AD9000 데이터 시트보기 (PDF) - Analog Devices
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AD9000 Datasheet PDF : 8 Pages
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AD9000
ELECTRICAL CHARACTERISTICS (Continued)
Commercial
0؇C to +70؇C
AD9000JD
Military
–55؇C to +125؇C
AD9000SD/SE
Parameter
Temp
Min
AC LINEARITY11
Dynamic Linearity12
+25°C
In-Band Harmonics
(DC to l MHz)
+25°C
(l MHz to 5 MHz)
+25°C
(5 MHz to 8 MHz)
+25°C
Signal-to-Noise Ratio13
+25°C
31
Signal-to-Noise Ratio14
+25°C
40
Two Tone Intermodulation Rejection15 +25°C
Noise Power Ratio (NPR)16
+25°C
DIGITAL OUTPUTS5
Logic “l” Voltage
Logic “0” Voltage
Full
–1.1
Full
POWER SUPPLY17
Positive Supply Current (+5.0 V)
Negative Supply Current (–5.2 V)
Nominal Power Dissipation
Reference Ladder Dissipation
+25°C
Full
+25°C
Full
+25°C
+25°C
NOTES
1 AIN = +VREF.
2 Determined by 3 dB reduction in reconstructed output at 75 MSPS.
3 Under normal operating conditions, the analog input voltages should not
exceed nominal ± 2 V operating range, nor the supply voltages (+VS and –VS),
whichever is smaller.
4 Under normal operating conditions the differential reference voltage may
range from ± 0.5 V to ± 2 V; +VREF ≥ –VREF.
5 Output terminated with 100 Ω resistors to –2.0 V.
6 Measured from the leading edge of ENCODE to data out on Bit 1 (MSB).
7 Measured from the trailing edge of ENCODE to data out on Bit 1 (MSB).
8 For full-scale step input, 6-bit accuracy is attained in specified time.
ABSOLUTE MAXIMUM RATINGS1
Positive Supply Voltage . . . . . . . . . . . . . . . . . . . 0.3 V to +6 V
Negative Supply Voltage . . . . . . . . . . . . . . . . . 6.0 V to +0.3 V
Analog-to-Digital Ground Voltage Differential . . . . . . . . . 0.5
Analog Input Voltages (AIN, +VREF, –VREF)2 . . . . . . . . . . +3 V
Differential Reference Voltage (+VREF to –VREF)3 . . . . . . . 6 V
ENCODE Input Voltage . . . . . . . . . . . . . . . . . . . . – VS to 0 V
HYSTERESIS Control Voltage . . . . . . . . . . . . 0 V to + 3.0 V
Digital Output Current . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Power Dissipation (+25°C Free Air)4 . . . . . . . . . . . . 745 mW
Operating Temperature Range
AD9000JD . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
AD9000SD/SE . . . . . . . . . . . . . . . . . . . . . . –55°C to +125°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . +175°C
Lead Soldering Temperature (10 sec) . . . . . . . . . . . . +300°C
Typ
Max
Min
Typ
Max
Units
0.5
0.5
LSB
44
44
dBc
42
42
dBc
38
38
dBc
33
31
33
dB
42
40
42
dB
46
46
dBc
30
30
dBc
–1.1
–1 .5
V
–1.5
V
60
70
75
68
80
85
675
20
60
70
mA
75
mA
68
80
mA
85
mA
675
mW
20
mW
9 Recovers to 6-bit accuracy in specified time, after 150% full-scale input
overvoltage.
10Measured on Bit 1 (MSB) only.
11Measured at 50 MSPS encode rate.
12Analog input frequency = 15 MHz.
13RMS signal to RMS noise, with 540 kHz analog input signal.
14Peak-to-peak signal to rms noise, with 540 kHz analog input signal.
15 f1 = 9.3 MHz, f2 = 7.6 MHz; Encode = 42 MHz.
16DC to 8.2 MHz noise bandwidth with 3.886 MHz slot.
17Supply voltage should remain stable within ± 5% for normal operation.
Specifications subject to change without notice.
NOTES
1Absolute maximum ratings are limiting values, to be applied individually, and
beyond which serviceability of the circuit may be impaired. Functional oper-
ability under any of these conditions is not necessarily implied. Exposure to
absolute maximum rating conditions for extended periods may affect device
reliability.
2Under normal operating conditions, the analog input voltages should not
exceed nominal +2 V operating range, nor the supply voltages (+VS and –VS),
whichever is smaller.
3Under normal operating conditions the differential reference voltage may range
from ± 0.5 V to ± 2 V; +VREF ≥ –VREF.
4Typical thermal impedances . . .
16-Pin Ceramic
28-Pin LCC
θJA = 67°C/W; θJC = 7°C/W
θJA = 62°C/W; θJC = 14°C/W
REV. A
–3–
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