Datasheet AD7766 (Analog Devices) - 4
| Hersteller | Analog Devices |
| Beschreibung | 24-Bit, 8.5 mW, 109 dB, 128 kSPS/64 kSPS/32 kSPS ADCs |
| Seiten / Seite | 25 / 4 — AD7766. SPECIFICATIONS. Table 2. Parameter Test. Conditions/Comments. … |
| Revision | C |
| Dateiformat / Größe | PDF / 1.6 Mb |
| Dokumentensprache | Englisch |
AD7766. SPECIFICATIONS. Table 2. Parameter Test. Conditions/Comments. Min. Typ. Max. Unit
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AD7766 SPECIFICATIONS
AVDD = DVDD = 2.5 V ± 5%, VDRIVE = 1.8 V to 3.6 V, VREF+ = 5 V, MCLK = 1 MHz, common-mode input = VREF+/2, TA = −40°C to +105°C, unless otherwise noted.
Table 2. Parameter Test Conditions/Comments Min Typ Max Unit
OUTPUT DATA RATE (ODR) AD7766 Decimate by 8 128 kHz AD7766-1 Decimate by 16 64 kHz AD7766-2 Decimate by 32 32 kHz ANALOG INPUT1 Differential Input Voltage VIN+ − VIN− ±VREF+ V p-p Absolute Input Voltage VIN+ −0.1 +VREF+ + 0.1 V VIN− −0.1 +VREF+ + 0.1 V Common-Mode Input Voltage VREF+/2 − 5% VREF+/2 VREF+/2 + 5% V Input Capacitance 22 pF DYNAMIC PERFORMANCE AD7766 Decimate by 8, ODR = 128 kHz Dynamic Range2 Shorted inputs 108 109.5 dB Signal-to-Noise Ratio (SNR)2 Full-scale input amplitude, 1 kHz tone 107 108.5 dB Spurious-Free Dynamic Range (SFDR)2 Full-scale input amplitude, 1 kHz tone −128 −116 dB Total Harmonic Distortion (THD)2 Full-scale input amplitude, 1 kHz tone −112 −103 dB Intermodulation Distortion (IMD)2 Tone A = 49.7 kHz, Tone B = 50.3 kHz Second-Order Terms −133 dB Third-Order Terms −109 dB AD7766-1 Decimate by 16, ODR = 64 kHz Dynamic Range2 Shorted inputs 111 112.5 dB Signal-to-Noise Ratio (SNR)2 Full-scale input amplitude, 1 kHz tone 110 111.5 dB Spurious-Free Dynamic Range (SFDR)2 Full-scale input amplitude, 1 kHz tone −128 −116 dB Total Harmonic Distortion (THD)2 Full-scale input amplitude, 1 kHz tone −112 −103 dB Intermodulation Distortion (IMD)2 Tone A = 24.7 kHz, Tone B = 25.3 kHz dB Second-Order Terms −133 dB Third-Order Terms −108 dB AD7766-2 Decimate by 32, ODR = 32 kHz Dynamic Range2 Shorted inputs 114 115.5 dB Signal-to-Noise Ratio (SNR)2 Full-scale input amplitude, 1 kHz tone 112 113.5 dB Spurious-Free Dynamic Range (SFDR)2 Full-scale input amplitude, 1 kHz tone −128 −116 dB Total Harmonic Distortion (THD)2 Full-scale input amplitude, 1 kHz tone −112 −103 dB Intermodulation Distortion (IMD)2 Tone A = 11.7 kHz, Tone B = 12.3 kHz dB Second-Order Terms −137 dB Third-Order Terms −108 dB DC ACCURACY1 For all devices Resolution No missing codes 24 Bits Differential Nonlinearity2 Guaranteed monotonic to 24 bits Integral Nonlinearity2 16-bit linearity ±6 ±15 ppm Zero Error2 20 μV Gain Error2 0.0075 0.075 % FS Zero Error Drift2 15 nV/°C Gain Error Drift2 0.4 ppm/°C Common-Mode Rejection Ratio2 50 Hz tone −110 dB Rev. C | Page 3 of 24 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION RELATED DEVICES TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS TIMING DIAGRAMS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION AD7766/AD7766-1/AD7766-2 TRANSFER FUNCTION CONVERTER OPERATION ANALOG INPUT STRUCTURE SUPPLY AND REFERENCE VOLTAGES AD7766/AD7766-1/AD77662-2 INTERFACE INITIAL POWER-UP READING DATA POWER-DOWN, RESET, AND SYNCHRONIZATION DAISY CHAINING READING DATA IN DAISY-CHAIN MODE CHOOSING THE SCLK FREQUENCY DAISY-CHAIN MODE CONFIGURATION AND TIMING DIAGRAMS DRIVING THE AD7766/AD7766-1/AD7766-2 DIFFERENTIAL SIGNAL SOURCE SINGLE-ENDED SIGNAL SOURCE ANTIALIASING POWER DISSIPATION VREF+ INPUT SIGNAL MULTIPLEXING ANALOG INPUT CHANNELS OUTLINE DIMENSIONS ORDERING GUIDE
AD7766 SPECIFICATIONS
AVDD = DVDD = 2.5 V ± 5%, VDRIVE = 1.8 V to 3.6 V, VREF+ = 5 V, MCLK = 1 MHz, common-mode input = VREF+/2, TA = −40°C to +105°C, unless otherwise noted.
