Datasheet AD7680 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | 3 mW, 100 kSPS, 16-Bit ADC in 6 Lead SOT-23 |
| Pages / Page | 25 / 5 — AD7680. SPECIFICATIONS1 |
| Revision | A |
| File Format / Size | PDF / 351 Kb |
| Document Language | English |
AD7680. SPECIFICATIONS1
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AD7680 SPECIFICATIONS1 Table 3. VDD = 2.5 V to 4.096 V, fSCLK = 2.5 MHz, fSAMPLE = 100 kSPS, unless otherwise noted; TA = TMIN to TMAX, unless otherwise noted. Parameter A Version 1 B Version1 Unit Test Conditions/Comments
DYNAMIC PERFORMANCE fIN = 10 kHz sine wave Signal-to-Noise + Distortion (SINAD)2 83 83 dB min VDD = 4.096 V 82 82 dB min VDD = 2.5 V to 3.6 V 86 86 dB typ Signal-to-Noise Ratio (SNR)2 84 84 dB min VDD = 4.096 V 83 83 dB min VDD = 2.5 V to 3.6 V 86 86 dB typ Total Harmonic Distortion (THD) 2 −98 −98 dB typ Peak Harmonic or Spurious Noise (SFDR)2 −95 −99 dB typ Intermodulation Distortion (IMD)2 Second-Order Terms −94 −94 dB typ Third-Order Terms −100 −100 dB typ Aperture Delay 20 10 ns max Aperture Jitter 30 30 ps typ Full Power Bandwidth 7 7 MHz typ @ −3 dB; VDD = 4.096 V 5 5 MHz typ @ −3 dB; VDD = 2.5 V to 3.6 V 2 2 MHz typ @ −0.1 dB; VDD = 4.096 V 1.6 1.6 MHz typ @ −0.1 dB; VDD = 2.5 V to 3.6 V DC ACCURACY No Missing Codes 14 15 Bits min Integral Nonlinearity2 ±3.5 ±3.5 LSB max VDD = 4.096 V ±3 ±3 LSB max VDD = 2.5 V to 3.6 V Offset Error2 ±1.25 ±1.25 mV max VDD = 4.096 V ±1.098 ±1.098 mV max VDD = 2.5 V to 3.6 V Gain Error2 ±0.038 ±0.038 % FS max ANALOG INPUT Input Voltage Ranges 0 to VDD 0 to VDD V DC Leakage Current ±0.3 ±0.3 μA max Input Capacitance 30 30 pF typ LOGIC INPUTS Input High Voltage, VINH 2.4 2.4 V min Input Low Voltage, VINL 0.4 0.4 V max Input Current, IIN ±0.3 ±0.3 μA max Typically 10 nA, VIN = 0 V or VDD Input Capacitance, C 2, 3 IN 10 10 pF max LOGIC OUTPUTS Output High Voltage, VOH VDD − 0.2 VDD − 0.2 V min ISOURCE = 200 μA Output Low Voltage, VOL 0.4 0.4 V max ISINK = 200 μA Floating-State Leakage Current ±0.3 ±0.3 μA max Floating-State Output Capacitance2, 3 10 10 pF max Output Coding Straight (Natural) Binary CONVERSION RATE Conversion Time 8 8 μs max 20 SCLK cycles with SCLK at 2.5 MHz 9.6 9.6 μs max 24 SCLK cycles with SCLK at 2.5 MHz Track-and-Hold Acquisition Time 1.5 1.5 μs max Full-scale step input 400 400 ns max Sine wave input ≤ 10 kHz Throughput Rate 100 100 kSPS See the Serial Interface section Rev. A | Page 4 of 24 Document Outline SPECIFICATIONS SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION ANALOG INPUT ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM Digital Inputs MODES OF OPERATION NORMAL MODE POWER-DOWN MODE POWER VS. THROUGHPUT RATE SERIAL INTERFACE AD7680 TO ADSP-218x APPLICATION HINTS GROUNDING AND LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE
AD7680 SPECIFICATIONS1 Table 3. VDD = 2.5 V to 4.096 V, fSCLK = 2.5 MHz, fSAMPLE = 100 kSPS, unless otherwise noted; TA = TMIN to TMAX, unless otherwise noted. Parameter A Version 1 B Version1 Unit Test Conditions/Comments
DYNAMIC PERFORMANCE fIN = 10 kHz sine wave Signal-to-Noise + Distortion (SINAD)2 83 83 dB min VDD = 4.096 V 82 82 dB min VDD = 2.5 V to 3.6 V 86 86 dB typ Signal-to-Noise Ratio (SNR)2 84 84 dB min VDD = 4.096 V 83 83 dB min VDD = 2.5 V to 3.6 V 86 86 dB typ Total Harmonic Distortion (THD) 2 −98 −98 dB typ Peak Harmonic or Spurious Noise (SFDR)2 −95 −99 dB typ Intermodulation Distortion (IMD)2 Second-Order Terms −94 −94 dB typ Third-Order Terms −100 −100 dB typ Aperture Delay 20 10 ns max Aperture Jitter 30 30 ps typ Full Power Bandwidth 7 7 MHz typ @ −3 dB; VDD = 4.096 V 5 5 MHz typ @ −3 dB; VDD = 2.5 V to 3.6 V 2 2 MHz typ @ −0.1 dB; VDD = 4.096 V 1.6 1.6 MHz typ @ −0.1 dB; VDD = 2.5 V to 3.6 V DC ACCURACY No Missing Codes 14 15 Bits min Integral Nonlinearity2 ±3.5 ±3.5 LSB max VDD = 4.096 V ±3 ±3 LSB max VDD = 2.5 V to 3.6 V Offset Error2 ±1.25 ±1.25 mV max VDD = 4.096 V ±1.098 ±1.098 mV max VDD = 2.5 V to 3.6 V Gain Error2 ±0.038 ±0.038 % FS max ANALOG INPUT Input Voltage Ranges 0 to VDD 0 to VDD V DC Leakage Current ±0.3 ±0.3 μA max Input Capacitance 30 30 pF typ LOGIC INPUTS Input High Voltage, VINH 2.4 2.4 V min Input Low Voltage, VINL 0.4 0.4 V max Input Current, IIN ±0.3 ±0.3 μA max Typically 10 nA, VIN = 0 V or VDD Input Capacitance, C 2, 3 IN 10 10 pF max LOGIC OUTPUTS Output High Voltage, VOH VDD − 0.2 VDD − 0.2 V min ISOURCE = 200 μA Output Low Voltage, VOL 0.4 0.4 V max ISINK = 200 μA Floating-State Leakage Current ±0.3 ±0.3 μA max Floating-State Output Capacitance2, 3 10 10 pF max Output Coding Straight (Natural) Binary CONVERSION RATE Conversion Time 8 8 μs max 20 SCLK cycles with SCLK at 2.5 MHz 9.6 9.6 μs max 24 SCLK cycles with SCLK at 2.5 MHz Track-and-Hold Acquisition Time 1.5 1.5 μs max Full-scale step input 400 400 ns max Sine wave input ≤ 10 kHz Throughput Rate 100 100 kSPS See the Serial Interface section Rev. A | Page 4 of 24 Document Outline SPECIFICATIONS SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION ANALOG INPUT ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM Digital Inputs MODES OF OPERATION NORMAL MODE POWER-DOWN MODE POWER VS. THROUGHPUT RATE SERIAL INTERFACE AD7680 TO ADSP-218x APPLICATION HINTS GROUNDING AND LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE
