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Cirrus Logic

CS5513 Datasheet Preview

CS5513 Datasheet

Sigma-Delta ADC

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CS5510/11/12/13
16-bit and 20-bit, 8-pin ΔΣ ADCs
Features
Delta-sigma Analog-to-digital Converter
– Linearity Error: 0.0015% FS
– Noise-free Resolution: Up to 17 Bits
Differential Bipolar Analog Inputs
VREF Input Range from 250 mV to 5 V
50/60 Hz Simultaneous Rejection
(CS5510/12)
16 to 326 Sps Output Word Rate
On-chip Oscillator (CS5511/13)
Power Supply Configurations:
– V+ = 5 V, V- = 0 V
– Multiple Dual-supply Arrangements
Low Power Consumption
– Normal Mode, 2.5 mW
– Sleep Mode, 10 μW
Low-cost, Compact, 8-pin Package
Lead-free Device Package Options
General Description
The CS5510/11/12/13 are low-cost, easy-to-use, ΔΣ 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 ΔΣ 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. 2009
(All Rights Reserved)
JUL ‘09
DS337F4




Cirrus Logic

CS5513 Datasheet Preview

CS5513 Datasheet

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
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. PACKAGE DIMENSIONS ....................................................................................................... 24
8. REVISION HISTORY ............................................................................................................. 25
2 DS337F4


Part Number CS5513
Description Sigma-Delta ADC
Maker Cirrus Logic
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CS5513 Datasheet PDF






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