Table 2. Parameter Test Conditions/Comments Min Typ Max Unit
OUTPUT DATA RATE (ODR) AD7766 Decimate by 8 128 kHz AD7766-1 Decimate by 16 64 kHz AD7766-2 Decimate by 32 32 kHz ANALOG INPUT1 Differential Input Voltage VIN+ − VIN− ±VREF+ V p-p Absolute Input Voltage VIN+ −0.1 +VREF+ + 0.1 V VIN− −0.1 +VREF+ + 0.1 V Common-Mode Input Voltage VREF+/2 − 5% VREF+/2 VREF+/2 + 5% V Input Capacitance 22 pF DYNAMIC PERFORMANCE AD7766 Decimate by 8, ODR = 128 kHz Dynamic Range2 Shorted inputs 108 109.5 dB Signal-to-Noise Ratio (SNR)2 Full-scale input amplitude, 1 kHz tone 107 108.5 dB Spurious-Free Dynamic Range (SFDR)2 Full-scale input amplitude, 1 kHz tone −128 −116 dB Total Harmonic Distortion (THD)2 Full-scale input amplitude, 1 kHz tone −112 −103 dB Intermodulation Distortion (IMD)2 Tone A = 49.7 kHz, Tone B = 50.3 kHz Second-Order Terms −133 dB Third-Order Terms −109 dB AD7766-1 Decimate by 16, ODR = 64 kHz Dynamic Range2 Shorted inputs 111 112.5 dB Signal-to-Noise Ratio (SNR)2 Full-scale input amplitude, 1 kHz tone 110 111.5 dB Spurious-Free Dynamic Range (SFDR)2 Full-scale input amplitude, 1 kHz tone −128 −116 dB Total Harmonic Distortion (THD)2 Full-scale input amplitude, 1 kHz tone −112 −103 dB Intermodulation Distortion (IMD)2 Tone A = 24.7 kHz, Tone B = 25.3 kHz dB Second-Order Terms −133 dB Third-Order Terms −108 dB AD7766-2 Decimate by 32, ODR = 32 kHz Dynamic Range2 Shorted inputs 114 115.5 dB Signal-to-Noise Ratio (SNR)2 Full-scale input amplitude, 1 kHz tone 112 113.5 dB Spurious-Free Dynamic Range (SFDR)2 Full-scale input amplitude, 1 kHz tone −128 −116 dB Total Harmonic Distortion (THD)2 Full-scale input amplitude, 1 kHz tone −112 −103 dB Intermodulation Distortion (IMD)2 Tone A = 11.7 kHz, Tone B = 12.3 kHz dB Second-Order Terms −137 dB Third-Order Terms −108 dB DC ACCURACY1 For all devices Resolution No missing codes 24 Bits Differential Nonlinearity2 Guaranteed monotonic to 24 bits Integral Nonlinearity2 16-bit linearity ±6 ±15 ppm Zero Error2 20 μV Gain Error2 0.0075 0.075 % FS Zero Error Drift2 15 nV/°C Gain Error Drift2 0.4 ppm/°C Common-Mode Rejection Ratio2 50 Hz tone −110 dB Rev. C | Page 3 of 24 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION RELATED DEVICES TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS TIMING DIAGRAMS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION AD7766/AD7766-1/AD7766-2 TRANSFER FUNCTION CONVERTER OPERATION ANALOG INPUT STRUCTURE SUPPLY AND REFERENCE VOLTAGES AD7766/AD7766-1/AD77662-2 INTERFACE INITIAL POWER-UP READING DATA POWER-DOWN, RESET, AND SYNCHRONIZATION DAISY CHAINING READING DATA IN DAISY-CHAIN MODE CHOOSING THE SCLK FREQUENCY DAISY-CHAIN MODE CONFIGURATION AND TIMING DIAGRAMS DRIVING THE AD7766/AD7766-1/AD7766-2 DIFFERENTIAL SIGNAL SOURCE SINGLE-ENDED SIGNAL SOURCE ANTIALIASING POWER DISSIPATION VREF+ INPUT SIGNAL MULTIPLEXING ANALOG INPUT CHANNELS OUTLINE DIMENSIONS ORDERING GUIDE