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CS5504-BP Datasheet

  • CS5504-BP

  • Cirrus Logic [Low Power, 20-Bit A/D Converter]

  • 361.75KB

  • CIRRUS

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CDB5504
CS5504
CS5504
Evaluation Board
20-Bit A/D Converter
Low-power, for CS5504 A/D Converter
Low Power,
20-bit A/D Converter
Features
Description
The CS5504 is a 2-channel, fully differential 20-bit, seri-
al-output CMOS A/D converter. The CS5504 uses
charge-balanced (delta-sigma) techniques to provide a
low cost, high-resolution measurement at output word
rates up to 200 samples per second.
The on-chip digital filter offers superior line rejection at
50 Hz and 60 Hz when the device is operated from a
32.768 kHz clock (output word rate = 20 Sps).
The CS5504 has on-chip self-calibration circuitry which
can be initiated at any time or temperature to ensure
minimum offset and full-scale errors.
Low power, high-resolution and small package size
make the CS5504 an ideal solution for loop-powered
transmitters, panel meters, weigh scales and battery-
powered instruments.
ORDERING INFORMATION
See
page 23.
CS5504-BS -40掳 to +85掳 C 20-pin SOIC
I
l
Delta-sigma A/D Converter
l
2 Differential Inputs
-
20-bit, No Missing Codes
-
Linearity Error: 卤0.0007%FS
-
Pin-selectable Unipolar/Bipolar Ranges
-
Common Mode Rejection
105 dB @ dc
120 dB @ 50, 60 Hz
l
Either 5V or 3.3V Digital Interface
l
On-chip Self-calibration Circuitry
l
Output Update Rates up to 200/Sps
l
Low Power Consumption: 4.4 mW
VREF+
12
VREF-
13
VA+
14
VA-
15
DGND
16
VD+
17
2
AIN1+
AIN1-
AIN2+
AIN2-
8
10
9
11
MUX
4th-Order
Delta-Sigma
Modulator
Serial
Interface
Logic
18
19
CS
SCLK
SDATA
Digital
Filter
20
DRDY
A0
1
4
Calibration
碌C
Calibration SRAM
3
CONV
OSC
5
XIN
6
XOUT
7
CAL
BP/UP
Cirrus Logic, Inc.
Crystal Semiconductor Products Division
http://www.cirrus.com
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.crystal.com
Copyright
漏
Cirrus
Copyright
漏
Cirrus Logic, Inc. 2005
Logic, Inc. 1997
(All Rights Reserved)
(All Rights Reserved)
AUG 鈥?5
MAR 鈥?5
AUG 鈥?5
DS126F2
DS126F1
1
DS126DB2

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