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DM100 , Pocket Multimeter 4000 Count Autoranging DMM
DM100 , Pocket Multimeter 4000 Count Autoranging DMM
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DAC7574IDGS-DAC7574IDGSG4-DAC7574IDGSR-DAC7574IDGSRG4
12-Bit Quad Voltage Output Digital-to-Analog Converter w/ I2C Interface
www.ti.com
Resistor
Network8
Data
Buffer A
DAC
Register A
Data
Buffer D
DAC
Register D
DAC A
DAC D
Buffer
Control
Register
Control
Power-Down
Control Logic
VOUTA
VOUTB
VOUTC
VOUTD A1 GND
I2C BlockSCL
SDA
VDD
DAC7574SLAS375JUNE 2003
QUAD, 12-BIT, LOW-POWER, VOLTAGE OUTPUT,2C INTERFACE DIGITAL-TO-ANALOG CONVERTER
FEATURES DESCRIPTION Micropower Operation: 600 µAat5V VDD The DAC7574isa low-power, quad channel, 12-bit·
Power-On Resetto Zero buffered voltage output DAC.Its on-chip precision out-
put amplifier allows rail-to-rail output swing to be·
+2.7Vto +5.5V Analog Power Supply achieved. The DAC7574 utilizesanI2C compatible two·
12-Bit Monotonic wire serial interface supporting high-speed interface·
I2 C Interface Upto 3.4 Mbps mode with address supportofupto four DAC7574sfor totalof16 channelson the bus.·
Data Transmit Capability On-Chip Output Buffer Amplifier, Rail-to-Rail The DAC7574 uses VDD and GNDto set the output
Operation range of the DAC. The DAC7574 incorporatesa·
Double-Buffered Input Register power-on-reset circuit that ensures that the DAC output
powersupat zero volts and remains there untila valid·
Address Support for upto Four DAC7574swrite takes placeto the device. The DAC7574 contains·
Synchronous Update Support for upto16 a power-down feature, accessedvia the internal control
Channels register, that reduces the current consumptionof the·
Operation From -40°Cto 105°C deviceto 200 nAat5V.·
Small10 Lead MSOP Package The low power consumptionof this partin normal
operation makesit ideally suitedto portable battery
APPLICATIONS operated equipment. The power consumptionis less·
Process Control than 3mWat VDD=5V reducingto1 µWin power-down
mode.·
Data Acquisition SystemsThe DAC7574is availableina 10-lead MSOP package.·
Closed-Loop Servo Control PC Peripherals Portable Instrumentation
