AD1845 データシートの表示（PDF） - Analog Devices
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AD1845 Datasheet PDF : 40 Pages
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POWER SUPPLY
Power Supply Range–Digital and Analog
Power Supply Current
Analog Supply Current
Digital Supply Current
Power Dissipation
(Current × Nominal Supplies)
Power-Down Supply Current
Reset Supply Current
Total Power-Down Supply Current
Standby Supply Current
Mixer Power-Down Supply Current
Mixer Only Supply Current
ADC Power-Down Supply Current
DAC Power-Down Supply Current
Power Supply Rejection (100 mV p-p Signal @ 1 kHz)*
(At Both Analog and Digital Supply Pins, both ADCs and DACs)
AD1845
Min Typ
4.75
2
36
52
40
Max
Units
5.25
V
130
mA
45
mA
85
mA
650
mW
2
mA
mA
30
mA
mA
70
mA
mA
80
mA
85
mA
dB
CLOCK SPECIFICATIONS*
Input Clock Frequency
Recommended Clock Duty Cycle
Power Up Initialization Time
*Guaranteed, not tested.
Specifications subject to change without notice.
ORDERING GUIDE
Model
Temperature
Range
Package
Description
Package
Option1
AD1845JP
AD1845JP-REEL2
AD1845JST
0°C to +70°C
0°C to +70°C
0°C to +70°C
68-Lead PLCC P-68A
68-Lead PLCC P-68A
100-Lead TQFP ST-100
NOTES
1P = Plastic Leaded Chip Carrier; ST = Thin Quad Flatpack.
213" Reel, multiples of 250 pcs.
ENVIRONMENTAL CONDITIONS
Ambient Temperature Rating:
TAMB = TCASE – (PD × θCA)
TCASE = Case Temperature in °C
PD = Power Dissipation in W
θCA = Thermal Resistance (Case-to-Ambient)
θJA = Thermal Resistance (Junction-to-Ambient)
θJC = Thermal Resistance (Junction-to-Case)
Package
PLCC
TQFP
JA
38°C/W
44°C/W
JC
8°C/W
8°C/W
CA
30°C/W
93°C/W
Min
Max
Units
33
MHz
10
90
%
512
ms
ABSOLUTE MAXIMUM RATINGS*
Min Max
Units
Power Supplies
Digital (VDD)
Analog (VCC)
–0.3 6.0
V
–0.3 6.0
V
Input Current
(Except Supply Pins)
± 10.0
mA
Analog Input Voltage (Signal Pins) –0.3 VCC +0.3 V
Digital Input Voltage (Signal Pins) –0.3 VDD +0.3 V
Ambient Temperature (Operating) 0
+70
°C
Storage Temperature
–65 +150
°C
*Stresses greater than those listed under Absolute Maximum Ratings may cause
permanent damage to the device. This is a stress rating only; functional operation
of the device at these or any other conditions above those indicated in the
operational section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD1845 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
REV. C
–5–
WARNING!
ESD SENSITIVE DEVICE
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