The AMC7820 is a complete analog monitoring and control circuit that includes an 8-channel, 12-bit Analog-to-Digital Converter (ADC), three 12-bit Digital-to-Analog Converters (DACs), nine operational amplifiers, a thermistor current source, an internal +2.5V reference, and an SPI™ serial interface. External reference may be applied. Typical power dissipation is 40mW. For the ADC, the unbuffered analog input range is 0V to +5.0V, and the buffered analog common-mode input range is 0V to +3.8V. For the DACs, the analog output range is 0V to +2.5V or 0V to +5.0V.
The AMC7820 is ideal for multichannel applications where low power and small size are critical. The AMC7820 is available in a TQFP-48 package and is fully specified and tested over the –40°C to +85°C temperature range.
SPI is a trademark of Motorola.
| Number of ADC channels | 8 |
| ADC resolution (Bps) | 12 |
| Number of DAC channels | 3 |
| DAC resolution (Bps) | 12 |
| Temperature sensing | Remote |
| Number of GPIOs | 0 |
| Interface type | SPI |
| Features | Temp Sensor |
| Operating temperature range (°C) | -40 to 85 |
| Rating | Catalog |
| ADC sampling rate (ksps) | 100 |
| ADC analog input range (min) (V) | 0 |
| ADC analog input range (max) (V) | 5 |
| DAC settling time (µs) | 3 |
| DAC output full-scale (min) (V) | 0 |
| DAC output full-scale (max) (V) | 2.5, 5 |
| TQFP (PFB) | 48 | 81 mm² 9 x 9 |
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