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CS5511 Datasheet Preview

CS5511 Datasheet

8-pin Sigma-Delta ADC

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CS5510/11/12/13
16-bit and 20-bit, 8-pin ∆Σ ADC
Features
z Delta-sigma Analog-to-digital Converter
– Linearity Error: 0.0015% FS
– Noise-free Resolution: Up to 17 Bits
z Differential Bipolar Analog Inputs
www.DataSheezt4UV.cRoEmF Input Range from 250 mV to 5 V
z 50/60 Hz Simultaneous Rejection
(CS5510/12)
z 16 to 326 Sps Output Word Rate
z On-chip Oscillator (CS5511/13)
z Power Supply Configurations:
– V+ = 5 V, V- = 0 V
– Multiple Dual-supply Arrangements
z Low Power Consumption
– Normal Mode, 2.5 mW
– Sleep Mode, 10 µW
z Low-cost, Compact, 8-pin Package
z Lead-free Device Package Options
General Description
The CS5510/11/12/13 are low-cost, easy-to-use, ∆Σ an-
alog-to-digital converters (ADCs) which use charge-
balance techniques to achieve 16-bit (CS5510/11) and
20-bit (CS5512/13) performance. The ADCs are avail-
able in a space-efficient, 8-pin SOIC package and are
optimized for measuring signals in weigh scale, process
control, and other industrial applications.
To accommodate these applications, the ADCs include
a fourth-order ∆Σ modulator and a digital filter. When
configured with an external master clock of 32.768 kHz,
the filter in the CS5510/12 provides better than 80 dB of
simultaneous 50 and 60 Hz line rejection, and outputs
conversion words at 53.5 Sps. The CS5511/13 include
an on-chip oscillator which eliminates the need for an ex-
ternal clock source.
Low-power, flexible supply configurations, compact pi-
nout, and ease of use make these products ideal
solutions for cost-conscience and space-constrained
applications.
ORDERING INFORMATION
See page 23.
AIN+
AIN-
VREF
1X
~0.8X
http://www.cirrus.com
V+
Differential
4th-order
Delta-sigma
Modulator
Digital Filter
Output
Control
Logic
CS
SDO
SCLK
Oscillator
(CS5511/13 only)
Clock
Gen.
(CS5510/12 only)
V-
Copyright © Cirrus Logic, Inc. 2005
(All Rights Reserved)
AUG ‘05
DS337F3




Cirrus Logic

CS5511 Datasheet Preview

CS5511 Datasheet

8-pin Sigma-Delta ADC

No Preview Available !

CS5510/11/12/13
TABLE OF CONTENTS
1. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 4
ANALOG CHARACTERISTICS ................................................................................................ 4
DIGITAL CHARACTERISTICS ................................................................................................. 5
DYNAMIC CHARACTERISTICS .............................................................................................. 6
ABSOLUTE MAXIMUM RATINGS ........................................................................................... 6
SWITCHING CHARACTERISTICS - CS5510/12 ..................................................................... 7
SWITCHING CHARACTERISTICS - CS5511/13 ..................................................................... 8
2. GENERAL DESCRIPTION ..................................................................................................... 10
2.1 Analog Input ..................................................................................................................... 10
2.1.1 Analog Input Model ............................................................................................. 10
www.DataSheet4U.com 2.2 Voltage Reference Input .................................................................................................. 10
2.2.1 Voltage Reference Input Model ........................................................................... 11
2.3 Power Supply Arrangements ........................................................................................... 11
2.3.1 Digital Logic Levels ............................................................................................. 11
2.4 Clock Generator ............................................................................................................... 14
2.4.1 External Clock Source for CS5510/12 ................................................................ 14
2.4.2 Internal Oscillator for CS5511/13 ........................................................................ 14
2.5 Performing Conversions .................................................................................................. 15
2.5.1 Reading Conversions - CS5510/12 ..................................................................... 16
2.5.2 Reading Conversions - CS5511/13 ..................................................................... 16
2.5.3 Output Coding ..................................................................................................... 17
2.5.4 Digital Filter ......................................................................................................... 18
2.5.5 Multiplexed Applications ...................................................................................... 19
2.6 Digital Off-chip System Calibration .................................................................................. 20
2.7 Power Consumption, Sleep and Reset ............................................................................ 20
2.8 PCB Layout ...................................................................................................................... 20
3. PIN DESCRIPTIONS .............................................................................................................. 21
4. SPECIFICATION DEFINITIONS ............................................................................................. 22
5. ORDERING INFORMATION ................................................................................................... 23
6. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION ............................ 23
7. REVISION HISTORY ............................................................................................................. 23
8. PACKAGE DIMENSIONS ....................................................................................................... 24
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 www.cirrus.com
IMPORTANT NOTICE
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 con-
sent 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 PROP-
ERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED FOR USE
IN AIRCRAFT SYSTEMS, MILITARY APPLICATIONS, PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY DE-
VICES, 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 APPLICA-
TIONS, 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.
2 DS337F3


Part Number CS5511
Description 8-pin Sigma-Delta ADC
Maker Cirrus Logic
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CS5511 Datasheet PDF






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