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AD7841BSZ Scheda tecnica(PDF) 2 Page - Analog Devices

Il numero della parte AD7841BSZ
Spiegazioni elettronici  Octal 14-Bit, Parallel Input, Voltage-Output DAC
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

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–2–
AD7841–SPECIFICATIONS
(VCC = 5 V
5%; VDD = 15 V
10%; VSS = –15 V
10%; GND = DUTGND =
0 V; RL = 5 k
and CL = 50 pF to GND, TA
1 = T
MIN to TMAX, unless otherwise noted)
Parameter
A
B
Unit
Test Conditions/Comments
ACCURACY
Resolution
14
14
Bits
Relative Accuracy
± 4
± 2
LSB max
Differential Nonlinearity
–0.9/2
± 1
LSB max
Guaranteed Monotonic Over Temperature for All
Grades
Zero-Scale Error
± 8
± 8
LSB max
VREF(+) = +5 V, VREF(–) = –5 V. Typically within
±2 LSB
Full-Scale Error
± 8
± 8
LSB max
VREF(+) = +5 V, VREF(–) = –5 V. Typically within
±2 LSB
Gain Error
± 2
± 2
LSB typ
VREF(+) = +5 V, VREF(–) = –5 V
Gain Temperature Coefficient
2
0.5
0.5
ppm FSR/
°C typ
10
10
ppm FSR/
°C max
DC Crosstalk
2
120
120
µV max
See Terminology. Typically 75
µV
REFERENCE INPUTS
2
DC Input Impedance
100
100
M
Ω typ
Input Current
± 1
± 1
µA max
Per Input. Typically
±0.03 µA
VREF(+) Range
0/5
0/5
V min/max
VREF(–) Range
–5/0
–5/0
V min/max
[VREF(+) – VREF(–)]
2/10
2/10
V min/max
For Specified Performance. Can Go as Low as 0 V,
but Performance Not Guaranteed
DUTGND INPUTS
2
DC Input Impedance
60
60
k
Ω typ
Max Input Current
±0.3
±0.3
mA typ
Per Input
Input Range
3
–2/+2
–2/+2
V min/max
OUTPUT CHARACTERISTICS
2
Output Voltage Swing
VSS + 2.5 V to
VSS + 2.5 V to
V typ
VOUT = 2
× (V
REF(–) + [VREF(+) – VREF(–)]
× D)
VDD – 2.5 V
VDD – 2.5 V
– VDUTGND
Short Circuit Current
15
15
mA max
Resistive Load
5
5
k
Ω min
To 0 V
Capacitive Load
50
50
pF max
To 0 V
DC Output Impedance
0.5
0.5
Ω max
DIGITAL INPUTS
2
VINH, Input High Voltage
2.4
2.4
V min
VINL, Input Low Voltage
0.8
0.8
V max
IINH, Input Current
Total for All Pins
@ 25
°C
± 1
± 1
µA max
TMIN to TMAX
±10
±10
µA max
CIN, Input Capacitance
10
10
pF max
POWER REQUIREMENTS
4
VCC
4.75/+5.25
4.75/+5.25
V min/max
For Specified Performance
VDD
15 V
± 10%
15 V
± 10%
V min/max
For Specified Performance
VSS
–15 V
± 10%
–15 V
± 10%
V min/max
For Specified Performance
Power Supply Sensitivity
2
∆Full Scale/∆V
DD
90
90
dB typ
∆Full Scale/∆V
SS
90
90
dB typ
ICC
0.5
0.5
mA max
VINH = VCC, VINL = GND. Dynamic Current
IDD
10
10
mA max
Outputs Unloaded. Typically 8 mA
ISS
10
10
mA max
Outputs Unloaded. Typically 8 mA
NOTES
1Temperature range for A and B Versions: –40
°C to +85°C.
2Guaranteed by characterization. Not production tested.
3
See DUTGND Voltage Range section.
4The AD7841 is functional with power supplies of
±12 V ±10% with reduced output range. Output amplifier requires 2.5 V of head room at the bottom and top ends
of the transfer for function. At 12 V supplies it is recommended to restrict the reference range to
± 4 V.
Specifications subject to change without notice.
REV. B


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