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AD7801

Features: ·Single 8-Bit DAC·20-Pin SOIC/TSSOP Package·+2.7 V to +5.5 V Operation·Internal and External Reference Capability·DAC Power-Down Function·Parallel Interface·On-Chip Output Buffer Rail-to-Rail Operation·Low Power Operation 1.75 mA max @ 3.3 V·Power-Down to 1 mA max @ 258CApplication·Porta...

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SeekIC No. : 004270850 Detail

AD7801: Features: ·Single 8-Bit DAC·20-Pin SOIC/TSSOP Package·+2.7 V to +5.5 V Operation·Internal and External Reference Capability·DAC Power-Down Function·Parallel Interface·On-Chip Output Buffer Rail-to-R...

AD7801 Data Sheet

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Part Number:
AD7801
Supply Ability:
5000

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

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Product Details

Description



Features:

·Single 8-Bit DAC
·20-Pin SOIC/TSSOP Package
·+2.7 V to +5.5 V Operation
·Internal and External Reference Capability
·DAC Power-Down Function
·Parallel Interface
·On-Chip Output Buffer Rail-to-Rail Operation
·Low Power Operation 1.75 mA max @ 3.3 V
·Power-Down to 1 mA max @ 258C






Application

·Portable Battery Powered Instruments
·Digital Gain and Offset Adjustment
·Programmable Voltage and Current Sources
·Programmable Attenuators






Pinout

Connection Diagram

AD7801 Diagram




Specifications

VDD to GND . . . . . . . . . . . . . . . . . . . . ..... . . . 0.3 V to +7 V
Reference Input Voltage to AGND . . . .0.3 V to VDD + 0.3 V
Digital Input Voltage to DGND . . . . . . .0.3 V to VDD + 0.3 V
AGND to DGND . . . . . . . . . . . . . . . . . . .... . . 0.3 V to +0.3 V
VOUT to AGND . . . . . . . . . . . . . . . . . . ..0.3 V to VDD + 0.3 V
Operating Temperature Range
Commercial (B Version) . . . . . . . . . . . 40°C to +105°C
Storage Temperature Range . . . . . . . . . . 65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . .. . . . .+150°C
SSOP Package, Power Dissipation . . . . . . . . . . . . . . . 700 mW
JA Thermal Impedance . . . . . . . . . . . . . . . . . . 143°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . .+215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . .+220°C
SOIC Package, Power Dissipation . . . . . . . . . . . . . . . 870 mW
JA Thermal Impedance . . . . . . . . . . . . . . . . . . . 74°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . .+215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . .. . . .+220°C


Resolution (Bits) 8bit
DAC Update Rate 833kSPS
DAC Settling Time 1.2s
# DAC Outputs 1
DAC Type Voltage Out
DAC Input Format Par
Output FSR (Uni Vdd/2),(Uni Vref)
Ref Int/Ext Int/Ext
Supply Vnom Single(+3),Single(+3.3),Single(+5)
Pwr Diss 12.9mW
Package SOIC,SOP





Description

The AD7801 is a single, 8-bit, voltage out DAC that operates from a single +2.7 V to +5.5 V supply. Its on-chip precision output buffer allows the DAC output to swing rail to rail. The AD7801 has a parallel microprocessor and DSP compatible interface with high speed registers and double buffered interface logic. Data is loaded to the input register on the rising edge ofCS or WR.

Reference selection for the AD7801 can be either an internal reference derived from the VDD or an external reference applied at the REFIN pin. The output of the DAC can be cleared by using the asynchronousCLR input.

The low power consumption of this part AD7801 makes it ideally suitedto portable battery operated equipment. The power consumption is less than 5 mW at 3.3 V, reducing to less than 3 mW in power-down mode.

The AD7801 is available in a 20-lead SOIC and a 20-lead TSSOP package.






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