode - Read Timing, CS remaining low 7 Figure SSC Mode - Read Timing, CS falling after RDY falls 8 Figure SEC Mode - Continuous SCLK Read Timing 9 Figure SEC Mode - Discontinuous SCLK Read Timing 10 Figure Power Consumption vs. Conversion Rate 15 Figure Voltage Reference Circuit 16 Figure CS5566 Configured Using ±2.5V Analog Supplies 18 Figure CS5566 Configured Using a Single 5V Analog Supply 19 Figure CS5566 DNL Plot. 20 Figure Spectral Performance, 0 dB. 21 Figure Spectral Performance, -6 dB 21 Figure Spectral Performance, -12 dB 21 Figure Spectral Performance, -20 dB 21 Figure Spectral Performance, -80 dB 21 Figure Spectral Performance, -120 dB 21 Figure Spectral Performance, -130 dB 22 Figure Noise Histogram 4096 Samples 22 Figure Spectral Plot of Noise with Shorted Input 22 Figure Digital Filter Response DC to kHz 23 LIST OF TABLES Table Output Coding, Two’s Complement 17 Table Output Coding, Offset Binary 17 DS806PP1 3/25/08 CS5566 CHARACTERISTICS AND SPECIFICATIONS • Min / Max characteristics and specifications are guaranteed over the specified operating conditions. • Typical characteristics and specifications are measured at nominal supply voltages and TA = 25°C. • VLR = 0 V. All voltages with respect to 0 V. ANALOG CHARACTERISTICS TA = -40 to +85 °C V1+ = V2+ = V, ±5% V1- = V2- = V, ±5% VL -VLR = V, ±5% VREF = VREF+ - VREF- = 4.096V MCLK = 8 MHz SMODE = VL. BUFEN = V1+ unless otherwise stated. Connected per Figure Bipolar mode unless otherwise stated. Parameter Min Typ Max Accuracy Linearity Error Differential Linearity Error Note 1 - Positive Full-scale Error Negative Full-scale Error Full-scale Drift Note 2 - Bipolar Offset Note 2 - ±500 Bipolar Offset Drift Note 2 - Noise Dynamic Performance Peak Harmonic or Spurious Noise 200 Hz, dB Input - -115 Total Harmonic Distortion 200 Hz, dB Input - -110 -100 Signal-to-Noise 108 110 ORDERING INFORMATION Model CS5566-ISZ Linearity Temperature -40 to +85 °C Conversion Time Throughput 200 µs 5 kSps Package 24-pin SSOP ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION Model Number CS5566-ISZ Peak Reflow Temp 260 °C MSL Rating* 3 Max Floor Life 7 Days * MSL Moisture Sensitivity Level as specified by IPC/JEDEC J-STD-020. Date MAR 2008 Preliminary release. Changes Contacting Cirrus Logic Support For all product questions and inquiries contact a Cirrus Logic Sales Representative. To find the one nearest to you go to IMPORTANT NOTICE "Preliminary" product information describes products that are in production, but for which full characterization data is not yet available. Cirrus Logic, Inc. and its subsidiaries "Cirrus" believe that the information contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided "AS IS" without warranty of any kind express or implied . Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus for the use of this information, including use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third parties. This document is the property of Cirrus and by furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights, copyrights, trademarks, trade secrets or other intellectual property rights. Cirrus owns the copyrights associated with the information contained herein and gives consent for copies to be made of the information only for use within your organization with respect to Cirrus integrated circuits or other products of Cirrus. This consent does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE "CRITICAL APPLICATIONS" . CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED FOR USE IN PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY DEVICES, LIFE SUPPORT PRODUCTS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK AND CIRRUS DISCLAIMS AND MAKES NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT IS USED IN SUCH A MANNER. IF THE CUSTOMER OR CUSTOMER'S CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL APPLICATIONS, CUSTOMER AGREES, BY SUCH USE, TO FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS, EMPLOYEES, DISTRIBUTORS AND OTHER AGENTS FROM ANY AND ALL LIABILITY, INCLUDING ATTORNEYS' FEES AND COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION WITH THESE USES. Cirrus Logic, Cirrus, and the Cirrus Logic logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks or service marks of their respective owners. DS806PP1

