CS5516-ASZ Cirrus Logic Inc, CS5516-ASZ Datasheet - Page 26

• Manufacturer Part Number: CS5516-ASZ
• Description: IC ADC 16BIT BRIDGE TRAS 24-SOIC
• Manufacturer: Cirrus Logic Inc

Specifications of CS5516-ASZ

• Number Of Bits: 16
• Sampling Rate (per Second): 60
• Data Interface: Serial
• Number Of Converters: 2
• Power Dissipation (max): 37.5mW
• Voltage Supply Source: Analog and Digital, Dual ±
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (0.300", 7.50mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 598-1101-5

26
The filter will start a new convolution on the
next rising edge of the XIN clock after the 24th
SCLK falls.
Sleep Mode
The CS5516/20 configuration register has an
A/S bit which allows the users to put the device
in a sleep condition to lower quiescent power.
Upon reset the A/S bit device is set to a logic 0
which places the device in the ’awake’ condi-
tion. Writing a 1 to the A/S bit will shutdown
most of the chip, including the oscillator. It is
desirable to use the following sequence when
coming out of sleep. Write a logic 0 to the A/S
bit of the configuration register. In the same
configuration word write a logic 1 to the RF bit
of the configuration register. Then wait until it is
certain that the oscillator has started. After the
oscillator has started or a clock present on the
XIN pin, set the RF bit back to 0. The user
should then wait at least 6 output word update
periods before expecting a valid output data
word.
Noise Performance
Typical noise performance for the converter is
listed in the specification tables for each PGA
gain. Figure 13 illustrates a noise histogram for
1000 output conversions from the CS5520. The
data for the histogram was collected using the
CDB5520 evaluation board; with VREF at 2.5
volts, PGA = 4, bipolar mode. The data shows
the standard deviation of the data set is 3.2
LSBs. One LSB is equivalent to [VREF X 2(bi-
polar)]/ [Inst amp gain X PGA gain X number
of codes] or (2.5 X 2)/ (25 X 4 X 2E20) = 47.7
nV. One standard deviation is equivalent to rms
if the data is Normal or Gaussian. The rms noise
presented by the plot is 153 nV, which is in
good agreement with the typical noise specifica-
tion of 150 nV for a PGA gain of 4.
Applications
See the Application Notes section of the databook.
26
Schematic & Layout Review Service
C a l l : ( 5 1 2 ) 4 4 5 - 7 2 2 2
140
120
100
Confirm Optimum
Confirm Optimum
Schematic & Layout
Schematic & Layout
Before Building Your Board.
Before Building Your Board.
For Our Free Review Service
For Our Free Review Service
Call Applications Engineering.
Call Applications Engineering.
80
60
40
20
0
Figure 13. CS5520 Noise Histogram.
-8
-7
-6
-5
-4
-3
-2
-1
CS5516, CS5520
0 1 2 3 4 5 6 7 8
DS74F2
DS74F1