ADS1112 16 位 240SPS ADC，2 通道采用 MSOP-10 封装的差动/3 单端输入低功耗完整系统

	ADS1100	ADS1110	ADS1112
Resolution(Bits)	16	16	16
Sample Rate (max)	128SPS	128SPS	240SPS
Architecture	Delta-Sigma	Delta-Sigma	Delta-Sigma
Power Consumption(Typ)(mW)	0.27	0.72	0.675
DNL(Max)(+/-LSB)	1	1	1
INL(Max)(+/-LSB)	0.003%	0.004%	0.004%
No Missing Codes(Bits)	16	16	16
ENOB(Bits)	16	16	16
No. of Supplies	1	1	1
Analog Voltage AV/DD(Min)(V)	2.7	2.7	2.7
Analog Voltage AV/DD(Max)(V)	5.5	5.5	5.5
Logic Voltage DV/DD(Min)(V)	2.7	2.7	2.7
Logic Voltage DV/DD(Max)(V)	5.5	5.5	5.5
Input Configuration Range	PGA (1-8), VDD	2.048/PGA (1-8)	2.048/PGA (1-8)
Reference Mode	Ext	Int	Int
Rating	Catalog	Catalog	Catalog
Pin/Package	6SOT-23	6SOT-23	10MSOP, 10SON
# Input Channels	1	1	3
Operating Temp Range(Celsius)	-40 to 85		-40 to 85

The ADS1112 is a precision, continuously self–calibrating Analog-to-Digital (A/D) converter with two differential or three single–ended channels and up to 16 bits of resolution in a small MSOP–10 package and leadless QFN-style (small-outline, no lead) packages. The onboard 2.048V reference provides an input range of ±2.048V differentially. The ADS1112 uses an I2C-compatible serial interface and has two address pins that allow a user to select one of the eight I2C Slave addresses. The ADS1112 operates from a single power supply ranging from 2.7V to 5.5V.

The ADS1112 can perform conversions at rates of 15, 30, 60, or 240 samples per second (SPS). The onboard programmable gain amplifier (PGA), which offers gains of up to eight, allows smaller signals to be measured with high resolution.

ADS1112 特性

COMPLETE DATA ACQUISITION SYSTEM IN A SMALL MSOP–10 PACKAGE AND LEADLESS QFN-STYLE PACKAGES
MEASUREMENTS FROM TWO DIFFERENTIAL CHANNELS OR THREE SINGLE–ENDED CHANNELS
I2CTM INTERFACE—EIGHT ADDRESSES PIN–SELECTABLE
ONBOARD REFERENCE:
Accuracy: 2.048V ±0.05%
Drift: 5ppm/°C
ONBOARD PGA
ONBOARD OSCILLATOR
16-BITS NO MISSING CODES
INL: 0.01% of FSR max
CONTINUOUS SELF-CALIBRATION
SINGLE-CYCLE CONVERSION
PROGRAMMABLE DATA RATE: 15SPS TO 240SPS
POWER SUPPLY: 2.7V to 5.5V
LOW CURRENT CONSUMPTION: 240uA
APPLICATIONS
- PORTABLE INSTRUMENTATION
- INDUSTRIAL PROCESS CONTROL
- SMART TRANSMITTERS
- CONSUMER GOODS
- FACTORY AUTOMATION
- TEMPERATURE MEASUREMENT

ADS1112 芯片订购指南

器件	状态	温度 (oC)	价格（美元）	封装 \| 引脚
ADS1112IDGSR	ACTIVE	-40 to 85	2.65 \| 1ku	MSOP (DGS) \| 10
ADS1112IDGSRG4	ACTIVE	-40 to 85	2.65 \| 1ku	MSOP (DGS) \| 10
ADS1112IDGST	ACTIVE	-40 to 85	2.95 \| 1ku	MSOP (DGS) \| 10
ADS1112IDGSTG4	ACTIVE	-40 to 85	2.95 \| 1ku	MSOP (DGS) \| 10
ADS1112IDRCR	ACTIVE	-40 to 85	2.65 \| 1ku	SON (DRC) \| 10
ADS1112IDRCRG4	ACTIVE	-40 to 85	2.65 \| 1ku	SON (DRC) \| 10
ADS1112IDRCT	ACTIVE	-40 to 85	2.95 \| 1ku	SON (DRC) \| 10
ADS1112IDRCTG4	ACTIVE	-40 to 85	2.95 \| 1ku	SON (DRC) \| 10