AD8842ARZ Multichannel Voltage Output D/A Converters by Analog Devices

Status: Production
Series: AD8842
RoHS: Compliant
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The AD8842 provides eight general purpose digitally controlled voltage adjustment devices. The TrimDAC® capability allows replacement of the mechanical trimmer function in new designs. The AD8842 is ideal for ac or dc gain control of up to 50 kHz bandwidth signals. The four-quadrant multiplying capability is useful for signal inversion and modulation often found in video vertical deflection circuitry. Internally the AD8842 contains eight voltage output digital-to-analog converters, each with separate voltage inputs. A new current conveyor amplifier design performs the four-quadrant multiplying function with a single amplifier at the output of the current steering digital-to-analog converter. This approach offers an improved constant input resistance performance versus previous voltage switched DACs used in TrimDAC circuits, eliminating the need for additional input buffer amplifiers.Each DAC has its own DAC register that holds its output state. These DAC registers are updated from an internal serial-to-parallel shift register that is loaded from a standard 3-wire serial input digital interface. Twelve data bits make up the data word clocked into the serial input register. This data word is decoded where the first 4 bits determine the address of the DAC register to be loaded with the last 8 bits of data. A serial data output pin at the opposite end of the serial register allows simple daisy chaining in multiple DAC

Where to Buy

Prices starting from US$17.20

Distributor Stock
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Analog Devices
from US$17.21
171
in stock
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Chip One Stop
from US$17.20
1
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Newark Electronics
from US$22.99
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element14
from US$28.21
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Richardson RFPD
from US$23.69
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Farnell
from US$26.22
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Features

Low Cost
Replaces 8 Potentiometers
50 kHz 4-Quadrant Multiplying Bandwidth
Low Zero Output Error
Eight Individual Channels
3-Wire Serial Input
500 kHz Update Data Loading Rate
±3 V Output Swing
Midscale Preset, Zero Volts Out

Alternative Descriptions

8-BIT MULTIPLYING TRIMDAC | Analog Devices
Da Converter, 8Bit, Wsoic | Newark Electronics
DA CONVERTER, 8BIT, WSOIC | element14
CONVERTER - DAC | Richardson RFPD


Frequently Asked Questions

Where can I find additional details, specifications and documents for a AD8842ARZ?

Additional datasheets, footprints and schematics for AD8842ARZ are listed on our Part Details page. You can also find images and similar parts to AD8842ARZ on this page.

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What category does AD8842ARZ fall under?

The AD8842ARZ is listed under Multichannel Voltage Output D/A Converters.

Can I view similar or alternative parts?

You can view similar parts to AD8842ARZ when available in the Multichannel Voltage Output D/A Converters range under the specifications section at the bottom of the details page.

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Submit any questions directly to the customer support team of the distributor listing the product. For the AD8842ARZ you can contact the distributor directly for product support, shipping queries etc.

Is the AD8842ARZ RoHS compliant?

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

Which authorised distributors for AD8842ARZ have stock available?

Authorised distributors including Analog Devices, Chip One Stop, Newark Electronics, element14 and Richardson RFPD have stock available or on a lead time for AD8842ARZ.

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