CS5511-ASZR Cirrus Logic Inc, CS5511-ASZR Datasheet

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CS5511-ASZR

Manufacturer Part Number
CS5511-ASZR
Description
IC 16-Bit 8-Pin Delta Sigma ADC
Manufacturer
Cirrus Logic Inc
Datasheet

Specifications of CS5511-ASZR

Number Of Bits
16
Sampling Rate (per Second)
326
Data Interface
Serial
Number Of Converters
1
Power Dissipation (max)
2mW
Voltage Supply Source
Dual ±
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.200", 5.30mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
http://www.cirrus.com
Delta-sigma Analog-to-digital Converter
– Linearity Error: 0.0015% FS
– Noise-free Resolution: Up to 17 Bits
Differential Bipolar Analog Inputs
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
VREF
AIN+
REF
AIN-
Input Range from 250 mV to 5 V
~0.8X
1X
16-bit and 20-bit, 8-pin
V+
V-
Delta-sigma
Differential
Modulator
4th-order
Copyright  Cirrus Logic, Inc. 2009
(All Rights Reserved)
(CS5511/13 only)
Oscillator
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
Digital Filter
page
ΔΣ
23.
Clock
Gen.
CS5510/11/12/13
ADCs
(CS5510/12 only)
Control
Output
Logic
SDO
SCLK
CS
DS337F4
JUL ‘09

Related parts for CS5511-ASZR

CS5511-ASZR Summary of contents

Page 1

... CS5510/12 provides better than 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- ...

Page 2

... 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 ...

Page 3

... Figure 14. Typical Linearity Error for CS5510............................................................................... 15 Figure 15. Typical Linearity Error for CS5512............................................................................... 15 Figure 16. Data Word Timing for the CS5510............................................................................... 16 Figure 17. Data Word Timing for the CS5511............................................................................... 17 Figure 18. Data Word Timing for the CS5512............................................................................... 17 Figure 19. Data Word Timing for the CS5513............................................................................... 17 Figure 20. Digital Filter Response................................................................................................. 19 LIST OF TABLES Table 1 ...

Page 4

... Wideband noise aliased into the baseband. Referred to the input. Typical values shown for 25° For peak-to-peak noise multiply by 6.6. 6. See the section of the data sheet which discusses Analog Input Models. 7. For CS5511/13, OWR = 107 Sps ± 50%. Specifications are subject to change without notice kHz ± ...

Page 5

... SDO. The voltage specified for SDO is relative to CS Figure 11 for more details. DS337F4 (Continued) (Note 8) 0.250 {(V+) - (V-)} (Note 9) CS5510 CS5511 CS5512 CS5513 CS5510 CS5511 CS5512 CS5513 (Note 10) CS5510 CS5511 CS5512 CS5513 (Note 11) and I may not always be the same value Symbol V CS and SCLK (Note 13 SCLK (Note 14) ...

Page 6

... Total power dissipation, including all input currents and output currents. WARNING: Operation at or beyond these limits may result in permanent damage to the device. Normal operation is not guaranteed at these extremes. 6 Symbol CS5510/ CS5511/ CS5510/12 OWR CS5511/13 OWR t s Symbol (Note 16) Positive V+ Negative V- (Notes 17 and 18 ...

Page 7

SWITCHING CHARACTERISTICS - CS5510/ 25° ±5 Input Levels: Logic Logic Parameter Master Clock Timing Master Clock Frequency (CS5510) Master Clock ...

Page 8

... Rates slower than this can potentially put the ADC into sleep as the sleep mode is entered after SCLK is logic 1 for t 25. On the CS5511/13, the serial clock (SCLK) is used to transfer data from the CS5511/13. If SCLK is held high (logic 1) for t or longer, the CS5511/13 enters sleep mode. To exit from sleep mode, SCLK must ...

Page 9

... t11 Figure 1. SDO Read Timing CS5510/12 (Not to Scale t11 Figure 2. SDO Read Timing CS5511/13 (Not to Scale). DS337F4 CS5510/11/12/ t10 ...

Page 10

... When configured with an external master clock of 32.768 kHz, the filter in the CS5510/12 provides better than simultaneous 50 and 60 Hz line rejection, and outputs conversion words at 53.5 Sps. The CS5511/13 include an on-chip oscil- lator which eliminates the need for an external clock source. The CS5510/11/12/13 ADCs are designed to oper- ...

Page 11

CS5512/13. The CS5510/11 follow the same curve, but are limited to 16 bits of resolution. Note that the reference voltage should not be estab- lished prior to having the supply voltages on the V+ and V- pins. 2.2.1 Voltage Reference ...

