1 Features

1• Eight Pseudo- or Four Fully-Differential Inputs

• Simultaneous Sampling of Two Channels

• Excellent AC Performance:

– SNR:

93 dB (ADS8363)

85 dB (ADS7263)

73 dB (ADS7223)

– THD:

–98 dB (ADS8363)

–92 dB (ADS7263)

–86 dB (ADS7223)

• Dual Programmable and Buffered 2.5-V

Reference Allows:

– Two Different Input Voltage Range Settings

– Two-Level PGA Implementation

• Programmable Auto-Sequencer

• Integrated Data Storage (up to 4 per channel) for

Oversampling Applications

• 2-Bit Counter for Safety Applications

• Fully Specified Over the Extended Industrial

Temperature Range: –40°C to +125°C

2 Applications

• Motor Control: Current and Position Measurement

including Safety Applications

• Power Quality Measurement

• Three-Phase Power Control

• Programmable Logic Controllers

• Industrial Automation

• Protection Relays

3 Description

The ADS8363 is a dual, 16-bit, 1-MSPS analog-todigital

converter (ADC) with eight pseudo- or four

fully-differential input channels grouped into two pairs

for simultaneous signal acquisition. The analog inputs

are maintained differentially to the input of the ADC.

The input multiplexer can be used in either pseudodifferential

mode, supporting up to four channels per

ADC (4x2), or in fully-differential mode that allows to

convert up to two inputs per ADC (2x2). The

ADS7263 is a 14-bit version and the ADS7223 is a

12-bit version of the ADS8363.

The ADS8363, ADS7263, and ADS7223 offer two

programmable reference outputs, flexible supply

voltage ranges, a programmable auto-sequencer,

data storage of up to four conversion results per

channel, and several power-down features.

All devices are offered in a 5-mm x 5-mm, 32-pin

VQFN package.