- 制造厂商:TI
- 产品类别:数据转换器
- 技术类目:模数转换器 (ADC) - 精密模数转换器 (<=10MSPS)
- 功能描述:具有 PGA、振荡器、电压基准和 I2C 的 16 位 240SPS 4 通道 Δ-Σ ADC
- 点击这里打开及下载ADS1112的技术文档资料
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The ADS1112 is a precision, continuously selfcalibrating Analog-to-Digital (A/D) converter with two differential or three singleended channels and up to 16 bits of resolution in a small MSOP10 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. In single-conversion mode, the ADS1112 automatically powers down after a conversion, greatly reducing current consumption during idle periods.
The ADS1112 is designed for applications requiring high-resolution measurement, where space and power consumption are major considerations. Typical applications include portable instrumentation, industrial process control, and smart transmitters.
- 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
- I2C? 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: 240μA
- APPLICATIONS
- PORTABLE INSTRUMENTATION
- INDUSTRIAL PROCESS CONTROL
- SMART TRANSMITTERS
- CONSUMER GOODS
- FACTORY AUTOMATION
- TEMPERATURE MEASUREMENT
All trademarks are the property of their respective owners.
- Resolution (Bits)
- 16
- Number of input channels
- 3
- Sample rate (Max) (kSPS)
- 0.24
- Interface type
- I2C
- Architecture
- Delta-Sigma
- Input type
- Differential, Single-Ended
- Multi-channel configuration
- Multiplexed
- Rating
- Catalog
- Reference mode
- Int
- Input range (Max) (V)
- 5.5
- Input range (Min) (V)
- 0
- Features
- Oscillator, PGA, Small Size
- Operating temperature range (C)
- -40 to 85
- Power consumption (Typ) (mW)
- 0.675
- Analog voltage AVDD (Min) (V)
- 2.7
- Analog voltage AVDD (Max) (V)
- 5.5
- INL (Max) (+/-LSB)
- 6.5
- Digital supply (Min) (V)
- 2.7
- Digital supply (Max) (V)
- 5.5
ADS1112的完整型号有:ADS1112IDGSR、ADS1112IDGST、ADS1112IDRCR、ADS1112IDRCT,以下是这些产品的关键参数及官网采购报价:
ADS1112IDGSR,工作温度:-40 to 85,封装:VSSOP (DGS)-10,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAUAG,TI官网ADS1112IDGSR的批量USD价格:3.3(1000+)
ADS1112IDGST,工作温度:-40 to 85,封装:VSSOP (DGS)-10,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:Call TI,TI官网ADS1112IDGST的批量USD价格:3.96(1000+)
ADS1112IDRCR,工作温度:-40 to 85,封装:VSON (DRC)-10,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网ADS1112IDRCR的批量USD价格:3.3(1000+)
ADS1112IDRCT,工作温度:-40 to 85,封装:VSON (DRC)-10,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网ADS1112IDRCT的批量USD价格:3.96(1000+)
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