MAX5822
PRODUCTIONDual, 12-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC
- Part Models
- 4
- 1ku List Price
- Starting From $8.47
Part Details
- Ultra-Low Supply Current
- 115µA at Vdd = 3.6V
- 135µA at Vdd = 5.5V
- 300nA Low-Power Power-Down Mode
- Single 2.7V to 5.5V Supply Voltage
- Fast 400kHz I²C-Compatible 2-Wire Serial Interface
- Schmitt-Trigger Inputs for Direct Interfacing to Optocouplers
- Rail-to-Rail Output Buffer Amplifiers
- Three Software-Selectable Power-Down Output Impedances
- 100kΩ, 1kΩ, and High Impedance
- Read-Back Mode for Bus and Data Checking
- Power-On Reset to Zero
- 8-Pin µMAX Package
The MAX5822 is a dual, 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 115µA at Vdd = 3.6V. A power-down mode decreases current consumption to less than 1µA. The MAX5822 features three software-selectable power-down output impedances: 100kΩ, 1kΩ, and high impedance. Other features include internal precision rail-to-rail output buffers and a power-on reset (POR) circuit that powers up the DAC in the 100kΩ power-down mode.
The MAX5822 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 MAX5822 minimizes digital noise feedthrough by disconnecting the clock (SCL) signal from the rest of the device when an address mismatch is detected. The MAX5822 is specified over the extended temperature range of -40°C to +85°C and is available in a miniature 8-pin µMAX® package. Refer to the MAX5821 data sheet for the 10-bit version and the MAX5820 data sheet for the 8-bit version.
Applications
- Battery-Powered Instrumentation
- Digital Gain and Offset Adjustments
- Low-Cost Instrumentation
- Programmable Attenuators
- Programmable Voltage and Current Sources
- VCO/Varactor Diode Control
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX5822LEUA+ | Micro-MAX, Thin Shrink Small-Outline | ||
| MAX5822LEUA+T | Micro-MAX, Thin Shrink Small-Outline | ||
| MAX5822MEUA+ | Micro-MAX, Thin Shrink Small-Outline | ||
| MAX5822MEUA+T | Micro-MAX, Thin Shrink Small-Outline |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Sep 19, 2018 - 1753N ASSEMBLY |
||
| MAX5822MEUA+ | PRODUCTION | |
| MAX5822MEUA+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
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