PDF Datasheet Preview

3/25/08

CS5566

V / 5 V, 5 kSps, 24-bit ADC

Features & Description

Differential Analog Input On-chip Buffers for High Input Impedance Conversion Time = 200 µS Settles in One Conversion Linearity Error = Signal-to-Noise = 110 dB 24 Bits, No Missing Codes Simple three/four-wire serial interface Power Supply Configurations:
- Analog +5V/GND IO +1.8V to +3.3V - Analog ±2.5V IO +1.8V to +3.3V

Power Consumption 20 mW 5 kSps

The CS5566 is a single-channel, 24-bit analog-to-digital converter capable of 5 kSps conversion rate. The input accepts a fully differential analog input signal. On-chip buffers provide high input impedance for both the AIN inputs and the VREF+ input. This significantly reduces the drive requirements of signal sources and reduces errors due to source impedances. The CS5566 is a delta-sigma converter capable of switching multiple input channels at a high rate with no loss in throughput. The ADC uses a low-latency digital filter architecture. The filter is designed for fast settling and settles to full accuracy in one conversion. The converter's 24-bit data output is in serial form, with the serial port acting as either a master or a slave. The converter is designed to support bipolar, ground-referenced signals when operated from ±2.5V analog supplies.

The converter can operate from an analog supply of 0-5V or from ±2.5V. The digital interface supports standard logic operating from or V.
ORDERING INFORMATION See Ordering Information on page

VREF+ VREF-

AIN+ AIN-

CS5566

DIGITAL FILTER LOGIC

SERIAL INTERFACE

SMODE CS SCLK

SDO RDY

BUFEN

OSC/CLOCK GENERATOR

DIGITAL CONTROL

SLEEP RST CONV BP/UP

MCLK

VLR2

Preliminary Product Information

This document contains information for a new product. Cirrus Logic reserves the right to modify this product without notice.

Copyright Cirrus Logic, Inc. 2008 All Rights Reserved

MAR ‘08 DS806PP1
3/25/08

CS5566

TABLE OF CONTENTS

CHARACTERISTICS AND SPECIFICATIONS 4 ANALOG CHARACTERISTICS 4 SWITCHING CHARACTERISTICS 6 DIGITAL CHARACTERISTICS 10

DIGITAL FILTER CHARACTERISTICS 10 GUARANTEED LOGIC LEVELS 11 RECOMMENDED OPERATING CONDITIONS. 12 ABSOLUTE MAXIMUM RATINGS. 12 OVERVIEW 13 THEORY OF OPERATION 13 Converter Operation 14 Power Consumption 15 Clock 16 Voltage Reference 16

Analog Input 17

Output Coding Format 17

Typical Connection Diagrams 18

AIN & VREF Sampling Structures 20

Converter Performance 20

Digital Filter Characteristics 23

Serial Port 24

SSC Mode 24

SEC Mode 24

Power Supplies & Grounding 25

Using the CS5566 in Multiplexing Applications 25

Synchronizing Multiple Converters 25

PIN DESCRIPTIONS

PACKAGE DIMENSIONS 29
ORDERING INFORMATION 30

ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION 30

DS806PP1
3/25/08

CS5566

LIST OF FIGURES

Figure Converter Status 6 Figure SSC Mode - Read Timing, CS remaining low 7 Figure SSC Mode - Read Timing, CS falling after RDY falls 8 Figure SEC Mode - Continuous SCLK Read Timing 9 Figure SEC Mode - Discontinuous SCLK Read Timing 10 Figure Power Consumption vs. Conversion Rate 15 Figure Voltage Reference Circuit 16 Figure CS5566 Configured Using ±2.5V Analog Supplies 18 Figure CS5566 Configured Using a Single 5V Analog Supply 19 Figure CS5566 DNL Plot. 20 Figure Spectral Performance, 0 dB. 21 Figure Spectral Performance, -6 dB 21 Figure Spectral Performance, -12 dB 21 Figure Spectral Performance, -20 dB 21 Figure Spectral Performance, -80 dB 21 Figure Spectral Performance, -120 dB 21 Figure Spectral Performance, -130 dB 22 Figure Noise Histogram 4096 Samples 22 Figure Spectral Plot of Noise with Shorted Input 22 Figure Digital Filter Response DC to kHz 23

