Datasheet AD7416, AD7417, AD7418 (Analog Devices) - 4
| Fabricante | Analog Devices |
| Descripción | 10-Bit Digital Temperature Sensor (AD7416) and 4-/1-Channel ADCs |
| Páginas / Página | 23 / 4 — AD7416/AD7417/AD7418. Data Sheet. SPECIFICATIONS AD7417/AD7418 … |
| Revisión | J |
| Formato / tamaño de archivo | PDF / 495 Kb |
| Idioma del documento | Inglés |
AD7416/AD7417/AD7418. Data Sheet. SPECIFICATIONS AD7417/AD7418 SPECIFICATIONS. Table 1. Parameter. A Version. B Version1. Unit
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AD7416/AD7417/AD7418 Data Sheet SPECIFICATIONS AD7417/AD7418 SPECIFICATIONS
VDD = 2.7 V to 5.5 V, GND = 0 V, REFIN = 2.5 V, unless otherwise noted.
Table 1. Parameter A Version B Version1 Unit Test Conditions/Comments
DC ACCURACY Any channel Resolution 10 10 Bits Minimum Resolution for Which No 10 10 Bits Missing Codes Are Guaranteed Relative Accuracy2 ±1 ±1 LSB max This specification is typical for VDD of 3.6 V to 5.5 V Differential Nonlinearity2 ±1 ±1 LSB max This specification is typical for VDD of 3.6 V to 5.5 V Gain Error2 ±3 ±3 LSB max External reference ±10 ±10 LSB max Internal reference Gain Error Match2 ±0.6 ±0.6 LSB max AD7417 only Offset Error2 ±4 ±4 LSB max Offset Error Match2 ±0.7 ±0.7 LSB max AD7417 only ANALOG INPUTS Input Voltage Range VREF VREF V max 0 0 V min Input Leakage Current3 ±1 ±1 μA max Input Capacitance 10 10 pF max TEMPERATURE SENSOR1 Measurement Error Ambient Temperature 25°C ±2 ±1 °C max TMIN to TMAX ±3 ±2 °C max Temperature Resolution 1/4 1/4 °C/LSB CONVERSION RATE Track-and-Hold Acquisition Time4 400 400 ns max Source impedance < 10 Ω Conversion Time Temperature Sensor 30 30 μs max Typically 27 μs Channel 1 to Channel 4 15 15 μs max Typically 10 μs REFERENCE INPUT5,6 REFIN Input Voltage Range 2.625 2.625 V max 2.5 V + 5% 2.375 2.375 V min 2.5 V − 5% Input Impedance 40 40 kΩ min Input Capacitance 10 10 pF max ON-CHIP REFERENCE Nominal 2.5 V Reference Error6 ±25 ±25 mV max Temperature Coefficient6 80 80 ppm/°C typ DIGITAL INPUTS Input High Voltage, VIH VDD × 0.7 VDD × 0.7 V min Input Low Voltage, VIL VDD × 0.3 VDD × 0.3 V max Input Leakage Current 1 1 μA max DIGITAL OUTPUTS Output Low Voltage, VOL 0.4 0.4 V max IOL = 3 mA Output High Current 1 1 μA max VOH = 5 V Rev. J | Page 4 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAMS TABLE OF CONTENTS REVISION HISTORY PRODUCT HIGHLIGHTS SPECIFICATIONS AD7417/AD7418 SPECIFICATIONS AD7416 SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER DETAILS TYPICAL CONNECTION DIAGRAM ANALOG INPUTS ON-CHIP REFERENCE TEMPERATURE MEASUREMENT INTERNAL REGISTER STRUCTURE Address Pointer Register Temperature Value Register (Address 0x00) Configuration Register (Address 0x01) THYST Setpoint Register (Address 0x02) TOTI Setpoint Register (Address 0x03) ADC Value Register (Address 0x04) ADC Transfer Function Config2 Register (Address 0x05) SERIAL BUS INTERFACE Serial Bus Address Writing to the AD7416/AD7417/AD7418 Reading Data From the AD7416/AD7417/AD7418 OTI OUTPUT FAULT QUEUE POWER-ON DEFAULTS OPERATING MODES Mode 1 Mode 2 CONVSTB START MODE CONVSTB Pin Mode APPLICATIONS INFORMATION SUPPLY DECOUPLING POWER-ON RESET MOUNTING THE AD7416/AD7417/AD7418 FAN CONTROLLER THERMOSTAT SYSTEM WITH MULTIPLE AD7416 DEVICES OUTLINE DIMENSIONS ORDERING GUIDE
AD7416/AD7417/AD7418 Data Sheet SPECIFICATIONS AD7417/AD7418 SPECIFICATIONS
VDD = 2.7 V to 5.5 V, GND = 0 V, REFIN = 2.5 V, unless otherwise noted.
