REV. A
–5–
AD7719
Parameter
AD7719B
Unit
Test Conditions
LOGIC INPUTS
All Inputs Except SCLK and XTAL1
2
VINL, Input Low Voltage
0.8
V max
DVDD = 5 V
0.4
V max
DVDD = 3 V
VINH, Input High Voltage
2.0
V min
DVDD = 3 V or 5 V
SCLK Only (Schmitt-Triggered Input)
2
VT(+)
1.4/2
V min/V max
DVDD = 5 V
VT(–)
0.8/1.4
V min/V max
DVDD = 5 V
VT(+) – VT(–)
0.3/0.85
V min/V max
DVDD = 5 V
VT(+)
0.95/2
V min/V max
DVDD = 3 V
VT(–)
0.4/1.1
V min/V max
DVDD = 3 V
VT(+) – VT(–)
0.3/0.85
V min/V max
DVDD = 3 V
XTAL1 Only
2
VINL, Input Low Voltage
0.8
V max
DVDD = 5 V
VINH, Input High Voltage
3.5
V min
DVDD = 5 V
VINL, Input Low Voltage
0.4
V max
DVDD = 3 V
VINH, Input High Voltage
2.5
V min
DVDD = 3 V
Input Currents
±10
A max
VIN = DVDD
–70
A max
VIN = DGND, Typically –40 A at 5 V
and –20 A at 3 V
Input Capacitance
2
10
pF typ
All Digital Inputs
LOGIC OUTPUTS (Excluding XTAL2)
VOH, Output High Voltage
2
DVDD – 0.6
V min
DVDD = 3 V, ISOURCE = 100 A
VOL, Output Low Voltage
2
0.4
V max
DVDD = 3 V, ISINK = 100 A
VOH, Output High Voltage
2
4V min
DVDD = 5 V, ISOURCE = 200 A
VOL, Output Low Voltage
2
0.4
V max
DVDD = 5 V, ISINK = 1.6 mA
Floating-State Leakage Current
±10
A 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
AVDD and AGND
VINL, Input Low Voltage
2
0.8
V max
AVDD = 5 V
0.4
V max
AVDD = 3 V
VINH, Input High Voltage
2
2.0
V min
AVDD = 3 V or 5 V
Input Currents
±10
A max
VIN = AVDD
–70
A max
VIN = AGND, Typically –40 A at AVDD = 5 V
and –20 A at AVDD = 3 V
Input Capacitance
10
pF typ
All Digital Inputs
VOH, Output High Voltage
2
AVDD – 0.6
V min
AVDD = 3 V, ISOURCE = 100 A
VOL, Output Low Voltage
2
0.4
V max
AVDD = 3 V, ISINK = 100 A
VOH, Output High Voltage
2
4V min
AVDD = 5 V, ISOURCE = 200 A
VOL, Output Low Voltage
2
0.4
V max
AVDD = 5 V, ISINK = 1.6 mA
Floating-State Output Leakage Current
±10
A 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
AVDD – AGND
2.7/3.6
V min/max
AVDD = 3 V nom
4.75/5.25
V min/max
AVDD = 5 V nom
DVDD – DGND
2.7/3.6
V min/max
DVDD = 3 V nom
4.75/5.25
V min
DVDD = 5 V nom
Power Supply Currents
DIDD Current (Normal Mode)
12
0.6
mA max
DVDD = 3 V, 0.5 mA typ
0.75
mA max
DVDD = 5 V, 0.6 mA typ