CS5501-BS Cirrus Logic Inc, CS5501-BS Datasheet - Page 51

• Manufacturer Part Number: CS5501-BS
• Description: A/D Converter (A-D) IC
• Manufacturer: Cirrus Logic Inc

Specifications of CS5501-BS

• Peak Reflow Compatible (260 C): No
• No. Of Bits: 16 Bit
• Leaded Process Compatible: No
• Mounting Type: Surface Mount
• Interface Type: Serial
• Package / Case: 20-SOIC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Analog Input: Overrange Precautions
In normal operation the value of the reference
voltage determines the range of the analog input
signal. Under abnormal conditions the analog sig-
nal can extend to be equal to the VA+ and VA-
supply voltages. In the event the signal exceeds
these supply voltages the input current should be
GND
DS31DB3
+5V
-5V
D1
6.8
D2
6.8
R4
10
TP11
TP13
TP12
R5
10
C17
10 F
C20
10 F
C18
10 F
V+
V-
C10
0.1 F
LT1019-2.5
GND
Figure 6. Voltage Reference / Analog Input
VIN
2
4
U5
VOUT
TRIM
0.0047 F
6
5
1 M
R8
C21
X7R
CW
R9
50 k
AIN
TP14
TP15
limited to
is internally diode clamped to both supplies. Ex-
cess current into the pin can damage the device.
On the evaluation board, resistor R16 (see Figure
6) does provide some current limiting in the event
of an overrange signal which exceeds the supply
voltage.
R16
200
C16
0.1 F
C6
0.1 F
TP16
C19
10 F
C8
0.1 F
10 mA as the analog input of the chip
R6
R7
10
10
C7
0.1 F
R10
2.4
C9
0.1 F
14
15
10
CDB5501/CDB5503
5
8
9
7
6
VA+
VD+
DGND
VREF
AGND
AIN
VA-
VD-
CS5501/
CS5503
U4
51