AMC7820
AM
C78
20 SBAS231B – MARCH 2002 ANALOG MONITORING AND CONTROL
FEATURES DESCRIPTION в—Џ 100kHz SAMPLING RATE 12-BIT ADC 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 SPIв„ў 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. в—Џ 8 ANALOG INPUT CHANNELS
в—Џ THREE 12-BIT DACS
в—Џ NINE OPERATIONAL AMPLIFIERS
в—Џ THERMISTOR CURRENT SOURCE
в—Џ INTERNAL 2.5V REFERENCE
в—Џ SPI SERIAL INTERFACE
в—Џ 3V LOGIC COMPATIBLE 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 –40В°C to +85В°C temperature range. в—Џ SINGLE +5V SUPPLY …
