Datasheet

Parameter A Grade
2
Units Test Conditions/Comments
ACCURACY
Resolution 12 Bits 1 LSB = (V
IOUT2
– V
REF
)/2
12
= 300 µV when
V
IOUT2
= 1.23 V and V
REF
= 0 V
Relative Accuracy ±1 LSB max
Differential Nonlinearity ±0.9 LSB max All Grades Guaranteed Monotonic Over
Temperature
Gain Error
+25°C ±4 LSBs max
T
MIN
to T
MAX
±5 LSBs max
Gain Temperature Coefficient
3
2 ppm FSR/°C typ
5 ppm FSR/°C max
Output Leakage Current See Terminology Section
I
OUT1
@ +25°C 10 nA max
T
MIN
to T
MAX
50 nA max
Input Resistance
@ I
OUT2
Pins 6 kΩ min This Varies with DAC Input Code
DIGITAL INPUTS
V
INH
, Input High Voltage @ V
DD
= +5 V 2.4 V min
V
INH
, Input High Voltage @ V
DD
= +3.3 V 2.1 V min
V
INL
, Input Low Voltage @ V
DD
= +5 V 0.8 V max
V
INL
, Input Low Voltage @ V
DD
= +3.3 V 0.6 V max
I
INH
, Input Current ±1 µA max
C
IN
, Input Capacitance
3
10 pF max
DIGITAL OUTPUT (SDOUT) Load Circuit as in Figure 2.
Output Low Voltage (V
OL
) 0.4 V max V
DD
= +5 V
Output Low Voltage (V
OL
) 0.2 V max V
DD
= +3.3 V
Output High Voltage (V
OH
) 4.0 V min V
DD
= +5 V
Output High Voltage (V
OH
)V
DD
– 0.2 V min V
DD
= +3.3 V
POWER REQUIREMENTS
V
DD
Range 3/5.5 V min/V max
Power Supply Sensitivity
3
∆Gain/∆V
DD
–75 dB typ
I
DD
10 µA max V
INH
= V
DD
– 0.1 V min, V
INL
= 0.1 V max;
SDOUT Open Circuit
I
DD
is typically 2 mA with V
DD
= +5 V,
V
INH
= 2.4 V min, V
INL
= 0.8 V max;
SDOUT Open Circuit
NOTES
1
These specifications apply with the devices biased up at 1.23 V for single supply applications. The model numbering reflects this by means of a "-B" suffix
(for example: AD7564AR-B). Figure 19 is an example of Biased Mode Operation.
2
Temperature ranges is as follows: A Version: –40°C to +85°C.
3
Not production tested. Guaranteed by characterization at initial product release.
Specifications subject to change without notice.
Biased Mode
1
(V
DD
= +3 V to +5.5 V; V
IOUT1
= V
IOUT2
= 1.23 V; AGND = 0 V; V
REF
= 0 V to 2.45 V; T
A
= T
MIN
to
T
MAX
, unless otherwise noted)
–3–
REV.
AD7564
B