CS5550-ISZ Cirrus Logic Inc, CS5550-ISZ Datasheet - Page 6

• Manufacturer Part Number: CS5550-ISZ
• Description: IC ADC 2CH LOW-COST 24SSOP
• Manufacturer: Cirrus Logic Inc

Specifications of CS5550-ISZ

• Number Of Converters: 2
• Package / Case: 24-SSOP
• Number Of Bits: 2
• Sampling Rate (per Second): 4k
• Data Interface: Serial
• Power Dissipation (max): 30mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Number Of Adc Inputs: 2
• Architecture: Delta-Sigma
• Conversion Rate: 4 KSPs
• Resolution: 24 bit
• Input Type: Voltage
• Interface Type: Serial (3-Wire)
• Voltage Reference: 2.5 V
• Supply Voltage (max): 5 V
• Supply Voltage (min): 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Input Voltage: 3.3 V to 5 V
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 598-1119-5

ANALOG CHARACTERISTICS
Notes: 3. The minimum FSCR is limited by the maximum allowed gain register value.
VOLTAGE REFERENCE
Notes: 6. The voltage at VREFOUT is measured across the temperature range. From these measurements the
6
Dynamic Characteristics
High Rate Filter Output Word Rate
Input Sampling Rate
Full Scale Calibration Range
High Pass Filter Pole Frequency
Power Supplies
Power Supply Currents (Active State)
Power Consumption
(Note 4)
Power Supply Rejection Ratio (AIN1
(50, 60 Hz)(Note 5)
Power Supply Rejection Ratio (AIN2
(50, 60 Hz)(Note 5)
Reference Output
Output Voltage
Temperature Coefficient
Load Regulation
Reference Input
Input Voltage Range
Input Capacitance
Input CVF Current
4. All outputs unloaded. All inputs CMOS level.
5.
voltage at VA+ and VD+ pins. The “+” and “-” input pins of both input channels are shorted to AGND. Then the CS5550 is commanded to continuous
conversion acquisition mode, and digital output data is collected for the channel under test. The (zero-to-peak) value of the digital sinusoidal output
signal is determined, and this value is converted into the (zero-to-peak) value of the sinusoidal voltage (measured in mV) that would need to be
applied at the channel’s inputs, in order to cause the same digital sinusoidal output. This voltage is then defined as V
following formula is used to calculate the VREFOUT Temperature Coefficient:.
Definition for PSRR: VREFIN tied to VREFOUT, VA+ = VD+ = 5 V, a 150 mV (zero-to-peak) (60 Hz) sinewave is imposed onto the +5 V DC supply
TC
VREF
Parameter
(Output Current 1 µA Source or Sink)
=
Parameter
(
(VREFOUT
Active State (VD+ = 3.3 V)
Active State (VD+ = 5 V)
±)
±)
VREFOUT
MAX
I
DCLK = MCLK/K
D+
I
D+
Stand-by State
- VREFOUT
(VD+ = 3.3 V)
(VD+ = 5 V)
(Continued)
Sleep State
(Gain = 10)
(Gain = 50)
(Gain = 50)
PSRR
AVG
(Note 3)
-3 dB
(Note 6)
=
I
A+
20
MIN
⋅
log
)
Symbol
(
PSRR
PSRR
PSRR
FSCR
PSCA
PSCD
PSCD
OWR
⎧
⎨
⎩
(
PC
REFOUT
150
-------- -
V
Symbol
VREFIN
T
eq
∆V
A MAX
TC
⎫
⎬
⎭
1
1
2
R
1
- T
A MIN
Min
25
56
70
-
-
-
-
-
-
-
-
-
-
-
Min
2.4
2.4
(
-
-
-
-
(
DCLK/1024
1.0 x 10
DCLK/8
11.6
6.75
Typ
0.5
1.3
2.9
1.7
21
10
55
-
-
-
Typ
2.5
25
25
6
4
-
6
(
eq
. PSRR is then (in dB):
Max
Max
100
2.6
2.6
60
10
30
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CS5550
DS630F1
ppm/°C
%F.S.
Unit
mW
mW
mW
Unit
mA
mA
mA
µW
mV
Hz
Hz
Hz
dB
dB
dB
pF
nA
V
V