The AD7865 is a fast, low power, four-channel simultaneous sampling 14-bit A/D converter that operates from a single +5 V supply. The part contains a 2.5 µs successive approximation ADC, four track/hold amplifiers, 2.5 V reference, on chip clock oscillator, signal conditioning circuitry and a high speed parallel interface. The input signals on four channels are sampled simultaneously thus preserving the relative phase information of the signals on the four analog inputs. The part accepts analog input ranges of ±10 V, ±5 V or ±2.5 V. Overvoltage protection on the analog inputs for the part allows the input voltage to go to ±20 V without damaging the parts or affecting a conversion in progress.
|Title||Content Type||File Type|
|AD7865: Four-Channel, Simultaneous Sampling, Fast, 14-Bit ADC Data Sheet (Rev B, 12/2000) (pdf, 210 kB)||Data Sheets|
AN-354: Ask the Applications Engineer 1-Multi Troubles
(pdf, 160 kB)
Addresses problems often encountered with LOG Circuits, Time Division Analog Multiplexing, and ADC Power Strobing
|MS-2210: Designing Power Supplies for High Speed ADC (pdf, 327 kB)||Technical Articles|
High-Performance Multichannel Power-Line Monitoring with Simultaneous-Sampling ADCs
By Colm Slattery, Analog Devices, Inc. (Analog Dialogue, Vol. 41, January 2007)
|RAQs index||Rarely Asked Questions||HTML|
|Glossary of EE Terms||Glossary||HTML|
Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.
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