CS5520-BSZ

CS5520-BSZ Datasheet

CCS5S5515616 CCS5S5525020

Part	Datasheet
CS5520-BSZ	CS5520-BSZ (pdf)

Related Parts	Information
CS5516-ASZ	CS5516-ASZ

PDF Datasheet Preview
CCS5S5515616 CCS5S5525020 l On-chip Instrumentation Amplifier l On-chip Programmable Gain Amplifier l On-Chip 4-Bit D/A For Offset Removal l Dynamic Excitation Options l Linearity Error FS - 20-bit, No Missing Codes l CMRR at 50/60 Hz > 200 dB l System Calibration Capability with calibration read/write option l 3-, 4-, or 5-wire Serial Communications Port l Low Power Consumption 40 mW - 10 µW Standby Mode for Portable applications The CS5516 and CS5520 are complete solutions for digitizing low level signals from strain gauges, load cells, and pressure transducers. Any family of mV output transducers, including those requiring bridge excitation, can be interfaced directly to the CS5516 or CS5520. The devices offer an on-chip software programmable instrumentation amplifier block, choice of DC or AC bridge excitation, and software selectable reference and signal demodulation. The CS5516 uses delta-sigma modulation to achieve 16-bit resolution at output word rates up to 60 Sps. The CS5520 achieves 20-bit resolution at output word rates up to 60 Sps. The CS5516 and CS5520 sample at a rate set by the user in the form of either an external CMOS clock or a crystal. On-chip digital filtering provides rejection of all frequencies above 12 Hz for a MHz clock. The CS5516 and CS5520 include system calibration to null offset and gain errors in the input channel. The digital values associated with the system calibration can be written to, or read from, the calibration RAM locations at any time via the serial communications port. The 4-bit DC offset D/A converter, in conjunction with digital correction, is initially used to zero the input offset value. ORDERING INFORMATION See page DLQ %ORFN &RQYHUWHU %ULGJH &DOLEUDWLRQ ;,1 ;287 '1' 0RGXODWRU ,5 LOWHU 6HULDO ,QWHUIDFH 62' 6,' 602' '5'< &6 567 Cirrus Logic, Inc. 512 445 7222 FAX 512 445 7581 Copyright CCirroupsyLriogghitc , InCci.rr2u0s0L5ogic, Inc. 1997 All Rights Rese rAvelldR ights Reserved MSAERP ‘095 DS74F21 CS5516 ANALOG CHARACTERISTICS TA = TMIN to TMAX VA+, VD+, MDRV+ = 5V VA-, VD- = -5V; VREF= 2.5V external differential voltage across VREF+ and VREF- fCLK = MHz; AC Excitation 300 Hz Gain = 25 Bipolar Mode Rsource = with a 4.7nF to AGND at AIN see Note 1 unless otherwise specified. Parameter* Max Units Specified Temperature Range -40 to +85 Accuracy Linearity Error ±%FS Differential Nonlinearity LSB16 Unipolar Gain Error Note 2 ±31 Bipolar Gain Error Note 2 ±31 Unipolar/Bipolar Gain Drift ppm/°C Unipolar Offset Note 2 LSB16 Bipolar Offset Note 2 ORDERING INFORMATION CDB5516 CDB5520 Evaluation Board Evaluation Board Load Cell Bridge Excitation -5V 0V +5V 0V +5V AIN+ CS5516 CS5520 AINVREF+ SCLK SID SOD VREF- BX1 BX2 Clock RS232 Driver/ Receiver Microcontroller RS232 Connector Cirrus Logic, Inc. 512 445 7222 FAX 512 445 7581 Copyright Inc. 1998 All Rights Rese rAvelldR ights Reserved MSAERP ‘095 DS74DB4# CDB5516/CDB5520 Introduction Evaluation Board Overview The CDB5516/20 evaluation board provides a means of testing the CS5516 and CS5520 bridge transducer A/D converters. The board is designed to be interfaced to a PC-compatible computer via an RS-232 port. Software is supplied with the board which provides control of all registers in the CS5516 or the CS5520. The board is configured to be operated from +5 and -5 volt power supplies. A bridge transducer or a bridge transducer simulator is required if the board is to be evaluated in the ratiometric operating mode. Figure 1 illustrates the schematic of the bridge driver and A/D converter portion of the circuit board. The converter operates from a 4 MHz crystal. This results in the converter outputting conversion words at a 50 Sps rate. The board comes configured to be interfaced to a bridge transducer via the 6-pin transducer terminal block. The sense lines on the transducer terminal block provide the reference voltage for the converter. For absolute measurements, the user can connect either an external reference voltage up to volts to the reference terminal block or connect the on-board volt LT1019 reference as the voltage reference for the converter. EXC GND +5VA EXC U3 MICREL MIC4428 Q1 TP0610 +5VA 0.1µF C7 3 R1 10 1µF 2 2 10k C20 4 0.1µF 10 µF

