AD5331 Analog Devices, AD5331 Datasheet - Page 12

• Manufacturer Part Number: AD5331
• Manufacturer: Analog Devices

Specifications of AD5331

• Resolution (bits): 10bit
• Dac Update Rate: 143kSPS
• Dac Settling Time: 7µs
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Par

AD5330/AD5331/AD5340/AD5341
Offset Error Drift
This is a measure of the change in offset error with changes in
temperature. It is expressed in (ppm of full-scale range)/°C.
Gain Error Drift
This is a measure of the change in gain error with changes in
temperature. It is expressed in (ppm of full-scale range)/°C.
Power-Supply Rejection Ratio (PSRR)
This indicates how the output of the DAC is affected by changes
in the supply voltage. PSRR is the ratio of the change in V
a change in V
in decibels. V
Reference Feedthrough
This is the ratio of the amplitude of the signal at the DAC
output to the reference input when the DAC output is not being
updated (that is, LDAC is high). It is expressed in decibels.
Major-Code Transition Glitch Energy
Major-code transition glitch energy is the energy of the impulse
injected into the analog output when the DAC changes state. It
is normally specified as the area of the glitch in nV/s and is
measured when the digital code is changed by 1 LSB at the
major carry transition (011 … 11 to 100 … 00 or 100 … 00
to 011 … 11).
DD
REF
for full-scale output of the DAC. It is measured
is held at 2 V and V
DD
is varied ±10%.
OUT
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Digital Feedthrough
Digital Feedthrough is a measure of the impulse injected into
the analog output of the DAC from the digital input pins of the
device; it is measured when the DAC is not being written to ( CS
held high). It is specified in nV/s and is measured with a full-
scale change on the digital input pins, that is, from all 0s to all
1s and vice versa.
Multiplying Bandwidth
The amplifiers within the DAC have a finite bandwidth. The
multiplying bandwidth is a measure of this. A sine wave on the
reference (with a full-scale code loaded to the DAC) appears on
the output. The multiplying bandwidth is the frequency at
which the output amplitude falls to 3 dB below the input.
Total Harmonic Distortion (THD)
This is the difference between an ideal sine wave and its atte-
nuated version using the DAC. The sine wave is used as the
reference for the DAC and THD is a measure of the harmonics
present on the DAC output. It is measured in decibels.