AD8385ASVZ datasheet(6/24 Pages) AD

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AD8385

Rev. 0 | Page 6 of 24

Parameter

Conditions

Min

Typ

Max

Unit

SERIAL INTERFACE DYNAMIC PERFORMANCE

SEN to SCL Setup Time, t20

SCL, High Level Pulse Width, t21

SCL, Low Level Pulse Width, t22

SDI Setup Time, t24

SDI Hold Time, t25

SCL to SEN Hold Time, t23

VAO1, VAO2 Settling Time, t26

SVFS = 5 V, to 0.5%, CL = 100 pF

VAO1, VAO2 Settling Time, t26

SVFS = 5 V, to 0.5%, CL = 33 µF

1 Outputs VAO1 and VAO2 are designed to drive very high capacitive loads. For proper operation of these outputs, load capacitance must be ≤0.002 µF or ≥0.047 µF.

Load capacitance in the range of 0.002 µF to 0.047 µF causes the output overshoot to exceed 100 mV.

POWER SUPPLIES

@ 25°C, AVCC = 15.5 V, DVCC = 3.3 V, TA MIN = 0°C, TA MAX = 85°C, SVFS = 5 V, SVRL = 4 V, SVRH = 9 V, unless otherwise noted.

Table 5.

AD8385 Power Supplies

Min

Typ

Max

Unit

DVCC, Operating Range

3.3

3.6

DVCC, Quiescent Current

AVCC Operating Range

Total AVCC Quiescent Current

111

OPERATING TEMPERATURE

@ 25°C, AVCC = 15.5 V, DVCC = 3.3 V, TA MIN = 0°C, TA MAX = 85°C, SVFS = 5 V, SVRL = 4 V, SVRH = 9 V, unless otherwise noted.

Table 6.

Parameter

Min

Typ

Max

Unit

Ambient Temperature Range, TA1

°C

Ambient Temperature Range, TA2

°C

1 Operation at high ambient temperature requires a thermally-optimized PCB layout (see the

section), input data update rate not exceeding 85 MHz, black-

to-white transition ≤ 4 V and C

Applications

≤ 150 pF. In systems with limited or no airflow, the maximum ambient operating temperature is limited to 75°C with the overload

protection enabled. For operation above 75°C, see Endnote 2.

2 In addition to the requirements stated in Endnote 1, operation at 85°C ambient temperature requires 200 lfm airflow or the overload protection disabled.

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