AD7863ARZ-3 Simultaneous Sampling A/D Converters by Analog Devices

Simultaneous Sampling A/D Converters
Status: Production
Series: AD7863
RoHS: Compliant
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The AD7863 is a high speed, low power, dual 14-bit analog-to-digital converter that operates from a single 5 V supply.The part contains two 5.2 μs successive approximation ADCs, two track/hold amplifiers, an internal 2.5 V reference and a high speed parallel interface. Four analog inputs are grouped into two channels (A and B) selected by the A0 input. Each channel has two inputs (VA1 and VA2 or VB1 and 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 (AD7863-10), ±2.5 V (AD7863-3), and 0 V to 2.5 V (AD7863-2). 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) simultaneously places both track/holds into hold and initiates conversion on both channels. 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, and 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 14-bit parallel data bus with standard CS and RD signals. In addition to the traditional dc accuracy specifications such as linearity, gain, and offset errors, the part is also specified for dynamic performance parameters including harmonic distortion and signal-to-noise ratio.The AD7863 is fabricated in the Analog Devices, Inc. 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 SOIC_W and SSOP.PRODUCT HIGHLIGHTS The AD7863 features two complete ADC functions allowing simultaneous sampling and conversion of two channels. Each ADC has a two-channel input mux. The conversion result for both channels is available 5.2 μs after initiating conversion. The AD7863 operates from a single 5 V supply and consumes 70 mW typical. The automatic power-down mode, where the part goes into power-down once conversion is complete and wakes up before the next conversion cycle, makes the AD7863 ideal for battery-powered or portable

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Prices starting from US$28.89

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Analog Devices
from US$28.89
947
in stock
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Rochester Electronics
from US$30.41
54
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TME
from US$46.80
0
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Richardson RFPD
from US$38.29
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Features

Two fast 14-bit ADCs
Four input channels
Simultaneous sampling and conversion
5.2 μs conversion time
Single supply operation
High speed parallel interface
Low power, 70 mW typical
Selection of input ranges 
±10 V for AD7863-10 
±2.5 V for AD7863-3 
0 V to 2.5 V for AD7863-2
Power saving mode, 105 μW maximum
Overvoltage protection on analog inputs
14-bit lead compatible upgrade to AD7862

Last 6 months Inventory & Pricing History

Alternative Descriptions

2CHSIMULTANEOUS SAMP 14-BIT DU | Analog Devices
IC: A/D converter | TME
4-Channel Dual ADC SAR 175ksps 14-bit Parallel 28-Pin SOIC W Tube | Richardson RFPD

Frequently Asked Questions

Where can I find additional details, specifications and documents for a AD7863ARZ-3?

Additional datasheets, footprints and schematics for AD7863ARZ-3 are listed on our Part Details page. You can also find images and similar parts to AD7863ARZ-3 on this page.

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Distributor pricing and stock information is available for AD7863ARZ-3 on our Product Comparison page. Access via the 'View Pricing & Stock' button to view AD7863ARZ-3 price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does AD7863ARZ-3 fall under?

The AD7863ARZ-3 is listed under Simultaneous Sampling A/D Converters.

Can I view similar or alternative parts?

You can view similar parts to AD7863ARZ-3 when available in the Simultaneous Sampling A/D Converters range under the specifications section at the bottom of the details page.

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Is the AD7863ARZ-3 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for AD7863ARZ-3 have stock available?

Authorised distributors including Analog Devices, Rochester Electronics, TME and Richardson RFPD have stock available or on a lead time for AD7863ARZ-3.

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