AD5336BRU Analog Devices Inc, AD5336BRU Datasheet - Page 9

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AD5336BRU

Manufacturer Part Number
AD5336BRU
Description
D/A Converter (D-A) IC
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD5336BRU

Digital Ic Case Style
TSSOP
No. Of Pins
28
Operating Temperature Range
-40°C To +105°C
Peak Reflow Compatible (260 C)
No
No. Of Bits
10 Bit
Leaded Process Compatible
No
Mounting Type
Surface Mount
Rohs Status
RoHS non-compliant
Settling Time
7µs
Number Of Bits
10
Data Interface
Parallel
Number Of Converters
4
Voltage Supply Source
Single Supply
Power Dissipation (max)
4.5mW
Operating Temperature
-40°C ~ 105°C
Package / Case
28-TSSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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REV. 0
TERMINOLOGY
RELATIVE ACCURACY
For the DAC, Relative Accuracy or Integral Nonlinearity (INL)
is a measure of the maximum deviation, in LSBs, from a straight
line passing through the actual endpoints of the DAC transfer
function. Typical INL versus Code plot can be seen in Figures
5, 6, and 7.
DIFFERENTIAL NONLINEARITY
Differential Nonlinearity (DNL) is the difference between the
measured change and the ideal 1 LSB change between any two
adjacent codes. A specified differential nonlinearity of ± 1 LSB
maximum ensures monotonicity. This DAC is guaranteed mono-
tonic by design. Typical DNL versus Code plot can be seen in
Figures 8, 9, and 10.
OFFSET ERROR
This is a measure of the offset error of the DAC and the output
amplifier. It is expressed as a percentage of the full-scale range.
If the offset voltage is positive, the output voltage will still be
positive at zero input code. This is shown in Figure 3. Because
the DACs operate from a single supply, a negative offset cannot
appear at the output of the buffer amplifier. Instead, there will
be a code close to zero at which the amplifier output saturates
(amplifier footroom). Below this code there will be a deadband
over which the output voltage will not change. This is illustrated
in Figure 4.
GAIN ERROR
This is a measure of the span error of the DAC (including any
error in the gain of the buffer amplifier). It is the deviation in
slope of the actual DAC transfer characteristic from the ideal
expressed as a percentage of the full-scale range. This is illus-
trated in Figure 2.
VOLTAGE
OUTPUT
Figure 2. Gain Error
DAC CODE
ACTUAL
IDEAL
POSITIVE
GAIN ERROR
NEGATIVE
GAIN ERROR
–9–
FOOTROOM
NEGATIVE
AMPLIFIER
POSITIVE
OFFSET
OFFSET
NEGATIVE
VOLTAGE
Figure 4. Negative Offset Error and Gain Error
AD5334/AD5335/AD5336/AD5344
OUTPUT
Figure 3. Positive Offset Error and Gain Error
(~1mV)
OFFSET
VOLTAGE
OUTPUT
DEADBAND CODES
ACTUAL
DAC CODE
DAC CODE
IDEAL
IDEAL
ACTUAL
GAIN ERROR
AND
OFFSET
ERROR
GAIN ERROR
AND
OFFSET
ERROR

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