參數(shù)資料
型號: AD7564
廠商: Analog Devices, Inc.
英文描述: +3.3 V/+5 V, Low Power, Quad 12-Bit DAC(LC2MOS低功耗四通道12位D/A轉(zhuǎn)換器)
中文描述: 3.3伏/ 5伏,低功耗,四路12位DAC(LC2MOS低功耗四通道12位的D / A轉(zhuǎn)換器)
文件頁數(shù): 3/16頁
文件大小: 404K
代理商: AD7564
Parameter
A Grade
2
Units
Test Conditions/Comments
ACCURACY
Resolution
12
Bits
1 LSB = (V
IOUT2
– V
REF
)/2
12
= 300
μ
V when
V
IOUT2
= 1.23 V and V
REF
= 0 V
Relative Accuracy
Differential Nonlinearity
±
1
±
0.9
LSB max
LSB max
All Grades Guaranteed Monotonic Over
Temperature
Gain Error
+25
°
C
T
MIN
to T
MAX
Gain Temperature Coefficient
3
±
4
±
5
2
5
LSBs max
LSBs max
ppm FSR/
°
C typ
ppm FSR/
°
C max
Output Leakage Current
I
OUT1
@ +25
°
C
T
MIN
to T
MAX
Input Resistance
@ I
OUT2
Pins
See Terminology Section
10
50
nA max
nA max
6
k
min
This Varies with DAC Input Code
DIGITAL INPUTS
V
INH
, Input High Voltage @ V
DD
= +5 V
V
INH
, Input High Voltage @ V
DD
= +3.3 V
V
INL
, Input Low Voltage @ V
DD
= +5 V
V
INL
, Input Low Voltage @ V
DD
= +3.3 V
I
INH
, Input Current
C
IN
, Input Capacitance
3
2.4
2.1
0.8
0.6
±
1
10
V min
V min
V max
V max
μ
A max
pF max
DIGITAL OUTPUT (SDOUT)
Output Low Voltage (V
OL
)
Output Low Voltage (V
OL
)
Output High Voltage (V
OH
)
Output High Voltage (V
OH
)
Load Circuit as in Figure 2.
V
DD
= +5 V
V
DD
= +3.3 V
V
DD
= +5 V
V
DD
= +3.3 V
0.4
0.2
4.0
V
DD
– 0.2
V max
V max
V min
V min
POWER REQUIREMENTS
V
DD
Range
Power Supply Sensitivity
3
Gain/
V
DD
I
DD
3/5.5
V min/V max
–75
10
dB typ
μ
A 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. A
AD7564
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