CS5531-ASZ Cirrus Logic Inc, CS5531-ASZ Datasheet - Page 44

• Manufacturer Part Number: CS5531-ASZ
• Description: IC ADC 16BIT 2CH W/LNA 20SSOP
• Manufacturer: Cirrus Logic Inc

Specifications of CS5531-ASZ

• Number Of Converters: 1
• Package / Case: 20-SSOP
• Number Of Bits: 16
• Sampling Rate (per Second): 3.84k
• Data Interface: Serial
• Power Dissipation (max): 45mW
• Voltage Supply Source: Analog and Digital, Dual ±
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Number Of Adc Inputs: 4
• Architecture: Delta-Sigma
• Conversion Rate: 6.25 SPs to 3840 SPs
• Resolution: 16 bit
• Input Type: Voltage
• Interface Type: Serial (3-Wire)
• Voltage Reference: 2.5 V
• Maximum Power Dissipation: 500 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 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: 598-1111-5

3. PIN DESCRIPTIONS
Clock Generator
OSC1; OSC2 - Master Clock.
Control Pins and Serial Data I/O
CS - Chip Select.
44
AMPLIFIER CAPACITOR CONNECT
AMPLIFIER CAPACITOR CONNECT
LOGIC OUTPUT (ANALOG)/GUARD
AMPLIFIER CAPACITOR CONNECT
AMPLIFIER CAPACITOR CONNECT
LOGIC OUTPUT (ANALOG)/GUARD
An inverting amplifier inside the chip is connected between these pins and can be used with a
crystal to provide the master clock for the device. Alternatively, an external (CMOS compatible)
clock (powered relative to VD+) can be supplied into the OSC2 pin to provide the master clock
for the device.
When active low, the port will recognize SCLK. When high the SDO pin will output a high
impedance state. CS should be changed when SCLK = 0.
DIFFERENTIAL ANALOG INPUT
DIFFERENTIAL ANALOG INPUT
DIFFERENTIAL ANALOG INPUT
DIFFERENTIAL ANALOG INPUT
DIFFERENTIAL ANALOG INPUT
DIFFERENTIAL ANALOG INPUT
NEGATIVE ANALOG POWER
NEGATIVE ANALOG POWER
POSITIVE ANALOG POWER
POSITIVE ANALOG POWER
LOGIC OUTPUT (ANALOG)
LOGIC OUTPUT (ANALOG)
MASTER CLOCK
MASTER CLOCK
MASTER CLOCK
MASTER CLOCK
AIN1+
AIN4+
AIN1-
AIN4-
OSC2
OSC1
AIN1+
OSC2
OSC1
AIN1-
VA+
VA-
VA+
VA-
C1
C2
A0
A1
C1
C2
A0
A1
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
CS5533/4
CS5531/2
24
23
22
21
20
19
18
17
16
15
14
13
20
19
18
17
16
15
14
13
12
11
AIN2+
AIN2-
VREF+
VREF-
DGND
VD+
CS
SDI
SDO
SCLK
AIN2+
AIN2-
AIN3+
AIN3-
VREF+
VREF-
DGND
VD+
CS
SDI
SDO
SCLK
DIFFERENTIAL ANALOG INPUT
DIFFERENTIAL ANALOG INPUT
DIFFERENTIAL ANALOG INPUT
DIFFERENTIAL ANALOG INPUT
VOLTAGE REFERENCE INPUT
VOLTAGE REFERENCE INPUT
DIGITAL GROUND
POSITIVE DIGITAL POWER
CHIP SELECT
SERIAL DATA INPUT
SERIAL DATA OUT
SERIAL CLOCK INPUT
DIFFERENTIAL ANALOG INPUT
DIFFERENTIAL ANALOG INPUT
VOLTAGE REFERENCE INPUT
VOLTAGE REFERENCE INPUT
DIGITAL GROUND
POSITIVE DIGITAL POWER
CHIP SELECT
SERIAL DATA INPUT
SERIAL DATA OUT
SERIAL CLOCK INPUT
CS5531/32/33/34-AS
DS289F5