| | 电容数字转换器的IC型号、厂商、供应商、PDF资料： | |
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| IC型号 | 厂商 | PDF资料下载 | 供应商 | 说明 |
| AD7747 | ADI | | 查找供应商 |
- Capacitance-to-digital converter
New standard in single chip solutions
Interfaces to single or differential grounded sensors
Resolution down to 20 aF
(that is, up to 19.5-bit ENOB)
Accuracy: 10 fF
Linearity: 0.01%
Common-mode (not changing) capacitance
up to 17 pF
Full-scale (changing) capacitance range ±8 pF
Update rate: 5 Hz to 45 Hz
Simultaneous 50 Hz and 60 Hz rejection at
8.1 Hz update
Active shield for shielding sensor connection |
- Temperature sensor on-chip
Resolution: 0.1°C, accuracy: ±2°C
- Voltage input channel
- Internal clock oscillator
- 2-wire serial interface (I2C® compatible)
- Power
2.7 V to 5.25 V single-supply operation
0.7 mA current consumption
- Operating temperature: -40°C to +125°C
- 16-lead TSSOP package
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| AD7746 | ADI |  下载 | 查找供应商 |
- Capacitance-to-digital converter
New standard in single chip solutions
Interfaces to single or differential floating sensors
Resolution down to 4 aF (that is, up to 21 ENOB)
Accuracy: 4 fF
Linearity: 0.01%
Common-mode (not changing) capacitance up to 17 pF
Full-scale (changing) capacitance range: ±4 pF
Tolerant of parasitic capacitance to ground up to 60 pF
Update rate: 10 Hz to 90 Hz
Simultaneous 50 Hz and 60 Hz rejection at 16 Hz |
- Temperature sensor on-chip
Resolution: 0.1°C, accuracy: ±2°C
- Voltage input channel
- Internal clock oscillator
- 2-wire serial interface (I2C®-compatible)
- Power
2.7 V to 5.25 V single-supply operation
0.7 mA current consumption
- Operating temperature: –40°C to +125°C
- 16-lead TSSOP package
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| AD7745 | ADI | | 查找供应商 |
- Capacitance-to-digital converter
▪ New standard in single chip solutions
▪ Interfaces to single or differential floating sensors
▪ Resolution down to 4 aF (that is, up to 21 ENOB)
▪ Accuracy: 4 fF
▪ Linearity: 0.01%
▪ Common-mode (not changing) capacitance up to 17 pF
▪ Full-scale (changing) capacitance range: ±4 pF
▪ Tolerant of parasitic capacitance to ground up to 60 pF
▪ Update rate: 10 Hz to 90 Hz
▪ Simultaneous 50 Hz and 60 Hz rejection at 16 Hz > |
- Temperature sensor on-chip
▪ Resolution: 0.1°C, accuracy: ±2°C
- Voltage input channel
- Internal clock oscillator
- 2-wire serial interface (I2C®-compatible)
- Power
▪ 2.7 V to 5.25 V single-supply operation
▪ 0.7 mA current consumption
- Operating temperature: –40°C to +125°C
- 16-lead TSSOP package
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| AD7150 | ADI | | 查找供应商 |
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- Ultra low power
3.3 V, 90 uA
- Response time 10 ms
- Adaptive environmental compensation
- Two independent capacitance input channels
Sensor capacitance (CSENS) 0 up to 14 pF
Sensitivity to 0.8 fF
- EMC tested
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- Two modes of operation:
Standalone with fixed settings
Interfaced to a uC for user-defined settings
- Two proximity detection output flags
- 2-wire serial interface (I2C®-compatible)
- Operating temperature:
-40°C to +125°C
- 10-lead uSOIC package
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| AD7143 | ADI | | 查找供应商 |
- Programmable capacitance-to-digital converter
 25 ms update rate (@ maximum sequence
length)
Better than 1 fF resolution
8 capacitance sensor input channels
No external RC tuning components required
Automatic conversion sequencer
- On-chip automatic calibration logic
Automatic compensation for environmental
changes
Automatic adaptive threshold and sensitivity levels
- On-chip RAM to store calibration data
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- I2C®-compatible serial interface
- Separate VDRIVE level for serial interface
- Interrupt output for host controller
- 16-lead, 4 mm x 4 mm LFCSP-VQ
- 2.6 V to 3.6 V supply voltage
- Low operating current
Full power mode: less than 1 mA
Low power mode: 50 µA | |
| AD7142-1 | ADI | | 查找供应商 |
- Programmable capacitance-to-digital converter
- 36 ms update rate
- (@ maximum sequence length)
- Better than 1 fF resolution
- 14 capacitance sensor input channels
- No external RC tuning components required
- Automatic conversion sequencer
- On-chip automatic calibration logic
- Automatic compensation
- for environmental changes
- Automatic adaptive threshold and
- sensitivity levels
- On-chip RAM to store calibration data
- SPI®-compatible serial interface (AD7142)
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- I2C®-compatible serial interface (AD7142-1)
- Separate VDRIVE level for serial interface
- Interrupt output and GPIO
- 32-lead, 5 mm x 5 mm LFCSP_VQ
- 2.6 V to 3.6 V supply voltage
- Low operating current
- Full power mode: less than 1 mA
- Low power mode: 50 μA
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| AD7142 | ADI | 下载 | 查找供应商 |
- Programmable capacitance-to-digital converter
- 36 ms update rate
- (@ maximum sequence length)
- Better than 1 fF resolution
- 14 capacitance sensor input channels
- No external RC tuning components required
- Automatic conversion sequencer
- On-chip automatic calibration logic
- Automatic compensation
- for environmental changes
- Automatic adaptive threshold and
- sensitivity levels
- On-chip RAM to store calibration data
- SPI®-compatible serial interface (AD7142)
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- I2C®-compatible serial interface (AD7142-1)
- Separate VDRIVE level for serial interface
- Interrupt output and GPIO
- 32-lead, 5 mm x 5 mm LFCSP_VQ
- 2.6 V to 3.6 V supply voltage
- Low operating current
- Full power mode: less than 1 mA
- Low power mode: 50 μA
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