(Hong Kong)
Product Summary
The AD7858LARSZ is a high-speed, low-power, 12-bit ADC that operates from a single 3 V or 5 V power supply, the AD7858LARSZ for low power. The ADC powers up with a set of default conditions at which time it can be operated as a read-only ADC. The ADC contains self-calibration and system calibration options to ensure accurate operation over time and temperature and have a number of power-down options for low-power applications. The part powers up with a set of default conditions and can operate as a read-only ADC. The applications of the AD7858LARSZ include Battery-Powered Systems (Personal Digital Assistants, Medical Instruments, Mobile Communications), Pen Computers, Instrumentation and Control Systems, High-Speed Modems.
Parametrics
AD7858LARSZ absolute maximum ratings: (1)AVDD to AGND: -0.3 V to +7 V; (2)DVDD to DGND: -0.3 V to +7 V; (3)AVDD to DVDD: -0.3 V to +0.3 V; (4)Analog Input Voltage to AGND: -0.3 V to AVDD + 0.3 V; (5)Digital Input Voltage to DGND: -0.3 V to DVDD + 0.3 V; (6)Digital Output Voltage to DGND: -0.3 V to DVDD + 0.3 V; (7)REFIN/REFOUT to AGND: -0.3 V to AVDD + 0.3 V; (8)Input Current to Any Pin Except Supplies2: ±10 mA; (9)Operating Temperature Range, Commercial (A, B Versions): -40℃ to +85℃; (10)Storage Temperature Range: -65℃ to +150℃; (11)Junction Temperature: +150℃; (12)Plastic DIP Package, Power Dissipation: 450 mW; (13)θJA Thermal Impedance: 105℃/W; (14)θJC Thermal Impedance: 34.7℃/W; (15)Lead Temperature, (Soldering, 10 sec): +260℃.
Features
AD7858LARSZ features: (1)Specified for VDD of 3 V to 5.5 V; (2)AD7858—200 kSPS; AD7858L—100 kSPS; (3)System and Self-Calibration with Autocalibration on Power-Up; (4)Eight Single-Ended or Four Pseudo-Differential Inputs; (5)Low Power, AD7858: 12 mW (VDD = 3 V); AD7858L: 4.5 mW (VDD = 3 V); (6)Automatic Power-Down After Conversion (25 W); (7)Flexible Serial Interface: 8051/SPI/QSPI/μP Compatible; (8)24-Lead DIP, SOIC, and SSOP Packages.
Diagrams
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 AD7858LARSZ |
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IC ADC 12BIT 8CHAN SRL 24SSOP |
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AD7858LARSZ-REEL |
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IC ADC 12BIT 8CHAN SRL 24SSOP |
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