Capacitive to Digital & Touch Screen Controllers
Analog Devices’ portfolio of capacitance-to-digital converters (CDCs) and touch screen controllers provide solutions for your automotive, industrial, medical, and other system needs, with applications including humidity, position, and proximity sensing.
Our CDC products provide a new standard in single-chip solutions, with members of this portfolio providing high resolution, high linearity, and high accuracy, as well as fast response times and high input sensitivity. Our touch screen controllers feature a synchronous serial interface ,low on-resistance switches for driving touch screens, and throughput rates greater than 125 kSPS.
Our CDC products provide a new standard in single-chip solutions, with members of this portfolio providing high resolution, high linearity, and high accuracy, as well as fast response times and high input sensitivity. Our touch screen controllers feature a synchronous serial interface ,low on-resistance switches for driving touch screens, and throughput rates greater than 125 kSPS.
Product Selection Table
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Capacitive to Digital & Touch Screen Controllers
| SortOrder | Part# | Device Primary Function | # of Channels | Resolution (bits) | Sample Rate (max) (SPS) | Data Output Interface | Cin Base Offset Range (typ) (F) | Cin Ranges | Is (typ) (A) | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | AD7889 | Touch Screen Controller | 3 | 12 | 105k | Serial I2C, Serial SPI | - | - | 650µ | - |
| 2 | AD7147A | Capacitance to Digital | 13 | 16 | 111 | Serial I2C, Serial SPI | 20p | ±8 | 0.9m | - |
| 3 | AD7879 | Touch Screen Controller | 2 | 12 | 105k | Serial I2C, Serial SPI | - | - | 650µ | $1.74 (AD7879-1ACPZ-500R7) |
| 4 | AD7156 | Capacitance to Digital | 2 | 12 | 100 | Serial I2C | 10p | 0.5, 1, 2, 4 | 65µ | $1.29 (AD7156BCPZ-REEL) |
| 5 | AD7152 | Capacitance to Digital | 2 | 12 | 200 | Serial I2C | 10p | ±0.25, ±0.5, ±1, ±2, 0.5, 1, 2, 4 | 100µ | - |
| 6 | AD7151 | Capacitance to Digital | 1 | 12 | - | Serial I2C | 10p | 0.5, 1, 2, 4 | 70µ | $1.41 (AD7151BRMZ) |
| 7 | AD7150 | Capacitance to Digital | 2 | 12 | - | Serial I2C | 10p | 0.5, 1, 2, 4 | 100µ | $1.41 (AD7150BRMZ) |
| 8 | AD7147 | Capacitance to Digital | 13 | 16 | - | Serial I2C, Serial SPI | 20p | ±8 | 0.9m | $1.32 (AD7147ACPZ-1500RL7) |
| 9 | AD7747 | Capacitance to Digital | 1 | 24 | - | Serial I2C | 17p | ±8.192 | 0.7m | $4.80 (AD7747ARUZ) |
| 10 | AD7143 | Capacitance to Digital | 8 | 16 | - | Serial I2C | 20p | ±2 | 0.9m | - |
| 11 | AD7142 | Capacitance to Digital | 14 | 16 | 250k | Serial I2C, Serial SPI | 20p | ±2 | 0.9m | $1.41 (AD7142ACPZ-1500RL7) |
| 12 | AD7746 | Capacitance to Digital | 2 | 24 | - | Serial I2C | 17p | ±4.096 | 0.7m | $6.29 (AD7746ARUZ) |
| 13 | AD7745 | Capacitance to Digital | 1 | 24 | - | Serial I2C | 17p | ±4.096 | 0.7m | $4.80 (AD7745ARUZ) |
| 14 | AD7877 | Touch Screen Controller | 5 | 12 | 125k | Serial | - | - | 880µ | $2.21 (AD7877ACPZ-500RL7) |
| 15 | AD7873 | Touch Screen Controller | 6 | 12 | 125k | SPORT | - | - | 670µ | $2.01 (AD7873ACPZ) |
| 16 | AD7843 | Touch Screen Controller | 4 | 12 | 125k | Serial | - | - | 240µ | $1.19 (AD7843ARQZ) |
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