MAX5812MEUT+T

The MAX5812 is a 12-bit, voltage-output DAC with an I2C/SMBus-compatible 2-wire interface. The device consists of a serial interface, power-down circuitry, input and DAC registers, a 12-bit resistor string DAC, unity - gain output buffer, and output resistor network. The serial interface decodes the address and control bits, routing the data to either the input or DAC register. Data can be directly written to the DAC r

Applications

• Digital Gain and Offset Adjustments
• Programmable Voltage and Current Sources
• Programmable Attenuation
• VCO/Varactor Diode Control
• Low-Cost Instrumentation
• Battery-Operated Equipment

Key features

• The MAX5812 is a single, 12-bit voltage-output, digital-to - analog converter (DAC) with an I²C-compatible 2-wire interface that operates at clock rates up to 400kHz.
• The device operates from a single 2.7V to 5.5V supply and draws only 100μA at VDD = 3.6V.
• A low-power power - down mode decreases current consumption to less than 1μA.
• The MAX5812 features three software-selectable power-down output impedances: 100kΩ, 1kΩ, and high impedance.
• Other features include an internal precision Rail-to-Rail output buffer and a power-on reset circuit that powers up the DAC in the 100kΩ power-down mode.
• The MAX5812 features a double-buffered I²C-compatible serial interface that allows multiple devices to share a single bus.
• All logic inputs are CMOS-logic compatible and buffered with Schmitt triggers, allowing direct interfacing to optocoupled and transformer-isolated interfaces.
• The MAX5812 minimizes digital noise feedthrough by disconnecting the clock (SCL) signal from the rest of the device when an address mismatch is detected.
• The MAX5812 is specified over the extended temperature range of -40°C to +85°C and is available in a space-saving 6-pin SOT23 package.