AD5753 datasheet(30/72 Pages) AD

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AD5753

Data Sheet

Rev. 0 | Page 30 of 72

Line Regulation

Line regulation is the change in reference output voltage due to

a specified change in power supply voltage. It is expressed in

ppm/V.

Load Regulation

Load regulation is the change in reference output voltage due to

a specified change in reference load current. It is expressed in

ppm/mA.

Dynamic Power Control (DPC)

In DPC mode, the AD5753 circuitry senses the output voltage

and dynamically regulates the supply voltage, VDPC+, to meet

compliance requirements plus an optimized headroom voltage

for the output buffer.

Programmable Power Control (PPC)

In PPC mode, the VDPC+ voltage is user programmable to a fixed

level that must accommodate the required maximum output load.

Output Voltage Settling Time

Output voltage settling time is the amount of time the output takes

to settle to a specified level for a full-scale input change. This

specification depends on the manner in which the DPC feature

is configured, such as enabled, disabled, or PPC mode enabled,

and on the characteristics of the external dc-to-dc inductor and

capacitor components used.

Slew Rate

The device slew rate 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

the output. Slew rate is measured from 10% to 90% of the

output signal and is expressed in V/µs.

Power-On Glitch Energy

Power-on glitch energy is the impulse injected into the analog

output when the AD5753 is powered on. It is specified as the

area of the glitch in nV-sec.

Digital-to-Analog Glitch Energy

Digital-to-analog glitch energy is the energy of the impulse injected

into the analog output when the input code in the DAC output

glitch in nV-sec. The worst case usually occurs when the digital

input code is changed by 1 LSB at the major carry transition

(0x7FFF to 0x8000).

Glitch Impulse Peak Amplitude

Glitch impulse peak amplitude is the peak amplitude of the

impulse injected into the analog output when the input code in the

DAC output register changes state. It is specified as the amplitude

of the glitch in millivolts and the worst case usually occurs when

the digital input code is changed by 1 LSB at the major carry

transition (0x7FFF to 0x8000).

Digital Feedthrough

Digital feedthrough is a measure of the impulse injected into

the DAC analog output from the DAC digital inputs. However,

the digital feedthrough is measured when the DAC output is

not updated, which occurs when the LDAC pin is held high. The

digital feedthrough is specified in nV-sec and measured with a

full-scale code change on the data bus.

Power Supply Rejection Ratio (PSRR)

PSRR indicates how the output of the DAC is affected by changes

in the power supply voltage.

AD5753 Datasheet(PDF) 30 Page - Analog Devices

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