Features; Evaluation Kit Contents; Additional Equipment Needed; General Description - Analog Devices EVAL-AD7175-8SDZ User Manual

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Evaluating the
20 µs Settling and Integrated Analog Input Buffers

FEATURES

Full featured evaluation board for the
PC control in conjunction with the Analog Devices, Inc.,
SDP-B board (EVAL-SDP-CB1Z)
PC software for control and data analysis (time domain)
Standalone capability

EVALUATION KIT CONTENTS

EVAL-AD7175-8SDZ evaluation board
Evaluation software CD
7 V to 9 V ac-to-dc adapter

ADDITIONAL EQUIPMENT NEEDED

DC signal source
7V TO 9V
VIN
AVDD1
CROSSPOINT
MULTIPLEXER
ON-BOARD
NOISE TEST
AIN0/REF2–
AIN1/REF2+
AIN15
AIN16
TO AD7175-8
TEMP
REFOUT PIN
SENSOR
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
AD7175-8 24-Bit, 250 kSPS, Sigma-Delta ADC with
AD7175-8

FUNCTIONAL BLOCK DIAGRAM

ADP1720 ADR445
5V LDO 5V VREF
AVDD2 REGCAPA REF– REF+
REFERENCE
1.8V
INPUT
LDO
BUFFERS
ANALOG
AVDD
INPUT
BUFFERS
Σ-Δ ADC
INPUT/OUTPUT
AVSS
CONTROL
AD7175-8
AVSS PDSW GPIO0 GPIO1 GPO2 GPO3
Figure 1. EVAL-AD7175-8SDZ
EVAL-AD7175-8SDZ User Guide

GENERAL DESCRIPTION

The EVAL-AD7175-8SDZ
AD7175-8, a 24-bit, 250 kSPS analog-to-digital converter
(ADC) with integrated analog input buffers, on-board power
supply regulation, and an external amplifier section for
amplifier evaluation. A 7 V to 9 V ac-to-dc adapter is regulated
to 5 V and 3.3 V; this supplies the
components. The evaluation board connects to a USB port via
the SDP-B system demonstration platform controller board
(EVAL-SDP-CB1Z).
The AD7175-8
AD7175-8 device functionality via a user accessible register
interface and provides dc time domain analysis in the form of
waveform graphs, histograms, and associated noise analysis for
ADC performance evaluation.
Full specifications on the
data sheet, which should be consulted in conjunction with this
user guide when working with the evaluation board. Full details
for the SDP-B controller board are available on the Analog
Devices website.
ADP1720
3.3V LDO
REFOUT IOVDD REGCAPD
BUFFERED
1.8V
PRECISION
LDO
REFERENCE
INT
REF
SERIAL
INTERFACE
AND
CONTROL
DIGITAL
FILTER
XTAL AND INTERNA L
CLOCK OSCILLATOR
CIRCUITRY
XTAL1 XTAL2/CLKIO DGND
Block Diagram
Rev. 0 | Page 1 of 10
evaluation board features the
AD7175-8
evaluation software fully configures the
AD7175-8 are available in the product
ADP7104
5V LDO
USB
CS
SCLK
DIN
ADSP-BF527
DOUT/RDY
SYNC POWER
ERROR
SDP-B
UG-901
and support
LED
STATUS