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AD565 Datasheet(PDF) 6 Page - Analog Devices

No. de Pieza. AD565
Descripción  High Speed 12-Bit Monolithic D/A Converters
Descarga  11 Pages
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Fabricante  AD [Analog Devices]
Página de inicio  http://www.analog.com
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AD565 Datasheet(HTML) 6 Page - Analog Devices

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AD565A/AD566A
REV. D
–6–
ABSOLUTE MAXIMUM RATINGS
VCC to Power Ground . . . . . . . . . . . . . . . . . . . . . 0 V to +18 V
VEE to Power Ground (AD565A) . . . . . . . . . . . . 0 V to –18 V
Voltage on DAC Output (Pin 9) . . . . . . . . . . . . –3 V to +12 V
Digital Inputs (Pins 13 to 24) 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 (AD565A) . . . . . Indefinite Short to Power Ground
Momentary Short to VCC
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . 1000 mW
AD565A ORDERING GUIDE
Max Gain
Linearity
T.C. (ppm
Temperature
Error Max Package
Model
1
of F.S./ C)
Range
@ +25 C
Options
2
AD565AJD
50
0
°C to +70°C
± 1/2 LSB
Ceramic (D-24)
AD565AJR
50
0
°C to +70°C
± 1/2 LSB
SOIC (R-28)
AD565AKD 20
0
°C to +70°C
± 1/4 LSB
Ceramic (D-24)
AD565ASD
30
–55
°C to +125°C ± 1/2 LSB
Ceramic (D-24)
AD565ATD
15
–55
°C to +125°C ± 1/4 LSB
Ceramic (D-24)
NOTES
1For details on grade and package offerings screened in accordance with MIL-
STD-883, refer to the Analog Devices Military Products Databook or current/
883B data sheet.
2D = Ceramic DIP, R = SOIC.
AD566A ORDERING GUIDE
Max Gain
Linearity
T.C. (ppm
Temperature
Error Max Package
Model
1
of F.S./ C)
Range
@ +25 C
Option
2
AD566AJD
10
0
°C to +70°C
± 1/2 LSB
Ceramic (D-24)
AD566AKD 3
0
°C to +70°C
± 1/4 LSB
Ceramic (D-24)
AD566ASD
10
–55
°C to +125°C ± 1/2 LSB
Ceramic (D-24)
AD566ATD
3
–55
°C to +125°C ± 1/4 LSB
Ceramic (D-24)
NOTES
1For details on grade and package offerings screened in accordance with MIL-
STD-883, refer to the Analog Devices Military Products Databook or current/
883B data sheet.
2D = Ceramic DIP.
GROUNDING RULES
The AD565A and AD566A bring out separate reference and
power grounds to allow optimum connections for low noise and
high-speed performance. These grounds should be tied together
at one point, usually the device power ground. The separate
ground returns are provided to minimize current flow in
low-level signal paths. In this way, logic return currents are not
summed into the same return path with analog signals.
CONNECTING THE AD565A FOR BUFFERED VOLTAGE
OUTPUT
The standard current-to-voltage conversion connections using
an operational amplifier are shown here with the preferred
trimming techniques. If a low offset operational amplifier
(AD510L, AD517L, AD741L, AD301AL, AD OP07) is used,
excellent performance can be obtained in many situations with-
out trimming (an op amp with less than 0.5 mV max offset
voltage should be used to keep offset errors below 1/2 LSB). If
a 50
Ω fixed resistor is substituted for the 100 Ω trimmer, uni-
polar zero will typically be within
±1/2 LSB (plus op amp off-
set), and full-scale accuracy will be within 0.1% (0.25% max).
Substituting a 50
Ω resistor for the 100 Ω bipolar offset trimmer
will give a bipolar zero error typically within
±2 LSB (0.05%).
The AD509 is recommended for buffered voltage-output appli-
cations which require a settling time to
±1/2 LSB of one micro-
second. The feedback capacitor is shown with the optimum
value for each application; this capacitor is required to compen-
sate for the 25 picofarad DAC output capacitance.


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