AD872A Просмотр технического описания (PDF) - Analog Devices
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AD872A Datasheet PDF : 20 Pages
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AD872A–SPECIFICATIONS
DC SPECIFICATIONS (TMIN to TMAX, AVDD = + 5 V, DVDD = +5 V, AVSS = –5 V, fSAMPLE = 10 MHz unless otherwise noted)
Parameter
J Grade1
S Grade1 Units
RESOLUTION
12
12
Bits min
MAX CONVERSION RATE
10
10
MHz min
INPUT REFERRED NOISE
0.26
0.26
LSB rms typ
ACCURACY
Integral Nonlinearity (INL)
Differential Nonlinearity (DNL)
No Missing Codes
Zero Error (@ +25°C)2
Gain Error (@ +25°C)2
± 1.75
± 0.5
12
± 0.75
± 1.25
± 1.75
± 0.5
12
± 0.75
± 1.25
LSB typ
LSB typ
Bits Guaranteed
% FSR max
% FSR max
TEMPERATURE DRIFT
Zero Error
Gain Error3, 4
Gain Error3, 5
POWER SUPPLY REJECTION6
AVDD, DVDD (+5 V ± 0.25 V)
AVSS (–5 V ± 0.25 V)
ANALOG INPUT
Input Range
Input Resistance
Input Capacitance
± 0.15
± 0.80
± 0.25
± 0.125
± 0.125
± 1.0
50
10
± 0.3
± 1.75
± 0.50
± 0.125
± 0.125
± 1.0
50
10
% FSR max
% FSR max
% FSR max
% FSR max
% FSR max
V max
kΩ typ
pF typ
INTERNAL VOLTAGE REFERENCE
Output Voltage
2.5
Output Voltage Tolerance
± 20
Output Current (Available for External Loads)
2.0
(External Load Should Not Change During Conversion)
2.5
V typ
± 40
mV max
2.0
mA typ
REFERENCE INPUT RESISTANCE
5
5
kΩ
POWER SUPPLIES
Supply Voltages
AVDD
AVSS
DVDD
DRVDD7
Supply Current
IAVDD
IAVSS
IDVDD
IDRVDD7
POWER CONSUMPTION
+5
+5
V (± 5% AVDD Operating)
–5
–5
V (± 5% AVSS Operating)
+5
+5
V (± 5% DVDD Operating)
+5
+5
V (± 5% DRVDD Operating)
91
92
mA max (85 mA typ)
147
150
mA max (115 mA typ)
20
21
mA max (7 mA typ)
2
2
mA
1.03
1.03
W typ
1.25
1.3
W max
NOTES
1Temperature ranges are as follows: J Grade: 0°C to +70°C, S Grade: –55°C to +125°C.
2Adjustable to zero with external potentiometers (see Zero and Gain Error Calibration section).
3+25°C to TMIN and +25°C to TMAX.
4Includes internal voltage reference drift.
5Excludes internal voltage reference drift.
6Change in Gain Error as a function of the dc supply voltage (VNOMINAL to VMIN, VNOMINAL to VMAX).
7LCC package only.
Specifications subject to change without notice.
–2–
REV. A
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