Table 1. Parameter A Version B Version1 Unit Test Conditions/Comments
DC ACCURACY Any channel Resolution 10 10 Bits Minimum Resolution for Which No 10 10 Bits Missing Codes Are Guaranteed Relative Accuracy2 ±1 ±1 LSB max This specification is typical for VDD of 3.6 V to 5.5 V Differential Nonlinearity2 ±1 ±1 LSB max This specification is typical for VDD of 3.6 V to 5.5 V Gain Error2 ±3 ±3 LSB max External reference ±10 ±10 LSB max Internal reference Gain Error Match2 ±0.6 ±0.6 LSB max AD7417 only Offset Error2 ±4 ±4 LSB max Offset Error Match2 ±0.7 ±0.7 LSB max AD7417 only ANALOG INPUTS Input Voltage Range VREF VREF V max 0 0 V min Input Leakage Current3 ±1 ±1 μA max Input Capacitance 10 10 pF max TEMPERATURE SENSOR1 Measurement Error Ambient Temperature 25°C ±2 ±1 °C max TMIN to TMAX ±3 ±2 °C max Temperature Resolution 1/4 1/4 °C/LSB CONVERSION RATE Track-and-Hold Acquisition Time4 400 400 ns max Source impedance < 10 Ω Conversion Time Temperature Sensor 30 30 μs max Typically 27 μs Channel 1 to Channel 4 15 15 μs max Typically 10 μs REFERENCE INPUT5,6 REFIN Input Voltage Range 2.625 2.625 V max 2.5 V + 5% 2.375 2.375 V min 2.5 V − 5% Input Impedance 40 40 kΩ min Input Capacitance 10 10 pF max ON-CHIP REFERENCE Nominal 2.5 V Reference Error6 ±25 ±25 mV max Temperature Coefficient6 80 80 ppm/°C typ DIGITAL INPUTS Input High Voltage, VIH VDD × 0.7 VDD × 0.7 V min Input Low Voltage, VIL VDD × 0.3 VDD × 0.3 V max Input Leakage Current 1 1 μA max DIGITAL OUTPUTS Output Low Voltage, VOL 0.4 0.4 V max IOL = 3 mA Output High Current 1 1 μA max VOH = 5 V Rev. J | Page 4 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAMS TABLE OF CONTENTS REVISION HISTORY PRODUCT HIGHLIGHTS SPECIFICATIONS AD7417/AD7418 SPECIFICATIONS AD7416 SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER DETAILS TYPICAL CONNECTION DIAGRAM ANALOG INPUTS ON-CHIP REFERENCE TEMPERATURE MEASUREMENT INTERNAL REGISTER STRUCTURE Address Pointer Register Temperature Value Register (Address 0x00) Configuration Register (Address 0x01) THYST Setpoint Register (Address 0x02) TOTI Setpoint Register (Address 0x03) ADC Value Register (Address 0x04) ADC Transfer Function Config2 Register (Address 0x05) SERIAL BUS INTERFACE Serial Bus Address Writing to the AD7416/AD7417/AD7418 Reading Data From the AD7416/AD7417/AD7418 OTI OUTPUT FAULT QUEUE POWER-ON DEFAULTS OPERATING MODES Mode 1 Mode 2 CONVSTB START MODE CONVSTB Pin Mode APPLICATIONS INFORMATION SUPPLY DECOUPLING POWER-ON RESET MOUNTING THE AD7416/AD7417/AD7418 FAN CONTROLLER THERMOSTAT SYSTEM WITH MULTIPLE AD7416 DEVICES OUTLINE DIMENSIONS ORDERING GUIDE