LIST OF TABLES

Table Output Coding, Two’s Complement 17 Table Output Coding, Offset Binary 17

DS806PP1
3/25/08

CS5566

CHARACTERISTICS AND SPECIFICATIONS
• Min / Max characteristics and specifications are guaranteed over the specified operating conditions.
• Typical characteristics and specifications are measured at nominal supply voltages and TA = 25°C.
• VLR = 0 V. All voltages with respect to 0 V.

ANALOG CHARACTERISTICS TA = -40 to +85 °C V1+ = V2+ = V, ±5% V1- = V2- = V,
±5% VL -VLR = V, ±5% VREF = VREF+ - VREF- = 4.096V MCLK = 8 MHz SMODE = VL. BUFEN = V1+ unless otherwise stated. Connected per Figure Bipolar mode unless otherwise stated.

Parameter

Min Typ Max

Accuracy

Linearity Error

Differential Linearity Error

Note 1 -

Positive Full-scale Error

Negative Full-scale Error

Full-scale Drift

Note 2 -

Bipolar Offset

Note 2 -
±500

Bipolar Offset Drift

Note 2 -

Noise

Dynamic Performance

Peak Harmonic or Spurious Noise
200 Hz, dB Input -
-115

Total Harmonic Distortion
200 Hz, dB Input -
-110 -100

Signal-to-Noise
108 110
ORDERING INFORMATION

Model

CS5566-ISZ

Linearity

Temperature
-40 to +85 °C

Conversion Time Throughput
200 µs
5 kSps

Package
24-pin SSOP

ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION

Model Number

CS5566-ISZ

Peak Reflow Temp 260 °C

MSL Rating* 3

Max Floor Life 7 Days
* MSL Moisture Sensitivity Level as specified by IPC/JEDEC J-STD-020.

Date MAR 2008

Preliminary release.

Changes

Contacting Cirrus Logic Support

For all product questions and inquiries contact a Cirrus Logic Sales Representative.

To find the one nearest to you go to

IMPORTANT NOTICE
"Preliminary" product information describes products that are in production, but for which full characterization data is not yet available.

Cirrus Logic, Inc. and its subsidiaries "Cirrus" believe that the information contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided "AS IS" without warranty of any kind express or implied . Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus for the use of this information, including use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third parties. This document is the property of Cirrus and by furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights, copyrights, trademarks, trade secrets or other intellectual property rights. Cirrus owns the copyrights associated with the information contained herein and gives consent for copies to be made of the information only for use within your organization with respect to Cirrus integrated circuits or other products of Cirrus. This consent does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale.

CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE "CRITICAL APPLICATIONS" . CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED FOR USE IN PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY DEVICES, LIFE SUPPORT PRODUCTS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK AND CIRRUS DISCLAIMS AND MAKES NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT IS USED IN SUCH A MANNER. IF THE CUSTOMER OR CUSTOMER'S CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL APPLICATIONS, CUSTOMER AGREES, BY SUCH USE, TO FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS, EMPLOYEES, DISTRIBUTORS AND OTHER AGENTS FROM ANY AND ALL LIABILITY, INCLUDING ATTORNEYS' FEES AND COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION WITH THESE USES.

Cirrus Logic, Cirrus, and the Cirrus Logic logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks or service marks of their respective owners.

DS806PP1

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived CS5566-ISZ Datasheet file may be downloaded here without warranties.

Datasheet ID: CS5566-ISZ 523201