Build with CS5530 — Datasheet Specs & AI Design Help

00 — Overview

What the CS5530 does

The CS5530 is a 24-bit analog-to-digital converter featuring an ultra-low-noise instrumentation amplifier with 64X gain. This device spans the CS5530-IS and CS5530-ISZ variants, supporting single supplies of 3 to 5 volts or dual supplies of 2.5 to 3 volts. It delivers 12 nV/√Hz noise density, 0.0015% full-scale linearity error, and up to 19 bits of noise-free resolution. The converter includes onboard offset and gain calibration registers to facilitate precise measurements. Typically used in weigh scales, process control, scientific instruments, and medical applications, it offers selectable output rates from 6.25 to 3840 samples per second via a simple three-wire serial interface compatible with SPI and Microwire protocols.

Next step

Start building with CS5530 → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.

01 — Key specifications

Datasheet parameters

Datasheet parameters for CS5530
Parameter	Min	Typ	Max	Conditions	Source
quiescent current	—	6 mA	8 mA	IA+, IA-ID+; (normal mode)	Cirrus Logic datasheet, p. 6 — ANALOG CHARACTERISTICS (Continued)
output current (abs max)	—	—	25 mA	ABSOLUTE MAXIMUM RATINGS	Cirrus Logic datasheet, p. 8 — ABSOLUTE MAXIMUM RATINGS
supply voltage range	2.5 V	—	5 V		Cirrus Logic datasheet, p. 1
cmrr	—	130 dB	—	DC; common; Analog Input	Cirrus Logic datasheet, p. 5 — ANALOG CHARACTERISTICS (Continued)
operating temperature	-40 °C	—	85 °C		Cirrus Logic datasheet, p. 35 — 6. ORDERING INFORMATION
clock frequency	1 MHz	4.92 MHz	5 MHz	(note 21); SWITCHING CHARACTERISTICS	Cirrus Logic datasheet, p. 9 — SWITCHING CHARACTERISTICS
power dissipation (abs max)	—	—	500 mW	(Note 20); ABSOLUTE MAXIMUM RATINGS	Cirrus Logic datasheet, p. 8 — ABSOLUTE MAXIMUM RATINGS
input capacitance	—	10 pF	—	Analog Input	Cirrus Logic datasheet, p. 5 — ANALOG CHARACTERISTICS (Continued)
psrr	—	115 dB	—	DC Positive SuppliesDC Negative Supply	Cirrus Logic datasheet, p. 6 — ANALOG CHARACTERISTICS (Continued)
adc resolution	—	24 bit	—		Cirrus Logic datasheet, p. 35 — 6. ORDERING INFORMATION
sample rate	—	3.84 kHz	—		Cirrus Logic datasheet, p. 11

02 — Alternatives

Closest matches to CS5530

ADS1246 1.9× lower sample rate, 1.9× higher operating temperature, 1.8× lower clock frequency

MCP3421 16.0× lower sample rate, 5.0× higher input offset voltage drift, 3.4× lower fall time

ADS131M02 8.4× higher sample rate, 3.3× lower quiescent current, 1.9× higher operating temperature

ADS131M02IPWR 8.4× higher sample rate, 3.3× lower quiescent current, 1.9× higher operating temperature

ADS1220 1.9× lower sample rate, 1.9× higher operating temperature, 1.2× lower cmrr

ADS1255 13.2× lower power dissipation, 10.0× higher input offset voltage drift, 7.8× higher sample rate

HX711 4.3× lower quiescent current, 2.2× higher clock frequency, 1.3× lower cmrr

LTC2400 1.6× higher operating temperature, 1.2× lower psrr, 1.1× higher supply voltage range

03 — FAQ

Frequently asked questions

What is the ADC resolution of the CS5530-IS?

The ADC resolution is 24 bit.

What is the clock frequency under note 21 in the switching characteristics?

The clock frequency is 4.92 MHz.

What is the CMRR for the CS5530-IS at DC with a common Analog Input?

The CMRR is 130 dB.

What is the input capacitance of the CS5530-IS at the Analog Input?

The input capacitance is 10 pF at the Analog Input.

What is the maximum operating temperature for the CS5530-IS?

The operating temperature is 85 °C.

What is the absolute maximum output current for the CS5530-IS?

The absolute maximum output current is 25 mA.

What is the power dissipation under ABSOLUTE MAXIMUM RATINGS (Note 20)?

The power dissipation is 500 mW.

What is the PSRR for the CS5530-IS under DC Positive Supplies and DC Negative Supply conditions?

The PSRR is 115 dB.

What is the quiescent current for the CS5530-IS in normal mode with IA+, IA-ID+?

The quiescent current is 6 mA.

What is the sample rate of the CS5530-IS?

The sample rate is 3.84 kHz.

What is the supply voltage range for the CS5530-IS?

The supply voltage range is 5 V.