AD9742ARURL7 Analog Devices Inc, AD9742ARURL7 Datasheet - Page 8

• Manufacturer Part Number: AD9742ARURL7
• Description: IC DAC 12BIT 210MSPS 28-TSSOP
• Manufacturer: Analog Devices Inc
• Series: TxDAC®r

Specifications of AD9742ARURL7

• Rohs Status: RoHS non-compliant
• Settling Time: 11ns
• Number Of Bits: 12
• Data Interface: Parallel
• Number Of Converters: 1
• Voltage Supply Source: Analog and Digital
• Power Dissipation (max): 145mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• For Use With: AD9742ACP-PCBZ - BOARD EVAL FOR AD9742ACP

AD9742
TERMINOLOGY
Linearity Error (Also Called Integral Nonlinearity or INL)
Linearity error is defined as the maximum deviation of the ac-
tual analog output from the ideal output, determined by a
straight line drawn from zero to full scale.
Differential Nonlinearity (or DNL)
DNL is the measure of the variation in analog value, normalized
to full scale, associated with a 1 LSB change in digital input
code.
Monotonicity
A DAC is monotonic if the output either increases or remains
constant as the digital input increases.
Offset Error
The deviation of the output current from the ideal of zero is
called the offset error. For IOUTA, 0 mA output is expected
when the inputs are all 0s. For IOUTB, 0 mA output is expected
when all inputs are set to 1s.
Gain Error
The difference between the actual and ideal output span. The
actual span is determined by the output when all inputs are set
to 1s minus the output when all inputs are set to 0s.
Output Compliance Range
The range of allowable voltage at the output of a current output
DAC. Operation beyond the maximum compliance limits may
cause either output stage saturation or breakdown, resulting in
nonlinear performance.
Temperature Drift
Temperature drift is specified as the maximum change from the
ambient (25°C) value to the value at either T
offset and gain drift, the drift is reported in ppm of full-scale
range (FSR) per °C. For reference drift, the drift is reported in
ppm per °C.
DCOM
DVDD
RETIMED
OUTPUT*
CLOCK
PULSE GENERATOR
LECROY 9210
R
2kΩ
SET
50Ω
0.1µF
3.3V
REFIO
FS ADJ
DVDD
DCOM
CLOCK
SLEEP
1.2V REF
OUTPUT
CLOCK
Figure 5. Basic AC Characterization Test Set-Up (SOIC/TSSOP Packages)
REFLO
SEGMENTED SWITCHES
MIN
FOR DB11–DB3
or T
150pF
TEKTRONIX AWG-2021
MAX
WITH OPTION 4
LATCHES
DIGITAL
. For
DATA
CURRENT SOURCE
Rev. B | Page 8 of 32
ARRAY
PMOS
3.3V
SWITCHES
AVDD
LSB
AD9742
Power Supply Rejection
The maximum change in the full-scale output as the supplies
are varied from nominal to minimum and maximum specified
voltages.
Settling Time
The time required for the output to reach and remain within a
specified error band about its final value, measured from the
start of the output transition.
Glitch Impulse
Asymmetrical switching times in a DAC give rise to undesired
output transients that are quantified by a glitch impulse. It is
specified as the net area of the glitch in pV-s.
Spurious-Free Dynamic Range
The difference, in dB, between the rms amplitude of the output
signal and the peak spurious signal over the specified band-
width.
Total Harmonic Distortion (THD)
THD is the ratio of the rms sum of the first six harmonic com-
ponents to the rms value of the measured input signal. It is ex-
pressed as a percentage or in decibels (dB).
Multitone Power Ratio
The spurious-free dynamic range containing multiple carrier
tones of equal amplitude. It is measured as the difference be-
tween the rms amplitude of a carrier tone to the peak spurious
signal in the region of a removed tone.
ACOM
IOUTA
IOUTB
MODE
50Ω
50Ω
*AWG2021 CLOCK RETIMED
SO THAT THE DIGITAL DATA
TRANSITIONS ON FALLING EDGE
OF 50% DUTY CYCLE CLOCK.
MINI-CIRCUITS
T1-1T
ROHDE & SCHWARZ
FSEA30
SPECTRUM
ANALYZER