Datasheet AD7829-1 (Analog Devices) - 4
| Fabricante | Analog Devices |
| Descripción | 3 V/5 V, 2 MSPS, 8-Bit, 8-Channel ADC |
| Páginas / Página | 21 / 4 — AD7829-1. SPECIFICATIONS. Table 1. Parameter. Version B. Unit. Test … |
| Formato / tamaño de archivo | PDF / 364 Kb |
| Idioma del documento | Inglés |
AD7829-1. SPECIFICATIONS. Table 1. Parameter. Version B. Unit. Test Conditions/Comments
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AD7829-1 SPECIFICATIONS
VDD = 3 V ± 10%, VDD = 5 V ± 10%, GND = 0 V, VREF IN/OUT = 2.5 V. All specifications −40°C to +85°C, unless otherwise noted.
Table 1. Parameter Version B Unit Test Conditions/Comments
DYNAMIC PERFORMANCE fIN = 30 kHz, fSAMPLE = 2 MHz Signal to (Noise + Distortion) Ratio1 48 dB min Total Harmonic Distortion1 −55 dB max Peak Harmonic or Spurious Noise1 −55 dB max Intermodulation Distortion1 fa = 27.3 kHz, fb = 28.3 kHz 2nd Order Terms −65 dB typ 3rd Order Terms −65 dB typ Channel-to-Channel Isolation1 −70 dB typ fIN = 20 kHz DC ACCURACY Resolution 8 Bits Minimum Resolution for Which 8 Bits No Missing Codes Are Guaranteed Integral Nonlinearity (INL)1 ±0.75 LSB max Differential Nonlinearity (DNL)1 ±0.75 LSB max Gain Error1 ±2 LSB max Gain Error Match1 ±0.1 LSB typ Offset Error1 ±1 LSB max Offset Error Match1 ±0.1 LSB typ ANALOG INPUTS2 See Analog Input section VDD = 5 V ± 10% Input voltage span = 2.5 V VIN1 to VIN8 Input Voltage VDD V max 0 V min VMID Input Voltage VDD − 1.25 V max Default VMID = 1.25 V 1.25 V min VDD = 3 V ± 10% Input voltage span = 2 V VIN1 to VIN8 Input Voltage VDD V max 0 V min VMID Input Voltage VDD − 1 V max Default VMID = 1 V 1 V min VIN Input Leakage Current ±1 μA max VIN Input Capacitance 15 pF max VMID Input Impedance 6 kΩ typ REFERENCE INPUT VREF IN/OUT Input Voltage Range 2.55 V max 2.5 V + 2% 2.45 V min 2.5 V − 2% Input Current 1 μA typ 100 μA max ON-CHIP REFERENCE Nominal 2.5 V Reference Error ±50 mV max Temperature Coefficient 50 ppm/°C typ LOGIC INPUTS Input High Voltage, VINH 2.4 V min VDD = 5 V ± 10% Input Low Voltage, VINL 0.8 V max VDD = 5 V ± 10% Input High Voltage, VINH 2 V min VDD = 3 V ± 10% Input Low Voltage, VINL 0.4 V max VDD = 3 V ± 10% Input Current, IIN ±1 μA max Typically 10 nA, VIN = 0 V to VDD Input Capacitance, CIN 10 pF max Rev. 0 | Page 3 of 20 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING CHARACTERISTICS TIMING DIAGRAM ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY CIRCUIT INFORMATION CIRCUIT DESCRIPTION TYPICAL CONNECTION DIAGRAM ADC TRANSFER FUNCTION ANALOG INPUT POWER-UP TIMES POWER VS. THROUGHPUT OPERATING MODES PARALLEL INTERFACE MICROPROCESSOR INTERFACING AD7829-1 TO 8051 AD7829-1 TO PIC16C6x/PIC16C7x AD7829-1 TO ADSP-21xx INTERFACING MULTIPLEXER ADDRESS INPUTS OUTLINE DIMENSIONS ORDERING GUIDE
AD7829-1 SPECIFICATIONS
VDD = 3 V ± 10%, VDD = 5 V ± 10%, GND = 0 V, VREF IN/OUT = 2.5 V. All specifications −40°C to +85°C, unless otherwise noted.
Table 1. Parameter Version B Unit Test Conditions/Comments
DYNAMIC PERFORMANCE fIN = 30 kHz, fSAMPLE = 2 MHz Signal to (Noise + Distortion) Ratio1 48 dB min Total Harmonic Distortion1 −55 dB max Peak Harmonic or Spurious Noise1 −55 dB max Intermodulation Distortion1 fa = 27.3 kHz, fb = 28.3 kHz 2nd Order Terms −65 dB typ 3rd Order Terms −65 dB typ Channel-to-Channel Isolation1 −70 dB typ fIN = 20 kHz DC ACCURACY Resolution 8 Bits Minimum Resolution for Which 8 Bits No Missing Codes Are Guaranteed Integral Nonlinearity (INL)1 ±0.75 LSB max Differential Nonlinearity (DNL)1 ±0.75 LSB max Gain Error1 ±2 LSB max Gain Error Match1 ±0.1 LSB typ Offset Error1 ±1 LSB max Offset Error Match1 ±0.1 LSB typ ANALOG INPUTS2 See Analog Input section VDD = 5 V ± 10% Input voltage span = 2.5 V VIN1 to VIN8 Input Voltage VDD V max 0 V min VMID Input Voltage VDD − 1.25 V max Default VMID = 1.25 V 1.25 V min VDD = 3 V ± 10% Input voltage span = 2 V VIN1 to VIN8 Input Voltage VDD V max 0 V min VMID Input Voltage VDD − 1 V max Default VMID = 1 V 1 V min VIN Input Leakage Current ±1 μA max VIN Input Capacitance 15 pF max VMID Input Impedance 6 kΩ typ REFERENCE INPUT VREF IN/OUT Input Voltage Range 2.55 V max 2.5 V + 2% 2.45 V min 2.5 V − 2% Input Current 1 μA typ 100 μA max ON-CHIP REFERENCE Nominal 2.5 V Reference Error ±50 mV max Temperature Coefficient 50 ppm/°C typ LOGIC INPUTS Input High Voltage, VINH 2.4 V min VDD = 5 V ± 10% Input Low Voltage, VINL 0.8 V max VDD = 5 V ± 10% Input High Voltage, VINH 2 V min VDD = 3 V ± 10% Input Low Voltage, VINL 0.4 V max VDD = 3 V ± 10% Input Current, IIN ±1 μA max Typically 10 nA, VIN = 0 V to VDD Input Capacitance, CIN 10 pF max Rev. 0 | Page 3 of 20 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING CHARACTERISTICS TIMING DIAGRAM ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY CIRCUIT INFORMATION CIRCUIT DESCRIPTION TYPICAL CONNECTION DIAGRAM ADC TRANSFER FUNCTION ANALOG INPUT POWER-UP TIMES POWER VS. THROUGHPUT OPERATING MODES PARALLEL INTERFACE MICROPROCESSOR INTERFACING AD7829-1 TO 8051 AD7829-1 TO PIC16C6x/PIC16C7x AD7829-1 TO ADSP-21xx INTERFACING MULTIPLEXER ADDRESS INPUTS OUTLINE DIMENSIONS ORDERING GUIDE