AD5735 Analog Devices, AD5735 Datasheet - Page 26

• Manufacturer Part Number: AD5735
• Description: Quad Channel, 12-Bit, Serial Input, 4-20 mA & Voltage Output DAC with Dynamic Power Control
• Manufacturer: Analog Devices

Specifications of AD5735

• Resolution (bits): 12bit
• Dac Settling Time: 11µs
• Max Pos Supply (v): +33V
• Single-supply: No
• Dac Type: I or V Out
• Dac Input Format: SPI

AD5735
TERMINOLOGY
Relative Accuracy or Integral Nonlinearity (INL)
Relative accuracy, or integral nonlinearity (INL), is a measure
of the maximum deviation from the best fit line through the
DAC transfer function. INL is expressed in percent of full-scale
range (% FSR). Typical INL vs. code plots are shown in Figure 8
and Figure 31.
Differential Nonlinearity (DNL)
Differential nonlinearity (DNL) is the difference between the
measured change and the ideal 1 LSB change between any two
adjacent codes. A specified DNL of ±1 LSB maximum ensures
monotonicity. The
Typical DNL vs. code plots are shown in Figure 9 and Figure 32.
Monotonicity
A DAC is monotonic if the output either increases or remains
constant for increasing digital input code. The
monotonic over its full operating temperature range.
Negative Full-Scale Error or Zero-Scale Error
Negative full-scale error is the error in the DAC output voltage
when 0x0000 (straight binary coding) is loaded to the DAC
register.
Zero-Scale Temperature Coefficient (TC)
Zero-scale TC is a measure of the change in zero-scale error
with a change in temperature. Zero-scale TC is expressed in
ppm FSR/°C.
Bipolar Zero Error
Bipolar zero error is the deviation of the analog output from the
ideal half-scale output of 0 V when the DAC register is loaded
with 0x8000 (straight binary coding).
Bipolar Zero Temperature Coefficient (TC)
Bipolar zero TC is a measure of the change in the bipolar zero
error with a change in temperature. It is expressed in ppm
FSR/°C.
Offset Error
In voltage output mode, offset error is the deviation of the
analog output from the ideal quarter-scale output when the
DAC is configured for a bipolar output range and the DAC
register is loaded with 0x4000 (straight binary coding).
In current output mode, offset error is the deviation of the
analog output from the ideal zero-scale output when all DAC
registers are loaded with 0x0000.
Offset Error Drift or Offset TC
Offset error drift, or offset TC, is a measure of the change in
offset error with changes in temperature and is expressed in
ppm FSR/°C.
Gain Error
Gain error is a measure of the span error of the DAC. It is the
deviation in slope of the DAC transfer function from the ideal,
expressed in % FSR.
AD5735
is guaranteed monotonic by design.
AD5735
is
Rev. A | Page 26 of 48
Gain Temperature Coefficient (TC)
Gain TC is a measure of the change in gain error with changes
in temperature and is expressed in ppm FSR/°C.
Full-Scale Error
Full-scale error is a measure of the output error when full-scale
code is loaded to the DAC register. Ideally, the output should be
full-scale − 1 LSB. Full-scale error is expressed in % FSR.
Full-Scale Temperature Coefficient (TC)
Full-scale TC is a measure of the change in full-scale error with
changes in temperature and is expressed in ppm FSR/°C.
Total Unadjusted Error (TUE)
Total unadjusted error (TUE) is a measure of the output error
that includes all the error measurements: INL error, offset error,
gain error, temperature, and time. TUE is expressed in % FSR.
DC Crosstalk
DC crosstalk is the dc change in the output level of one DAC in
response to a change in the output of another DAC. It is measured
with a full-scale output change on one DAC while monitoring
another DAC, which is at midscale.
Current Loop Compliance Voltage
The current loop compliance voltage is the maximum voltage
at the I
programmed value.
Voltage Reference Thermal Hysteresis
Voltage reference thermal hysteresis is the difference in output
voltage measured at +25°C compared to the output voltage
measured at +25°C after cycling the temperature from +25°C to
−40°C to +105°C and back to +25°C. The hysteresis is specified
for the first and second temperature cycles and is expressed in ppm.
Output Voltage Settling Time
Output voltage settling time is the amount of time it takes
for the output to settle to a specified level for a full-scale input
change. Plots of settling time are shown in Figure 23, Figure 48,
and Figure 49.
Slew Rate
The slew rate of a device is a limitation in the rate of change of
the output voltage. The output slewing speed of a voltage output
DAC is usually limited by the slew rate of the amplifier used at
its output. Slew rate is measured from 10% to 90% of the output
signal and is given in V/μs.
Power-On Glitch Energy
Power-on glitch energy is the impulse injected into the analog
output when the
area of the glitch in nV-sec (see Figure 28 and Figure 45).
OUT_x
pin for which the output current is equal to the
AD5735
is powered on. It is specified as the
Data Sheet