Maxim > Products > Digital-to-Analog Converters > MAX5823, MAX5824, MAX5825

MAX5823, MAX5824, MAX5825

Ultra-Small, Octal Channel, 8-/10-/12-Bit Buffered Output DACs with Internal Reference and I2C Interface

Feature-Rich, 8-Channel DAC Family Offered in a 5.75mm2 WLP Footprint
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Status Explanations for product status codes

Part Number Status
MAX5823 Active: In Production.
MAX5824 Active: In Production.
MAX5825 Active: In Production.

Description

The MAX5823/MAX5824/MAX5825 8-channel, low-power, 8-/10-/12-bit, voltage-output digital-to-analog converters (DACs) include output buffers and an internal 3ppm/°C reference that is selectable to be 2.048V, 2.500V, or 4.096V. The MAX5823/MAX5824/MAX5825 accept a wide supply voltage range of 2.7V to 5.5V with extremely low power (6mW) consumption to accommodate most low-voltage applications. A precision external reference input allows rail-to-rail operation and presents a 100kΩ (typ) load to an external reference.

The MAX5823/MAX5824/MAX5825 have an I2C-compatible, 2-wire interface that operates at clock rates up to 400kHz. The DAC output is buffered and has a low supply current of less than 250µA per channel and a low offset error of ±0.5mV (typ). On power-up, the MAX5823/ MAX5824/MAX5825 reset the DAC outputs to zero or midscale based on the status of M/active-low Z logic input, providing flexibility for a variety of control applications. The internal reference is initially powered down to allow use of an external reference. The MAX5823/MAX5824/MAX5825 allow simultaneous output updates using software LOAD commands or the hardware load DAC logic input (active-low LDAC).

The MAX5823/MAX5824/MAX5825 feature a watchdog function which can be enabled to monitor the I/O interface for activity and integrity.

A clear logic input (active-low CLR) allows the contents of the CODE and the DAC registers to be cleared asynchronously and simultaneously sets the DAC outputs to the programmable default value. The MAX5823/MAX5824/MAX5825 are available in a 20-pin TSSOP and an ultra-small, 20-bump WLP package and are specified over the -40°C to +125°C temperature range.

Data Sheet

Download this datasheet in PDF formatDownload Rev 2 (PDF, 3.7MB)
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An evaluation board is available: MAX5825AEVKIT MAX5825PMB1 MAXPMBAE

Key Features

  • Eight High-Accuracy DAC Channels
    • 12-Bit Accuracy Without Adjustment
    • ±1 LSB INL Buffered Voltage Output
    • Guaranteed Monotonic Over All Operating Conditions
    • Independent Mode Settings for Each DAC
  • Three Precision Selectable Internal References
    • 2.048V, 2.500V, or 4.096V
  • Internal Output Buffer
    • Rail-to-Rail Operation with External Reference
    • 4.5µs Settling Time
    • Outputs Directly Drive 2kΩ Loads
  • Small 6.5mm × 4.4mm 20-Pin TSSOP or Ultra-Small 2.5mm × 2.3mm 20-Bump WLP Package
  • Wide 2.7V to 5.5V Supply Range
  • Separate 1.8V to 5.5V VDDIO Power-Supply Input
  • Fast 400kHz I2C-Compatible, 2-Wire Serial Interface
  • Pin-Selectable Power-On-Reset to Zero-Scale or Midscale DAC Output
  • Active-Low LDAC and Active-Low CLR For Asynchronous DAC Control
  • Three Software-Selectable Power-Down Output Impedances
    • 1kΩ, 100kΩ, or High Impedance
 

Applications/Uses

  • Automatic Tuning and Optical Control
  • Gain and Offset Adjustment
  • Portable Instrumentation
  • Power Amplifier Control and Biasing
  • Process Control and Servo Loops
  • Programmable Voltage and Current Sources
   

Key Specifications:

Precision DACs
Part Number Resolution
(bits)
Channels Output Type Reference INL
(±LSB)
Interface Supply Range
(V)
Supply Range
(V)
ICC
(mA)
Settling Time
(µs)
Oper. Temp.
(°C)
Budgetary
Price
max min max max typ See Notes
MAX5823  8 8 Voltage- Buffered Int./Ext. 0.25 Serial - I2C 2.7 5.5 2 2.2 -40 to +125 $2.82 @1k
MAX5824  10 0.5 2.6 $4.02 @1k
MAX5825  12 1 4.5 $6.47 @1k
See All Precision DACs (279)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.



Diagram

MAX5823, MAX5824, MAX5825: Functional Diagram
Functional Diagram

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Information Index

Document Ref.: 19-6185 Rev 2; 2013-03-29
This page last modified: 2013-07-31