PDF Datasheet Preview

CCS5S5515616 CCS5S5525020
l On-chip Instrumentation Amplifier l On-chip Programmable Gain Amplifier l On-Chip 4-Bit D/A For Offset Removal l Dynamic Excitation Options l Linearity Error FS
- 20-bit, No Missing Codes
l CMRR at 50/60 Hz > 200 dB l System Calibration Capability with calibration
read/write option l 3-, 4-, or 5-wire Serial Communications Port l Low Power Consumption 40 mW
- 10 µW Standby Mode for Portable applications

The CS5516 and CS5520 are complete solutions for digitizing low level signals from strain gauges, load cells, and pressure transducers. Any family of mV output transducers, including those requiring bridge excitation, can be interfaced directly to the CS5516 or CS5520. The devices offer an on-chip software programmable instrumentation amplifier block, choice of DC or AC bridge excitation, and software selectable reference and signal demodulation.

The CS5516 uses delta-sigma modulation to achieve 16-bit resolution at output word rates up to 60 Sps. The CS5520 achieves 20-bit resolution at output word rates up to 60 Sps.

The CS5516 and CS5520 sample at a rate set by the user in the form of either an external CMOS clock or a crystal. On-chip digital filtering provides rejection of all frequencies above 12 Hz for a MHz clock.

The CS5516 and CS5520 include system calibration to null offset and gain errors in the input channel. The digital values associated with the system calibration can be written to, or read from, the calibration RAM locations at any time via the serial communications port. The 4-bit DC offset D/A converter, in conjunction with digital correction, is initially used to zero the input offset value.
ORDERING INFORMATION See page
*DLQ %ORFN
&RQYHUWHU
%ULGJH
&DOLEUDWLRQ
;,1 ;287
'*1'
0RGXODWRU
,5 LOWHU
6HULDO ,QWHUIDFH
62' 6,'
602' '5'< &6 567

Cirrus Logic, Inc. 512 445 7222 FAX 512 445 7581

Copyright CCirroupsyLriogghitc , InCci.rr2u0s0L5ogic, Inc. 1997 All Rights Rese rAvelldR ights Reserved

MSAERP ‘095 DS74F21

CS5516

ANALOG CHARACTERISTICS TA = TMIN to TMAX VA+, VD+, MDRV+ = 5V VA-, VD- = -5V;

VREF= 2.5V external differential voltage across VREF+ and VREF- fCLK = MHz;

AC Excitation 300 Hz Gain = 25 Bipolar Mode Rsource = with a 4.7nF to AGND at AIN see Note 1 unless otherwise specified.

Parameter*

Max Units

Specified Temperature Range
-40 to +85

Accuracy

Linearity Error
±%FS

Differential Nonlinearity

LSB16

Unipolar Gain Error

Note 2
±31

Bipolar Gain Error

Note 2
±31

Unipolar/Bipolar Gain Drift
ppm/°C

Unipolar Offset

Note 2

LSB16

Bipolar Offset

Note 2
ORDERING INFORMATION CDB5516

CDB5520

Evaluation Board Evaluation Board

Load Cell

Bridge Excitation
-5V 0V +5V
0V +5V

AIN+

CS5516

CS5520

AINVREF+

SCLK

SID SOD

VREF-

BX1 BX2

Clock

RS232 Driver/ Receiver

Microcontroller

RS232 Connector

Cirrus Logic, Inc. 512 445 7222 FAX 512 445 7581

Copyright Inc. 1998 All Rights Rese rAvelldR ights Reserved

MSAERP ‘095 DS74DB4#

CDB5516/CDB5520

Introduction

Evaluation Board Overview

The CDB5516/20 evaluation board provides a means of testing the CS5516 and CS5520 bridge transducer A/D converters. The board is designed to be interfaced to a PC-compatible computer via an RS-232 port. Software is supplied with the board which provides control of all registers in the CS5516 or the CS5520.

The board is configured to be operated from +5 and -5 volt power supplies. A bridge transducer or a bridge transducer simulator is required if the board is to be evaluated in the ratiometric operating mode.

Figure 1 illustrates the schematic of the bridge driver and A/D converter portion of the circuit board. The converter operates from a 4 MHz crystal. This results in the converter outputting conversion words at a 50 Sps rate. The board comes configured to be interfaced to a bridge transducer via the 6-pin transducer terminal block. The sense lines on the transducer terminal block provide the reference voltage for the converter.

For absolute measurements, the user can connect either an external reference voltage up to volts to the reference terminal block or connect the on-board volt LT1019 reference as the voltage reference for the converter.

EXC GND
+5VA

EXC U3

MICREL MIC4428

Q1 TP0610
+5VA
0.1µF C7 3

R1 10
1µF 2
2 10k

C20 4
0.1µF 10 µF

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 CS5520-BSZ Datasheet file may be downloaded here without warranties.

Datasheet ID: CS5520-BSZ 523197