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AD667SD Scheda tecnica(PDF) 2 Page - Analog Devices

Il numero della parte AD667SD
Spiegazioni elettronici  Microprocessor-Compatible 12-Bit D/A Converter
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD667SD Scheda tecnica(HTML) 2 Page - Analog Devices

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TIMING SPECIFICATIONS
(All Models, TA = +25°C, VCC = +12 V or +15 V, VEE = –12 V or –15 V)
Symbol
Parameter
Min
Typ
Max
tDC
Data Valid to End of CS
50
ns
tAC
Address Valid to End of CS
100
_
_
ns
tCP
CS
Pulse Width
100
ns
tDH
Data Hold Time
0
ns
tSETT
Output Voltage Settling Time
2
4
µs
AD667–SPECIFICATIONS (@ T
A = +25 C,
12 V,
15 V power supplies unless otherwise noted)
Model
AD667J
AD667K
Min
Typ
Max
Min
Typ
Max
Units
DIGITAL INPUTS
Resolution
12
12
Bits
Logic Levels (TTL, Compatible, TMIN–TMAX)
1
VIH (Logic “l’’)
+2.0
+5.5
+2.0
+5.5
V
VIL (Logic “0”)
0
+0.8
0
+0.8
V
IIH (VIH = 5.5 V)
3
10
3
10
µA
IIL (VIL = 0.8 V)
1
5
1
5
µA
TRANSFER CHARACTERISTICS
ACCURACY
Linearity Error @ +25
°C
+1/4
1/2
± 1/8
1/4
LSB
TA = TMIN to TMAX
± 1/2
3/4
± 1/4
1/2
LSB
Differential Linearity Error @ +25
°C
± 1/2
3/4
± 1/4
1/2
LSB
TA = TMIN to TMAX
Monotonicity Guaranteed
Monotonicity Guaranteed
LSB
Gain Error
2
± 0.1
0.2
± 0.1
0.2
% FSR
3
Unipolar Offset Error
2
± 1
2
± 1
2
LSB
Bipolar Zero
2
± 0.05
0.1
± 0.05
0.1
% of FSR
DRIFT
Differential Linearity
± 2
± 2
ppm of FSR/
°C
Gain (Full Scale) TA = 25°C to TMIN or TMAX
± 5
± 30
± 5
± 15
ppm of FSR/
°C
Unipolar Offset TA = –25°C to TMIN or TMAX
± 1
± 3
± 3
ppm of FSR/
°C
Bipolar Zero TA = 25°C to TMIN or TMAX
± 5
± 10
± 10
ppm of FSR/
°C
CONVERSION SPEED
Settling Time to
± 0.01% of FSR for
FSR Change (2 k
Ω 500 pF Load)
with 10 k
Ω Feedback
3
4
3
4
µs
with 5 k
Ω Feedback
2
3
2
3
µs
For LSB Change
1
1
µs
Slew Rate
10
10
V/
µs
ANALOG OUTPUT
Ranges
4
± 2.5, ±5, ± 10,
± 2.5, ±5, ±10,
V
+5, +10
+5, +10
Output Current
± 5
± 5mA
Output Impedance (DC)
0.05
0.05
Short Circuit Current
40
40
mA
REFERENCE OUTPUT
9.90
10.00
10.10
9.90
10.00
10.10
V
External Current
0.1
1.0
0.1
1.0
mA
POWER SUPPLY SENSITIVITY
VCC = +11.4 V to +16.5 V dc
5
10
5
10
ppm of FS/%
VEE = –11.4 V to –16.5 V dc
5
10
5
10
ppm of FS/%
POWER SUPPLY REQUIREMENTS
Rated Voltages
± 12, ± 15
± 12, ± 15
V
Range
4
11.4
16.5
11.4
16.5
V
Supply Current
+11.4 V to +16.5 V dc
8
12
8
12
mA
–11.4 V to –16.5 V dc
20
25
20
25
mA
TEMPERATURE RANGE
Specification
0
+70
0
+70
°C
Storage
–65
+125
–65
+125
°C
NOTES
1The digital input specifications are 100% tested at +25
°C, and guaranteed but not tested over the full temperature range.
2Adjustable to zero.
3FSR means “Full-Scale Range” and is 20 V for
±10 V range and 10 V for the ±5 V range.
4A minimum power supply of
±12.5 V is required for a ±10 V full-scale output and ±11.4 V is required for all other voltage ranges.
Specifications subject to change without notice.
Specifications shown in boldface are tested on all production units at final electrical
test. Results from those tests are used to calculate outgoing quality levels. All min and
max specifications are guaranteed, although only those shown in boldface are tested
on all production units.
ABSOLUTE MAXIMUM RATINGS
VCC to Power Ground . . . . . . . . . . . . . . . . . . . . . 0 V to +18 V
VEE to Power Ground . . . . . . . . . . . . . . . . . . . . . 0 V to –18 V
Digital Inputs (Pins 11–15, 17–28)
to Power Ground . . . . . . . . . . . . . . . . . . . . –1.0 V to +7.0 V
Ref In to Reference Ground . . . . . . . . . . . . . . . . . . . . . .
±12 V
Bipolar Offset to Reference Ground . . . . . . . . . . . . . . . .
±12 V
10 V Span R to Reference Ground . . . . . . . . . . . . . . . . .
±12 V
20 V Span R to Reference Ground . . . . . . . . . . . . . . . . .
±24 V
Ref Out, VOUT (Pins 6, 9) . . Indefinite Short to Power Ground
. . . . . . . . . . . . . . . . . . . . . . . . . . . Momentary Short to VCC
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . 1000 mW
REV. A
–2–


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