EVAL-AD5532EB Analog Devices Inc, EVAL-AD5532EB Datasheet

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EVAL-AD5532EB

Manufacturer Part Number
EVAL-AD5532EB
Description
BOARD EVAL FOR AD5532
Manufacturer
Analog Devices Inc
Datasheets

Specifications of EVAL-AD5532EB

Rohs Status
RoHS non-compliant
Number Of Dac's
32
Number Of Bits
14
Outputs And Type
32, Single Ended
Sampling Rate (per Second)
45k
Data Interface
Serial
Settling Time
22µs
Dac Type
Voltage
Voltage Supply Source
Analog and Digital
Operating Temperature
-40°C ~ 85°C
Utilized Ic / Part
AD5532
Lead Free Status / Rohs Status
Not Compliant
FEATURES
Full-Featured Evaluation Board for the AD5532/AD5533
On-Board 3V Reference
Various Link and Switch Options
PC Software for Control af AD5532/AD5533
Socketed AD5532/AD5533 for Easy Replacement
INTRODUCTION
This Technical Note describes the evaluation board for the
AD5532 and AD5533. These devices combine a 32 channel
voltage translation function with an infinite output hold
capability. An analog input voltage on the common input pin,
Vin, is sampled and its digital representation transferred to a
chosen DAC register. The output of this DAC is then
updated to reflect the new contents of the DAC register.
Channel selection is accomplished via the parallel address
inputs A0-A5 or via the serial input port. The AD5532 is
operated with AVcc= +5V+/-5%, DVcc= 2.5V to 5.25V,
Vss= -4.75V to -16.5V, Vdd= 10V to 16V and requires a
stable +3V reference on the REF_IN pin as well as an offset
voltage on OFFS_IN. These devices are available in a 74-
lead LFBGA package. Full datails are available in the
AD5532 and AD5533 datasheets from Analog Devices and
should be consulted in conjunction with this Technical Note
when using the Evaluation Board.
On-board components include an AD780 which is a pin
programmable
and an AD5541 which is a 16-bit DAC that can be used to
REV. 0 04/00
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
+3V ultra high precision bandgap reference
V31
V0
V0
V31
32-Channel
AD5532/33
FUNCTIONAL BLOCK DIAGRAM
DAC/SHA
Power Supply Inputs
Ain
Evaluation Board for 32 Channel,
provide an analog input voltage to the AD5532/AD5533.
There are various link and switch options which are ex-
plained in detail on page 2.
Interfacing to this board from a PC is through a 36-way
Centronics connector. This 36-way connector is compatible
with most printer cables and is usually connected to the
parallel printer port on a standard PC via a standard printer
cable.
OPERATING THE AD5532 EVALUATION BOARD
Power Supplies
The following external supplies must be provided: +5V
between the DVCC and DGND inputs which supplies the
DVCC pins on the AD5532. +5V between the AVCC and the
AGND inputs to supply the AD780, the AD5541, the AD820
and the AVCC pins on the AD5532. -15V to the VSS input
to supply the AD5532 AVSS pins. +15V to the VDD input
to supply the AD5532 AVDD pins.
Each supply is decoupled to the relevant ground plane with
a 47uF and a 0.1uF capacitor pair as it enters the board. Each
device supply pin is again decoupled with a 10uF and a 0.1uF
capacitor pair to the relevant ground plane.
There are 2 ground planes on the board, AGND and DGND.
These are connected together at one location close to the
AD5532. It is recommended not to connect these anywhere
else to avoid ground loop problems.
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel: 617/329-4700
Parallel Interface
14 pin Header
External
Ain
Reference
DAC
3V
Infinite Sample-and-Hold
EVAL-AD5532EB
Fax: 617/326-8703

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EVAL-AD5532EB Summary of contents

Page 1

... AD5532 recommended not to connect these anywhere else to avoid ground loop problems. FUNCTIONAL BLOCK DIAGRAM Power Supply Inputs Reference V0 AD5532/33 32-Channel External DAC/SHA Ain Ain V31 Parallel Interface 14 pin Header One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A. Tel: 617/329-4700 Infinite Sample-and-Hold EVAL-AD5532EB 3V DAC Fax: 617/326-8703 ...

Page 2

... EVAL-AD5532EB LINK AND SWITCH OPTIONS There are 2 link options and 3 switches which must be set for the required operating setup before using the evaluation board. The functions of these link options and switches are outlined below. Link No. Function. LK1 This link option allows the user to select whether the AD5532 serial or parallel interface will be used. ...

Page 3

... Connects to the A2 pin on the AD5532. Connects to the A1 pin on the AD5532. Connects to the A0 pin on the AD5532. Connects to the pin on the AD5532. Connects to the pin on the AD5532. Connects to the pin on the AD5532. Connects to the DGND plane on the board. – 3 – EVAL-AD5532EB pin on the AD5532. pin on the AD5532. ...

Page 4

... EVAL-AD5532EB EVALUATION BOARD SOFTWARE Software installation Install the ad5532 software from the floppy disk onto your PC by executing setup.exe. Ensure that the Centronics cable connects the PC to the AD5532 eval board. Run ad5532.exe. The main menu looks as follows: Fig. 1: Main Menu. ...

Page 5

... Save Coefficients. To automatically save all coefficients click on Auto-save Coefficients. Use Load Coef- ficients to reload coefficients from a previous session. Required O/P voltage Enter a value at Required O/P Voltage to program a specific value at V for the selected channel. OUT – 5 – EVAL-AD5532EB = 0.1V and V = 2.98V) of any IN IN ...

Page 6

... EVAL-AD5532EB – 6 – REV. 0 ...

Page 7

... REV. 0 Fig. 7: Eval-AD5532EB Evaluation Board. – 7 – EVAL-AD5532EB ...

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