Файл:AD1845.pdf

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AD1845 POWER SUPPLY

Min

Max 5.25 130 45 85

4.75

Units V mA mA mA

650 2

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 Signal @ 1 kHz)* (At Both Analog and Digital Supply Pins, both ADCs and DACs)

Typ

mW mA mA mA mA mA mA mA mA

2 30 36 70 52 80 85 40

dB

CLOCK SPECIFICATIONS*

Min

Units

10

Input Clock Frequency Recommended Clock Duty Cycle Power Up Initialization Time

Max 33 90 515

MHz % ms

  • Guaranteed, not tested. Specifications subject to change without notice.

ORDERING GUIDE

ABSOLUTE MAXIMUM RATINGS*

Model

Temperature Range

Package Description

Package Option

AD1845JP jAD1845JP-REEL* AD1845JST

0°C to +70°C 0°C to +70°C 0°C to +70°C

68-Lead PLCC 68-Lead PLCC 100-Lead TQFP

P-68A P-68A ST-100

  • 13" 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)

Min Power Supplies Digital (VDD) Analog (VCC) Input Current (Except Supply Pins) Analog Input Voltage (Signal Pins) Digital Input Voltage (Signal Pins) Ambient Temperature (Operating) Storage Temperature

Max

Units

–0.3 –0.3

6.0 6.0

V V

–0.3 –0.3 0 –65

± 10.0 VCC +0.3 VDD +0.3 +70 +150

mA V V °C °C

  • Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and 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.

Package

θJA

θJC

θCA

PLCC TQFP

38°C/W 101°C/W

8°C/W 8°C/W

30°C/W 93°C/W

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. B

–5–

WARNING! ESD SENSITIVE DEVICE


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