EVAL-AD1555 Datasheet, PDF (1/9 Pages) Analog Devices – Evaluation Board AD1555/1556 24-Bit ADC

PRELIMINARY TECHNICAL DATA
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Evaluation Board
AD1555/AD1556 24-Bit ⌺-⌬ ADC
Preliminary Technical Data
EVAL-AD1555/56EB
FEATURES :
On-Board Reference, Oscillator, Control Logic and
Buffers
Easy interface to printer port of PC
PC Software for Control and Data Analysis
Stand Alone Capability to ease design
Analog and Digital Prototype Area
GENERAL DESCRIPTION
The EVAL-AD1555/56EB is an evaluation board for the
AD1555 and AD1556 24-bit ⌺-⌬ ADC chip-set. The
AD1555/AD1556 chip-set can convert a high dynamic range
input signal, operates from +5V and -5V supplies and uses a
serial interface.
The AD1555/AD1556 evaluation board is designed to
demonstrate the ADC's performance and operation. A full
description of the AD1555/AD1556 is available in the
AD1555/AD1556 data sheet and should be consulted when
utilizing this evaluation board.
The EVAL-AD1555/56EB is ideal for use either as a stand-
alone evaluation board to interface with a customer applica-
tion or with any compatible PC using the parallel printer port.
On-board components include an AD780 3V ultra low noise
bandgap reference, a crystal oscillator, and digital control
logic. The board has both a Centronics male connector to
interface with PC printer port and a 50-pin connector for
stand-alone operation.
Software is provided to allow simple demonstration and
evaluation of the AD1555/AD1556 chip-set.
FUNCTIONAL BLOCK DIAGRAM
Ain
T in
P G A_ M O D
SJ3
SJ2
+5V - 5V
+5V
Ref
AD1555
PGA
Σ∆ mod
SJ1
+5V
AD1556
oscillator
FPG A
50-Way connector
25-WAY D-Type
connector
REV. PrD
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.
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