| Number of ADC channels | 8 |
| ADC resolution (bits) | 12 |
| Number of DAC channels (#) | 3 |
| DAC: resolution (Bits) | 12 |
| Temperature sensing | Remote |
| 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 (uS) | 3 |
| DAC: output full scale (Min) (V) | 0 |
| DAC: output full scale (Max) (V) | 2.5, 5.0 |
- 100kHz SAMPLING RATE 12-BIT ADC
- 8 ANALOG INPUT CHANNELS
- THREE 12-BIT DACS
- NINE OPERATIONAL AMPLIFIERS
- THERMISTOR CURRENT SOURCE
- INTERNAL 2.5V REFERENCE
- SPI SERIAL INTERFACE
- 3V LOGIC COMPATIBLE
- SINGLE +5V SUPPLY
- LOW POWER: 40mW
- TQFP-48 PACKAGE
- APPLICATIONS
- CW LASER AND PUMP LASER CURRENT CONTROL IN DWDM
- TEC COOLER CURRENT CONTROL IN DWDM
- OPTICAL POWER MONITORING
- TUNABLE LASER
SPI is a trademark of Motorola.
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.
