Build with CS1237 — Datasheet Specs & AI Design Help

00 — Overview

What the CS1237 does

This is the User Guide for the Chipsea CS1237, a 24-bit Sigma-Delta ADC featuring an integrated temperature sensor. The document covers the chip's functional specifications, electrical characteristics, and pinout details. It explains the internal architecture including the analog input front-end, low-noise PGA, and clock source. The guide provides comprehensive instructions for SPI communication, data formatting, and configuration registers. It also describes power management modes and the SOP8 package. This manual serves as a reference for engineers designing circuits to measure temperature and precise analog signals using this specific part number.

Next step

Start building with CS1237 → 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 CS1237
Parameter	Min	Typ	Max	Conditions	Source
supply voltage range	3 V	—	5.5 V		Chipsea datasheet, p. 8 — 1.6 CS1237 电气特性
abs max voltage (abs max)	-300 mV	—	6 V		Chipsea datasheet, p. 7 — 表1 CS1237 极限值
abs max current (abs max)	—	—	100 mA		Chipsea datasheet, p. 7 — 表1 CS1237 极限值
operating temperature (abs max)	-40 °C	—	85 °C		Chipsea datasheet, p. 7 — 表1 CS1237 极限值
adc resolution	—	24 bit	—		Chipsea datasheet, p. 8 — 1.6 CS1237 电气特性
sample rate	10 Hz	—	1.28 kHz		Chipsea datasheet, p. 14 — 表7 输出速率设置
settling time	—	300 ms	—	full settling, 10 Hz output rate	Chipsea datasheet, p. 13 — 2.6.1 建立时间
channel count	—	1	—		Chipsea datasheet, p. 5

02 — Alternatives

Closest matches to CS1237

CS1238 2.0× lower settling time, similar adc resolution, similar operating temperature

ADS1114 1.9× higher operating temperature, 1.5× lower adc resolution, 1.3× higher sample rate

HX711 1.3× higher settling time, similar supply voltage range, similar adc resolution

MCP3421 2.7× lower sample rate, 1.3× lower adc resolution, 1.1× lower settling time

ADS1118 1.9× higher operating temperature, 1.5× lower adc resolution, 1.3× higher sample rate

HX712 1.3× higher settling time, similar supply voltage range, similar adc resolution

LTC2400 2.3× lower settling time, 1.6× higher operating temperature, similar supply voltage range

AD7124-8BBCPZ 10.6× lower supply voltage range, 1.9× higher operating temperature, 1.9× higher sample rate

03 — FAQ

Frequently asked questions

What is the absolute maximum current rating for the CS1237?

The absolute maximum current is 100 mA.

What is the absolute maximum voltage rating for the CS1237?

The absolute maximum voltage is 6 V.

What is the ADC resolution of the CS1237?

The ADC resolution is 24 bit.

What is the channel count of the CS1237?

The channel count is 1.

What is the maximum operating temperature for the CS1237?

The maximum operating temperature is 85 °C.

What is the sample rate of the CS1237?

The sample rate is 1.28 kHz.

What is the settling time for the CS1237 under full settling conditions at a 10 Hz output rate?

The settling time is 300 ms.

What is the supply voltage range for the CS1237?

The supply voltage range is 5.5 V.