CS5550-ISZ Cirrus Logic Inc, CS5550-ISZ Datasheet - Page 16

• 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

4.1.4 Power-Up/Halt
If the device is powered-down, this command will power-up the device. When powered-on, no computations will be
running. If the part is already powered-on, all computations will be halted.
4.1.5 Power-Down and Software Reset
The device has two power-down states to conserve power. If the chip is put in stand-by state, all circuitry except the
analog/digital clock generators is turned off. In the sleep state, all circuitry except the digital clock generator and the
instruction decoder is turned off. Waking up the CS5550 out of sleep state requires more time than out of stand-by
state, because of the extra time needed to re-start and re-stabilize the analog clock signal.
4.1.6 Calibration
The device has the capability of performing a system offset calibration and gain calibration. Offset and gain calibra-
tions should NOT be performed at the same time (must do one after the other). Proper inputs must be supplied to
the device before initiating calibration.
16
B7
B7
B7
1
1
1
A2,A1
G
O
S1,S0
B6
B6
B6
0
0
1
B5
B5
B5
1
0
0
00 = Software Reset
01 = Halt and enter stand-by power saving state. This state allows quick power-on time
10 = Halt and enter sleep power saving state. This state requires a slow power-on time
11 = Reserved
00 = Not allowed
11 = Calibrate AIN1 channel and AIN2 channel simultaneously
0 = Normal operation
1 = Perform gain calibration
0 = Normal operation
1 = Perform offset calibration
Power-down state
Designates calibration channel
01 = Calibrate the AIN1 channel
10 = Calibrate the AIN2 channel
Designates gain calibration
Designates offset calibration
B4
B4
B4
S1
A2
0
B3
B3
B3
S0
A1
0
B2
B2
B2
0
0
0
B1
B1
B1
G
0
0
B0
B0
B0
O
0
0
CS5550
DS630F1