AMC7820 Texas instruments

AMC7820

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AMC7820

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Описание

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.

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.

Resolution (Bits)	12
Sample rate (max) (ksps)	100
Interface type	SPI
Architecture	SAR
Input type	Single-ended
Multichannel configuration	Multiplexed
Rating	Catalog
Reference mode	Ext, Int
Input voltage range (max) (V)	5
Input voltage range (min) (V)	0
Features	Temp Sensor
Operating temperature range (°C)	-40 to 85
Power consumption (typ) (mW)	40
Analog supply (min) (V)	4.75
Analog supply voltage (max) (V)	5.25
Digital supply (min) (V)	2.7
Digital supply (max) (V)	5.25