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MAX5812

Maxim
Part Number MAX5812
Manufacturer Maxim
Description 12-Bit Low-Power / 2-Wire / Serial Voltage-Output DAC
Published Apr 29, 2005
Detailed Description 19-2340; Rev 0; 1/02 12-Bit Low-Power, 2-Wire, Serial Voltage-Output DAC General Description The MAX5812 is a single, 1...
Datasheet PDF File MAX5812 PDF File

MAX5812
MAX5812

Overview
19-2340; Rev 0; 1/02 12-Bit Low-Power, 2-Wire, Serial Voltage-Output DAC General Description The MAX5812 is a single, 12-bit voltage-output, digital-toanalog 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 powerdown 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.
Refer to the MAX5811 for the 10-bit version.
o Ultra-Low Supply Current 100µA at VDD = 3.
6V 130µA at VDD = 5.
5V o 300nA Low-Power Power-Down Mode o Single 2.
7V to 5.
5V Supply Voltage o Fast 400kHz I2C-Compatible 2-Wire Serial Interface o Schmitt-Trigger Inputs for Direct Interfacing to Optocouplers o Rail-to-Rail Output Buffer Amplifier o Three Software-Selectable Power-Down Output Impedances 100kΩ, 1kΩ, and High Impedance o Read-Back Mode for Bus and Data Checking o Power-On Reset to Zero o Miniature 6-Pin SOT23 Package Features MAX5812 Ordering Information PART MAX5812LEUT MAX5812MEUT MAX5812NEUT MAX5812PEUT TEMP RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C PINPACKAGE 6 SOT23 6 SOT23 6 SOT23 6 SOT23 TOP MA...


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