EVAL-AD7997_15 Datasheet, PDF (1/12 Pages) Analog Devices – Evaluation Board for the 8-Channel, 10-/12-Bit ADC with I2C-Compatible Interface

Evaluation Board for the 8-Channel,
10-/12-Bit ADC with I²C-Compatible Interface
EVAL-AD7997EBZ/AD7998EBZ
FEATURES
Full-featured evaluation board for the AD7997/AD7998
PC software for control and measurement of the
AD7997/AD7998
USB interface (cable provided)
Various linking options
GENERAL DESCRIPTION
This data sheet describes the evaluation board for testing the
AD7997/AD7998 devices. These devices are 10-/12-bit, low
power, successive approximation analog-to-digital converters
(ADCs) with an I²C-compatible interface. The parts operate
from a single 2.7 V to 5.5 V power supply and features a 2 μs
conver-sion time.
The AD7997/AD7998 contain an 8-channel multiplexer and
track-and-hold amplifier that can handle input frequencies of up
to 11 MHz.
Full details on these devices are provided in the AD7997/
AD7998 data sheet available from Analog Devices, Inc., which
should be consulted in conjunction with this data sheet.
On-board components for the EVAL-AD7997/AD7998 include
two AD5245 digital potentiometers, eight AD8691 operational
amplifiers, one AD780 (a pin programmable 2.5 V or 3 V ultra-
high precision band gap reference), and one TMP37 precision
temperature sensor.
The available link options are described in Table 2 and Table 3.
TMP37
FUNCTIONAL BLOCK DIAGRAM
AN3
AN0
AN1
AN2
AN4
AN5
AN6
AN7
POT2
POT1
POT2
POT1
POT1
POT2
POT1
POT2
J1
USB
AD780
CYPRESS
USB
SDA
SCL
V_IN4
REF_IN
V_IN1
V_IN2
V_IN3
V_IN5
V_IN6
AD7997/AD7998
SDA
SCL
V_IN7
V_IN8
J3 J2
EVAL-AD7997EBZ/AD7998EBZ
Figure 1.
Rev. 0
Evaluation boards are only intended for device evaluation and not for production purposes.
Evaluation boards are supplied “as is” and without warranties of any kind, express, implied, or
statutory including, but not limited to, any implied warranty of merchantability or fitness for a
particular purpose. No license is granted by implication or otherwise under any patents or other
intellectual property by application or use of evaluation boards. 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 that may result
from its use. Analog Devices reserves the right to change devices or specifications at any time
without notice. Trademarks and registered trademarks are the property of their respective owners.
Evaluation boards are not authorized to be used in life support devices or systems.
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