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WM2638

Features: · Two 12-bit voltage output DACs· Single 2.7V to 5.5V supply operation· DNL ±0.4 LSBs, INL ±2 LSBs· Low power consumption· 12mW typical in fast mode· 6mW typical in slow mode· TMS320, (Q)SPIä, and Microwireä compatibleserial interface· Programmable settling time 1ms or 3.5ms ty...

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SeekIC No. : 004546094 Detail

WM2638: Features: · Two 12-bit voltage output DACs· Single 2.7V to 5.5V supply operation· DNL ±0.4 LSBs, INL ±2 LSBs· Low power consumption· 12mW typical in fast mode· 6mW typical in slow mode· TMS320, (Q)S...

WM2638 Data Sheet

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Part Number:
WM2638
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· Two 12-bit voltage output DACs
· Single 2.7V to 5.5V supply operation
· DNL ±0.4 LSBs, INL ±2 LSBs
· Low power consumption
· 12mW typical in fast mode
· 6mW typical in slow mode
· TMS320, (Q)SPIä, and Microwireä compatibleserial interface
· Programmable settling time 1ms or 3.5ms typical
· Power down mode 10nA


Application

· Battery powered test instruments
· Digital offset and gain adjustment
· Battery operated/remote industrial controls
· Machine and motion control devices
· Cellular telephones
· Wireless telephones and communication systems
· Speech synthesis
· Arbitrary waveform generation


Pinout

Connection Diagram


Specifications

CONDITION MIN MAX
Supply voltages, DVDD to DGND, AVDD to AGND   7V
Supply voltage differences, AVDD to DVDD -2.8V 2.8V
Digital input voltage -0.3V DVDD + 0.3V
Reference input voltage -0.3V AVDD + 0.3V
Operating temperature range, TA WM2614CDT
WM2614IDT		 0°C
-40°C		 70°C
85°C
Storage temperature -65°C 150°C
Lead temperature 1.6mm (1/16 inch) soldering for 10 seconds   260°C



Description

The WM2638 is a dual 12-bit voltage output, resistor string, digitalto-analogue converter. A software controlled power down mode isprovided that reduces current consumption to 10nA.

The WM2638 features an internal programmable voltage referencesimplifying overall system design. A reference voltage may also besupplied externally.

The device has been designed to interface efficiently to industrystandard microprocessors and DSPs, including the TMS320family. The WM2638 is programmed with a 16-bit serial wordcomprising of a latch address, mode control bits and DAC orcontrol data.

Excellent performance of the WM2638 is delivered with a typical DNL of 0.4LSBs.The programmable settling time allows the designer to optimisespeed versus power consumption. The output stage is buffered bya x2 gain near rail-to-rail amplifier.

The WM2638 is available in an 8-pin SOIC package ideal for spacecriticalapplications. Commercial temperature (0° to 70°C) andIndustrial temperature (-40° to 85°C) variants are supported.




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