參數(shù)資料
型號(hào)： AD7249SQ
廠商： ANALOG DEVICES INC
元件分類： DAC
英文描述： Precision, Quad, SPST Analog Switches
中文描述： DUAL, SERIAL INPUT LOADING, 5 us SETTLING TIME, 12-BIT DAC, CDIP16
封裝： CERDIP-16
文件頁(yè)數(shù)： 2/12頁(yè)
文件大?。?/td> 149K
代理商： AD7249SQ
REV. C
–2–
AD7249–SPECIFICATIONS
(V
DD
= +12 V to +15 V,
1
V
SS
= O V or –12 V to –15 V,
1
AGND = DGND = O V, REFIN =
+5 V, R
L
= 2 k , C
L
= 100 pF to AGND. All specifications T
MIN
to T
MAX
unless otherwise noted.)
Parameter
A Version
2
B Version
2
S Version
2
Unit
Test Conditions/Comments
STATIC PERFORMANCE
Resolution
Relative Accuracy
3
Differential Nonlinearity
3
Unipolar Offset Error
12
±
1
±
0.9
±
5
12
±
1/2
±
0.9
±
5
12
±
1
±
0.9
±
6
Bits
LSB max
LSB max
LSB max
Guaranteed Monotonic
V
SS
= 0 V or –12 V to –15 V
1
; DAC
Latch Contents All 0s
V
SS
= –12 V to –15 V
1
DAC Latch Contents All 0s
Bipolar Zero Error
3
±
6
±
5
±
7
LSB max
Full-Scale Error
3, 4
Full-Scale Temperature Coefficient
±
6
±
5
±
6
±
5
±
7
±
5
LSB max
ppm of FSR/
°
C typ
REFERENCE OUTPUT
REFOUT
Reference Temperature Coefficient
Reference Load Change
(
V
REFOUT
vs. I
L
)
4.95/5.05
±
25
4.95/5.05
±
25
4.95/5.05
±
30
V min/V max
ppm/
°
C typ
–1
–1
–1
mV max
Reference Load Current (I
L
)
Change (0
μ
A–100
μ
A)
REFERENCE INPUT
Reference Input Range, REFIN
Input Current
4.95/5.05
5
4.95/5.05
5
4.95/5.05
5
V min/V max
μ
A max
5 V
±
1%
DIGITAL INPUTS
Input High Voltage, V
INH
Input Low Voltage, V
INL
Input Current
I
IN
Input Capacitance
5
2.4
0.8
2.4
0.8
2.4
0.8
V min
V max
±
1
8
±
1
8
±
1
8
μ
A max
pF max
V
IN
= 0 V to V
DD
ANALOG OUTPUTS
Output Range Resistor,
R
OFSA
& R
OFSB
Output Voltage Ranges
6
Output Voltage Ranges
6
DC Output Impedance
15/30
+5, +10
+5, +10,
±
5
0.5
15/30
+5, +10
+5, +10,
±
5
0.5
15/30
+5, +10
+5, +10,
±
5
0.5
k
min/ max
V
V
typ
Single Supply; V
SS
= 0 V
Dual Supply; V
SS
= –12 V or –15 V
AC CHARACTERISTICS
5
Voltage Output Settling-Time
Settling Time to Within
±
1/2 LSB of Final Value
Typically 3
μ
s
Typically 5
μ
s
1 LSB Change Around
Major Carry
Positive Full-Scale Change
Negative Full-Scale Change
Digital-to-Analog Glitch Impulse
3
10
10
30
10
10
30
10
10
30
μ
s max
μ
s max
nV secs typ
Digital Feedthrough
3
Digital Crosstalk
3
10
10
10
10
10
10
nV secs typ
nV secs typ
POWER REQUIREMENTS
V
DD
Range
+10.8/+16.5
+11.4/+15.75
+11.4/+15.75
V min/V max
For Specified Performance Unless
Otherwise Stated
For Specified Performance Unless
Otherwise Stated
Output Unloaded; Typically 11 mA
Output Unloaded; Typically 3 mA
V
SS
Range (Dual Supplies)
–10.8/–16.5
–11.4/–15.75
–11.4/–15.75
V min/V max
I
DD
I
SS
(Dual Supplies)
15
5
15
5
15
5
mA max
mA max
NOTES
1
Power supply tolerance, A Version:
±
10%; B, S Versions:
±
5%.
2
Temperature ranges are as follows: A, B Versions: –40
°
C to +85
°
C; S Version: –55
°
C to +125
°
C.
3
See Terminology.
4
Measured with respect to REFIN and includes unipolar/bipolar offset error.
5
Guaranteed by design not production tested.
6
0 V to 10 V output range available only with V
DD
≥
14.25 V.
Specifications subject to change without notice.
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