AD5315ARM Analog Devices Inc, AD5315ARM Datasheet - Page 19
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AD5315ARM
Manufacturer Part Number
AD5315ARM
Description
IC DAC 10BIT 2WIRE I2C 10-MSOP
Manufacturer
Analog Devices Inc
Datasheet
1.AD5305ARMZ.pdf
(24 pages)
Specifications of AD5315ARM
Rohs Status
RoHS non-compliant
Settling Time
6µs
Number Of Bits
10
Data Interface
I²C, Serial
Number Of Converters
4
Voltage Supply Source
Single Supply
Power Dissipation (max)
5mW
Operating Temperature
-40°C ~ 105°C
Mounting Type
Surface Mount
Package / Case
10-MSOP, Micro10™, 10-uMAX, 10-uSOP
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD5315ARM
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
AD5315ARMZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
AD5315ARMZ-REEL7
Manufacturer:
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Quantity:
19 977
When both bits are set to 0, the DAC works normally with its
normal power consumption of 600 μA at 5 V. However, for the
three power-down modes, the supply current falls to 200 nA at
5 V (80 nA at 3 V). Not only does the supply current drop, but
the output stage is also internally switched from the output of
the amplifier to a resistor network of known values. This has an
advantageous because the output impedance of the part is known
while the part is in power-down mode and provides a defined
input condition for whatever is connected to the output of the
DAC amplifier. There are three different options. The output is
connected internally to GND through a 1 kΩ resistor, a 100 kΩ
resistor, or it is left open-circuited (three-state). Resistor
tolerance = ±20%. The output stage is illustrated in Figure 35.
Rev. G | Page 19 of 24
The bias generator, the output amplifiers, the resistor string, and
all other associated linear circuitry are shut down when the
power-down mode is activated. However, the contents of the
DAC registers are unchanged when in power-down. The time to
exit power-down is typically 2.5 μs for V
V
SCL pulse to when the output voltage deviates from its power-
down voltage. See Figure 21 for a plot.
DD
= 3 V. This is the time from the rising edge of the eighth
STRING DAC
RESISTOR
Figure 35. Output Stage During Power-Down
POWER-DOWN
CIRCUITRY
AMPLIFIER
AD5305/AD5315/AD5325
RESISTOR
NETWORK
DD
= 5 V and 5 μs when
V
OUT