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EVAL-AD7276SDZ User Guide
UG-450
One Technology Way • P. O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
Evaluating the AD7276, 3 MSPS, 12-Bit ADC
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 20
FEATURES
Full featured evaluation board for the AD7276
PC control in conjunction with the system demonstration
platform (EVAL-SDP-CB1Z)
PC software for control and data analysis (time and
frequency domain)
Standalone capability
EVALUATION KIT CONTENTS
EVAL-AD7276SDZ evaluation board
Evaluation software CD for the AD7276
9 V mains power supply adapter
ADDITIONAL EQUIPMENT NEEDED
EVAL-SDP-CB1Z system demonstration platform, includes a
USB cable
Precision analog signal source
SMB cables
PC running Windows XP SP2, Windows Vista, or Windows 7
with USB 2.0 port
ONLINE RESOURCES
Documents
AD7276 data sheet
EVAL-AD7276SDZ user guide
Required Software
EVAL-AD7276SDZ evaluation software
GENERAL DESCRIPTION
The EVA L-AD7276SDZ is a full featured evaluation board that can
be used to easily evaluate all features of the AD7276. The AD7276
is a 12-bit, high speed, low power successive approximation ADC.
The part operates from a single 2.35 V to 3.6 V power supply and
features throughput rates of up to 3 MSPS. The part contains a
low noise, wide bandwidth track-and-hold amplifier that can
handle input frequencies greater than 55 MHz.
The evaluation board can be controlled via the system demon-
stration platform (SDP). The E VA L -SDP-CB1Z board allows
the evaluation board to be controlled via the USB port of a PC
using the AD7276 evaluation software. The EVAL -AD7276SDZ
generates all required power supplies on board and supplies power
to the EVA L-SDP-CB1Z controller board. On-board components
include the following:
AD8022: dual high speed, low noise op amp
ADA4000-1: single, low cost, precision JFET input operational
amplifier
AD780: 2.5 V/3.0 V ultrahigh precision band gap voltage
reference
ADP1613: step-up PWM dc-to-dc switching converter
ADP1720: 50 mA, high voltage, micropower linear regulator
ADP7104: 20 V, 500 mA, low noise, CMOS LDO
ADM1185: quad voltage monitor and sequencer
ADG3308: low voltage, 1.15 V to 5.5 V, 8-channel bidirectional
logic level translator
FUNCTIONAL BLOCK DIAGRAM
Figure 1.
5V
+
–
VCC
VAMP–
VAMP+
GND
GND
VIN
VIN
UNBIASED
EVAL-AD7276SDZ
EVAL-SDP-CB1Z
CONTROLLER
BOARD
BF527
DSP
SERIAL
INTERFACE
AD7276
GND
V
DD
SDATA
SCLK
CS
V
IN
ADG3308
LEVEL
SHIFTER
OP AMP
SUPPLIES
VIN GND
7V TO
9V
DC
INPUT JACK
VIN
ON-BOARD
POWER SUPPLIES
ADP7104
SDP +5V
ADP1720
+3.3V
ADP1613
±5V
ADM1185
POWER
SEQUENCER
ADA4000-1
BUFFER
ADA4000-1
BUFFER
AD8022
BIAS-UP
CIRCUIT
AD780
REF
48MHz
SCLK
10941-001
