Datasheet

REV. A
–5–
AD7719
Parameter AD7719B Unit Test Conditions
LOGIC INPUTS
All Inputs Except SCLK and XTAL1
2
V
INL
, Input Low Voltage 0.8 V max DV
DD
= 5 V
0.4 V max DV
DD
= 3 V
V
INH
, Input High Voltage 2.0 V min DV
DD
= 3 V or 5 V
SCLK Only (Schmitt-Triggered Input)
2
V
T(+)
1.4/2 V min/V max DV
DD
= 5 V
V
T(–)
0.8/1.4 V min/V max DV
DD
= 5 V
V
T(+)
– V
T(–)
0.3/0.85 V min/V max DV
DD
= 5 V
V
T(+)
0.95/2 V min/V max DV
DD
= 3 V
V
T(–)
0.4/1.1 V min/V max DV
DD
= 3 V
V
T(+)
– V
T(–)
0.3/0.85 V min/V max DV
DD
= 3 V
XTAL1 Only
2
V
INL
, Input Low Voltage 0.8 V max DV
DD
= 5 V
V
INH
, Input High Voltage 3.5 V min DV
DD
= 5 V
V
INL
, Input Low Voltage 0.4 V max DV
DD
= 3 V
V
INH
, Input High Voltage 2.5 V min DV
DD
= 3 V
Input Currents ±10 µA max V
IN
= DV
DD
–70 µA max V
IN
= DGND, Typically –40 µA at 5 V
and –20 µA at 3 V
Input Capacitance
2
10 pF typ All Digital Inputs
LOGIC OUTPUTS (Excluding XTAL2)
V
OH
, Output High Voltage
2
DV
DD
– 0.6 V min DV
DD
= 3 V, I
SOURCE
= 100 µA
V
OL
, Output Low Voltage
2
0.4 V max DV
DD
= 3 V, I
SINK
= 100 µA
V
OH
, Output High Voltage
2
4V min DV
DD
= 5 V, I
SOURCE
= 200 µA
V
OL
, Output Low Voltage
2
0.4 V max DV
DD
= 5 V, I
SINK
= 1.6 mA
Floating-State Leakage Current ±10 µA max
Floating-State Output Capacitance ±10 pF typ
Data Output Coding Binary Unipolar Mode
Offset Binary Bipolar Mode
I/O PORT
11
I/O Port Voltages Are with Respect to
AV
DD
and AGND
V
INL
, Input Low Voltage
2
0.8 V max AV
DD
= 5 V
0.4 V max AV
DD
= 3 V
V
INH
, Input High Voltage
2
2.0 V min AV
DD
= 3 V or 5 V
Input Currents ±10 µA max V
IN
= AV
DD
–70 µA max V
IN
= AGND, Typically –40 µA at AV
DD
= 5 V
and –20 µA at AV
DD
= 3 V
Input Capacitance 10 pF typ All Digital Inputs
V
OH
, Output High Voltage
2
AV
DD
– 0.6 V min AV
DD
= 3 V, I
SOURCE
= 100 µA
V
OL
, Output Low Voltage
2
0.4 V max AV
DD
= 3 V, I
SINK
= 100 µA
V
OH
, Output High Voltage
2
4V min AV
DD
= 5 V, I
SOURCE
= 200 µA
V
OL
, Output Low Voltage
2
0.4 V max AV
DD
= 5 V, I
SINK
= 1.6 mA
Floating-State Output Leakage Current ±10 µA max
Floating-State Output Capacitance ±10 pF typ
START-UP TIME
From Power-On 300 ms typ
From Idle Mode 1 ms typ
From Power-Down Mode 1 ms typ Osc. Active in Power-Down
300 ms typ Osc. Powered Down
POWER REQUIREMENTS
Power Supply Voltages
AV
DD
– AGND 2.7/3.6 V min/max AV
DD
= 3 V nom
4.75/5.25 V min/max AV
DD
= 5 V nom
DV
DD
– DGND 2.7/3.6 V min/max DV
DD
= 3 V nom
4.75/5.25 V min DV
DD
= 5 V nom
Power Supply Currents
DI
DD
Current (Normal Mode)
12
0.6 mA max DV
DD
= 3 V, 0.5 mA typ
0.75 mA max DV
DD
= 5 V, 0.6 mA typ