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Manufacturer / Brand: AD
Details: Simultaneous Sampling Dual 250 kSPS 12-Bit ADC
Series: AD7862
Quantity Available: Over 84540 pieces

Datasheet for AD7862:

AD7862 datasheet
Price for AD7862
Product Parameters
  • Manufacturer Part Number : AD7862
  • Manufacturer : AD
  • Description : Simultaneous Sampling Dual 250 kSPS 12-Bit ADC
  • Series : AD7862
  • Reference Price : USD 11.648
  • Our Price : We have a better price, contact us by email
  • Product Type : Precision A/D Converters
  • Function : Simultaneous Sampling A/D Converters
  • Current Suggest : Production
  • Status : Production
  • RoHS Status: -
  • Voltage: -
  • Feature: -
  • Package Case: -
  • Temperature Range: -
  • Packing: Reel/Tray/Tube
  • Standard Packing Quantity: -
  • Country of Origin: -
  • Other Part Number : AD7862
  • Shipping methods : DHL FEDEX UPS TNT
  • Delivery Time : Ship within 1 day.
  • Manufacturer Production time : 6-8 weeks (Normally have stocks)
  • Weight : 0.001KG

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Features and Benefits of AD7862
  • Two Fast 12-Bit ADCs
  • Four Input Channels
  • Simultaneous Sampling & Conversion
  • 4 µs Throughput Time
  • Single Supply Operation
  • High Speed Parallel Interface
  • Low Power, 60 mW typ
  • Selection of Input Ranges:
    ±10 V for AD7862-10
    ±2.5 V for AD7862-3
    0 V to 2.5 V for AD7862-2
  • Power Saving Mode, 50 µW typ
  • Overvoltage Protection on Analog Inputs
  • 14-Bit Pin Compatible Upgrade (AD7863)
Product Detailed Description for AD7862
The AD7862 is a high speed, low power, dual 12-bit A/D converter that operates from a single +5 V supply. The part contains two 4 µs successive approximation ADCs, two track/ hold amplifiers, an internal +2.5 V reference and a high speed parallel interface. There are four analog inputs that are grouped into two channels (A & B) selected by the A0 input. Each channel has two inputs (VA1 & VA2 or VB1 & VB2) that can be sampled and converted simultaneously thus preserving the relative phase information of the signals on both analog inputs. The part accepts an analog input range of ±10 V (AD7862-10), ±2.5 V (AD7862-3) and 0­2.5 V (AD7862-2). Overvoltage protection on the analog inputs for the part allows the input voltage to go to ±17 V, ±7 V or +7 V, respectively, without causing damage.

A single conversion start signal (CONVST) places both track/ holds into hold simultaneously and initiates conversion on both inputs. The BUSY signal indicates the end of conversion, and at this time the conversion results for both channels are available to be read. The first read after a conversion accesses the result from VA1 or VB1, while the second read accesses the result from VA2 or VB2, depending on whether the multiplexer select A0 is low or high, respectively. Data is read from the part via a 12-bit parallel data bus with standard CS and RD signals.

In addition to the traditional dc accuracy specifications such as linearity, full-scale and offset errors, the part is also specified for dynamic performance parameters including harmonic distortion and signal-to-noise ratio.

The AD7862 is fabricated in Analog Devices' Linear Compatible CMOS (LC2MOS) process, a mixed technology process that combines precision bipolar circuits with low power CMOS logic. It is available in 28-lead SSOP, SOIC and DIP.

Lifecycle information of AD7862

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

AD7862 More photos
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