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AD8842 - CMOS TrimDAC

Description

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.

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.

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Datasheet preview – AD8842

Datasheet Details

Part number AD8842
Manufacturer Analog Devices
File Size 571.79 KB
Description CMOS TrimDAC
Datasheet download datasheet AD8842 Datasheet
Additional preview pages of the AD8842 datasheet.

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Full PDF Text Transcription

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a 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 APPLICATIONS Automatic Adjustment Trimmer Replacement Vertical Deflection Amplitude Adjustment Waveform Generation and Modulation 8-Bit Octal, 4-Quadrant Multiplying, CMOS TrimDAC AD8842 FUNCTIONAL BLOCK DIAGRAM VDD LD SDI CLK DECODED ADDRESS 8 LOGIC DATA 48 SERIAL REGISTER 8X 8 DAC R E G I S T E R S 8 8 DAC A G AD8842 DAC H G VINA VOUT A VINH VOUT H GND SDO PR VSS GENERAL DESCRIPTION The AD8842 provides eight general purpose digitally controlled voltage adjustment devices.
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