CS5505/6/7/8
CS5505/6/7/8
Very Low Power, 16-bit &
20-Bit A/D Converters
Very Low Power, 16-Bit and
20-bit A/D Converters
Features
l
Very
Description
The CS5505/6/7/8 are a family of low power CMOS A/D
converters which are ideal for measuring low-frequency
signals representing physical, chemical, and biological
processes.
The CS5507/8 have single-channel differential analog
and reference inputs while the CS5505/6 have four
pseudo-differential analog input channels. The
CS5505/7 have a 16-bit output word. The CS5506/8
have a 20-bit output word.The CS5505/6/7/8 sample
upon command up to 100 Sps.
The on-chip digital filter offers superior line rejection at
50 and 60 Hz when the device is operated from a
32.768 kHz clock (output word rate = 20 Sps).
The CS5505/6/7/8 include on-chip self-calibration cir-
cuitry which can be initiated at any time or temperature
to ensure minimum offset and full-scale errors.
The CS5505/6/7/8 serial port offers two general-purpose
modes for the direct interface to shift registers or syn-
chronous
serial
ports
of
industry-standard
microcontrollers.
Low Power Consumption
-
Single supply +5 V operation: 1.7 mW
-
Dual supply ±5 V operation: 3.2 mW
l
Offers
superior performance to VFCs and
multi-slope integrating ADCs
l
Differential Inputs
-
Single Channel (CS5507/8) and Four-Channel
(CS5505/6) pseudo-differential versions
l
Either
5 V or 3.3 V Digital Interface
l
Linearity Error:
-
±0.0015% FS (16-bit CS5505/7)
-
±0.0007% FS (20-bit CS5506/8)
l
Output
update rates up to 100 Sps
l
Flexible Serial Port
l
Pin-Selectable Unipolar/Bipolar Ranges
I
9$ 9$ 9' '*1'
95()287
95()
95()
$,1
$,1
$,1
$,1
$,1
&DOLEUDWLRQ 65$0
$ $
&DOLEUDWLRQ
µ&
26&
&219 ;,1 ;287
08;
'LIIHUHQWLDO
WK2UGHU
'HOWD6LJPD
0RGXODWRU
'LJLWDO
)LOWHU
9ROWDJH 5HIHUHQFH
6HULDO
,QWHUIDFH
/RJLF
&6
'5'<
6&/.
6'$7$
06/3
&$/
%383
(512) 445 7222 FAX: (512) 445 7581
http://www.crystal.com
Copyright
©
Cirrus
Copyright
Cirrus Logic, Inc. 2009
Logic, Inc. 1997
(All Rights Reserved)
(All Rights Reserved)
MAR
‘09
AUG
‘95
DS59F4
DS59F6
1
CIRRUS [ CIRRUS LOGIC ]
