Siricinco Semiconductor

Product Description

Product Introduction

SK1256 24-bit ADC

High-precision data converter chip with built-in extremely low-noise 24-bit analog-to-digital (A/D) converter is suitable for harsh scenarios such as industrial automation, precision measurement, medical equipment, and energy monitoring.

Product Selection

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Product Characteristics

·Noise-free resolution up to 22 bits ·Maximum ±0.002% non-linearity ·Transfer rates up to 15kSPS ·Standby power consumption 0.45mW ·Compatible with SPI serial interface ·Self-calibration and system calibration of all PGA settings
Encapsulation Type

· SSOP28
Typical Application

·Industrial process control ·Scientific instruments ·Medical equipment ·Test equipment ·Weighing scale

Part No.	VIN	Resolution	ADC	DAC	Sampling Rate (Max)	Input Channels	Temperature Sensor	Communication Interface	Architecture	Input Type	Channel Config	PGA	Operating Temperature	Package
SK1256	DVDD:1.8V~3.6V, AVDD:4.75V~5.25V	24	24-bit	×	15kSPS	8	√	SPI	Delta-Sigma	Differential, Single-Ended	Multiplexing	√	-40°C to +85°C	SSOP28
SK2302	1.8V~5.5V	24	24-bit	12-bit	32.768kSPS	2	√	SPI/I2C	Delta-Sigma	Differential	Multiplexing	√	-40°C to +125°C(Tj)	QFN16

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SK2302 24-bit sensor signal conditioning chip

Product Characteristics

·12-bit DAC ·Support SPI and I2C interfaces ·24-bit ADC for main signal/temperature measurement ·High-precision 1X~ 256X gain variable instrumentation amplifier ·Supports built-in temperature sensors and external temperature sensors
Encapsulation Type

· QFN16
Typical Application

·Pressure sensor ·Magnetic sensors ·Strain gauge

Product Block Diagram

SK1256 Framework Diagram

SK2302 framework diagram

A highly integrated, low-cost, high-precision interface chip specially provided for bridge sensors collects, amplifies and calibrates sensor signals. It integrates a low-noise instrumentation amplifier (PGA), a low-power 24-bit-ΔADC, a HALFBAND filter and a 12-bit DAC.

Product Classification

Security Chip
- SKR077
- SK28E22
- SKS003
Mainstream MCU
- 32-bit Cortex®-M0 MCU
- 32-bit Cortex®-M3 MCU
Specialized MCU
- AC Charger MCU
- Fire Detection MCU
Analog Chip
- 24-bit ADC
- 16-bit ADC