Datasheet

REV. A
Parameter AD7709A, AD7709 BUnit Test Conditions
LOGIC OUTPUTS (Excluding XTAL2)
V
OH
, Output High Voltage
2
V
DD
– 0.6 V min V
DD
= 3 V, I
SOURCE
= 100 mA
V
OL
, Output Low Voltage
2
0.4 V max V
DD
= 3 V, I
SINK
= 100 mA
V
OH
, Output High Voltage
2
4V min V
DD
= 5 V, I
SOURCE
= 200 mA
V
OL
, Output Low Voltage
2
0.4 V max V
DD
= 5 V, I
SINK
= 1.6 mA
Floating-State Leakage Current ± 10 mA max
Floating-State Output Capacitance ± 10 pF typ
Data Output Coding Binary Unipolar Mode
Offset Binary Bipolar Mode
I/O PORT
V
INL
, Input Low Voltage
2
0.8 V max V
DD
= 5 V
0.4 V max V
DD
= 3 V
V
INH
, Input High Voltage
2
2.0 V min V
DD
= 3 V or 5 V
Input Currents ± 2 mA max V
IN
= V
DD
–70 mA max V
IN
= GND, Typically –40 mA @ V
DD
= 5 V
and –20 mA at V
DD
= 3 V; Weak Pull-Ups on
the Logic Inputs
Input Capacitance 10 pF typ All Digital Inputs
V
OH
, Output High Voltage
2
V
DD
– 0.6 V min V
DD
= 3 V, I
SOURCE
= 100 mA
V
OL
, Output Low Voltage
2
0.4 V max V
DD
= 3 V, I
SINK
= 100 mA
V
OH
, Output High Voltage
2
4V min V
DD
= 5 V, I
SOURCE
= 200 mA
V
OL
, Output Low Voltage
2
0.4 V max V
DD
= 5 V, I
SINK
= 1.6 mA
Floating-State Output Leakage Current ± 10 mA max
Floating-State Output Capacitance ± 10 pF typ
START-UP TIME
From Power-On 300 ms typ
From Standby Mode 1 ms typ OSCPD = 0
From Power-Down Mode 300 ms typ OSCPD = 1
POWER REQUIREMENTS
Power Supply Voltage
V
DD
– GND 2.7/3.6 V min/max V
DD
= 3 V nom
4.75/5.25 V min/max V
DD
= 5 V nom
Power Supply Currents
I
DD
Current 1.5 mA max V
DD
= 3 V, 1.25 mA typ
1.75 mA max V
DD
= 5 V, 1.45 mA typ
I
DD
(Low Power Mode) 7 mA max B Grade, V
DD
= 3 V, Standby Mode
7 mA typ A Grade, V
DD
= 3 V, Standby Mode
1.5 mA max B Grade, V
DD
= 3 V, Power-Down Mode
1.5 mA typ A Grade, V
DD
= 3 V, Power-Down Mode
26 mA max B Grade, V
DD
= 5 V, Standby Mode
26 mA typ A Grade, V
DD
= 5 V, Standby Mode
6.5 mA max B Grade, V
DD
= 5 V, Power-Down Mode
6.5 mA typ A Grade, V
DD
= 5 V, Power-Down Mode
I
DD
for One Conversion Second 107
5
mA typ V
DD
= 3 V, Standby Mode
134
5
mA typ V
DD
= 5 V, Standby Mode
NOTES
1
Temperature Range –40∞C to +85∞C.
2
Guaranteed by design and/or characterization data on production release.
3
Full-scale error applies to both positive and negative full scale.
4
Simultaneous 50 Hz and 60 Hz rejection is achieved using 19.79 Hz update rate. Normal mode rejection in this case is 60 dB min.
5
When the part is placed in power-down mode for a single conversion/second, at an update rate of 19.79 Hz, the current consumption is higher compared to when the
part is placed in standby mode as the crystal oscillator takes approximately 100 ms to begin clocking. The device will, therefore, use full current for the conversion
time and the 100 ms period required for the oscillator to begin clocking. However, if the conversion rate is lower, the current consumption will be reduced so that it
is worthwhile to use the power-down rather than the standby mode.
Specifications subject to change without notice.
AD7709
–5–