Page 12

V Supply Differential Input (± 80% VREF) Common Mode = Figure 6. CS5510/11/12/13 Configured with a +5.0 V Analog Supply. +2.5 V Supply Differential Input (± 80% VREF) Common Mode = -2.5 V ...

Page 13

V/+3.0V Supply Differential Input (± 80% VREF) Common Mode = -1.7 V/-2.0V Supply Figure 8. CS5510/11/12/13 Configured with V+ = +3.3 V and +3.0 V and V- = -2.0 ...

Page 14

... ADCs. The CS5510/12 uses the SCLK input pin as its operating clock. The CS5511/13 has an on-chip oscillator that provides its master clock. The SCLK pin on the CS5511/13 is used only to read data and to put the part into sleep mode ...

Page 15

... VD Ω 32.768 kHz 47 pF Figure 12. External (CMOS Compatible) Clock CS5511/13 and oscillates at 64 kHz ±32 kHz. The output word rate (OWR) for the CS5511/13 is de- rived from the internal oscillator, and is equal to f /612. Due to the part-to-part variances in the osc oscillator frequency, the OWR of the CS5511/13 can vary between 53 Sps and 159 Sps ...

Page 16

... Reading Conversions - CS5511/13 After power-up, the CS5511/13 begins converting and updating the output register. When there is new data in the output register (at the end of a con- version cycle) the SDO line will fall to a logic-low level also at a logic-low state (SDO will al- ways be high-impedance when CS is high) ...

Page 17

... In the CS5510/11, there are four more bits of zero, and the remaining 16 bits are the conversion data, out- put MSB first (Table 2). In the CS5512/13, the final Figure 17. Data Word Timing for the CS5511 Figure 18. Data Word Timing for the CS5512 Figure 19 ...

Page 18

... The filter has a response as shown in Figure 20. Table 4 shows the filter re- sponse for frequencies from Hz. Note that the response of the CS5511/13 will be similar, but the frequencies scale with the on-chip oscilla- tor’s frequency, which can be from 32 kHz to 96 kHz (i.e. conversion rates can vary between 53 Sps to 159 Sps) ...

Page 19

... CS5510/12, switch- ing of a multiplexer should occur 595 SCLK cycles after SDO falls. For maximum throughput with the CS5511/13, switching of a multiplexer should oc- cur on the rising edge of SDO during a conversion in which the data word is not read. The conversion ...

Page 20

... In the 20-bit devices (CS5512 and CS5513), multiple conversions can be averaged to arrive at a more accurate offset val- ue. In the 16-bit devices (CS5510 and CS5511), averaging may not be meaningful, because the noise will be below the size of one LSB when using nominal voltages for VREF (2 ...

Page 21

... Schmitt trigger to allow for slow rise and fall time signals. If held high, the device will enter sleep mode. In the CS5510/12, this input is also used as a master clock source which determines conversion speeds and throughput. In the CS5511/13, SCLK is only used to read the conversion data and put the part in sleep mode. ...

Page 22

SPECIFICATION DEFINITIONS Linearity Error The deviation of a code from a straight line which connects the two end points of the A/D Converter transfer function. One end point is located 1/2 LSB below the first code transition and the ...

Page 23

... CS5510-ASZ External CS5511-ASZ Internal CS5512-BSZ External CS5513-BSZ Internal 6. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION Model Number CS5510-ASZ CS5511-ASZ CS5512-BSZ CS5513-BSZ * MSL (Moisture Sensitivity Level) as specified by IPC/JEDEC J-STD-020. DS337F4 Resolution Linearity Error (Max) Temperature Range ±0.003% 16 Bits ±0.0015% 20 Bits Peak Reflow Temp MSL Rating* 260 ° ...

Page 24

PACKAGE DIMENSIONS 8L SOIC (208 MIL BODY) PACKAGE DRAWING 1 b SEATING PLANE e DIM MIN A 0.076 A1 0.004 b 0.013 C 0.006 D 0.206 E 0.204 e 0.040 H 0.302 L 0.019 ∝ 0° ...

Page 25

REVISION HISTORY Revision Date F2 MAR 2005 Added lead-free (Pb) device ordering information. F3 AUG 2005 Updated lead-free (Pb) device ordering information. Added MSL data. F4 JUL 2009 Removed devices containing lead (Pb) from ordering information. DS337F4 CS5510/11/12/13 Changes ...

Page 26

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 Cirrus Logic, Inc. and its subsidiaries (“Cirrus”) believe that the information contained in ...

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