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AD7569JN 数据表(PDF) 3 Page - Analog Devices |
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AD7569JN 数据表(HTML) 3 Page - Analog Devices |
3 / 20 page ADC SPECIFICATIONS AD7569 J, A Versions 3 AD7569 AD7669 K, B AD7569 AD7569 Parameter J Version Versions S Version T Version Units Conditions/Comments DC ACCURACY Resolution 3 8 8 8 8 Bits Total Unadjusted Error 4 ±3 ±3 ±4 ±4 LSB typ Relative Accuracy 4 ±1 ±1/2 ±1 ±1/2 LSB max Differential Nonlinearity 4 ±1 ±3/4 ±1 ±3/4 LSB max No Missing Codes Unipolar Offset Error Typical tempco is 10 µV/°C for +1.25 V range; V SS = 0 V @ +25 °C ±2 ± 1.5 ±2 ± 1.5 LSB max TMIN to TMAX ±3 ± 2.5 ±3 ± 2.5 LSB max Bipolar Zero Offset Error Typical tempco is 20 µV/°C for + 1.25 V range; V SS = –5 V @ +25 °C ±3 ± 2.5 ±3 ± 2.5 LSB max TMIN to TMAX ± 3.5 ±3 ±4 ± 3.5 LSB max Full-Scale Error 5 VDD = 5 V @ +25 °C –4, +0 –4, +0 –4, +0 –4, +0 LSB max TMIN to TMAX –5.5, +1.5 –5.5, +1.5 –7.5, +2 –7.5, +2 LSB max ∆Full Scale/∆V DD, TA = +25°C 0.5 0.5 0.5 0.5 LSB max VIN = +2.5 V; ∆VDD = ± 5% ∆Full Scale/∆V SS, TA = +25°C 0.5 0.5 0.5 0.5 LSB max VIN = –2.5 V; ∆VSS = ± 5% DYNAMIC PERFORMANCE Signal-to-Noise Ratio 4 (SNR) 44 46 44 45 dB min VIN = 100 kHz full-scale sine wave with fSAMPLING = 400 kHz 6 Total Harmonic Distortion 4 (THD) 48 48 48 48 dB max VIN = 100 kHz full-scale sine wave with fSAMPLING = 400 kHz 6 Intermodulation Distortion 4 (IMD) 60 60 60 60 dB typ fa = 99 kHz, fb = 96.7 kHz with fSAMPLING = 400 kHz Frequency Response 0.1 0.1 0.1 0.1 dB typ VIN = ± 2.5 V, dc to 200 kHz sine wave Track/Hold Acquisition Time 7 200 200 300 300 ns typ ANALOG INPUT Input Voltage Ranges Unipolar 0 to +1.25/ +2.5 Volts VDD = +5 V; VSS = 0 V Bipolar ±1.25/±2.5 Volts VDD = +5 V; VSS = –5 V Input Current ±300 ±300 ±300 ±300 µA max See equivalent circuit Figure 5 Input Capacitance 10 10 10 10 pF typ LOGIC INPUTS CS , RD, ST, CLK, RESET, RANGE Input Low Voltage, VINL 0.8 0.8 0.8 0.8 V max Input High Voltage, VINH 2.4 2.4 2.4 2.4 V min Input Capacitance 8 10 10 10 10 pF max CS , RD, ST, RANGE, RESET Input Leakage Current 10 10 10 10 µA max V IN = 0 to VDD CLK Input Current IINL –1.6 –1.6 –1.6 –1.6 mA max VIN = 0 V IINH 40 40 40 40 µA max VIN = VDD LOGIC OUTPUTS DB0–DB7, INT, BUSY VOL, Output Low Voltage 0.4 0.4 0.4 0.4 V max ISINK = 1.6 mA VOH, Output High Voltage 4.0 4.0 4.0 4.0 V min ISOURCE = 200 µA DB0–DB7 Floating State Leakage Current 10 10 10 10 µA max Floating State Output Capacitance 8 10 10 10 10 pF max Output Coding (Single Supply) Binary Output Coding (Dual Supply) 2s Complement CONVERSION TIME With External Clock 2 2 2 2 µs max fCLK = 5 MHz With Internal Clock, TA = +25°C 1.6 1.6 1.6 1.6 µs min Using recommended clock components shown in Figure 21. 2.6 2.6 2.6 2.6 µs max Clock frequency can be adjusted by varying RCLK. POWER REQUIREMENTS As per DAC Specifications NOTES 1 Except where noted, specifications apply for all ranges including bipolar ranges with dual supply operation. 2Temperature ranges are as follows: J, K versions; 0 °C to +70°C A, B versions; –40 °C to +85°C S, T versions; –55 °C to +125°C 31 LSB = 4.88 mV for 0 V to +1.25 V range, 9.76 mV for 0 V to +2.5 V and ±1.25 V ranges and 19.5 mV for +2.5 V range. 4See Terminology. 5Includes internal voltage reference error and is calculated after offset error has been adjusted out. Ideal unipolar last code transition occurs at (FS – 3/2 LSB). Ideal bipolar last code transition occurs at (FS/2 – 3/2 LSB). 6Exact frequencies are 101 kHz and 384 kHz to avoid harmonics coinciding with sampling frequency. 7Rising edge of BUSY to falling edge of ST. The time given refers to the acquisition time, which gives a 3 dB degradation in SNR from the tested figure. 8Sample tested at +25 °C to ensure compliance. Specifications subject to change without notice. (VDD = +5 V 5%; VSS 1 = RANGE = AGND DAC = AGNDDAC = DGND = 0 V; fCLK = 5 MHz external unless other- wise noted. All specifications TMIN to TMAX unless otherwise noted.) Specifications apply to Mode 1 interface. AD7569/AD7669 –3– REV. B |
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类似说明 - AD7569JN |
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