CS5560-ISZR Cirrus Logic Inc, CS5560-ISZR Datasheet - Page 5

• Manufacturer Part Number: CS5560-ISZR
• Description: IC 50 DSDS 24-bit Mux DS ADC
• Manufacturer: Cirrus Logic Inc

Specifications of CS5560-ISZR

• Number Of Bits: 24
• Data Interface: Serial
• Number Of Converters: 1
• Power Dissipation (max): 85mW
• Voltage Supply Source: Dual ±
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1277 - KIT BOARD FOR CDB5560 ADC598-1273 - DEV BOARD FOR CS5560 W/MUX
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

AN314REV1
of approximately 6 dB in the full-scale signal-to-noise ratio. This is because the full-scale input range of the differ-
ential input devices is twice that of the single ended devices. For example the CS5560/70/80 has a differential input
range of 8.192 volts (±4.096) while the CS5561/71/81 has a full-scale input range of 4.096 volts (±2.048). For an
equivalent internal noise, this means the full-scale input-to-noise ratio improves by 6 dB when using the differential
input devices. Of course, in order to take advantage of the differential device, the signal being converted needs to
be a true differential signal that utilizes the full-scale range. Otherwise, a single-ended-to-differential conversion cir-
cuit would need to be designed using a low-noise op-amp such as illustrated in
If the decision is made to use a differential input ADC then the MUX will need to be a dual-pole device. Otherwise,
for simpler implementations with less stringent noise performance requirements, a single-ended input device can
be used with a single-pole MUX.
±10.107 V
Ended
Single
Input
Figure 5. Single-ended-to-differential Conversion Circuit
88.7k
20k
10k
-
+
-
+
½ CS3004
½ CS3004
20k
20k
Figure
Differential
5.
±4.096 V
Output
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