AD7835 Analog Devices, AD7835 Datasheet - Page 19
AD7835
Manufacturer Part Number
AD7835
Description
LC2MOS Quad 14-Bit DAC
Manufacturer
Analog Devices
Datasheet
1.AD7835.pdf
(28 pages)
Specifications of AD7835
Resolution (bits)
14bit
Dac Update Rate
100kSPS
Dac Settling Time
10µs
Max Pos Supply (v)
+15.75V
Single-supply
No
Dac Type
Voltage Out
Dac Input Format
Byte,Par
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POWER-ON OF THE AD7834/AD7835
Power is normally applied to the AD7834/AD7835 in the
following sequence: first V
V
power is applied to the part. V
V
V
In some systems, it is necessary to introduce one or more
Schottky diodes between pins to prevent the above situations
arising at power-on. These diodes are shown in Figure 25.
However, in most systems, with careful consideration given to
power supply sequencing, the above rules are adhered to, and
protection diodes are not necessary.
REF
REF
DD
(+) and V
(−) − 0.3 V. V
is not allowed to go below V
REF
(−). The V
REF
(−) is not allowed to go below V
DD
REF
and V
pins are not allowed to float when
REF
(+) is not allowed to go below
CC
− 0.3 V.
SS
, then V
CC
, and then
SS
− 0.3 V.
Rev. D | Page 19 of 28
1
ADDITIONAL PINS OMITTED FOR CLARITY
Figure 25. Power-On Protection
AD7834
V
V
REF
REF
(+)
(–)
1
AD7834/AD7835
SD103C
1N5711
1N5712