AD7861

Features: 11-Bit Resolution Analog-to-Digital ConverterSeven Single-Ended Analog InputsFour Input Channels Simultaneously SampledExpansion with 4 Multiplexed InputsInternal 2.5 V Reference3.2 s Conversion Time per ChannelUser Definable Channel SequencingSingle Supply +5 V OperationDouble Buffered ...

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AD7861 Picture
SeekIC No. : 004271083 Detail

AD7861: Features: 11-Bit Resolution Analog-to-Digital ConverterSeven Single-Ended Analog InputsFour Input Channels Simultaneously SampledExpansion with 4 Multiplexed InputsInternal 2.5 V Reference3.2 s Conv...

floor Price/Ceiling Price

Part Number:
AD7861
Supply Ability:
5000

Price Break

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

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Upload time: 2024/4/28

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Product Details

Description



Features:

11-Bit Resolution Analog-to-Digital Converter
Seven Single-Ended Analog Inputs
Four Input Channels Simultaneously Sampled
Expansion with 4 Multiplexed Inputs
Internal 2.5 V Reference
3.2 s Conversion Time per Channel
User Definable Channel Sequencing
Single Supply +5 V Operation
Double Buffered Register Outputs
6.25 MHz to 12.5 MHz Operating Clock Range





Application

Motor Control
3-Phase Power Measurement
Cellular Phones
Data Acquisition





Pinout

  Connection Diagram

AD7861 Diagram




Specifications

Supply Voltage (VDD) . . . . . . . . . . . . . .. . . 0.3 V to +7.0 V
Digital Input Voltage . . . . . . . . . . . . . . . . . .. . . 0.3 V to VDD
Analog Input Voltage . . . . . . . . . . . . . . . . . . . . 0.3 V to VDD
Analog Reference Input Voltage . . . . . . . . .. . 0.3 V to VDD
Digital Output Voltage Swing . . . . . . . . . . . . . . 0.3 V to VDD
Analog Reference Output Swing . . . . . . . . . . . 0.3 V to VDD
Operating Temperature . . . . . . . . . . . . .. . 40°C to +85°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . +280°C



Resolution (Bits) 11bit
T-Put Rate 28.6kSPS
# Chan 7
Supply V Single(+5)
Pwr Diss (max) 50mW
Interface Par
Ain Range Uni (Vref) x 2,Uni 5.0V
SNR (dB) 60dB
Pkg Type LCC





Description

The AD7861 is a multichannel simultaneous sampling A/D Converter (ADC) configured for the acquisition of voltage inputs in a motor control solution or three-phase power system.

The AD7861 combined with Analog Devices' 16-bit fixedpoint digital signal processor (DSP) provides a low cost 16-bit fixed-point microcontroller solution.

The input stage of AD7861 has been designed to accommodate the types of signals frequently found in motor drives. The VIN1, VIN2, and VIN3 channels are simultaneously sampled inputs suitable for stator current acquisition. The AUX0AUX3 channels are multiplexed and are suitable for slower moving inputs such as temperature and bus voltage of the diode rectifier output in a motor control application.






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