参照 ADS1146 - ADS1146 は 1 チャネルのみで、ADS1147 とは異なり、内部電圧リファレンス(Vref)やデュアル電流ソースを搭載していません。ADS1247 - ADS1247 は、16 ビット ADS1147 の 24 ビット・アップグレード品です。ADS1148 - ADS1148 は、4x 差動入力/7x シングルエンド入力で、内部電圧リファレンス(Vref)とデュアル電流ソースを搭載
データシート
ADS1146 ADS1147 ADS1148 ADS1246 ADS1247 ADS1248 Resolution(Bits) 16 16 16 24 24 24 Sample Rate (max) 2kSPS 2kSPS 2kSPS 2KSPS 2KSPS 2KSPS # Input Channels 1 3 7 1 3 7 Architecture Delta-Sigma Delta-Sigma Delta-Sigma Delta-Sigma Delta-Sigma Delta-Sigma Input Configuration Range +/- Vref / PGA +/- Vref / PGA +/- Vref / PGA +/- Vref / PGA +/- Vref / PGA +/- Vref / PGA Interface Serial SPI Interface Serial SPI Interface Serial SPI Interface Serial SPI Interface Serial SPI Interface Serial SPI Interface INL (+/-)(Max)(%) 1.5E-5 1.5E-5 1.5E-5 1.5E-5 1.5E-5 1.5E-5 INL(Max)(+/-LSB) 0.0015% 0.0015% 0.0015% 0.0015% 0.0015% 0.0015% DNL(Max)(+/-LSB) 1 1 1 1 1 1 Power Consumption(Typ)(mW) 2.3 2.3 2.3 2.3 2.3 2.3 Reference Mode Ext Int and Ext Int and Ext Ext Int and Ext Int and Ext Analog Voltage AV/DD(Min)(V) 2.7 2.7 2.7 2.7 2.7 2.7 Analog Voltage AV/DD(Max)(V) 5.25 5.25 5.25 5.25 5.25 5.25 Digital Supply(Min)(V) 2.7 2.7 2.7 2.7 2.7 2.7 Digital Supply(Max)(V) 5.25 5.25 5.25 5.25 5.25 5.25 Pin/Package 16TSSOP 20TSSOP 28TSSOP 16TSSOP 20TSSOP 28TSSOP Operating Temperature Range(°C) -40 to 105 -40 to 105 -40 to 105 -40 to 105 -40 to 105 -40 to 105 Rating Catalog Catalog Catalog Catalog Catalog Catalog Approx. Price (US$) 2.70 | 1,000 個単位 3.45 | 1,000 個単位 3.95 | 1,000 個単位 3.45 | 1,000 個単位 4.45 | 1,000 個単位 4.95 | 1,000 個単位 サンプル サンプル サンプル サンプル サンプル サンプル 在庫 在庫 在庫 在庫 在庫 在庫
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製品情報
特長
16 Bits, No Missing Codes Data Output Rates Up to 2kSPS Single-Cycle Settling for All Data Rates Simultaneous 50/60Hz Rejection at 20SPS 4 Differential/7 Single-Ended Inputs (ADS1148) 2 Differential/3 Single-Ended Inputs (ADS1147) Matched Current Source DACs Internal Voltage Reference Sensor Burnout Detection 4/8 General-Purpose I/Os (ADS1147/8) Internal Temperature Sensor Power Supply and VREF Monitoring (ADS1147/8) Self and System Calibration SPI™-Compatible Serial Interface Analog Supply Operation: +2.7V to +5.25V Unipolar, ±2.5V Bipolar Digital Supply: +2.7V to +5.25V Operating Temperature –40°C to +125°C APPLICATIONS Temperature Measurement RTDs, Thermocouples, and Thermistors データシートを開いて、すべての特長を表示
概要
The ADS1146, ADS1147, and ADS1148 are highly-integrated, precision, 16-bit analog-to-digital converters (ADCs). The ADS1146/7/8 feature an onboard, low-noise, programmable gain amplifier (PGA), a precision delta-sigma ADC with a single-cycle settling digital filter, and an internal oscillator. The ADS1147 and ADS1148 also provide a built-in voltage reference with 10mA output capacity, and two matched programmable current digital-to-analog converters (DACs). The ADS1146/7/8 provide a complete front-end solution for temperature sensor applications including thermal couples, thermistors, and resistance temperature detectors (RTDs).
An input multiplexer supports four differential inputs for the ADS1148, two for the ADS1147, and one for the ADS1146.
データシートを開いて、すべての概要を表示